内容正文:
Unit 3 Language in use
语法链接
动词不定式(二)
1. 动词不定式作宾语补足语
作宾语补足语是动词不定式的一个重要用法。
(1)作动词ask, want, tell等的宾语补足语时,动词不定式符号to不可以省略。如:
He asked me to talk about English study.
他请我谈谈有关英语的学习。
(2)作使役动词let, have, make以及感官动词feel, hear, see, watch等的宾语补足语时,动词不定式符号to要省略。如:
The teacher made him say the word like this.
老师让他像这样说这个单词。
但它们变为被动语态时,不定式符号to不能省略。如:
①The boss made the workers work over ten hours a day in the past.
过去老板迫使工人们每天工作十多个小时。
→The workers were made to work over ten hours a day by the boss in the past.
过去工人们被老板逼迫每天工作十多个小时。
②I saw Li Lei fall down from his bike.
我看见李雷从自行车上摔了下来。
→Li Lei was seen to fall down from his bike.
李雷被看见从自行车上摔了下来。
(3)作动词help的宾语补足语时,动词不定式符号to可以带,也可以不带。如:
Could you help me (to) carry the heavy box?
你能帮我搬这个重箱子吗?
2. 动词不定式作目的状语
动词不定式及其短语具有副词的特性,可在句中作状语。这里主要就其作目的状语的用法作一下讲解。
(1)不定式和不定式短语作目的状语,主要用来修饰动词,表示某一动作或状态的目的。如:
①He stopped to have a good look.
为了好好看一下,他停了下来。
②Mum has come back ahead of time to give me a surprise.
为了给我一个惊喜,妈妈提前回来了。
(2)为了使目的更加清楚或表示强调意义时,还可以在前面加in order to