资源简介

(共24张PPT)
Unit 2 Grammar
imperative form
Don’t worry about it.
Take Line 6.
Get off at Zhonghua Square station.
Change for Subway Line2 at Zhuquemen station.
Take Exit B.
Please look at these sentences.
祈使句
Turn left!
Turn right!
Please go upstairs!
Go downstairs!
Walk on the zebra crossing!
Don’t smoke!
Don’t play football! Don’t park your car! Please don’t eat!
Don’t pick the flowers!
look and observe观察
否定句：Don’t+动词原形
肯定句：以动词原形开头
1.Go and wash your hands. 去把手洗干净。（命令）
2. Be quiet, please. 请安静。（请求）
3.Be kind to our sister. 对姊妹要和善。（劝告）
4.Watch your steps. 走路小心。（警告）
5.Don’t smoke in the car. 车内不准吸烟。（禁止）
look and group分类
祈使句是用于表达命令、请求、劝告、警告、禁止等的句子。
说话的对象（即主语）是第二人称you，通常省略。
定义
祈使句中，谓语动词为原形。
结构
肯定句：do sth
否定句：don’t do sth.
①do型： 动词原形 + 其他
Take line 6.
乘坐6号线。
Start from Terminal 1 station.
从一号航站楼站出发。
Get off at Zhuquemen Station.
在朱雀门站下车。
1、肯定的祈使句
②be型：
be动词 + 形容词 + 其他
Be careful with the wet floor.
小心地板湿滑。
Be quiet please！
保持安静！
Be brave！
勇敢点！
1、肯定的祈使句
③Let型： Let + sb. + 动词原形 + 其他
Let us use the shared bikes.
让我们骑共享单车吧。
Let him go.
让他走吧。
Let's do it！
让我们去做吧！
1、肯定的祈使句
1、The TV is too loud. Please________.
A. turn it down B. to turn it down C. turn down it D. to turn down it
2、Kate, _______ your homework here tomorrow.
A. bring B. brings C. to bring D. bringing
3、________ me the truth, or I'll be angry.
A. Telling B. To tell C. Told D. Tell
4、If you are tired, _______a rest.
A. have B. having C. to have D. had
5、________ up early tomorrow, or you can't catch the train.
A. Getting B. Get C. To get D. Got
①do型：
动词原形 + 其他
take line 6.
乘坐6号线。
start from Terminal 1 station.
从一号航站楼站出发。
get off at Zhuquemen Station.
在朱雀门站下车。
否定
don't + 动词原形 + 其他
Don't
不要
Don't
不要
Don't
不要
2、否定的祈使句
②be型：
be动词 + 形容词 + 其他
否定
don't + be动词 + 形容词 + 其他
be rude please.
be nervous.
be hesitate！
Don't
Don't
Never
请不要粗鲁。
不要紧张。
不要犹豫！
2、否定的祈使句
③Let型：
Let + sb. + 动词原形 + 其他
否
don't let + sb. + 动词原形 + 其他
Don't
let him make any noise.
别让他发出任何噪音。
let him leave you！
Don't
别让他离开你。
Don't
let me down.
别让我失望。
= Let + sb. + not + 动词原形 + 其他
如果是let's（缩写），
否定只能是let not
2、否定的祈使句
④ no型：
No + 名词（动名词）
No entry.
不准入内。
没开玩笑。
禁止吸烟。
No kidding.
No smoking.
2、否定的祈使句
1. He is not honest.________believe him.
A. Not B. Don't C. To not D. Not to
2. _______him give up. It is very important for him.
A. Not let B. Doesn't let C. Don't let D. To not let
3. ________in the street. It's dangerous.
A. Not play B. Not to play C. Don't play D. Don't to play
4. Please ________ strict with us，we are new here ！
A. not be B. isn't C. don't be D. doesn't be
5. ______ fishing！It's illegal to catch fish in Changjiang River.
A. Don't B. Not be C. Not D. No
祈使句的反义疑问句：
祈使句的反意疑问句，通常用 will you
Pass me the book，will you
把书递给我一下，好吗？
祈使句为let’s句型时，反意疑问句为 shall we
Let's go to see the pandas, shall we
让我们去看一看熊猫,好吗
1. If you want to stay, let me know, ________？
A. will you B. shall we C. do you D. do we
2. Never come late again, ________？
A. will you B. would you C. do you D. does he
3. Let's sing a song, ________
A.will you B. do you C. shall we D. does he
4.Let’s not begin our supper until father comes back, _________
A. will you B. won’t you
C. shall we D. shan’t we
祈使句结构 （1）do型 do sth.
don't do sth.
（2）be型 be+adj.
don't + be +adj.
（3）Let型 Let sb do sth.
don't let sb. do sth.
let sb. not do sth.
（4）No型 no doing/sth.
summary
反义疑问句
祈使句，will you？
Let sb ..........，will you？
let's .............，shall we？
summary
拓展知识点
1、祈使句的回答用一般将来时
I will / I won't .
-- Please remember to bring your schoolbag.
-- OK, I will.
-- Don't eat in the classroom.
-- I won't.
2、祈使句 + and + 表结果的陈述句，用来叙述肯定的条件
祈使句 + or + 表结果的陈述句，用来叙述否定的条件
Hurry up and you'll catch the train.
=If you hurry up, you'll catch the train.
快点，你能赶上火车的！
Hurry up, or you'll miss the train.
=lf you don't hurry up, you'll miss the train.
快点，否则你会赶不上火车的！
拓展知识点
1. Let John finish the work all by himself, ____
A. shall we B. will you C. do you D. do we
2.Please turn on the light, _____
A. are you B. shall we C. shall I D. will you
3. Don’t tell him the fact now, _____
A. shall we B. shall you C. will you D. do you
4. Let ’ s go to the cinema tonight, ___
A. shall we B. will you C. shall I D. do you
B
D
C
A
5. Jim, _____ me a hand.
A. gives B. is giving C. will give D. give
6. ____ careful, Jenny! There is a tree in front of you.
A. Am B. / C. Be D. Was
7. Let's ____ our time.
A. not waste B. no wasting C. not to waste D. no waste
8. —____ higher, and you will see the house.
—OK.
A. If you stand B. To stand
C. When you stand D. Stand
D
C
A
D
9. Please ______ do it.
A. he B. let him C. let he D. him
10. _____ let anyone open the door.
A. Don't B. Will C. Not D. No
11. —Don’t be late again.
—Sorry, ______.
A. I may B. I must C. I will D. I won’t
12. —Call me when you get home.
—OK, ______.
A. I must B. I can C. I will D. I may
B
A
D
C
13. ______ 6 and 4, and you will get ten.
A. Added B. Adding C. To add D. Add
14.______ late again, or I’ll report it to your father.
A. Don’t be B. You aren’t C. Can’t be D. Aren’t
15.Don’t interrupt her when she is speaking, ______
A. won’t you B. will you C. shall we D. shan’t we
16.Let’s not begin our supper until father comes back,______
A. will you B. won’t you C. shall we D. shan’t we
D
A
B
C

展开更多......

收起↑