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關閉窗口 這是形式主語it還是there be句型
下面這道題是考查形式主語it還是there be句型?
Have __________ been any changes in your home town?
A. it B. you C. that D. there
此題應選D。容易誤選A，誤認為這里應填形式主語。
其實考生只要想一想，假若選A，it是形式主語，那么請問此句真正的主語是什么? (找不到!)
正確的分析：此句為there be-句型，這里要特別注意的是：there be-結構不僅可以有各種時態，而且還可以與情態動詞以及 happen, appear, seem 等動詞連用。本題用的就是there be-句型的現在完成時態的一般疑問句形式。
以下各句用的是否是 there be-句型，你看得出來嗎?
1. There is going to _________ an English film the day after tomorrow.
A. have B. be C. do D. see
2. _________ have been many such accidents here.
A. It B. There C. They D. We
3. ________ used to be a big tree in front of the old house.
A. It B. There C. They D. That
4. There must have _________ something wrong with the machine.
A. been B. gone C. had D. done
5. _________ happened to be a foreign teacher there.
A. It B. There C. They D. That
6. There seems to __________ a storm soon.
A. have B. be C. fall D. blow
答案：1. B 2. B 3. B 4. A 5. B 6. B
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