2. 外语
  3. In a telephone survey of more than 2, 000 adults, 21% said they believed the sun revolved(旋转)around the earth. An【C1】______7% di

In a telephone survey of more than 2, 000 adults, 21% said they believed the sun revolved(旋转)around the earth. An【C1】______7% di

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问题     In a telephone survey of more than 2, 000 adults, 21% said they believed the sun revolved(旋转)around the earth. An【C1】______7% did not know which revolved around【C2】______. I have no doubt that【C3】______all of these people were【C4】______in school that the earth revolves around the sun.【C5】______may even have written it【C6】______a test. But they never【C7】______their incorrect mental models of planetary(行星的)motion【C8】______their everyday observations didn’t support【C9】______they know. Their teachers told them people see the sun "moving【C10】______the sky as morning turns to night, and the earth seems stationary(静止的)【C11】______that is happening. Students can learn the right answers【C12】______heart in class, and yet never combined them【C13】______their working models of the world. The objectively correct answer the professor accepts and the【C14】______personal understanding of the world can exist side by side, each【C15】______by the other.
     Outside of class, the student continues to use the【C16】______model because it has always worked well【C17】______that circumstance. Unless professors address【C18】______errors in students’ personal models of the world, students are not【C19】______to replace them with the【C20】______one.
【C8】
选项 A、when
B、though
C、because
D、if
答案C
解析 本题考查原因状语从句的用法。因为前面的句子和后面的句子形成了因果关系，因此可以排除选项A、B和D，答案只能选C。
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