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四、考查not...until句式的強調結構

其基本形式為It is (was) not until…that…。比較：

He didn't come until his wife left. 他妻子走了之后他才來。

→It was not until his wife left that he came. 他妻子走了之后他才來。

They didn't start until the rain stopped. 直到雨停他們才出發。

→It was not until the rain stopped that they started. 直到雨停他們才出發。

注：這類句型不用倒裝語序，但若改成Not until…，則要用倒裝。如：

Not until his wife left did he come. 他妻子走了之后他才來。

Not until the rain stopped did they start. 直到雨停他們才出發。

【真題實例】（答案分別為DBD）

1. It _________ we had stayed together for a couple of weeks _________ I found we had a lot in common.

A. was until; when     B. was until; that       C. wasn’t until; when   D. wasn’t until; that

2. It was not until she got home _________ Jennifer realized she had lost her keys.

A. when                   B. that                      C. where                      D. before

3. It wasn’t until nearly a month later _________ I received the manager’s reply.

A. since                    B. when                   C. as                            D. that

五、考查強調句與非強調句的辨別

1. 設置陷阱，使考生將強調句誤判為非強調句。如：

It might have been John _________ bought a present for Mary yesterday.

A. that                       B. when                  C. what                      D. which

【解析】答案選A，為強調句型，由于句中動詞be采用了might have been這一復雜結構，所以許多同學們可能會看不出它是一個強調句型。

2. 設置陷阱，使考生將非強調句誤判為強調句。如：

It was evening       we reached the little town of Winchester.

A. that                       B. until                    C. since                     D. before

【解析】答案選D。有的考生一看到句首的it was，再聯系到選項中的that，就以為這是考查強調句。其實錯了。此題是考查連詞before的用法。因為去掉It was…that這一結構后，原句不能成為一個完整的句子，所以這不是強調結構。句意是：我們還沒有到達Winchester這個小鎮，天就夜了。

【現用現學】

01. — When was _________?

—_________ was in 2000 when he was still in college.

A. that; This              B. this; It                 C. it; This                 D. that; It

02. It was his nervousness in the interview _________ probably lost him the job.

A. which                   B. since                   C. that                      D. what

03. It was what he meant rather than what he said _________ annoyed me.

A. which                   B. as                       C. what                      D. that

04. “How was _________ they discovered the entrance to the underground palace?” “Totally by chance.”

A. it that                     B. he that                C. it when                  D. he which

05. Who was it _________ saved the drowning girl?

A. since                      B. as                       C. that                       D. he

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