1、【外研版教材适用】初三九年级英语下册Module-4-Unit-3课件Unit 3Language in use4hang the food in a treemove onby a streamtidy upreach outturn paleplay with sticks把食物挂在树上把食物挂在树上继续移动继续移动在小溪旁边在小溪旁边收拾收拾;整理整理伸出伸出(脸色脸色)变得苍白变得苍白玩枝条玩枝条Translate the phrases into English.Review What suggestions can you give to people when go walkin
2、g in the mountains?Lead in1.The visitors should wear a hat.2.Dont walk along the edge.3.Theyd better take some food and water.4.They should wear comfortable shoes.Lead inYou must be careful of falling stones.You mustnt walk too close to the edge of the hill path because you might fall and hurt yours
3、elves.You should always wear proper clothes.Bears might think our rubbish is food.Can we go rock climbing?No,you cant.Read and pay attention to the colored words.PresentationComplete the rules.Dont drink the water.Dont climb the ladder.No swimming.You mustnt turn left.Presentation1.No parking.2.Dont
4、 play football.3.You mustnt stop here.213Match the pictures and the rules.Lead in Be careful of children crossing the road.Its 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 ru
5、les.Presentation1.What does Zhang Wenpeng try to say with his drawing?2.What does Zhou Zhiyun try to say with his painting?Pollution is causing damage to the progress weve made.People mustnt waste electricity.Activity 6:Read the passage and answer the questions.Presentation3.What does the school sug
6、gest the students should do?4.How can a school become a“green school”?Students should pass on what they have learnt at school to their parents and neighbours.A school can become a“green school”by including education about the environment in the timetable.PresentationActivity 7:Listen and complete th
7、e sentences.1.The first thing you have to do is to carefully.2.Think about where and wether there are .3.You should only take makred .4.Make sure you know where for lunch.Presentation5.Dont forget to tell people to for the picnic.6.Dont walk when it is or in .7.You must not try out a with a group.Pr
8、esentationAround the worldAround the world Ecotourism(生态旅游生态旅游)Eco-tourism is also known as“responsible tourism”.It means you visit places without damaging the environment.Many countries around the world have started ecotourism holidays and trips.PresentationTourists help the local communities look
9、after their natural environment.Here are some rules of ecotourism.PresentationEco-tourismDoDo Take rubbish away with you.Walk on paths or roads.Take photos but nothing else.DonDon t t Dont pick flowers or damage trees.Dont pollute rivers or streams.Dont make open fires in the forests.Presentation情态动
10、词情态动词本身有一定的词义本身有一定的词义,表示说话人的表示说话人的情绪、态度或语气情绪、态度或语气,但它们不能单独作谓语但它们不能单独作谓语,只能和行为动词原形一起作谓语只能和行为动词原形一起作谓语,表示完整表示完整的意思。的意思。本单元我们主要接触的情态动词有本单元我们主要接触的情态动词有:情态动词情态动词Presentation1.can(1)表示能力表示能力,意为意为“能能,会会”。Can you play tennis?(2)表示提建议或请求。表示提建议或请求。Can you pass me that book?(3)表示表示“许可许可,可以可以”,常用于口语中。常用于口语中。You
11、 can use my bike.否定式用否定式用cant.Presentation提示提示:表示表示否定推测表示表示否定推测“一定不一定不,不可不可能能”,常用常用cant,。I saw him playing football just now.He cant be in the classroom.Presentation【2013江苏徐州江苏徐州】12.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
12、解析】考查情态动词。答句意为考查情态动词。答句意为“是的，是的，你可以，但你必须在午饭之前归还给我你可以，但你必须在午饭之前归还给我”,所所以选择以选择B。Presentation【2013湖南益阳湖南益阳】24.The man _be my English teacher.He has gone to Canada.A.might B.must C.cant【解析解析】考查情态动词的用法。考查情态动词的用法。must表肯表肯定的推测，意为定的推测，意为“一定一定”，可能性较大，可能性较大，might表示肯定推测，表示肯定推测，“可能可能”，可能小较，可能小较小，小，cant表示否定推测，意为
13、表示否定推测，意为“不可能不可能”。根据句意：那个人不可能是我的英语老。根据句意：那个人不可能是我的英语老师，他去加拿大了。故选师，他去加拿大了。故选C。Presentation2.must(1)表示表示“必须必须”,强调主观意愿或客观要求。强调主观意愿或客观要求。I must go now.You must finish it on time.(2)表示肯定推测表示肯定推测“一定一定”,一种可能性很大的一种可能性很大的推测推测,一般用于肯定句中。一般用于肯定句中。Theres someone knocking at the door.It must be Jim.Presentation(3
14、)mustnt意为意为“不要不要”,表示禁止或不表示禁止或不允许。允许。You mustnt sit on the stairs.(4)以以must开头的一般疑问句开头的一般疑问句,肯定回肯定回答用答用must,否定回答要用否定回答要用neednt。Must I return the book now?No,you neednt./Yes,you must.Presentation()1.Must I stay at home and take care of her？No,you _.A.mustnt B.neednt C.cant()2.Please dont throw paper ab
15、out.We _ keep our environment clean.A.can B.must C.mayBBPracticePracticePresentation3.may和和might 表示允许或请求；表示没有把握的表示允许或请求；表示没有把握的推测；推测；may 可放在句首，表示祝愿。可放在句首，表示祝愿。He might be at home.May God bless you!注意：注意：might 表示推测时，不表示时表示推测时，不表示时态。只是可能性比态。只是可能性比may 小。小。PresentationPeter _ come with us tonight,but he
16、 isnt very sure yet.A.must B.may C.can D.willPresentation4.should表示表示“应该应该”，常用来表示劝告、建议，常用来表示劝告、建议,认为认为“某人应该做某事某人应该做某事”或或“有义务责有义务责任做某事任做某事”。We should obey traffic laws.You shouldnt have made this kind of silly mistakes.这时它可以和这时它可以和 ought to,be supposed to 互换使用互换使用。Presentation2)should(ought to)表示推测时，
17、是指有表示推测时，是指有一定根据的推测，意为一定根据的推测，意为“可能、该可能、该”。When can I come for the photos?I need them tomorrow.They should be ready by 12:00.Its nearly seven oclock.Jack should be here at any moment.Presentation _ I borrow your MP3?Sure.Here you are.A.May B.Should C.Must D.Would Is John coming by train?He _,but he
18、may not.He likes driving his car.A.must B.can C.need D.shouldPresentationPracticePracticeWork in pairs and talk about possible rules for visitors to the forests,using must,mustnt,should,shouldnt.eg:Dont walk on the lawn(草坪草坪).You should take care of the lawn.Presentation()1.May I go out now,Dad?No.Y
19、ou _ let your mother know first.A.can B.may C.need D.mustD中考链接中考链接【解析解析】考查情态动词词义。由答句中考查情态动词词义。由答句中“不不”，表示语气要求很坚决，应该是表示语气要求很坚决，应该是“必须必须”。Practice()23.Whos singing in the next room?It _ be her.She has gone to New York.A.cant B.must C.shouldnt D.can【解析解析】考查情态动词表推测。表示否定推考查情态动词表推测。表示否定推测时，用测时，用cant，意为，意为
20、“一定不一定不”。must表示推测时，意为表示推测时，意为“一定一定”，用于肯定，用于肯定句；根据答语句；根据答语“她已经去了纽约她已经去了纽约”可知是否可知是否定推测，故选定推测，故选A。APractice()26._ we clean the classroom at once?No,you _.You _ clean it after school.A.Must;neednt;may B.Must;mustnt;can C.Shall;cant;must D.Need;mustnt;may【解析解析】情态动词的用法。根据前后句意可推情态动词的用法。根据前后句意可推断对方在询问断对方在询问
21、“我必须马上打扫教室吗？我必须马上打扫教室吗？”。而而must引导的一般疑问句否定回答用引导的一般疑问句否定回答用neednt。故选故选A。APractice()4.Look at the sign!Oh,I see.We _ waste water.A.can B.must C.mustnt D.neednt【解析解析】情态动词的用法。根据标志可知为禁情态动词的用法。根据标志可知为禁止浪费水的标志。表示禁止用止浪费水的标志。表示禁止用must，因此选因此选C。CPractice()20.Good morning.Ive got an appointment with Ms King in h
22、er office.Morning.You _be Mr.Jones.This way,please.A.will B.must C.can D.might【解析解析】情态动词的用法。情态动词的用法。will将要，表意将要，表意愿；愿；must 必须；应该，表猜测时，用于肯定必须；应该，表猜测时，用于肯定句，意为句，意为“一定一定”，可能性较大；，可能性较大；can能，会，能，会，表猜测时，常用于否定句和疑问句；表猜测时，常用于否定句和疑问句；might 可能，表猜测时，可能小。依据句意可能，表猜测时，可能小。依据句意“你一你一定是琼斯先生吧。定是琼斯先生吧。”，故选，故选B。BPractic
23、e()33.Whose backpack is this?It _ be Jims.Look,his students card is in it.A.must B.can C.mustnt D.cant【解析解析】情态动词表推测由情态动词表推测由“他的学生证他的学生证在书包里面。在书包里面。”可知可知“这个书包一定是吉这个书包一定是吉姆的。姆的。”APractice()7.You _ stop when the traffic light turns red.A.can B.had better C.needD.must【解析解析】本题考查情态动词的辨析。句意本题考查情态动词的辨析。句意为：
24、当交通灯变红，你为：当交通灯变红，你“必须必须”停下来。停下来。根据语境可知此空意为根据语境可知此空意为“必须必须”，四个选，四个选项中，只有项中，只有must有此意，故选有此意，故选D。DPractice()8.Mum,must I stay there the whole day?No,you_.You _ come back after lunch,if you like.A.mustnt;can B.neednt;must C.neednt;may【解析解析】考查情态动词的用法。由考查情态动词的用法。由must引导的引导的一般疑问句表示否定回答时需要用一般疑问句表示否定回答时需要用ne
25、ednt或或dont have to；表示答应准许某人时情态动词；表示答应准许某人时情态动词可以用可以用can或或may。故选。故选C。CPractice()10.Can we run across the road now?No,we _.We have to wait until the light turns green.A.neednt B.mustnt C.couldnt D.shouldnt【解析解析】考查情态动词。句意：考查情态动词。句意：我们现在可我们现在可以跑着过马路吗？以跑着过马路吗？不不,不可以不可以,我们必须等到我们必须等到绿灯亮。表示绿灯亮。表示“禁止，不许可禁止，不
26、许可”时用时用cant 或或mustnt，其中后者语气更强烈一些。，其中后者语气更强烈一些。BPractice()21.A country has dreams.We teenagers _ also have dreams.With dreams and hard work,anything amazing can be created.A.may B.must C.should【解析解析】考查情态动词。一个国家有梦想，我考查情态动词。一个国家有梦想，我们青少年也有梦想，有梦想和努力工作，任何们青少年也有梦想，有梦想和努力工作，任何奇迹都能创造。奇迹都能创造。may“可以可以”；must“必
27、须必须”；should“应该应该”。根据题意选。根据题意选C。CPractice()37.Whos the man over there?Is it Mr.Black?It _ be him.Hes much taller.A.may not B.cant C.will not D.mustnt【解析解析】考查情态动用法。考查情态动用法。句意：那边那个句意：那边那个人是谁？是布莱克先生吗？一定不是他，他人是谁？是布莱克先生吗？一定不是他，他高多了。情态动词表推测：高多了。情态动词表推测：“一定一定”用用must，“可能可能”用用might、may、could；“一定一定不不”用用cant。故选
28、。故选B。BPractice()21.You mustnt go off on your own,because you _ get lost in the mountains.A.should B.must C.need D.might【解析解析】考查情态动词的用法。根据句意考查情态动词的用法。根据句意“你你不许一个人去，因为你可能在大山里迷路不许一个人去，因为你可能在大山里迷路”，might 意为意为“可能可能”，表猜测。故选，表猜测。故选D。DPractice()Lets go climbing,shall we?You _ be joking!Dont you know Im afraid of high places?A.may B.can C.must D.should()The man is feeling much better now,so you _ call a doctor.A.neednt B.cant C.mustnt D.shouldntCAPractice
