概要： (5)部分短语动词后,常接不定式作宾补,如: You may depend on them to be there early. The Party calls on us to increase production and practise economy. 常这样用的短语动词有:ask for, care for, call on, count on, depend on, wait for, long for(渴望),prepare for, wish for等。 ⒉作主语补足语 不定式作主语补足语,和主语构成一种逻辑上的主谓关系。如: ①He was not allowed to enter the classroom for being late. ②The young university student is considered to have great promise. 六、不定式作状语 ⒈作目的状语 (1) ①I stayed ther
八年级英语上学期Unit 11语法解析,标签：八年级上册英语教案,人教八年级英语教案,http://www.67jx.com(5)部分短语动词后,常接不定式作宾补,如:
You may depend on them to be there early.
The Party calls on us to increase production and practise economy.
常这样用的短语动词有:ask for, care for, call on, count on, depend on, wait for, long for(渴望),prepare for, wish for等。
⒉作主语补足语
不定式作主语补足语,和主语构成一种逻辑上的主谓关系。如:
①He was not allowed to enter the classroom for being late.
②The young university student is considered to have great promise.
六、不定式作状语
⒈作目的状语
(1) ①I stayed there to see what would happen.
②Henry has decided to go to the hospital to be examined by the doctor.
(2)有时为了强调,不定式前可加in order或so as。如:
Bob took down my telephone number so as(in order)not to forget it.
有时为强调目的状语可把in order to或不定式置于句首,但so as to不能这样用。在这种句式中不定式部 分可转换为so that, in order that,成为目的状语从句,如:
I stayed there so that (in order that)I could see what would happen.
(3)在部分表示感情色彩的形容词、过去分词或动词之后可接不定式,如:astonished, glad, happy, laugh ,pleased, sad, smile, sorry surprised等。
①We are glad to hear the news.
②I was surprised to see that a three-year-old baby could write so well.
在部分形容词后接不定式,用主动形式表示被动意义,这种句型中的主语是不定式的逻辑宾语。如:
The question raised by the students The room is really comfortable to live in.
常这样用的形容词有:comfortable, easy, dangerous, difficult, expensive, fit, impossible等。
⒉作结果状语
We came home after our holiday to find our garden neat and tidy.
不定式作结果状语还常用在下列句式中。如:
①so…as to; such…as to
I'm not so stupid(a fool) as to put it in writing.我不至于愚蠢到会把它写下来。
I'm not such a stupid fool as to put it in writing.
②enough…to
The speed is high enough for us to catch up with the first liner.
③only to
Jane hurried back only to find her mother dying in the hospital.
④too…to
I'm too tired to stay up longer.
但在下列结构中,too…to并非是"太……而不能……"之意。如:
①I'm only too glad to have passed the exam.考试及格我太高兴了。(too修饰glad to have…,相当 于very)
②We have too much to learn.我们要学的太多了(不定式作定语)。
⒊不定式短语还可作独立成分,用于句首、句中或句末。如:
To tell the truth, the play was a great disappointment tome.
常见的短语有to be exact(确切地说),to begin with(首先),to do him justice(说句对他公道的 话),to be sure(真的)等等。
七、动词不定式、动名词的其它用法
⒈疑问词+不定式结构
疑问词who, what, which, when, where, whether, how后可接不定式构成不定式短语,在句中作主语、宾语、表 语等。如:
①When to leave for London has not been decided yet.
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