2) 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
答案:A。not to 为not to do it 的省略形式。可以只用to这个词,而不必重复整个不定式词组。及物动词do后应有宾语,因此也B,D不对。
7.11 不定式的特殊句型tooto
1)tooto 太以至于。例如:
He is too excited to speak. 他太激动了,说不出话来。
---- Can I help you ? 需要我帮忙吗?
---- Well, Im afraid the box is too heavy for you to carry it, but thank you all the same.
不用了。这箱子太重,恐怕你搬不动。谢谢。
2) 如在too前有否定词,则整个句子用否定词表达肯定,too 后那个词表达一种委婉含义,意 为不太。例如:
Its never too late to mend. 改过不嫌晚。(谚语)
3) 当too 前面有only, all, but时,意思是:非常 等于very。例如:
Im only too pleased to be able to help you. 能帮助你我非常高兴。
He was but too eager to get home. 他非常想回家。
7.12 不定式的特殊句型so as to
1) 表示目的;它的否定式是so as not to do。例如:
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