内容正文:
必修三 Unit 2
Discovering Useful Structures动词 ing 形式作宾补和状语
一、动词-ing形式作宾语补足语
动词-ing形式作宾语补足语时,与宾语之间构成主谓关系,即宾语是其逻辑上的主语。
用法:
--ing形式作宾语补足语的几种情况:
1. 表示感觉和心理状态的动词(短语)(常见的有feel,hear,listen to,see, notice, observe,watch, look at, find,think等)+sb.+doing sth.(作宾补)。
Eg:I felt somebody standing behind me.
Eg:I saw the little boy crying there.
2. 表示“致,使,让”意义的使役动词(常见的有have , keep, get, leave,set ,catch等)+sb./sth.+doing sth.(作宾补)。注意let、make后不接ing作宾补
Eg:We kept the fire burning all night long.
3. with复合结构中,with+名词/代词+doing(作宾补)。
Eg:With so many people looking at her, she felt nervous.
[名师点津] 使役动词接现在分词作宾语补足语表示“让……一直做某事”;接不带to的不定式作宾语补足语表示“让某人做某事”;接过去分词作宾语补足语,表示“主语请某人做某事,使完成某事或主语遭遇某事”。
二、动词-ing形式作状语
动词-ing形式作状语,其逻辑主语必须与句子主语一致,可表示时间、原因、条件、让步、结果、方式或伴随等。
1. 作时间状语,一般可转换成由when或while等引导的时间状语从句。
Walking in the park, she saw an old friend.
=When/While (she was) walking in the park, she saw an old friend.
2. 作原因状语,一般可转换成由as或because等引导的原因状语从句。
Being ill, he couldn't go to school.
=As he was ill, he couldn't go to school.
3. 作条件状语,一般可转换成if, unless等引导的条件状语从句。
Working hard, you'll make great progress.
=If you work hard, you'll make great progress.
4. 作让步状语,一般可转换成though,although等引导的让步状语从句
Being tired, they still went on working.
=Although they were tired, they still went on working.\
5. 作结果状语
His father died, leaving him a lot of money.
6. 作方式状语
Please answer my question using another way.
7. 作伴随状语,可以转换为一个and并列句
Mary sat by the window of the classroom, reading a book.
=Mary sat by the window of the classroom and was reading a book.
注意:动词-ing形式作结果状语时,通常放在句末,中间用逗号隔开,表示一种顺其自然、意料之中的结果。only后接不定式在句中作结果状语,表示意料之外的结果。
eg:I hurried to school, only to find it was Sunday.
注意: 1.为强调动词-ing形式表达的意义,可在其前加上各种连词。例如,加上when, while,before, after,(al)though等连词。
2.动词-ing形式作结果状语,表示随着谓语动词的发生而产生的自然结果,前面有时候可以加thus。而不定式作结果状语时常表示出乎意料的结果,有时前面可以加only。
三、动词-ing形式作状语的注意事项
(一)动词-ing形式的时态
动词-ing形式作状语时,一般式(doing),完成式(having done)。
(1)动作与谓语动词的动作同时发生时,用一般式。
(2)动作先于谓语动词的动作而发生时,用完成式。
①Walking in the street, I met some foreigners.
②