2. 职称英语
  3. Directions: An introductory sentence for a brief summary of the passage is provi

Directions: An introductory sentence for a brief summary of the passage is provi

游客2025-02-05  22
问题 Directions: An introductory sentence for a brief summary of the passage is provided on the next page. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage.
Write your answer choices in the spaces where they belong. You can either write the letter of your answer choice or you can copy the sentence.
The Industrial Revolution would not have been possible without a new source of power that was efficient, movable, and continuously available.
                        Answer Choices
[A]In the early eighteenth century, Savery and Newcomen discovered that expanding steam could be used to raise a piston in a cylinder.
[B]In the mid-1700s, James Watt transformed an inefficient steam pump into a fast, flexible, fuel-efficient engine.
[C]Watt’s steam engine played a leading role in greatly increasing industrial production of all kinds.
[D]In the 1790s, William Murdoch developed a new way of lighting houses and streets using coal gas.
[E]Until the 1830s, Britain was the world’s major producer of steam engines.
[F]The availability of steam engines was a major factor in the development of railroads, which solved a major transportation problem.
选项
答案 B, C, F
解析
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