1.The factory was built in a secret place, around ______ high mountains.

A. which was B. it was C. which were D.them were

【易錯】容易誤選A或B，將A、B中的 which 和 it 誤認(rèn)為是其后句子的主語。

【分析】最佳答案是C，around which were high mountains 是一個由“介詞+which”引出的非限制性定語從句，而在該從句中，主語是 high mountains，around which 是表語，所以句子謂語應(yīng)用復(fù)數(shù)were，而不是用單數(shù) was。請做以下類例題目（答案均為C）：

(1) Yesterday we visited a modern hospital, around _______ some fruit shops.

A. which is B. it is C. which are D. them are

(2) The murder happened in an old building, beside ______ the city police station.

A. which are B. it is C. which is D. them are

2.A man with a bleeding hand hurried in and asked, “Is there a hospital around ______ I can get some medicine for my wounded hand?”

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

【易錯】容易誤選 B，認(rèn)為 around 是介詞，選 which 用以代替前面的名詞 hospital，在此用作介詞 around 的賓語。

【分析】最佳答案為C。以上語法分析并不算錯，但問題是，照此分析，此句的意思即為：有沒有這樣一個醫(yī)院，我在它的附近可以買藥治我的手傷？這樣的語境顯然有點(diǎn)不合情理，因?yàn)槿藗兺ǔＪ窃卺t(yī)院里面治傷，而不是在醫(yī)院附近治傷。此題選 C 的理由是：句中的 around 不是介詞，而是副詞，意為“在附近”；其后的 where 引導(dǎo)定語從句用以修飾其前的地點(diǎn)名詞 hospital，句意為：附近有沒有一家醫(yī)院，我可以去治我的手傷？

3. _____ is known to everybody, the moon travels round the earth once every month.

A. It B. As C. That D. What

【易錯】容易誤選 A，認(rèn)為此處應(yīng)填一個形式主語。

【分析】最佳答案是 B。as 引導(dǎo)的是一個非限制性定語從句。比較下面一題：

_______ is known to everybody that the moon travels round the earth once every month.

A. It B. As C. That D. What

此題答案選 A，it 為形式主語，真正的主語是后面的 that 從句。

再比較下面一組題，其中第(1)題選 B，第(2)題選 D：

(1) ______ is mentioned above, the number of the students in senior school is increasing.

A. Which B. As C. That D. It

(2) ______ is mentioned above that the number of the students in senior school is increasing.

A. Which B. As C. That D. It

4. David is such a good boy _______ all the teachers like.

A. that B. who C. as D. whom

【易錯】此題容易誤選A，許多同學(xué)一看到題干中的such，再聯(lián)系到選項(xiàng)中的 that，便認(rèn)為這是考查such … that …句式。況且，這樣理解意思也還通順。

【分析】最佳答案為C，不是A，因?yàn)樵趕uch … that … (如此……以至……)結(jié)構(gòu)中，that 引導(dǎo)的是結(jié)果狀語從句，并且 that 在從句中不充當(dāng)句子成分，若在上句填入 such … that …，句末的動詞 like 缺賓語。選C的理由如下：as 用作關(guān)系代詞，用以引導(dǎo)定語從句，修飾其前的名詞 boy，同時 as 在定語從句中用作動詞 like 的賓語，句意為“所有老師都喜歡的一位好男孩”。有的同學(xué)可能還會問，假若選A，能否將其后的 that 視為引導(dǎo)定語從句的關(guān)系代詞呢？不能，因?yàn)楫?dāng)先行詞受到 such 的修飾時，其后的定語從句應(yīng)用關(guān)系代詞 as 來引導(dǎo)，而不用that。比較下面一題，答案為A，因?yàn)?like 后有自己的賓語 him：

David is such a good boy _______ all the teachers like him.

A. that B. who C. as D. whom

5. The buses, most of _______ were already full, were surrounded by an angry crowd.

A. that B. it C. them D. which

【易錯】容易誤選 C，用 them 代指 the buses。

【分析】最佳答案是D。most of which were already full 為非限制性定語從句，修飾 the buses。