宾语从句的用法
【概念引入】
1.宾语从句名言：
（1) that引导的宾语从句
Sometimes we need to remind ourselvesthat thankfulness is indeed a virtue.
有时我们需要提醒自己，感激是真正的美德。
Health is the thing that makes you feelthat now is the best time of the year.
健康使你感到现在是一年中最好的时光。
（2）what引导的宾语从句
If you can’t have the best, make the best ofwhat you have.
没有最好的，就充分利用现有的。
If you don’t havewhat you like，you must likewhat you have.
没有你喜欢的东西，就喜欢你现有的东西。
2.宾语从句定义：
在主从复合句子中，充当宾语，位于及物动词、介词或复合谓语之后的从句称为宾语从句。 宾语可分为三类：动词的宾语从句、介词的宾语从句、形容词的宾语从句。
【用法讲解】
1.宾语从句的引导词
在复合句子中，作宾语的从句叫宾语从句。例如：
I want to know whose book this is.
我想知道这是谁的书。
宾语从句的引导词有三种：
1）that；2）whether/ if；3）特殊疑问词what/ when/ where/ who等。例如：
He saidthathe could help me. 他说他能够帮助我。
Your mother askedifyou could finish your work this week.
你妈妈问这个星期你能否完成工作。
Can you tell mewhenthe sports meeting will begin？
你能告诉我运动会将在什么时候开始吗？
(1) 以that引导的宾语从句：
that引导的宾语从句一般都是由陈述句充当，引导词that没有实际意义，不在从句中作任何成分，that可以省略，而且从句成分齐全，句意完整。
Do you think (that) it will rain? 你认为天会下雨吗？
He said (that) he could come on time. 他说他会准时来的。
(2) 以whether或if引导的宾语从句：
从属连词if, whether引导的名词从句是由一般疑问句或选择疑问句转化而来的，变成从句后，语序由原来的倒装语序变成陈述语序。whether和if意为“是否”。
Let us know whether / if you can finish the work before Friday.
请让我们知道你是否能在星期五以前把工作做完。
I don’t care whether you like the story or not.
我不在乎你是否喜欢这个故事。
注意：
以下情况一般只用whether不用if。
1) 接带to的动词不定式。
She doesn’t know whether to go to the zoo.
她不知道是不是去动物园。
2)与or not连用时。
I’m not sure whether or not he will come on time.
他能否准时来，我说不准。
(3) 特殊疑问词what/ when/ where/ who等引导的宾语从句：
此类宾语从句原来是特殊疑问句，变成宾语从句后要用陈述语序，由wh-开头的疑问词引导。包括who, whom, whose, what, which等连接代词和where, when, how, why等连接副词，这些引导词有各自的意思，在从句中要作相应的成分，不能省略。例如：
Could you tell me which gate we have to go to?
请问我们得走哪个门？
He didn’t tell me how long he would stay here.
他没有告诉我他要在这里呆多长时间。
2.宾语从句的语序
由whether/ if和特殊疑问词引导的宾语从句要用陈述语序，原来的倒装语序改成陈述语序时注意相应的助动词和动词的变化等。
Where does your father work? Can you tell us? →
Can you tell us where your father works?
你能告诉我们你爸爸在哪里工作吗？
Did you get home very late? He asked me. →
He asked me if I got home very late. 他问我是否到家很晚。
3.宾语从句的时态对应
(1) 如果主句是一般现在时，宾语从句根据实际情况用各种时态。
例如：
My teacher says he will be back in a week. （一般将来时）
我的老师说他将在一个星期后回来。
My teacher says he is watching TV. （现在进行时）
我的老师说他正在看电视。
My teacher says he has seen the movie. （现在完成时）
我的老师说他已经看过这部电影了。
(2）如果主句是一般过去时，宾语从句用相应的过去时态。
例如：
My father said he was watching TV at that time.（过去进行时）
我爸爸说在那个时候他在看电视。
My father said the he had already seen the movie. （过去完成时）
我爸爸说他已经看过那部电影了。
注意：如果宾语从句是表示客观真理和规律的句子时，用一般现在时。
例如：
Our teacher told us the sun is much bigger than the earth. （一般现在时）
我们的老师告诉我们太阳比地球大多了。
4.宾语从句的否定转移
主句如果是I think/ believe/ imagine/ suppose/ guess/ expect等，从句的否定一般要转移到主句中，其反意疑问句与从句一致。例如：
I don’t think they’ll wait to the last minute，will they？
我认为他们不会等到最后一分钟，他们会吗？
I don’t believe he did this, did he?
我相信他不会做这样的事，他会吗？
介词+关系词怎么用？介词加关系词分别等于什么？
答：一、“介词＋关系代词”的用法
当关系代词在定语从句中作介词宾语时，我们通常用“介词＋关系代词”引导定语从句。如果指“人”，用“介词＋whom”；如果指“物”，用“介词＋which”。例如：
Do you know the lady with whom our manager is talking in the office?
Where is the supermarket in which you bought the laptop last week?
●使用“介词＋关系代词”要注意以下几点：
(一)选用介词的依据：
(1) 根据定语从句中谓语动词的搭配习惯(即固定短语)。例如：
Yesterday we visited the West Lake for which Hangzhou is famous.
(2) 根据先行词的搭配习惯(约定俗成，不一定是短语)。例如：
The old woman with whom you talked just now is a famous artist.
(3) 根据句子的意思来选择。例如：
The naughty boy made a hole in the wall through which he could see what is happening outside.
(4) 表示“所有”关系或“整体中的一部分”时，通常用介词of。例如：
I have about 20 books, half of which were written by Bing Xin, the famous writer.
(二)在定语从句中，含介词的短语动词不可拆开使用(短语拆开后含义发生变化)，如look after, look for等。例如：
The babies whom the nurses are looking after are very healthy.(正)
The babies after whom the nurses are looking are very healthy.(误)
(三)“of which / whom”有时可以用“whose＋名词”结构来改写。例如：
The building whose roof was damaged in the earthquake has been repaired.
＝The building of which the roof was damaged in the earthquake has been repaired.
(四)当先行词为way并且定语从句中缺少状语时，通常用in which或that引导定语从句(in which或that可省略)；如果定语从句中不缺少状语，则用关系代词引导(that 或which 可省略)。例如：
All of us disliked the way(in which / that)Tom settled the maths problem.
I don’t understand the way(that/which)the teacher explained to me.
(五)in that不可以引导定语从句，但可以引导原因状语从句。例如：
She didn’t attend the meeting in that / because she was seriously ill.
二、“介词＋关系代词”与关系副词的转化
(1)当先行词表示地点，定语从句中缺少地点状语时，通常用关系副词where引导，此时也可选用表示地点的介词＋which来代替关系副词where。例如：
I visited the village where many children couldn’t go to school because of poverty.
＝I visited the village in which many children couldn’t go to school because of poverty.
(2) 当先行词表示时间，定语从句中缺少时间状语时，通常用关系副词when引导，此时也可选用表示时间的介词＋which来代替关系副词when。例如：
We’d better fix a date when we will practice speaking English next week.
＝We’d better fix a date on which we will practice speaking English next week.
(3) 当先行词为reason，定语从句中缺少表示原因状语时，通常用关系副词why引导，此时也可以用for which来代替关系副词why。例如：
Can you tell me the reason why you were late for school?
＝Can you tell me the reason for which you were late for school?
