27. Some scientists believe that a breakthrough in the use of solar energy depends on __________.
A) sufficient funding B) further experiments
C) advanced technology D) well-equipped laboratories
注:A選項(xiàng)講到資金;C講第三段,為竄段選項(xiàng);D涉及句子次要成分的選項(xiàng),
●涉及句子當(dāng)中主要成分選項(xiàng)優(yōu)選于涉及次要成分選項(xiàng),次要成分包括:插入語(yǔ),同位語(yǔ)
The senior West German scientist in charge of the Community's solar energy program, Mr. Joachim Gretz, told journalists that at present levels of research spending it was most unlikely that solar energy would provide as much as three percent of the Community's energy requirements even after the year 2,000. But he said that with a modest increase in the present sums, devoted by the EEC to this work it was possible that the breakthrough could be achieved by the end of the next decade.
Questions 36 to 40 are based on the following passage:
36. The major problems with America's railroad system in the mid 19th century lay in _________.
A) poor quality rails and unreliable stopping systems
B) lack of financial support for development
C) limited railroad lines
D) lack of a transcontinental railroad
37. The building of the first transcontinental system _________.
A) brought about a rapid growth of industry and farming in the west
B) attracted many visitors to the construction sites
C) attracted laborers from Europe
D) encouraged people to travel all over the country
38. The best title for this passage would be ________
A) Settlements Spread Westward
B) The Coast-to-Coast Railroad: A Vital Link
C) American Railroad History
D) The Importance of Railroads in the American Economy
39. The construction of the transcontinental railroad took _________.
A) 9 years B) 7 years
C) 4 years D) 3 years
40. What most likely made people think about a transcontinental railroad?
A) The possibility of government support for such a task.
B) The need to explore Utah.
C) The need to connect the east coast with the west.
D) The need to develop the railroad industry in the west.
Questions 36 to 40 are based on the following passage:
A rapid means of long-distance transportation became a necessity for the United States as settlement (新拓居地) spread ever farther westward. The early trains were impractical curiosities, and for a long time the railroad companies met with troublesome mechanical problems. The most serious ones were the construction of rails able to bear the load, and the development of a safe, effective stopping system. Once these were solved, the railroad was established as the best means of land transportation. By 1860 there were thousands of miles of railroads crossing the eastern mountain ranges and reaching westward to the Mississippi. There were also regional southern and western lines.
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安徽 | 浙江 | 江西 | 福建 | 深圳 |
廣東 | 河北 | 湖南 | 廣西 | 河南 |
海南 | 湖北 | 四川 | 重慶 | 云南 |
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