Module 4 Rules and suggestions.Unit 3 Language in use.课件

课件40张PPT。Unit 3Module 4 Rules and suggestionsLanguage in usehang the food in a tree
move on
by a stream
tidy up
reach out
turn pale
play with sticks把食物挂在树上
继续移动
在小溪旁边
收拾；整理
伸出
(脸色)变得苍白
玩枝条RevisionTranslate the phrases into English. What suggestions can you give to people walking in the mountains?1. The visitors should wear a hat.
2. Don’t walk along the edge.
3. They’d better take some food and water.
4. They should wear comfortable shoes.
…You must be careful of falling stones.
You mustn’t walk too close to the edge of
the hill path because you might fall and
hurt yourselves.
You should always wear proper clothes.
Bears might think our rubbish is food.
--- Can we go rock climbing?
--- No, you can’t.Read and pay attention to the colored words. Complete the rules.Don’t drink the water.Don’t climb the ladder.No swimming.You mustn’t turn left.No parking.
Don’t play football.
You mustn’t stop here.213Match the pictures and the rules.×Be careful of children crossing the road.
It’s dangerous to stay out in the sunshine too long without a hat.
Smoking is not allowed inside the building.
Never go mountain climbing in bad weather. Match the signs with the rules.1 Match the signs with the rules and warnings.Answers:
1.
2.
3.
4.
5.
6. —— c
—— b
—— d
—— e
—— f
—— a情态动词本身有一定的词义，表示说话人的情绪、态度或语气，但它们不能单独作谓语，只能和行为动词原形一起作谓语，表示完整的意思。
本单元我们主要接触的情态动词有：情态动词1. can
(1) 表示能力，意为“能，会”。
Can you play tennis?
(2) 表示提建议或请求。
Can you pass me that book?
(3) 表示“许可，可以”，常用于口语中。
You can use my bike.
否定式用can’t. 提示:
表示表示否定推测“一定不，不可能”，常用can’t。
I saw him playing football just now. He can’t be in the classroom. —Can I borrow your ruler, please?
—Yes, you______. But you must return it to me before lunchtime.
A. have B. can C. must D. used to
【解析】考查情态动词。答句意为“是的，你可以，但你必须在午饭之前归还给我”，所以选择B。The man ______be my English teacher. He has gone to Canada.
A. might B. must C. can’t
【解析】考查情态动词的用法。must表肯定的推测，意为“一定”，可能性较大，might表示肯定推测，“可能”，可能小较小，can’t表示否定推测，意为“不可能”。根据句意：那个人不可能是我的英语老师，他去加拿大了。故选C。2. must
(1) 表示“必须”，强调主观意愿或客观要求。
I must go now.
You must finish it on time.
(2) 表示肯定推测“一定”，一种可能性很大的推测，一般用于肯定句中。
—There’s someone knocking at the door.
—It must be Jim. (3) mustn’t意为“不要”，表示禁止或不允许。
You mustn’t sit on the stairs.
(4) 以must开头的一般疑问句，肯定回答用must，否定回答要用needn’t。
—Must I return the book now?
—No, you needn’t. / Yes, you must. ( )1. —Must I stay at home and take care
of her？
—No, you ______.
A. mustn’t B. needn’t C. can’t
( )2. Please don’t throw paper about. We
_______ keep our environment clean.
A. can B. must C. mayBBPractice3. may和might
表示允许或请求；表示没有把握的推测；may 可放在句首，表示祝愿。
He might be at home.
May God bless you!
注意： might 表示推测时，不表示时态。只是可能性比may 小。Peter ______ come with us tonight, but he isn’t very sure yet. 　 A. must　 　B. may　
C. can　 D. will4. should
表示“应该”，常用来表示劝告、建议, 认为“某人应该做某事”或“有义务责任做某事”。
We should obey traffic laws.
You shouldn’t have made this kind of silly mistakes.
这时它可以和 ought to, be supposed to 互换使用 。2) should (ought to)表示推测时，是指有一定根据的推测，意为“可能、该”。---When can I come for the photos? I need them tomorrow.
---They should be ready by 12:00.
It’s nearly seven o’clock. Jack should be here at any moment.— _______ I borrow your MP3?
— Sure. Here you are.
A. May B. Should
C. Must D. Would
— Is John coming by train?
— He _______, but he may not. He likes driving his car.
　　A. must??????????????? B. can??????????????
C. need?????????????? D. shouldPracticeWork in pairs and talk about possible rules for visitors to the forests, using must, mustn’t, should, shouldn’t.eg: Don’t walk on the lawn (草坪).
You should take care of the lawn.
…2 Read the list of rules and write sentences using must, mustn’t, should or shouldn’t.Answers:
1. You must check in at the main gate when you come to the centre.
2. You should climb with someone.
3. You must wear a hard hat at all times.
4. You must wear the correct climbing shoes.5. You must wear comfortable clothes.
6. You mustn’t climb without a rope.
7. You mustn’t eat or drink anywhere except in the restaurant.
8. You shouldn’t listen to personal music players while climbing.
9. You shouldn’t talk in a mobile phone while climbing.4 Complete the passage with the correct form of the words in the box.Answers:
1. worried
2. Although
3. stream(s)
4. tourists
5. keepingFree TalkHow to protect the forests?
Do you have some suggestions?
Talk with your partner.Now write possible rules for visitors to the forests.1. You should help clean up the forest.
2. You shouldn’t throw rubbish into the stream.
3. You must take your rubbish home.
4. You mustn’t cut your names into the tress.链接中考（2017重庆）--- May I take the dog with me, sir??? --- ________. Pets are not allowed to enter the hall.?? A. Yes, you may???????? B. No, you mustn’t????
C. Yes, you can??? D. No, you needn’t
【解析】考查情态动词用法。根据答语不被允许知道应该是否定，排除A和C，由语境是不行，是禁止，而不是不必，可选择性的，故答案是B。B（2017河南）I don’t care what people think． Well，you ___．You’re not alone in this world.
A．can ?B．may? C．should? D．Will
【解答】答案：C．can能，会；may可以；should应该；will将会．考查情态动词的用法．根据题意，可知答话的人提了一个建议。你应该关注别人对你的评价的．should可以用来向别人提建议，故选C．C（2017上海）–______ I park my car here for a while??? –No, you mustn’t. Do you see the sign “NO PARKING”?
A. Would???????? B. May?? ?
C. Must?? ?? D. ShouldB( ) ---Is that man Mr. Zhang?
---It ______ be him. He went to Beijing for a meeting yesterday. （2017·四川成都）
A. can’t B. mustn’t C. needn’t
( ) Students ______ enjoy the colorful school life if they study at home instead of going to school. （2016·山东临沂）
A. mustn’t B. can’t
C. must D. canAB( ) The passengers ______ show their ID cards before getting on the plane. （2016·湖南株洲）
A. might B. must C. could
( ) ---Mum, _____ I visit the science museum tomorrow?
----I’m afraid you can’t. It is closed on Monday. （2017·湖南衡阳）
A. must B. may C. shouldBB( ) The man _____ be our math teacher. He has gone to Chengdu. （2016·四川巴中）
A. must B. might C. can’t
( ) I can’t go with you. I _______ stay at home until my parents come back. （2016·江苏宿迁）
A. can B. may
C. must D. couldCC( ) －Is that man Mr. Smith?－It _____ be him. He has gone to New York on business. （2017天津）
A. may not B. needn’t
C. can’t D. mustn’t
( ) － You _____ park here! Look at the sign, it says “No parking”.－ Sorry, I didn’t notice that sign just now. （2016苏州）
A. won’t B. needn’t
C. mustn’t D. couldn’tCC( ) －_____ I use your dictionary?－Of course. But please return it to me before you leave. （2015长沙）
A. Must B. Need C. May
( ) －He _____ be in the classroom, I think.－No, he _____ be in the classroom. I saw him go home a minute ago. （2016安顺）
A. can; may not B. must; may not
C. may; mustn’t D. may; can’tCD( ) －Do you have any plans for this Sunday?－I’m not sure. I _____ go to the countryside to see my grandmother. （2017安徽）
A. can B. must C. may D. need
( ) Nowadays, all passengers _____ go through safety check before take a train. （2016泰安）
A. can B. may C. must D. willCC( ) It’s surprising that Mr. Ma’s little daughter _____ speak English so well. （2017重庆A/C卷）
A. must B. can
C. mustn’t D. can’t
( ) －Have you decided which high school to choose?－Not yet. I _____ go to Guangming High School. （2018重庆B卷）
A. must B. shouldn’t
C. may D. needn’tBC( ) —I think we need to sit down and have a talk.—I _____ agree more. Let's take the bench over there. （2017无锡）
A. could
B. couldn’t
C. should
D. shouldn’tB