1、R八年级上册Unit 2 Home Sweet Home第3课时（Section A 3a-3c）Review and fillWhat children want to doWhat parents want them to dohang out with friends after lunch sort things into boxeskeep some fishtake care of them every dayhelp me hang up the photosgrow some flowerssweep the floorinvite friends to our new hou
2、sehelp me clean up the roomhelp put the new clock on the wallmove this chair to their roomput some flowers by the windowtake me to the flower shop laterWhat children want to doWhat parents want them to doDo you still remember how they start the conversation?hang out with friends after lunch sort thi
3、ngs into boxeskeep some fishtake care of them every dayhelp me hang up the photosgrow some flowerssweep the floorinvite friends to our new househelp me clean up the roomhelp put the new clock on the wallmove this chair to their roomput some flowers by the windowtake me to the flower shop laterCan/Co
4、uld I do?Can/Could you(please)do?Ask for permission.（征求许可）Make polite requests.（礼貌地请求）Could you please sweep the floor?OK,Mum.Ill do it at once.Could I hang out with my friends after lunch?Sorry,Jim,but you have to pack up your things first.Can I put some flowers on the table?Yes,good idea!Can you h
5、elp me hang up the photos?Sure./No problem!3aRead the questions with can or could.Notice how they are answered.Then write R for requests or P for permission next to each question.RPPRat once 立刻，马上Can/Could表请求/允许的用法 情态动词can/could构成的句型可用于向对方委婉地提出请求或征求对方的许可。它们本身不能作谓语，只能和动词原形一起构成谓语。1.用于委婉地请求别人做某事常用句型 Co
6、uld you(please)do sth?Can you do sth?肯定答语 OK./Certainly./Of course./With pleasure./No problem./Yes,sure./否定答语 Sorry,I cant.I have to/Im afraid not./Im afraid I cant.I have to/Could you sort these things into boxes?你能把这些东西分类装进箱子吗？Yes,sure.好的，当然可以。Can you clean the bathroom?你能打扫浴室吗？Sorry,I cant.I have
7、 to do my homework now.抱歉，我不能。我现在必须做家庭作业。常用句型 Can/Could I do sth?肯定答语 Yes,good idea./Yes,you can./Certainly./Yes,please./否定答语 Sorry,you cant./Im afraid you cant./2.用于委婉地请求别人允许自己做某事 Could I go to the movies?我可以去看电影吗？Yes,you can.是的，你可以。Can I open the door?我可以开门吗？Im afraid you cant.Its too cold!恐怕不行。天太
8、冷了！无论是“Could you(please).?”还是“Could I.?”，问句中的 could 都可用 can 来代替，但是could 更委婉。且答语中一般都避免使用 could 来回答。注 意could 的其他用法如下：(1)could 为 can 的过去式，表示能力。He could ride a bike at the age of five.他五岁时就会骑自行车了。拓 展(2)表示可能性，指对过去、现在或将来的某种可能的推测。The book could be Lilys because she likes reading books.那本书可能是莉莉的，因为她喜欢看书。(3)
9、表示建议。You could go there by bus.你可以乘公共汽车去那儿。1.My English is poor.Could you help me with it?_.A.Thank you B.Me,too C.No problem D.See you一、单项选择。语法精练2.Mom,could I surf the Internet after finishing my homework?_.Youd better go out for a walk.A.Go ahead B.Sorry,you cant C.Of course you can3._ you give me
10、 a hand?I cant move the box by myself.No problem.A.Could B.Should C.Must D.Need4.Helen,could you please water the flowers in my garden?_.They are so lovely.A.Thats too bad B.With pleasure C.Youre welcome D.Im afraid not1.Could you please _(take/taking)out the rubbish?2.David,my pen is broken._(Shoul
11、d/Could)I use yours?3._(Can/Could)you play basketball when you were in primary school?takeCould二、选词填空。Could4.Could you please sweep the floor,Jenny?Sorry,I _(cant/couldnt).Im doing my homework.5.Could I give away these books to the poor children,Dad?Sure,you _(can/could).cantcan3b Choose the best qu
12、estion to complete each conversation.A.Could you give me a ride to town now?B.Can I stay out until eleven?C.Mr Lake,can I use your toilet?D.Could I use your computer?1.A:_ B:Of course you can.Let me show you the way.Cuntil（介词&连词）到时；直到为止2.A:_ B:Yes,if you are careful with it.Dbe careful with 注意；当心同义短
13、语：be careful of/about 当心；留意Be careful with the glass.小心玻璃。A.Could you give me a ride to town now?B.Can I stay out until eleven?C.Mr Lake,can I use your toilet?D.Could I use your computer?3.A:_ B:No,you cant.You have a basketball game tomorrow,remember?You need a good rest.BA.Could you give me a ride
14、 to town now?B.Can I stay out until eleven?C.Mr Lake,can I use your toilet?D.Could I use your computer?A.Could you give me a ride to town now?B.Can I stay out until eleven?C.Mr Lake,can I use your toilet?D.Could I use your computer?4.A:Can I go to the movies?B:Of course.A:_ B:I cant.I have to do som
15、e work now.Amovie（名词）电影the movies 电影院；电影产业go to the movies 去看电影of course 当然，相当于sure或certainly，通常在对话中用作肯定回答。3c Make up conversations for each setting,using can or could.1.You are at your friends home.You want to call your parents,but your phone is dead._A:Can/Could I use your phone?dead（形容词）不运行的；死的_B
16、:Sure./Of course.2.You were sick at home yesterday.Your friend went to an English class and took notes.You want toknow more about the class._A:Can/Could I borrow your English notes?_B:Sure./Of course.Here you are.note（名词）笔记；记录；便条（动词）注意；指出take notes 做笔记3.You are holding a large box.It is difficult to
17、 open the door.Your neighbour comes._A:Can/Could you please open the door for me?Its+adj.+to do sth.做某事是的。it是形式主语，真正的主语是后面的动词不定式短语。Its important to follow the rules.遵守规则很重要。_B:OK,Ill do it at once.4.You and your classmates want to help clean up thecommunity.Ask your classmates to bring gloves and ru
18、bbish bags._A:Can you bring gloves and rubbish bags?community（名词）社区；社团_B:No problem!clean up 清扫rubbish（名词）垃圾take out the rubbish 倒垃圾rubbish bin 垃圾桶1.Can I stay out until eleven?我可以在外面待到十一点吗？Language points(1)（介词）到时；直到为止后接具体的时间。She worked until 10 p.m.yesterday.昨天她一直工作到晚上 10点。(2)（连词）到时；直到为止常用于引导时间状语从
19、句。I waited until they finished talking.我一直等到他们谈完为止。He didnt come out until the meeting was over.主句until引导的时间状语从句主句until引导的时间状语从句2.You and your classmates want to help clean up the community.你和同学们想要帮助清扫社区。clean up 清扫，是“动词+副词”型短语，当人称代词作宾语时，需要放在clean与up之间。The yard is full of rubbish.Lets clean it up.院子
20、里到处是垃圾。我们来清扫一下吧。School Cleaning Day is coming.If you are the leader of your group,make a schedule for the cleaning plan.NameDo whatA:Could you please,Tom?B:Sure.A:Could you please,Lucy?C:Sorry,I cant.I have toGroup workHomework1.Review the new words and phrases.2.Review the usage of could and can.3.Make up sentences to ask for permission and make polite requests.
