【正文】 ng industry(C) returning government to normal(D) increasing taxes46. The word task in line 13 refers to D(A) raising the tax level(B) sensible financial choices(C) worse decisions about former slaves(D) reconstruction of damaged areas47. Why does the author mention a popular song in lines 17? A(A) To give attitude towards the South(B) To illustrate the Northern love of music(C) To emphasize the cultural differences between the North and the South(D) To pare the Northern and Southern presidents48. Which of the following can be inferred from the phrase _____it was unlikely that a jury from Virginia . a Southern Confederate state ,would convict them (lines 2021)? B(A) Virginians felt betrayed by Jefferson Davis(B) A popular song insulted Virginians (C) Virginians were loyal to their leaders(D) All of the Virginia military leaders had been put in chains.49. The word them in line 21 refers to C(A) charges(B) leaders(C) days(D) irons50. It can be inferred from the passage that President Johnson pardoned the Southern leaders in order to D(A) raise money for the North(B) repair the physical damage in the South(C) prevent Northern leaders from punishing more Southerners(D) help the nation recover from the warQuestions 113Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher, the sequoia tree can pump water to its very top, more than 100 meters above the ground. Until the end of the nineteenth century, the movement of water in trees and other tall plants was a mystery. Some botanists hypothesized that the living cells of plants acted as pumps, But many experiments demonstrated hat the stems of plants in which all the cells are killed can still move water to appreciable heights. Other explanations for the movement of water in plants have been based on root pressure, a push on the water from the roots at the bottom of the plant. But root pressure is not nearly great enough to push water to the tops of tall trees. Furthermore, the conifers, which are among the tallest trees, have unusually low root pressures. If water is not pumped to the top of a tall tree, and if it is not pushed to the top of a tall tree, then we may ask, How does it get there? According to the currently accepted cohesiontension theory, water is pulled there. The pull on a rising column of water in a plant results from the evaporation of water at the top of the plant. As water is lost from the surface of the leaves, a negative pressure, or tension, is created. The evaporated water is replaced by water moving from inside the plant in unbroken columns that extend from the top of a plant to its roots. The same forces that create surface tension in any sample of water are responsible for the maintenance of these unbroken columns of water. When water is confined in tubes of very small bore, the forces of cohesion (the attraction between water molecules) are so great that the strength of a column of water pares with the strength of a steel wire of the same diameter. This cohesive strength permits columns of water to be pulled to great heights without being broken.1. How many theories does the author mention? C(A) One(B) Two(C) Three(D) Four2. The passage answers which of the following questions? C(A) What is the effect of atmospheric pressure on foliage?(B) When do dead cells harm plant growth?(C) How does water get to the tops of trees?(D) Why is root pressure weak3. The word demonstrated in line5 is closest in meaning to B(A) ignored(B) showed(C) disguised(D) distinguished4. What do the experiments mentioned in lines 46 prove? B(A) Plant stems die when deprived of water(B) Cells in plant stems do not pump water(C) Plants cannot move water to high altitudes(D) Plant cells regulate pressure within stems5. How do botanists know that root pressure is not the only force that moves water in plants? A(A) Some very tall trees have weak root pressure.(B) Root pressures decrease in winter.(C) Plants can live after their roots die.(D) Water in a plant39。s baby boom begin? B(A) In the decade after 1911(B) After 1945(C) During the depression of the 193039。s history, in the decade before 1911, when the prairies were being settled. Undoubtedly, the good economic conditions of the 195039。s impressive population growth. For every three Canadians in 1945, there were over five in 1996. In September 1966 Canada39。s past climates. Deep – ocean sediments provide a climatic record stretching back hundreds of millions of years, because they are largely isolated from the mechanical erosion and the intense chemical and biological activity that rapidly destroy much land – based evidence of past climates. This record has already provided insights into the patterns and causes of past climatic change – information that may be used to predict future climates.1. The author refers to the ocean bottom as a frontier in line 1 because it D(A) is not a popular area for scientific research(B) contains a wide variety of life forms(C) attracts courageous explorers(D) is an unknown territory2. The word inaccessible in line 3 is closest in meaning to B(A) unrecognizable(B) unreachable(C) unusable(D) unsafe3. The author mentions “outer space” in line 5 because B(A) the Earth39。s drill ship, the Glomar Challenger, was able to maintain a steady position on the ocean39。老托福精選9505閱讀理解原文、真題及答案 此版本已將999年答案補上,請放心使用請大家點擊word文檔中的顯示/隱藏按鈕進行顯示/隱藏答案，或者使用快捷鍵ctrl+shift+8。s Deep Sea Drilling Project (DSDP). Using techniques first developed for the offshore oil and gas industry, the DSDP39。s voyages, nearly all earth scientists agree on the theories of plate tectonics and continental drift that explain many of the geological processes that shape the Earth. The cores of sediment drilled by the Glomar Challenger have als