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1、,UNIT 3 Could you please clean your room ?,导课练习：请观察一下句子，分析情态动词的意义,Can I use your pen?-Yes , you can./No, you cant . May I come in , please ? -Yes , you can./No, you cant . Could I go out for dinner with my friends ?-Yes , you can./No , you cant.,情态动词：Can, May , Could 的用法,1.共同点：三者均可表示请求，允许。意思为：”可以吗？”
2、 2.不同点： CAN表示请求或允许，多用于口语中，意为“可以、能”等。 如：Can I help you ? May表示“许可、准许、请求许可”，此时与 can 同义，可以互换使用 如：May I use your ruler ? Sure ,/Certianly . /Yes , please. No, you mustnt /No , you cant . 注意：否定回答不能说成No, you may not .,本单元里，Could 的具体用法,Could用于有礼貌地提出要求或请求准许，用于疑问句，代替Can.在时间上与can没区别，但语气要比can委婉，有礼貌。回答时候要用can ,
3、 不能用could .除此之外，肯定回答还可以用Sure /Certianly/Yes , sure ./No problem ./With pleasure .等。否定回答还可以用Im afraid not . .,例句,如：1.Could you please lend me your pen ? -Yes , here you are ./No, you cant . 2.Could I use your phone ? -No problem ./ Oh, I m afraid not,Could 的其他几种用法：,1.Could 作为can的过去式，表示过去的能力。 2.表示惊讶，怀
4、疑，不相信等态度，主要用于否定句或者疑问句，此时could 与can无时间上的区别，但语气比can缓和，情绪要弱。 3.表示可能性，只对将来，现在后者过去某种可能的推测 4，用于虚拟语气。,Section A 1a,Can you help mom do the chores？ 1.Do the dishes,Sweep the floor,Take out the rubbish,Make the bed,Fold the clothes,Clean the living room,Work on 与work out,Work on正在使用从事于 Im going to work on it
5、 now . Work out 算出，制定出 He work on the maths problem last night,but didnt work it out.,A few,finish,Finish doing sth . 做完某事 Do you finish washing your clothes ? Pretty pretty英 prt 美 prti adj. 漂亮的；机灵的，聪明的 adv. 相当，颇 n. 漂亮的人（或东西) 1.She must be a pretty girl . 2.This house is pretty tidy ! 3.Look at the
6、pretty !,3b Read the sentences.Underlinethe sentences from the reading the the same thing. 1 Neither of us did any housework for a week. =For one week,she didnt do any housework and neither did I. 2 My mom came over as soon as I sat down in front of the TV. =The minute I sat down in front of the TV,
7、my mom came over. 3 You re tired ,but Im tired ,too. = Im just as tired as you are.,3. For one week ,I didnt do any housework and neither did I. neither did I 倒装句。例如 He doesnt like the book , neither do I. neither does Mary. neither do we. neither do they. Li Lei cant dance , neither can I. neither
8、can Mary. neither can we.,Neither of 是both of 的否定句 Both of my parents are teathers .（否定句） Neither of my parents is a teacher .,比较下列词组 1. To ones surprise让某人惊讶的是 To Mr Lis surprise,his students found the key on time. 2. Be surprised 感到惊讶 I was surprised when I heard the surprising news. In surprise 惊
9、讶地 He looked at me in surprise.,Section B 1 1a-2e,单项选择。 1. - Could you please take care of my dog? - _. Im too busy. A. Yes, you can B. Sure C. Sorry, I cant,C,2. - Could you please _ his bed? - Certainly! A. makes B. making C. make 3. - Could I use your car? - _. A. Sure, you can B. Sorry, you can
10、C. Sure, I can,C,A,Q1: Do you help your parents do the chores at home? Q2: Do you ask your parents permission for? Q3: Do your parents ask you to do some things for them?,What do your parents ask you to do?,study hard,do chores,go to the store /supermarket to buy things for them,What do you ask your
11、 parents permission for?,buy drinks and snacks,invite friends to a party,n.点心; 小吃; 快餐,1. buy some drinks and snacks 2. borrow some money 3. clean your room 4. invite my friends to a party 5. go to the store 6. use your CD player 7. take out the rubbish 8. make your bed,teenagers,teenagers,teenagers,
12、parents,teenagers,parents,parents,teenagers,1a What do teenagers ask their parents permission for? What do parents ask their teenagers to do? Write parents or teenagers next to each phrase,Parent: Could you clean your room? Child: Yes, I can.,Use the phrases in 1a to make conversations.,1b,Child: Co
13、uld I invite my friends to a party? Parent: No, you cant have a party. You have a test on Monday.,clean your room,take out the rubbish,make your bed buy some drinks and snacks borrow some money,Pair work,Parent: Could you please? Child: Yes, sure. / Sorry, I cant. I have to .,invite my friends to a
14、party go to the store use your CD player,1. buy some drinks and snacks 2. borrow some money 3. clean your room 4. invite my friends to a party 5. go to the store 6. use your CD player 7. take out the rubbish 8. make your bed,Listen to a conversation between Sandy and her mom. Check ( ) the things in
15、 1a that you hear.,1c,Listen again. Fill in the chart.,1d,buy some drinks and snacks,move the big chairs to the bedroom clean the living room,borrow some money,clean her room,use her moms CD player,You are having a party. Ask your partner for help with these things:,1e,go to the store buy drinks and snacks do the dishes clean the living room take out the rubbish,A: Could you please do the dishes? B: Yes, sure./No, I cant. I have to do,Discuss the questions with your partner.,1. What do you often do to help your parents at home? 2. Do you think kids should help out
