資源簡介

(共29張PPT)
Grammar focus
Unit 2
No Rules, No Order !
Teaching Objectives
1.在各種情境中，觀察和分析句子，深入理解辨析祈使句和情態(tài)動(dòng)詞的表意功能；(學(xué)習(xí)理解)
2.掌握祈使句和情態(tài)動(dòng)詞表達(dá)規(guī)則，關(guān)注表示命令時(shí)的委婉的語氣；（應(yīng)用實(shí)踐）
3.熟練運(yùn)用祈使句和情態(tài)動(dòng)詞介紹規(guī)則，在班級(jí)活動(dòng)中積極參與“繪制規(guī)則標(biāo)識(shí)”游戲，最終評(píng)選出表現(xiàn)最佳的團(tuán)隊(duì)。（遷移創(chuàng)新）
聽第一遍：感知歌詞，注意動(dòng)詞形式的變化。
英文歌曲導(dǎo)入
________ let them in. _________ let them see
______ the good girl . You always have to be
Conceal, don't feel ,don’t ________ them know
Well, now they know.
____________. ____________.
Can't hold it back anymore
Let it go. Let it go
______ away and slam the door
I don’t care what they’re going to say
_____ the storm rage on
The cold never bothered me anyway
Don’t
Be
Don’t
Let it go
Turn
Let
let
聽第二遍：填所缺的單詞。沒聽清可以多聽幾次。
Let it go
英文歌曲導(dǎo)入
Don't let them in, don't let them see
別讓別人知道，別讓別人看到
Be the good girl you always have to be
做個(gè)好姑娘，你必須一直都是
Conceal, don't feel, don't let them know
要隱藏，不要?jiǎng)诱媲椋灰寗e人知道
Well, now they know
好吧，現(xiàn)在他們知道了
（觀察總結(jié)）What do they have in common
祈使句
表示命令、請(qǐng)求、勸告、警告和禁止等的句子。
1.Let it go, let it go
隨他吧，隨他吧
2.Turn away and slam the door
轉(zhuǎn)過身關(guān)上門
3.Can't hold it back anymore
反正再也無法隱瞞
1.動(dòng)詞原形開頭；在祈使句中，通常省略主語you，其肯定形式以動(dòng)詞原形開頭，否定形式是在動(dòng)詞原形前加don’t。
2.表示“勸告”一般用來表示請(qǐng)求、命令、勸說、號(hào)召、警告等。
3.祈使句句尾用句號(hào)或感嘆號(hào)，讀時(shí)用降調(diào)。為表示禮貌，可以在句首或句尾加上please。句末用please時(shí)，前面通常加逗號(hào)。
觀察句子，總結(jié)祈使句的特點(diǎn)
肯定句：________ (+賓語)+其他.
否定句：_____+動(dòng)詞原形 (+賓語) +其他.
1. 上學(xué)日請(qǐng)穿校服。
Wear the school uniform on weekdays, please.
Don’t watch TV before dinner.
2. 晚飯前不要看電視。
Do型祈使句
動(dòng)詞原形
Don’t
Let’s learn imperatives
Be型祈使句
肯定句：____+表語+其他.
否定句：______+be+表語 +其他.
1. 下次要細(xì)心。
Be careful next time.
2. 圖書館不要吵鬧!
Don’t be noisy in the library!
=Be quiet in the library.
Be
Don’t
Let’s learn imperatives
肯定句：____+賓語+_________+其他.
否定句：____+let+賓語+動(dòng)詞原形+其他.
或Let+賓語+___+動(dòng)詞原形+其他.
1. 咱們休息一下吧。
Let’s have a rest.
2. 不要讓他去游泳。
Don’t let him go swimming.
=Let him not go swimming.
Let
動(dòng)詞原形
Don’t
not
Let’s型祈使句
Let’s learn imperatives
No型祈使句
No+v-ing! / No+名詞!
3. 禁止釣魚!
2. 禁止停車!
1. 禁止拍照!
No fishing!
No parking!
No photos!
Let’s learn imperatives
肯定祈使句
① Do型祈使句
② Be型祈使句
③ Let型祈使句
否定祈使句
動(dòng)原+其他
Don’t+動(dòng)詞原形+其他
Be+表語+其他
Let+賓語+動(dòng)原+其他
Don’t+be+表語+其他
Don’t+let+賓語+動(dòng)原+其他
Let+賓語+not+動(dòng)原+其他
表示
“禁止”
④ No型祈使句
No+動(dòng)詞-ing!
No+名詞!
Let’s summarize
Let’s practice
Don’t be
1. It’s an important meeting. (not, be) late.
2. (not, make) any noise! Your mother is sleeping.
3. (not, talk) and (read) aloud.
4. The notice on the wall says “ ”. (no smoke)
5. (look) out! A car is coming.
6. (not, let) the baby cry.
7. Let’s (not say) anything about it.
Don’t talk
Don’t make
read
No smoking
Look
Don’t let
not say
3a. Read the sentences. Do the verbs in bold need to change forms Why
Walk in the hallway. Don’t run!
Be polite and treat one another with respect. Don’t litter. / You mustn’t litter. / You can’t litter.
Can we bring our phones to class No,we can’t. We must keep them in our lockers.
Can we eat snacks in class No,we can’t eat in class. We have to eat in the dining hall.
No, they don’t. Because the verbs appear in imperative sentences or after modal verbs.
祈使句中
情態(tài)動(dòng)詞后
2. Can we bring our phones to class
Yes, we can. No, we can't.
1. Can you play the guitar
Yes, I can. No, I can't.
can 常用于詢問能力和許可。
能力
許可
情態(tài)動(dòng)詞can，must,have to
Sb. can/can't + V原.
must 表示主觀的義務(wù)和必要，多譯為“必須”。
have to 表示客觀需要做的事情，多譯為“不得不”
2.她媽媽生病了，她不得不自己做晚飯。
Her mother is ill, she has to cook dinner by herself.
1.他必須在晚上8點(diǎn)前完成作業(yè)。
He must finish his homework before 8:00 in the evening.
表示個(gè)人主觀想法，且沒有人稱和時(shí)態(tài)的變化
表示外界客觀原因,有人稱、數(shù)和時(shí)態(tài)的變化 have to-has to
例句展示
plete then sentences using can, have to/ must, can’t/mustn't.
Don't jump the queue. You ____________wait for your turn.
I feed my dog many kinds of food, but I ___________ give him chocolate. It is bad for him.
have to/must
have to/must
can't/mustn't
plete then sentences using can, have to/ must, can’t/mustn't.
3. A: Can I leave the classroom if I don't feel well
B: Yes, but you ______________ tell your teacher about it when you ____________ be absent from class.
must/have to
have to
plete then sentences using can, have to/ must, can’t/mustn't.
4. A: Hey! Can I look at your book
B: Shh, we ______________ talk quietly in the library.
5.A: Can you put on your seat belt We ______________ wear one when we're in a car.
B: Sure. Thanks!
have to/must
have to/must
3c. Look at the first sign and read the rules. Then write the rules for the other signs.
Do not eat or drink.
No eating or drinking.
You can’t / mustn’t eat or drink.
Do not park here.
No parking.
You can’t / mustn’t park here.
Do not take photos here.
No photos.
You can’t / mustn’t take photos.
3c. Look at the first sign and read the rules. Then write the rules for the other signs.
Do not swim here.
No swimming.
You can’t / mustn’t swim here.
Do not feed birds.
No feeding.
You can’t / mustn’t feed birds.
3c. Look at the first sign and read the rules. Then write the rules for the other signs.
Practice: Look at these signs and guess their meanings.
No fishing!
Don’t pick
the flowers.
You mustn’t
smoke here.
Don’t fish here!
No picking
the flowers.
No smoking!
rules
No smoking
No music
Don’t litter
No eating
or drinking
Keep
silence
Be quiet
in class.
Practice: Look at these signs and guess their meanings.
Group Work
3d. In groups, brainstorm three rules for one of the places below. Then draw signs to show the rules. Share your signs in class and explain what they mean.
library
school
dining hall
park
cinema
hospital
一、用have to或has to填空。
1.We ________ clean our classroom after school.
2.She _______ make her bed after getting up.
3.It’s late. Mr Beckman ______ go to work by car.
4.Emily and Peter join a music club. They _______ practice the guitar every day.
have to
have to
has to
has to
Exercises
二、按要求寫出正確的單詞、詞組或句子。
插隊(duì)(短語) __________ 2. 喂養(yǎng) (動(dòng)詞) ___________
3. 離開(動(dòng)詞) __________ 4. 缺席(短語) __________
5. 輕聲地(副詞) __________ 6. 座椅安全帶 (短語) __________
7. 制造噪音（短語）__________ 8. 電影院（名詞）___________
jump the queue
feed
leave
be absent from
quietly
seat belt
make noise
cinema
Exercises
Exercises
二、按要求寫出正確的單詞、詞組或句子。
9. 在走廊里步行。 ___________________________
10. 我們能把手機(jī)帶到學(xué)校嗎？ _______________________
11. 我們不得不在餐廳吃東西。___________________
12. 你能戴上座椅安全嗎？ ______________________________________
Walk in the hallway.
Can we bring the phones to class
We have to eat in the dinning hall.
Can you put on your seat belt
三、根據(jù)句意，用can和can’t填空。
1. Mr Green______ smoke here because there’s a sign on the wall. It says “No smoking.”
2. It’s very hot outside. You _____ wear a hat.
3. We _____ eat in the classroom because it’s impolite to teachers.
4. I ______ go to bed after 11:00 on school night.
5. The students ____ read books in the library.
can’t
can
can’t
can’t
can
Exercises
Homework
1. remember all the grammar points about imperatives and modal verbs can, have to and must.
2. Make a poster of the rules and draw sings for them.
3. Write a passage to show your family rules by using the grammar you have learned.

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