It was only after World War II had drawn to a close ______ in the United States.
题型：不详难度：来源：
It was only after World War II had drawn to a close ______ in the United States.| A．did the baby boom begin | B．that the baby boom began | | C．when the baby boom began | D．then the baby boom began |
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答案
| B |
解析
试题分析：：考查强调句型。本题考查强调句型：it is/was被强调成分that/who…；强调句型的最大特点是把it is/was…that/who…去掉句子仍然成立。本题强调的是主语only after World War II had drawn to a close句意：只有在第二次世界大战结束后，美国人口出生快速增才开始。故B正确。
点评：本题考查强调句型：it is/was被强调成分that/who…；强调句型的最大特点是把it is/was…that/who…去掉句子仍然成立。这题不要和only+状语+倒装句混起来，因为只有only+状语在句首才倒装。 |
举一反三
In my opinion, all Mr Li ______ good to his students in his class at present. He is very strict with them in their studies.| A．does does does | B．does does do | C．does do did | D．did do does |
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It was not until Mum agreed to buy him a computer, _______ was his favorite, _______ the boy promised to study hard.| A．that; that | B．which; that | C．that; which | D．which; which |
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—____ you got to know my telephone number?
—Through a friend of yours.| A．What was it that | B．How did | C．Where was it | D．How was it that |
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Is this the factory ______ my father visited last year.| A．what | B．the one | C．where | D．that |
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| It was my sister first had the idea to cycle along the river. |
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