三“讓”:have, let, make;
二“聽”:hear, listen to;
一“感覺”:feel;
一“注意”:notice。如:
This picture makes me feel excited!
這幅畫使我感覺很興奮。
We saw Liu Yu play baseball last week.
上周我們看到劉宇打棒球了。
(3)help后接動詞不定式作補語,to可帶可不帶。
They can help you (to) learn English.
他們幫助你學習英語。
6. 用作狀語
(1)目的狀語,置于句首或句末,置于句首時常表示強調。如:
In order to catch the early bus, she got up very early.
為了趕上早班車,她起得很早。
A group of young people got together to discuss this question.
一組年輕人聚在一起討論這個問題。
She came to this city to visit her daughter.
她來到這個城市看望她的女兒。
(2)原因狀語,多見于“sb.+be+adj.+to do...”結構句中。如:
I feel very lucky to have him.
擁有他我感覺很幸運。
(3)結果狀語,多見于“too...to”,“enough to...”結構句中。如:
I’m too tired to do it well.
我太累了以至于做不好這件事。
The room is big enough for three people to live in.
這個房間三個人住足夠大。
7. 動詞不定式的復合結構
動詞不定式的復合結構是“for / of sb. to do sth.”。不定式復合結構的介詞用for還是of,主要取決于前面形容詞的性質。一般說來,of前面的形容詞是careful, clever, foolish, good, kind, nice, wise等,說明人的特性;for前面的形容詞是dangerous, difficult, easy, hard, heavy, important, interesting, necessary等,一般說明不定式動作的特性,前面如果是名詞用for。如:
It’s a good idea for parents to allow children to study in groups during the evening.
對父母來說,在晚上讓孩子分組學習是個好主意。
It’s wise of him to do it well.
對他來說,把這件事做好很明智。