1、If you study hard, you will get good grades.REVISION:真實(shí)性的條件狀語從句：真實(shí)性的條件狀語從句：主句用主句用將來時(shí)將來時(shí)，if引導(dǎo)的從句用引導(dǎo)的從句用一般現(xiàn)在時(shí)一般現(xiàn)在時(shí)。（主句和從句的位置可以互相換置）（主句和從句的位置可以互相換置）虛擬語氣的條件狀語從句：虛擬語氣的條件狀語從句：主句：主語主句：主語+would+do+其它其它從句：從句：If+主語主語+done(were)+其它其它（主句和從句的位置可以互相換置）（主句和從句的位置可以互相換置）If I had lots of money , I would buy a big hou

2、se.I would buy a house ,If I were you.What does he do?He is a teacher.What do they do?Theyre studentsIf you are a student , you must study hard. Yes or no?If you are a student , you must finish you homeworker on time. Yes or no?情態(tài)動(dòng)詞：情態(tài)動(dòng)詞：must, can, could, may, might.情態(tài)動(dòng)詞情態(tài)動(dòng)詞+動(dòng)詞的原形動(dòng)詞的原形 Eg: We must d

3、o our homework. Guessing gamesWhat does she do?She could/might be a/an_She must be a teacher.teacher nurse. What does he do? He could/might be a _He must be a doctor.workerfamer doctorHe is a doctor. Grammar Focus表示推測的情態(tài)動(dòng)詞表示推測的情態(tài)動(dòng)詞 在英語中，表示對某件事物的確定程在英語中，表示對某件事物的確定程度，即表示推測的時(shí)候，我們通常會(huì)用到度，即表示推測的時(shí)候，我們通常會(huì)用到

4、以下情態(tài)動(dòng)詞以下情態(tài)動(dòng)詞.(情態(tài)動(dòng)詞情態(tài)動(dòng)詞+動(dòng)詞的原形動(dòng)詞的原形)must, can, could, may, might.(肯定肯定)cant, couldnt. (否定否定)must 一定，肯定（一定，肯定（100%的可能性）的可能性）might, could 有可能，也許（有可能，也許（20%80%的可能性）的可能性）cant 不可能，不會(huì)（可能性幾乎為零）不可能，不會(huì)（可能性幾乎為零）cantcouldmightWhose football is it?It Jims.He loves playing football.mightcould beWhose backpack is i

5、t?It Anns. It has her name on it.Annmust be=belong to (sb.) 屬于某人屬于某人 be sb.s 是某人的是某人的= It must belong to AnnWhose violin is it?It Zhang Fans. she plays the violin.could/might beJohnNo, it isnt. It ( ) Johns. Its too small for him.Is this T-shirt Johns?cant beLook and guess.Look and guess.Who is she?

6、She cant be Guo Jingjing.She might/could be Wang Nan.She must be Zhang Yining.?Oh, yes. She is Zhang Yining.cant在此表示猜測，在此表示猜測，譯為譯為“ “不可能不可能” ”，后接，后接動(dòng)詞原形。動(dòng)詞原形。might/could在此表示猜在此表示猜測，譯為測，譯為“ “也許，可能也許，可能” ”，后接動(dòng)詞原形。后接動(dòng)詞原形。must在此表示猜測，在此表示猜測，譯為譯為“ “肯定，極可能肯定，極可能” ”，后接動(dòng)詞原形。后接動(dòng)詞原形。肖勇肖勇Whose notebook is this?

7、Why?Because his name is on the book.It must belong to Xiao Yong. = It must be XiaoYongs.Whose skirt is this?JaneMikeIt belong to Jane.It belong to Mike.Because she is the only woman here.cantmustWhy?Whose skirt is this?JaneMikeMiss YangMiss YangIt could be It might belong to Janes.Miss Yangs.Jane.Mi

8、ss Yang.It cant be Mikes.belong to Mike.Whose is this ?It cant be sbs.It must be sbs.It could /might be sbs.belong to sb.belong to sb.belong to sb.-Whose book is this ?-Whose book is this ?(=It must belong to Mary)Bush-It_ -It_ bebe Mary Maryss. . Because Hemingway is her Because Hemingway is her fa

9、vorite authorfavorite authorPairwork:John Tony mustHemingway：:作家，作者作家，作者 John Tony -Whose football is this ?-Whose football is this ?-It -It couldmight be( couldmight be( couldmight blong to ) ) John and Tony s. They like playing John and Tony s. They like playing football.football.Jim-Whose bike is

10、 this ?-Whose bike is this ?-It -It couldmightcouldmight blongblong bebe Jim. Jim. He rides his bike every He rides his bike every morning.morning.1a: look at the picture and fill in the chart Cloth-ingFun thingsKitchen thingshatvolleyballplateT-shirtjacketToy carmagazineCDbookcup picnic ：piknik ( (

11、自帶食物的自帶食物的) ) 郊游野餐郊游野餐 PersonJanes little brotherMary CarlaDeng WenGraceThingVolleyballToy carMagazineBookCDReasonHemingway is herfavorite author.She loves volleyball.He was the only little kid at the picnic.She always listens to classical music.He loves cats.Listen and match each person with a thin

12、g and a reason.1. Who is the man over there? Is it Mr Li? Who is the man over there? Is it Mr Li? - NO, it _ be him. Mr Li is much taller. - NO, it _ be him. Mr Li is much taller. A.mustnt B. have to C.cant A.mustnt B. have to C.cant 2. Mary _ be in Paris. I saw her in town only a few 2. Mary _ be i

13、n Paris. I saw her in town only a few minutes ago.minutes ago. A. mustnt B. should C. cant A. mustnt B. should C. cant 3. Peter _ come with us tonight, but he isnt very 3. Peter _ come with us tonight, but he isnt very sure yet.sure yet. A. must B can. C. might A. must B can. C. might 4.I thought yo

14、u _ like something to read, so I 4.I thought you _ like something to read, so I have brought you some books.have brought you some books. A. cant B. couldnt C. must A. cant B. couldnt C. mustC C C C . Fill in the blanks with must, cant, could or might. 1.The notebook be Mings. It was on her desk. 2.T

15、he homework be Carols. She wasnt at school today. 3.The soccer ball be John s or Tonys. They both play soccer,dont they? 4.The French book be Li Yings. Shes the only one whos studying French.must/mightcantmight must5.I cant find my backpack. It be still at school.6.The photo be Lus. Those are his pa

16、rents.7.The red bicycle be Hus. She has a blue bicycle.8.This ticket be my aunts or uncles. Theyre both going to the concert.might/couldmustcantmight/could情態(tài)動(dòng)詞情態(tài)動(dòng)詞must, might, could, cant 后接動(dòng)詞原形后接動(dòng)詞原形, 可以表示對現(xiàn)在的情況的推測可以表示對現(xiàn)在的情況的推測. .1.Words:2.Sentence:belong, belong to, author, hair band - Whose book

17、is this? - It Marys. It Mary.3.must表示非常肯定的猜測表示非常肯定的猜測. 100%的可能性的可能性might /could 表示有可能的猜測表示有可能的猜測. 20%80%的可能性的可能性cant 表示肯定不可能表示肯定不可能. 可能性幾乎為零可能性幾乎為零 Unit 5Unit 5 It It must must belong to Carla. belong to Carla.aliens Unit 5Unit 5 It It must must belong to Carla. belong to Carla.aliensUFO 1. Look at

18、the pictures. Then use the words from the box to write a sentences about each picture.a. The UFO is landing.b. c. The alien is chasing the man.The man is running.land man UFO run alien chaseWhy do you think the man is running?He could be running for exercise.But hes wearing a suit. 2a, Examples to e

19、nd the story:1. At last, the alien caught the man and took him to the UFO, and flew away.2.The man ran as fast as he could. Suddenly “Might I make friends with you?” The alien stopped just in front of the man, with a big smile and both its arms opened to himThey seeThe man saysThe womanSays1. a man

20、running. He could be _ He might be _2. something in the sky.It could be _It must be _3. a strange creature.It must be _I must be _4. a woman with a camera.She could be _They must be _a helicoptera UFOan aliendreamingfrom the TV newsmaking a movierunning for exerciselate for workWhy do you think the

21、man is running?No, hes wearing a suit. He might be running to catch a bus. He could be running for exercise.2c. Role play the conversation between the man and woman.Sample dialogue 2:A: Why do you think the girl is crying?B: She could be crying for the failing of the exam.A: No, her cat died. She mi

22、ght be crying for her dead cat.Language pointsOne day, when Conan was playing football he got a phone call from super-rich Bill.Half an hour ago, someone knocked (打昏打昏) me out while I was looking inside my safe (保險(xiǎn)柜保險(xiǎn)柜)! Then the attacker(襲擊者襲擊者) took all the money in it!Are you alone here?Theres ju

23、st Fred the gardener, Molly the cook and Joe the driver. I was watering the plants in the garden. I didnt see or hear anything!I was washing the car in the garage. I dont know what happened! I was always here to cook this roast (烤肉烤肉) for the master! I dont know whats going on! Conan looked around w

24、ithout a word. He found the meat is still hard and all these three persons shoes are wet.Then he went back to the safe and saw some water near it.Suddenly he pointed to one of the three persons. Its you! he shouted.It cant be. because.It may/could/migtht be. because.Oh, it must be. because. 1. What

25、can you see in the picture？ 2. What can we know about the woman?Answer the two questions:She is a little frightened and confused.There is a woman looking out of the window. 3. Where is the article from? Its a newspaper article. 4. What is the passage about? The passage is about strange events in Bel

26、l Tower neighborhood. 5. What is the strange thing? What do the people think of it? A local school teacher called Zhou Gu heard strange noises outside his window every night. His wife thinks that it could be an animal. His friends and he think it must be teenagers having fun. The police think it might be the win