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b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæC b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæQuestion 1-8b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ When Jules Verne wrote Journey to the Center of the Earth in 1864, there were many conflicting theories about the nature of the Earth's interior. Some geologists thought that it contained a highly compressed ball of incandescent gas, while others suspected that it consisted of separate shells, each made of a different material. Today, well over a century later, there is still little direct evidence of what lies beneath our feet. Most of our knowledge of the Earth's interior comes not from mines or boreholes, but from the study of seismic waves - powerful pulses of energy released by earthquakes.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The way that seismic waves travel shows that the Earth's interior is far from uniform. The continents and the seabed are formed by the crust - a thin sphere of relatively light, solid rock. Beneath the crust lies the mantle, a very different layer that extends approximately halfway to the Earth's center. There the rock is the subject of a battle between increasing heat and growing pressure.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ In its high levels, the mantle is relatively cool; at greater depths, high temperatures make the rock behave more like a liquid than a solid. Deeper still, the pressure is even more intense, preventing the rock from melting in spite of a higher temperature.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Beyond a depth of around 2,900 kilometers, a great change takes place and the mantle gives way to the core. Some seismic waves cannot pass through the core and others are bent by it. From this and other evidence, geologists conclude that the outer core is probably liquid, with a solid center. It is almost certainly made of iron, mixed with smaller amounts of other elements such as nickel.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The conditions in the Earth's core make it a far more alien world than space. Its solid iron heart is subjected to unimaginable pressure and has a temperature of about 9,000oF. Although scientists can speculate about its nature, neither humans nor machines will ever be able to visit it.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ1.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "conflicting" in line 2 is closest in meaning tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ controllingb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ outdatedb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ opposingb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ importantb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ2.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ What is today's richest source of information about the Earth's interior for geologists?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Boreholesb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Shellsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Seismic wavesb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Minesb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ3.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "There" in line 12 refers to the b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ mantleb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ crustb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ seabedb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Earth's center.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ4.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Which of the following is a primary characteristic of the Earth's mantle?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Light, solid rockb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Uniformity of compositionb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Dramatically increasing pressureb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Compressed, incandescent gasb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ5.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The phrase "gives way to" in line 18 is closest in meaning tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ runs alongb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ rubs againstb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ turns intob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ floats onb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ6.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "it" in line 19 refers tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ mantleb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ coreb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ changeb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ depthb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ7.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Why does the author state in line 22 that the Earth's core is "more alien" than space?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Government funds are not available to study the Earth's core.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Scientists aren't interested in the characteristics of the Earth's core.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ It is impossible to go to the Earth's core to do research.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The Earth's core is made of elements that are dangerous to humans.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ8.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "speculate" in line 24 is closest in meaning tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ reportb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ learnb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ worryb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ hypothesizeb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæQuestion 9-20b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Despite the road improvements of the turnpike era (1790-1830). Americans continued as in colonial times to depend wherever possible on water routes for travel and transportation. The larger rivers, especially the Mississippi and the Ohio, became increasingly useful as steamboats grew in number and improved in design.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ River boats carried to New Orleans the corn and other crops of northwestern farmers, the cotton and tobacco of southwestern planters. From New Orleans, ships took the cargoes on to eastern seaports. Neither the farmers of the west nor the merchants of the east were completely satisfied with this pattern of trade. Farmers could get better prices for their crops if the alternative existed of sending them directly eastward to market and merchants could sell larger quantities of their manufactured goods if these could be transported more directly and more economically to the west. b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ New waterways were needed. Sectional jealousies and constitutional scruples stood in the way of action by the federal government and necessary expenditures were too great for private enterprise. If extensive canals were to be dug, the job would be up to the various states.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ New York was the first to act. It had the natural advantage of a comparatively level route between the Hudson River and Lake Erie, through the only break in the entire Appalachian Mountain chain. Yet the engineering tasks were imposing. The distance was more than 350 miles and there were ridges to cross and a wilderness of woods and swamps to penetrate. The Erie Canal begun in 1817 and completed in 1825, was by far the greatest construction job that Americans had ever undertaken. It quickly proved a financial success as well. The prosperity of the Erie encouraged the state to enlarge its canal system by building several branches.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The range of the New York canal system was still further extended when the states of Ohio and Indiana, inspired by the success of the Erie Canal, provided water connections between Lake Erie and the Ohio River.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ9.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ What does the passage suggest was the principal route for transporting crops to the east prior in 1825?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ River to roadb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Canal to riverb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ River to oceanb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Road to canal.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ10.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ It can be inferred from the passage that shipping cargo east by way of New Orleans wasb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Advantageous for manufacturesb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Inexpensive for merchantsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Not economical for farmersb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Considered economical by the governmentb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ11.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "alternative" in line 9 is closest in meaning tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ optionb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B) transitionb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C) intentionb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D) authorizationb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ12.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "them" in line 9 refers to b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ cropsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ farmersb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ pricesb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ merchantsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ13.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Which of the following products would a northwestern farmer in the early nineteenth century be most likely to purchase from the east?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Grainb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Vegetablesb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Textilesb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Fruit.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ14.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ According to the passage, where was the Erie Canal located?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Between Ohio and Indiana.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Along the Appalachian Mountainsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Between Lake Erie and the Ohio Riverb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Across New York State.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ15.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "imposing" in line 18 could best be replaced by b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ impracticalb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ successfulb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ demandingb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ misleadingb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ16.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "penetrate" in line 20 is closest in meaning tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ cut downb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ go throughb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ fill upb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ take overb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ17.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "its" in line 22 refers tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ prosperityb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Erieb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Systemb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Stateb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ18.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "extended" in line 24 is closest in meaning tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ increasedb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ constructedb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ deepenedb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ measuredb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ19.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ According to the passage, Indiana and Ohio supported the development of the New York canal system byb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ helping to build the Erie Canal.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Building branches to connect it with the Ohio Riverb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Providing much of the water for the Erie Canal.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Contributing financially to the construction costsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ20.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ What does the paragraph following the passage probably discuss?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Industry on Lake Erieb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Canals in Ohio and Indianab¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Sectional jealousies in Indiana and Ohiob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Travel on the Erie Canal.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæQuestion 21-31b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Legend has it that sometime toward the end of the Civil War (1861-1865) a government train carrying oxen traveling through the northern plains of eastern Wyoming was caught in a snowstorm and had to be abandoned. The driver returned the next spring to see what had become of his cargo. Instead of the skeletons he had expected to find, he saw his oxen, living, fat, and healthy. How had they survived?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The answer lay in a resource that unknowing Americans lands trampled underfoot in their haste to cross the "Great American Desert" to reach lands that sometimes proved barren. In the eastern parts of the United States, the preferred grass for forage was a cultivated plant. It grew well with enough rain, then when cut and stored it would cure and become nourishing hay for winter feed. But in the dry grazing lands of the West that familiar bluejoint grass was often killed by drought. To raise cattle out there seemed risky or even hopeless.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Who could imagine a fairy-tale grass that required no rain and somehow made it possible for cattle to feed themselves all winter? But the surprising western wild grasses did just that. They had wonderfully convenient features that made them superior to the cultivated eastern grasses. Variously known as buffalo grass, grama grass, or mesquite grass, not only were they immune to drought; but they were actually preserved by the lack of summer and autumn rains. They were not juicy like the cultivated eastern grasses, but had short, hard stems. And they did not need to be cured in a barn, but dried right where they grew on the ground. When they dried in this way, they remained naturally sweet and nourishing through the winter. Cattle left outdoors to fend for themselves thrived on this hay. And the cattle themselves helped plant the fresh grass year after year for they trampled the natural seeds firmly into the soil to be watered by the melting snows of winter and the occasional rains of spring. The dry summer air cured them much as storing in a barn cured the cultivated grasses.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ21.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ What does the passage mainly discuss?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Western migration after the Civil Warb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The climate of the western United Statesb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The raising of cattle.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ A type of wild vegetationb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ22.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ What can be inferred by the phrase "Legend has it" in line 1?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The story of the train may not be completely factual.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Most history books include the story of the train.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The driver of the train invented the story.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The story of the train is similar to other ones from that time period.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ23.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "they" in line 5 refers to b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ plains b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ skeletonsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ oxenb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Americansb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ24.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ What can be inferred about the "Great American Desert" mentioned in line 7?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ It was not originally assumed to be a fertile area.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Many had settled there by the 1860's.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ It was a popular place to raise cattle before the Civil War.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ It was not discovered until the late 1800's.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ25.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "barren" in line 8 is closest in meaning tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ lonelyb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ dangerousb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ uncomfortableb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ infertile.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ26.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "preferred" in line 8 is closest in meaning tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ ordinaryb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ availableb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ requiredb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ favoredb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ27.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Which of the following can be inferred about the cultivated grass mentioned in the second paragraph?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Cattle raised in the western United States refused to eat it.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ It would probably not grow in the western United States.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ It had to be imported into the United States.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ It was difficult for cattle to digest.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ28.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Which of the following was NOT one of the names given to the Western grasses?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Grama grassb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Bluejoint grassb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Buffalo grassb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Mesquite grassb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ29. Which of the following was NOT mentioned as a characteristic of western grasses?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ They have tough stems.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ They are not affected by dry weather.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ They can be grown indoors.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ They contain little moisture.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ30.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "hard" in line 19 is closest in meaning tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ firmb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ severeb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ difficultb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ bitterb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ31.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ According to the passage, the cattle helped promote the growth of the wild grasses byb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ stepping on and pressing the seeds into the groundb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ naturally fertilizing the soilb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ continually moving from one grazing area to anotherb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ eating only small quantities of grass.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæQuestion 32-44b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Seventeenth-century houses in colonial North America were simple structures that were primarily functional carrying over traditional designs that went back to the Middle Ages. During the first half of the eighteenth century, however, houses began to show a new elegance. As wealth increased, more and more colonists built fine houses.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Since architecture was not yet a specialized profession in the colonies, the design of buildings was left either to amateur designers or to carpenters who undertook to interpret architectural manuals imported from England. Inventories of colonial libraries show an astonishing number of these handbooks for builders, and the houses erected during the eighteenth century show their influence. Nevertheless, most domestic architecture of the first three-quarters of the eighteenth century displays a wide divergence of taste and freedom of application of the rules laid down in these books.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Increasing wealth and growing sophistication throughout the colonies resulted in houses of improved design, whether the material was wood, stone, or brick. New England still favored wood, though brick houses became common in Boston and other towns, where the danger of fire gave an impetus to the use of more durable material. A few houses in New England were built of stone, but only in Pennsylvania and adjacent areas was stone widely used in dwellings. An increased use of brick in houses and outbuildings is noticeable in Virginia and Maryland, but wood remained that most popular material even in houses built by wealthy landowners. In the Carolinas, even in closely packed Charleston, wooden houses were much more common than brick houses.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Eighteenth-century houses showed great interior improvements over their predecessors. Windows were made larger and shutters removed. Large, clear panes replaced the small leaded glass of the seventeenth century. Doorways were larger and more decorative. Fireplaces became decorative features of rooms. Walls were made of plaster or wood, sometimes elaborately paneled. White paint began to take the place of blues, yellows, greens, and lead colors, which had been popular for walls in the earlier years. After about 1730, advertisements for wallpaper styles in scenic patterns began to appear in colonial newspapers.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ32.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ What does the passage mainly discuss?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The improved design of eighteenth-century colonial houses.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ A comparison of eighteenth-century houses and modern houses.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The decorations used in eighteenth-century houses.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The role of carpenters in building eighteenth-century houses.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ33.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ What was one of the main reasons for the change in architectural style in eighteenth-century North America?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ More architects arrived in the colonies.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The colonists developed an interest in classical architecture.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Bricks were more readily available.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The colonists had more money to spend on housing.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ34.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ According to the passage, who was responsible for designing houses in eighteenth-century North America?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Professional architectsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Customersb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Interior decoratorsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Carpenters.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ35.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The passage implies that the rules outlined in architectural manuals wereb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ generally ignoredb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ legally bindingb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ not strictly adhered tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ only followed by older buildersb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ36.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "divergence" in line 11 is closest in meaning tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ descriptionb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ developmentb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ differenceb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ displayb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ37.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "durable" in line 15 is closest in meaning tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ attractiveb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ expensiveb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ refinedb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ long-lastingb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ38.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Where was stone commonly used to build houses?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Virginiab¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Pennsylvaniab¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Bostonb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Charlestonb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ39.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "dwellings" in line 17 is closest in meaning tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ housesb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ townsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ outbuildingsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ rural areasb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ40.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "predecessors" in line 23 refers tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ colonist who arrived in North America in the seventeenth century.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ houses constructed before the eighteenth centuryb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ interior improvementsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ wooden houses in Charlestonb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ41.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The author mentions elaborately paneled walls in line 26 as an example of b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ how the interior design of colonial houses was improved.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ why walls were made of wood or plaster.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ How walls were made stronger in the eighteenth century.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ What kind of wood was used for walls after 1730.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ42.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The word "elaborately" in line 26 is closest in meaning tob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ done in great detailb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ put together carefullyb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ using many colorsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ reinforced structurallyb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ43.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ What does the author imply about the use of wallpaper before 1730?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Wallpaper samples appeared in the architectural manuals.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Wallpaper was the same color as the wall paints usedb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Patterned wallpaper was not widely used.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Wallpaper was not used in stone house.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ44.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Where in the passage does the author give a reason why brick was the preferred material for houses in some urban areas?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Lines 9-11b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Lines 13-15b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Lines 17-19b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Lines 23-24b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæQuestion 45-50b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Bloodhounds are biologically adapted to trailing their prey. The process by which the nose recognizes an odor is not fully understood, but there are apparently specific receptor sites for specific odors. In one explanation, recognition occurs when a scent molecule fits into its corresponding receptor site, like a key into a lock, causing a mechanical or chemical change in the cell. Bloodhounds apparently have denser concentrations of receptor sites tuned to human scents.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ When a bloodhound trails a human being, what does it actually smell? The human body, which consists of about 60 trillion living cells, sheds exposed skin at a rate of 50 million cells a day. So even a trail that has been dispersed by breezes may still seem rich to a bloodhound. The body also produces about 31 to 50 ounces of sweat a day. Neither this fluid nor the shed skin cells have much odor by themselves, but the bacteria working on both substances is another matter. One microbiologist estimates the resident bacteria population of a clean square centimeter of skin on the human shoulder at "multiples of a million." As they go about their daily business breaking down lipids, or fatty substances, on the skin, these bacteria release volatile substances that usually strike the bloodhound's nose as an entire constellation of distinctive scents.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ45.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ What does the passage mainly discuss?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Why people choose bloodhounds for household petsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ How a bloodhound's sense of smell worksb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ How humans compensate for an underdeveloped sense of smellb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The way in which bacteria work on skin cells and body sweat.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ46.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ The author compares a scent molecule with a b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ keyb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ lockb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ cellb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ bloodhoundb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ47.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ In line 7, the word "it" refers to b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ bloodhoundb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ human beingb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ smellb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ bodyb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ48.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ According to the passage, how many cells of skin does the human body rid itself of every day?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ 60 trillionb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ 50 millionb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ 1 millionb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Between 31 and 50b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ49.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ In line 10, the word "rich" is used to mean that a trail isb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ paved with precious materialsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ a profitable business to get intob¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ a very costly undertakingb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ filled with an abundance of clues.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ50.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Which of the following acts as a stimulus in the production of the human scent?b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(A)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Sweatb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(B)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Dead skin cellsb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(C)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Bacteriab¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ(D)b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ Fatty substances.b¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæb¡s¼Gÿ4Åforum.liuxuehome.com#ÉñÇæ
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