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2024-01-03  79
问题 Directions: An introductory sentence for a brief summary of the passage is provided below. 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.
Human population on Earth is affecting both the atmosphere and the ecosystems.
                        Answer Choices
[A]The survival of organisms on Earth is directly related to the amount of fossil fuels that are consumed.
[B]Atmospheric carbon dioxide concentrations are rising quickly.
[C]Scientists are working on ways to make precise forecasts of how the increase of greenhouse gases will affect Earth.
[D]Scientists predict that temperature changes would be greater at the poles than at the equator.
[E]Global circulation models can be used to measure the concentrations of chlorofluorocarbons in the atmosphere.
[F]The ability to make accurate predictions about global climate presents several difficulties.
选项
答案 B, C, F
解析
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