Question

1.Mrs Smith warned her daughter ________ after

drinking.
A. never to drive B.to never drive
C.never driving D.never drive
2. The chair looks rather hard, but in fact, it is very comfortable to _______ .
A. sit B.sit on C. be sat D. be sat on
3. Tom kept quiet about the accident _______ lose his job.
A.so not as to B.so as not to
C.so as to not D.not so as to

Answer 1

1.Mrs Smith warned her daughter ________ after drinking.

A. never to drive B.to never drive C.never driving D.never drive
答案是A. never to drive
本题考查不定式做宾语补足语，warn sb to do“警告某人做某事”，
句意是：斯密斯太太警告她的女儿不要酒后驾驶。
2. The chair looks rather hard, but in fact, it is very comfortable to _______ .
A. sit B.sit on C. be sat D. be sat on
答案选 B.sit on
本题考查非谓语动词的用法。英语中，有些动词是主动的形式表被动的含义，当指物质的特性时主动表被动。这里是指的是椅子的特性，故用主动表被动。另外，坐在椅子上，sit是不及物动词，后面加介词on与the chair做宾语。所以on不可省略，故选B。
考查非谓语动词的用法。
句意为：这把椅子看起来相当硬，但事实上坐在上面是非常舒适的。
3. Tom kept quiet about the accident _______ lose his job.
A.so not as to B.so as not to C.so as to not D.not so as to
答案选 B.so as not to
本题考查固定搭配。So as to和in order to都可以表示目的，但是so as to不能放在句首；两者的否定式都是在不定式前面加not。故B正确。
句意为：为了不失去这份工作，汤姆对于这个事故保持了沉默。

Answer 2

1，A 2，B 3，B

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