中考英语专题复习课件--从属连词（26PPT）

课件26张PPT。从属连词 从属连词的用法 1. 引导宾语从句的从属连词
⑴ that引导宾语从句
e.g. I think that he likes football. 连词that引导宾语从句时，that在句子中不作任何成分，在口语或非正式文 体中常省略。
e.g. He said (that) Jack was good at swimming.
Mike said (that) he was feeling ill.⑵ if, whether表示“是否”时，两个词都能引导宾语从句。
eg：I don’ t know if/whether Tim come.
I wonder if/whether I can borrow your car?
if 和whether引导宾语从句时，一般情况下可以互换。If一般在口语中用的比较多，whether在书面语和正式场合下用的比较多。
引导宾语从句，以下情况下只用whether不用if。
① 与动词不定式连用时
e.g.I don’t know whether to go.
② 在介词后面作宾语时
e.g. I’m worried about whether she can come here on time.
③ 与or not 连用时
e.g. I don’t know whether to have a party or not.
I asked my father whether or not I should buy a bike.
④宾语从句前置时
e.g.Whether this is true, I can’t say.
I can’t say whether/if this is true
⑤ 用if会引起歧义时?if 如果 if 是否
e.g. Please?let?me?know?whether you?like?it.
⑥ 在discuss后
e.g. We’ re discussing whether we’ll hold a sports meeting.
We discussed whether we should close the shop. 2. 引导状语从句的从属连词
(1)引导时间状语从句的从属连词主要有：
when, while, as, before, after, until/till, since, as soon as等。
① when, while 当...的时候
e.g. He was doing his homework when I came in.
I came in when/while he was doing his homework.
As/When/While he was doing his homework, I came in.
② before"在...之前"；after "在...之后“
e.g. I'll stay here before my mother comes back.
After you think it over, please let me know your decision.
③ until "直到....."
e.g. I knew nothing about it until he told me.
④ since "自从....以来"
e.g. It's five years since I studied English.
I have lived in Beijing since I came to China.
⑤ as soon as "一....就....“
e.g. I‘ll call you as soon as I get there. 主将从现
(2)引导原因状语从句的从属连词有：as, because, since等。
e.g. He didn't go to school because he was ill.
Since every body is here, let‘s begin. 既然，鉴于
We'd better hurry as it is getting late.

(3) 引导地点状语从句的从属连词有：where, wherever等。
e.g. Wherever she may be, she will be happy.
Go back where you came from.
Go back to the village where you came from.

(4) 引导条件状语从句的从属连词：if, unless（除非）, as long as只要等。
e.g. He will not come unless he is invited.
You'll be late for the class if you don't hurry.
As long as you’re happy, it doesn’t matter what you do.
(5) 引导目的状语从句的从属连词：so that, in order that
e.g. He gets up early every morning so that he can catch
the first bus.
I came here in order that I might take a good look at
the new bridge.
(6) 引导结果状语从句的从属连词：so....that, such....that等。
如此…以致于…
e.g. I worked so hard that I got the first place.
I worked such hard that I got first place.
He shut the window with such force that the glass broke.
(7) 引导让步状语从句的从属连词：
though/ although, even if/even though等。
e.g. Even if you were here yesterday, you couldn’t help him.

Though he is old, he still works hard.

↗ a/an +adj. + 名词= so+ adj. +a/an +名词
⑴ such +that从句
↘ adj. +不可数名词/可数复数
eg：He is such a clever boy that we all like him.
such a clever boy=so clever a boy
⑵ so修饰形容词或副词
so +adj./adv. +that从句
eg： He is so clever a boy that we all like him.
⑶ 当复数名词前有many, much, few, little等表示数量多少的形容词时用such.
eg：He is such a little boy that he can't read or write.



both?1.代词：意为“两者都”, 谓语动词用复数。
eg：Both?of?us?are?from?America.
=We?are?both?Americans.?
2.形容词：修饰名词时，名词使用复数。
eg ：Both his eyes were seriously burned. ?
3.连词：与and?连用，意为“两者都”连接主语时谓语动词用复数。
eg: Both?my?brother?and?I?are?football?players.?



either 1.代词:意为“两者中的任何一个”,谓语动词用单数。
eg: Either of the girls is very beautiful.
2.形容词: 修饰名词时，名词使用单数。
eg: Either girl is very beautiful.
3.连词: 与or连用：either…or…意为“不是...就是...，要么...要么...，或者...或者”连接两个并列的句子成分（连接主语时，谓语动词就近原则）
eg: Either you or I am wrong.


neither 1.代词: 意为“两者中任何一方都不”both的反义词，作主语时谓语动词用单数。
eg: Neither of the books is mine.
2.形容词: 修饰名词时，名词使用单数。
eg: Neither boy can swim.
3.连词: 与nor连用：neither…nor… 意为“既不…也不…”连接两个并列的句子成分（连接主语时，谓语动词就近选择）
eg: Neither I nor he is a teacher.


though 和although 虽然….但是….
①although和though同义，在一般情况下，可以互换使用。 but
eg：Though/Although my car is very old, I don't want to buy a new one.
= My car is very old, but I don't want to buy a new one.
②even能和though组合表示强调，但even不能和although组合。
eg：Even though we could afford it, we wouldn't go abroad for our vocation.
③当让步状语从句指某种假设情况时，通常用though,而不用although。
eg：Though all the world were against me, I should still hold to my opinion.
④though可以独立用作副词，常放在句末。
eg：She didn't tell me what she had done, but I know it though.
Exercise1. Peter will cook for her parents ___ the International Day of Families come.
A. unless B. when C. until D. though
2. My father like reading a newspaper ___ he is having breakfast.
A. until B. while C. because D. thoughExercise
3. Friends should help each other ____ they are in trouble.
A. before B. when C. but D. and
4. My mom took me to the park ____ she washed the clothes.
A. after B. now C.what D. which Exercise
5. ---What shall we do now ?
---____ it's raining hard, let's stay at home.
A. So B. Since C. Though D.If
6. _______ they are twin brothers, they don’t look like each other.
A. Though B. Since C. However D. When
Exercise
7. In summer, food goes bad easily ______ it is put in the refrigerator.
A. until B. if C. unless
8. ---Would you please give this book to Mary ?
---Sure, I'll give it to her ___ she comes back.
A. before B. as soon as C. till Exercise
9. The little boy is ________ young _______ he can’t go to school.
A. enough; to B. too; to C. so; that D. such; that
10.My uncle has been taught in this school _______ he was twenty years old.
A. since B. for C. until D. after
Exercise
11. ___ you go, a minute is 60 seconds, an hour is 60 minutes, and a day is 24 hours.
A. wherever B. where C. whenever D. when

12. After climbing the hill, I was ____ tried ____ I could hardly walk.
A. so; that B. such; that
C. as; as D. not so; as