The boy wanted to ride his bicycle in the street,but his mother told him ______ .
A.not to B.not to do C.not do it D.do not to
此次答案A ，是什么语法点的考查？ 非谓语动词不定式的省略吗？
The boy wanted to ride his bicycle in the street,but his mother told him ______ .
A.not to B.not to do C.not do it D.do not to
此次答案A ，是什么语法点的考查？ 非谓语动词不定式的省略吗？
【答】这是关于不定式符号单独用的问题，或者说是关于用不定式符号代替整个不定式的问题。
在章振邦教授主编的《新编高级英语语法》P.201 对此使用方法作了比较详细的说明：
为了防止重复，可以省略不定式符号之后的动词原形及其补足成分。这种不定式符号的单独用容易见到于非正式语体。比如：
George says he is going to leave Shanghai, but I dont think he really wants to.
We should like Jane to get a good degree, but we dont really ecpect her to.
You may go if you wish to.
He always speaks faster than he needs to.
A number of veterans retired, and some were ready to.
假如不定式符号之后的动词原形是 be 和 have，在省略句中一般要保留 be 和 have，但随后的成分仍可省略。比如：
A: Arent you the manager? B:No, and I dont want to be.
A: He hasnt finished yet. B: Well, he ought to have.
有时不定式符号和随后的动词及其补足成分可以一块省略。比如：
Id like to do it now,but I havent got the time .
You will make it if you try .
