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初三各单元重点语法

发布时间:2014-01-29 15:51:35  

初三各单元重点语法

Unit 1 (by表示通过、利用什么方式、途径) 话题作文:学习方式介绍

-How do you study for a test?

-I study

? have some trouble/problems/difficulties doing sth.

Unit 2 (used to + 动词原形) 话题作文:过去与现在的变化对比介绍 重点:I used to be afraid of the dark.

There used to be an apple tree in this garden. (There be句型)

He was used to living in the countryside.

The knife is used to cut things.

Unit 3 (含有情态动词的被动语态、sixteen-year-olds) 话题作文:校规、班规、家规及看法

Seven-year-olds are allowed to go to school.

含有情态动词的被动语态:should/can/could/must/may + be + 动词过去分词

Unit 4 (*虚拟语气、条件状语从句)

*If I had one million dollars, I would help poor people. (虚拟语气)

虚拟语气:主句would+动词原形,if从句一般过去时

重点:He will call me at once, if he comes here tomorrow. (条件状语从句)

条件状语从句:当主句是一般将来时时,if 条件状语从句用一般现在时。 I don’t know if he will come tomorrow. (宾语从句)

宾语从句中的时态根据宾语从句特点进行判断。

Unit 5 (情态动词表示推测)

It must be Ming’s. It has her name on it. (肯定的推测must:一定是)

It can’t be John’s. He has gone to Hangzhou. (否定的推测can’t:一定不是)

It can’t be Mike’s. It’s much too small for him.

It could be Carol’s. She studies French. (可能的推测could/might:可能是)

It

It . She plays the guitar.

Unit 6 (定语从句that/who)

What kind of music do you like?

I like music that I can dance to.

We prefer music that has great lyrics.

I prefer groups that play quiet and gentle songs.

He loves singers who write their own music.

先行词为物时用that,,在定语从句可以作主语或宾语,作宾语时可以省略,先行词为人时用who或that,定语从句中的谓语动词单复数由先行词决定。

Unit 7 (定语从句where)

Where would you like to visit?

I hope to go to France some day.

I like places wherewhere在定语从句中作状语,如果是作主语或宾语时用that(中考不作要求)。

Unit 8 (动词短语、volunteer表达) 话题作文:申请加入自愿者服务(简介、打算及看法),结合环保

归纳与up, with, at, down, out, off等短语动词:set up, talk with/to, point at, write down,? 再如动词短语:look up/at/for/after/like/out/?

turn off/on/up/down

set/look/put/turn/cut/cheer/clean/call/give/pick/make/mix/fix/think/use/get/show/? up

Unit 9 (一般过去时和一般现在时被动语态)

The car was invented in 1885.

Potato chips were invented by mistake.

This book was written by Li Lei.

They are used for seeing in the dark.

一般现在时被动语态:am/is/are + 动词过去分词

一般过去时被动语态:was/were + 动词过去分词

(分析主语与谓语动词之间的关系来判断是被动语态还是主动语态,再看句子的时间来判断时态)

Unit 10 (过去完成时:had + 动词过去分词) she went outside, the bus had already left. she got to school, she realized that she had left her backpack at home.

by the time/when引导的从句用一般过去时,主句用过去完成时。

背记常见动词的过去式与过去分词

Unit 11 (宾语从句)

Excuse me. Do you know buy some shampoo?

Could you please tell me get a dictionary?

Can you tell me to the post office? (疑问词 + to do)

Do you know if there are any public restrooms around here?

宾语从句语序:连接词+主语+谓语+其它

宾语从句时态:主句(一般现在时):宾语从句(任何时态都有可能,具体看宾语从句本身) 主句(一般过去时):宾语从句(只能用过去的某一种时态,除表述真理外)

Unit 12 (中西方文化、提议、be supposed to do sth)

You are supposed to kiss.

You’re not supposed to shake hands.

了解英语国家文化习俗

Unit 13 (make动词用法:make sb + 形容词或动词原形)

Loud music makes me tense. (make sb + 形容词)

Waiting for her made me angry.

Sad movies make her want to leave. (make sb + 动词原形)

He keeps me working. (keep sb 动词-ing)

He wants to keep the windows closed. (keeo sb/sth + 形容词)

Unit 14 (现在完成时、一般过去时等时态复习) yetalready

yet. twice. for four years. since he was seven years old. since three years ago.

since 2008. in last/past few years.

Unit 15 (现在进行时、一般现在时、一般过去时used to、现在完成时、被动语态) We are trying to save the manatees. (现在进行时:be + doing)

Manatees eat about 100 pounds of food a day. (一般现在时,注意第三人称单数形式) There used to be a lot of manatees. (表示过去有什么:there used to + 动词原形) What happened to the manatees? (happened to sb)

It was discovered that they were endangered. (被动语态:be + 动词过去分词)

Some of the swamps have become polluted. (现在完成时:have/has + 动词过去分词) 话题作文:环保及看法等

其它一些重点知识点:

1. 区别also, too, either “也”

also: 用在句首或句中(be动词、助动词后面,实意动词前面)

too: 用于句尾,用在肯定句中

either: 用于句尾,用在否定句中

2. 区别other, the other, others, another

other: 其它的,后跟名词复数形式

others: 其余的,剩余的,后面不能再跟名词,结构:some ?, others ?.

the other: 两者中的另一个,结构:one ?, the other ?.

another: 又一;再一,表示三者或三者以上中的又一,再一

3. 区别spend, take, cost, pay “花费”

Sb spend ? on sth. (spend—spent—spent)

Sb spend ? (in) doing sth.

Sb spend some time with sb.

It take sb ? to do sth. (take—took—taken)

Sth cost sb some money. (cost—cost—cost)

Sb pay (some money) for sth. (pay—paid—paid)

4. such ... that ..., so ... that ..., too ... to ..., enough to ...

such ... that ...: such (+ a/an) + 形容词 + 名词 + that 从句(a/an要不要有后面的名词决定)

so ... that ...: so + 形容词/副词 + that 从句

... too + 形容词/副词 + to + 动词原形

... 形容词/副词 + enough to + 动词原形

5. 感官动词:hear/watch/see/... sb/sth + 动词原形或者动词-ing

6. 系动词be, look, sound, feel, taste, smell, become等后跟形容词

7. 特殊词汇:once, lesson, wonder等

once: 可以表示名词次数“一次”,也可以表示副词“曾经,一次”;

lesson: 基本词义“课”,引申词义“课,教训”等;

wonder: 表示“想知道,想了解,惊奇”

素材:

I study very well. I like English and math, but history is my favorite subject. Because there are many interesting stories in it.

I am an active boy. I like sports very much. I swim very well. I also like riding a bike.

I’m lively、kind-hearted and like to make friends. If you need help, I’ll try my best to help you. I hope we can be good friends.

I am crazy about sports activities, such as badminton, running, swimming etc. and

communicating foreigners in English is such a joy for me.

As a middle school student, I think we should try our best to do something for ?,

If I have a chance to be a volunteer, I will work harder and be polite and friendly to the ?. Everyone has a will, so do I.

As a volunteer, I sing to cheer up sick people at a local hospital, sing at schools sometimes. I love to meet some wonderful people at the hospital. But I know I must work hard so I put up signs asking for singing jobs and called up parents offering singing lessons for children. I think being a volunteer is great and I will be able to become a professional singer.

If I could be a volunteer, I would try my best to help other people.

I want to be a volunteer of ?.

I really want to be a volunteer to help ?.

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