内容正文:
Section Ⅳ Using language
表语从句
语法串烧
我的发现
Our monitor's suggestion is that① we should set aside 15 minutes every day to read newspapers. This is where② I agree with him.The only question is how③ we should choose the proper newspapers. It seems as if④ there are numerous kinds of newspapers and each one is useful for us to get more information about the world outside. Our monitor insists that the first thing to consider is whether⑤ it is beneficial to our study, which is what⑥ we all approve of.
①that引导表语从句,that在从句中不作句子成分,只起连接作用;
②where引导表语从句,where在从句中作状语;
③how为连接副词,引导表语从句,how在从句中作状语;
④as if引导表语从句;
⑤whether引导表语从句,在从句中不作句子成分,意为“是否”;
⑥what引导表语从句,what在从句中作宾语。
一、概述
在复合句中充当表语的从句叫表语从句。表语从句一般用在“主语+系动词+表语”的结构里,它最明显的特征是跟在连系动词be 之后。
二、表语从句的连接词及其句法功能
1.that引导的表语从句
that引导表语从句时只起连接作用,在句子中不作任何成分,也无任何意义,通常不能省略。
The fact is that he is old enough to go to school.
事实是他已经到了上学的年龄。
My advice is that your homework(should)be finished on time every day.
我的建议是你每天要按时完成作业。
【名师点津】 当主句的主语为advice,suggestion,proposal, recommendation,order, command, request, requirement等表示“建议、命令、要求”的名词时,表语从句的谓语动词要用“should+动词原形”结构表示虚拟语气,其中should可以省略。
2.whether引导的表语从句
whether 意为“是否”,引导表语从句时只起连接作用,在句子中不作任何成分。
His first question was whether Mr Smith had arrived yet.
他的第一个问题是史密斯先生到了没有。
The question is whether he has passed the test.
问题是他是否通过了测试。
【名师点津】 whether引导表语从句时一般不能用if替代。
学生用书↓第51页
[巧学活用1]——单句语法填空/完成句子
①The question remains whether they will be able to help us.
②My suggestion is that we should tell him.
③What he wants to know is whether we can finish our work by tomorrow morning.
④我的建议是你应该尽可能经常地练习说英语。
My advice is that you (should) practise speaking English as often as possible.
3.连接代词引导的表语从句
连接代词包括what,who,which,whom, whose, whatever, whoever, whomever,whichever等,在句中作主语、宾语、表语或定语。
The question is what caused the accident.
问题是是什么造成了这次事故。
My trouble is who (whom) I can turn to.
我的麻烦是我能向谁求助。
My question is whose turn it is to be on duty today.我的问题是今天轮到谁值日了。
【名师点津】 what引导表语从句时在从句中作主语、宾语、表语或定语,相当于定语从句中的“先行词+关系代词”的形式,表示“……的事情(内容、地点、样子等)”。
What he told you was what (= the thing that) had been discussed at the meeting.
他告诉你的就是在会上讨论的内容。
This is what ( = the place that) was once called the paradise.
这就是过去曾经被叫作乐园的地方。
[巧学活用2]——单句语法填空
①What worries us most is who let out of the secret.
②Energy is what makes things work.
③This is what my father has taught me-to always face difficulties and hope for the best.
④His puzzle is which dictionary is of greater help to English beginners.
⑤The question is whose suggestions are more practical in a dilemma.
4.连接副词引导的表语从句
连接副词包括when,where, how, why, whenever, wherever等,在表语从句中作状语。
The question is when he can arrive at the hotel.
问题是他什么时候可以到达酒店。
That is why you see this old woman before you,Jeanne.
珍妮,这就是现在这位老妇人出现在你面前的原因。
[巧学活用3]——单句语法填空
①Grandma pointed to the hospital and said,“That's where I was born.”
②They never get angry and are always kind to the students.That's why the children can always get on well with their robot teachers.
③What puzzles me is how you could tell he was a thief when you first saw him.
④The last time we had great fun was when we were visiting the Water Park.
5.as if/though 引导的表语从句
as if/though引导的表语从句常置于系动词look, seem,sound,appear等后面。
It looks as if/though it is going to rain.
天看起来要下雨了。
It sounds as if/though someone is knocking on the door.
听起来好像有人敲门。
学生用书↓第52页
【名师点津】 as if/though引导的表语从句如果描述的是事实,从句谓语动词用陈述语气;如果与事实不符,就用虚拟语气(表示与现在事实相反时,从句动词用一般过去时,be动词用were;表示与过去事实相反时,从句动词用过去完成时;表示与将来事实相反时,从句动词用would/could/might +动词原形)。
6.because引导的表语从句
because引导的表语从句通常只用于“This/ That/It is because...”结构中。
My anger is because you haven't called me for a long time.
我生气是因为你好长时间没给我打电话了。
【名师点津】 1.This/That/It is because...强调原因;
This/That/It is why... 强调结果。
He was sent to the hospital.That's because he was ill.
他被送往了医院,是因为他生病了。
He was ill.That's why he was sent to the hospital.他生病了,所以被送往了医院。
2.reason作主语时,表语从句只能用that引导,而不能用because。
The reason why he was late was that he missed the early bus.
他迟到的原因是他没赶上早班公交车。
[巧学活用4]——单句语法填空/完成句子
①From space, the earth looks blue.This is because about seventy-one percent of its surface is covered by water.
②看起来他好像喝醉了。
It looks as if/though he were drunk.
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