新目标英语八年级上Unit 8 How do you make a banana milk shake?Section A祈使句的用法课件（23张PPT）

课件23张PPT。Imperative sentenceLeft, right, left, left, right, right
Left, left, right, right, go, go, go!
Left, left, right, right, go, turn around, go, go, go!Read togetherTurn left!Guessing GameTurn right!Guessing GameWalk on the zebra crossing!Guessing GameGuessing GameDon’t smoke!
No smoking!Guessing GameDon’t park your car!
Guessing GameDon’t eat! Go upstairs!Guessing GameRead and observe(观察)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!Draw the conclusion (得出结论)祈使句的结构如下：
　　　 (Please) + do sth.
　　　(Please) + Don’t do sth.肯定：否定：Let’s do exercise.1. Jim, _____ me a hand.
A. gives B. is giving C. will give D. give
2. ____ careful, Jenny! There is a tree in front of you.
A. Am B. / C. Be D. Was
3. Let's ____ our time.
A. not waste B. no wasting C. not to waste D. no waste
4. —____ higher, and you will see the house.
—OK.
A. If you stand B. To stand
C. When you stand D. Stand
Exercises:5. Please ___ do it.
A. he B. let him C. let he D. him
6. _____ let anyone open the door.
A. Don't B. Will C. Not D. No
7. —Don’t be late again.
—Sorry, ______.
A. I may B. I must C. I will D. I won’t
8. —Call me when you get home.
—OK, ____.
A. I must B. I can C. I will D. I may
Exercises:祈使句的句型：Be quiet.
Please have a seat.
David, pay attention.Don’t be afraid.
Please do not make a noise.
Alan, don’t be late.1.动词+…
2. Please+动词…
3. 人名+动词…
肯定否定在动词前面加don’t否定Giving orders / instructions 祈使句 : 是表示请求、命令、建议等句子，通常说话的对象是第二人称you, you常被省略。
祈使句常见题型：
1.Let’s + （not）动词原形 …
Eg. Let’s go home together./ let’s not talk in the class.
2. let’s …… , shall we?
3.Let sb …. , will you?
4.祈使句 ， will you?
反意疑问句祈使句祈使句,无主语,只用动词就可以.
表示请求或命令,加上please表客气。
如果变成否定句， Don’t开头是规律。
No talking!是警示，祈使句用法要牢记。Let’s do more exercises.1. —Call me when you get home.
—OK, ____.
A. I must B. I can C. I will D. I may
2. Jim, _____ me a hand.
A. gives B. is giving C. give D. will give
3. Let me ____ on duty today.
A. am B. / C. be D. do
4. Let's ____ our time.
A. not waste B. no wasting C. not to waste D. no waste
5. —____ higher, and you will see the house.
— OK.
A. If you stand B. To stand
C. When you stand D. StandCCCADChoose the correct answer. 6. _____ forget to write to me when you
_____ get there next Tuesday.
A. Don't; will B. Please; will
C. Please; / D. Don't; /
7. Please ___ do it.
A. he B. he let C. let him D. him
8. ____ come in, please.
A. Will B. Do C. Won't D. Did
9. _____ careful!
A. Be do B. Do be C. Not D. Not do
10. _____ let anyone open the door.
A. Don't B. Will C. Not D. NoDCBBAin class1. Be quiet.
2. Take notes.
3. Listen to the teacher carefully.
4. Don’t eat in class.
…….
on the roadWalk on the zebra crossing.
2. Be careful.
3. Don’t play football.
4. Don’t run fast.
……
in the restaurantLine up.
2. Don’t push.
3. Don’t make noise.
4. Don’t waste food.
…… 祈使句结构如下：
(Please) + do sth.
(Please) + Don’t do sth.Summary肯定：否定：DO，可以放在动词前，为加强语气用。
如：Do come in,please!
Do listen to me ,please!
Do open the door,please!That’s all, see you next time!