2011年08月22日 09时16分，《今年英语:2011年工程硕士GCT英语复习辅导专栏7(2)》由留学群liuxuequn.com英语编辑整理.

That the earth goes around the sun is well-known to everybody.地球围绕着太阳转是众所周知的事实。（= It is well-known to everybody that the earth goes around the sun.）
谓语动词单数。
只能使用whether表示是否， if 不可以使用
用何连词看从句中缺少什么成分来决定
表语从句
1. The problem is who we can get to replace her.
2. That is what he meant.
3. The question is how he did it.
4. That’s where he lives.
5. This was when I really got to know the United States.
6. Things are not always as they seem to be.
7. His first question was whether Tom had arrived yet.
8. The problem is that he does not come.
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