内容正文:
U6语法--宾语从句
宾语从句
一、概念
在复合句中用作宾语的从句叫宾语从句。宾语从句是一种名词性从句,在句中作及物动词的宾语,或介词的宾语,或形容词的宾语。
找出下列句子的宾语:
(1)I love you.
(2)My mother looks after me.
(3)I think that my English teacher is beautiful.
二、用法:学习宾语从句要抓住三要素:连接词、语序和时态。
(一)连接词 根据引导宾语从句的不同连词,宾语从句可分为三类。
(1) 由that引导的宾语从句。that只有语法作用,没有实在的意义,在口语和非正式文体中可以省略。
He said (that) he wanted to stay at home.
She doesn’t know (that) she is seriously ill.
I am sure (that) he will succeed.
(2) 由if或whether引导的宾语从句。if和whether在句中的意思是“是否”。
I want to know if (whether) he lives there.
He asked me whether (if) I could help him.
注意:if 和whether的区别
1)、由 连词if、 whether 引导的表示“是否…”的宾语从句。whether, if 在从句中不做句子的成分,一般情况下,whether和if 可以替换。
例:I don’t know if/whether he will come tomorrow.
2)、下面几种情况只能用whether
①和不定式连(whether to do sth.)用作宾语时不用if引导.
例:Whether to go there hasn’t been decided.
They asked me whether to go shopping.
②宾语从句中有or not时不用if引导.
例:I don’t know whether the star will come or not.
③在介词后面的宾语从句中不用if引导
例:I’m thinking of whether we should go fishing.
练习:
1. I asked her _____________ she had a bike.
2. We’re worried about __________ he is safe.
3. I wonder ______________ he is well.
4. I don’t know ___________ or not he is well.
5. I don’t know __________ to go.
(3). 由连接代词who, whom, whose, what, which和连接副词when, where, why, how引导的宾语从句。
He asked whose handwriting was the best. __________________________________________
Can you tell me where the No.3 bus stop is? _________________________________________
I don’t know why the train is late. _________________________________________________
选择合适的连接词:
1. Li Ming told me _______ he didn't go hiking yesterday afternoon.(how, why)
2. Can you tell me ________ else is going to be on duty today?(who, whom)
3. He always thinks ______ he can do better.(how, who)
(二)语序—陈述语序
无论主句是陈述句还是疑问句,宾语从句