外研版（2019）选择性必修第三册Unit 1 Face values Using language 语法主语从句课件(共15张PPT)

(共15张PPT)
Subject Clauses
主语从句
Underline the subject(主语)
1. Jane is good at playing the piano.
2. She went out in a hurry.
3. To see is to believe.
4. Smoking is bad for health.
5. What he has said is true.
结论：（1）主语是句子说明的人或事物，一般放在____________。
（2）在句子中充当____________的从句就是主语从句。
（名词）
（代词）
（不定式）
（动名词）
（从句）
句首
主语
That he will pass the exam is certain.
Whether he will pass the exam is uncertain.
It is still uncertain whether/if he will pass the exam.
conclusion
_______不做成分，无意义，不可省略。
whether 不做成分，译为“_______”，不可省略,
在句_______时，不能用if代替；在句______时，可以用if代替。
that
是否
1. Conjunctions 连接词
首
中
功能 连接词
不做成分 that whether if
Who will go makes no difference.
Whom you invited isn’t important.
Whoever breaks the law will be punished.
What we need is more time.
Whatever was said here must be kept secret.
Which book I shall choose hasn’t been decided.
Whose handwriting this is hasn’t been identified.
Whichever of you gets there first will get the prize.
1. Conjunctions 连接词
主语：谁
宾语：谁
主语：无论谁
宾语：什么东西
主语：无论什么东西
定语：哪一
定语：谁的
定语：哪一
功能 连接词
作主语、宾语（表语） who what whom whoever whatever
作定语 which whose whichever
1. Conjunctions 连接词
When we will leave hasn’t been decided.
Where the meeting will be held is unknown.
Why he cries is not clear.
How she keeps healthy is a secret.
Wherever the lost child went is still a puzzle.
Whenever he bought the car is still unknown.
However she got that job remained a mystery.
状语：何时
状语：何地
状语：为何
状语：怎样
强调：到底、究竟
功能 连接词
不做成分 that whether if
作主语、宾语（表语） who what whom whoever whatever
作定语 which whose whichever
作状语 when where why how
Whoever breaks the law, he will be punished.
Whoever breaks the law will be punished.
However hard I work, there is always more to do.
Whomever you meet in the office, you should keep smiling.
Whichever team gains the most points, it doesn’t matter to me.
让步状语从句
no matter+疑问词=疑问词+ever
What she said has left us much to think about.
When and where the conference will be held has not been decided yet.
When they will set off for London and where they will stay have not been decided yet.
What I want is the book.
What I want are some books.
单个主语从句做主语，谓语动词用单数。
两个及以上连接词引导一个主语从句做主语时，谓语动词用单数。
两个及以上主语从句做主语时，谓语动词用复数。
主句为主系表结构时，谓语动词看表语单复数。
2. Agreement 主谓一致
That he is an English is obvious.
It is obvious that he is an English.
it+be+形容词+主语从句
It is important that one master the skills of operating computers.
It is necessary that she let them know when she’ll be available.
在 it is+adj+that从句中，谓语动词常用“should+动词原形”，其中should可以省略。
important/necessary/essential(必需的)/vital(至关重要的)/desirable(可取的)/advisable(明智的)...
3. It形式主语
That he is good at English is known to us all.
It is known to us all that he is good at English.
it+be+过去分词+主语从句
said/believed/reported/estimated/acknowledged/decided...
It is suggested that we should do more exercise.
It is suggested that the meeting be put off till next week.
在 it is+过去分词+that从句中，谓语动词常用“should+动词原形”，其中should可以省略。
suggested/advised/required/requested/ordered/insisted...
3. It形式主语
That we can’t go to see the movie is a pity.
It is a pity that we can’t go to see the movie.
it+be+名词（词组）+主语从句
a pity/shame/fact/an honor/no wonder/good news/no use/no surprise
3. It形式主语
it+特定动词+主语从句
It seems that many people don’t cook fish at home.
It appears that he has a taste for music.
It happened that I had been away when he called.
It suddenly occured to him that he had left his keys in the office.
It struck me that I was wasting my time.
It hit him that the shops would be closed.
It doesn’t matter whether it will rain or not.
It makes no difference to me whether it rains or not.
似乎、好像
碰巧
使某人突然想起
无所谓、不重要
3. It形式主语
it+特定动词+主语从句
It seems that many people don’t cook fish at home.
It appears that he has a taste for music.
It happened that I had been away when he called.
It suddenly occured to him that he had left his keys in the office.
It struck me that I was wasting my time.
It hit him that the shops would be closed.
It doesn’t matter if it will rain.
It makes no difference to me if it rains.
似乎、好像
碰巧
使某人突然想起
无所谓、不重要
3. It形式主语
Where he comes from are a mystery.
is
That is obvious that he didn't pass the exam.
It
If she will come or not is still a question.
Whether
What will be our monitor has not been decided.
Who
______ they are most interested in is how they can produce more and better cars.
A. That B. Who C. What D. When
________ the boy didn't take medicine made his mother angry.
A. That B. What C. How D. Which
That we go swimming every day ________ us a lot of good.
A. do B. doing C. does D. done
_______ they can solve the question is still unknown.
A. If B. Which C. Whether D. What
众所周知，雨天要穿雨鞋。
________________we wear rain shoes on rainy days.
It is known that
______________is rest.
我需要的就是休息。
What I need
__________________Yao Ming got the highest points in the match.
据报道，姚明在这场比赛中得了最高分。
It is reported that