英语人教版八年级下册unit 3 Grammar focus.ppt
教师：唐教师：唐 艳艳Unit 3Could you please clean your room?Section A Grammar focus-4c叠衣服叠衣服做菜做菜用某人的电脑用某人的电脑扔垃圾扔垃圾铺床铺床扫地扫地在外面呆到很晚在外面呆到很晚生某人的气生某人的气带带出去散步出去散步根据所学内容，写出下列短语。根据所学内容，写出下列短语。fold the clothesdo the dishesuse ones computertake out the rubbish make the bedsweep the floorstay out latebe angry with sb.take sb.for a walk打扫客厅打扫客厅 在在上工作上工作过来过来做家务做家务搭车搭车clean the living roomwork oncome over do the houseworkget a ride阅读下列句子，观察问句的用法及回答。阅读下列句子，观察问句的用法及回答。Key sentence structures Could you（please）+V-原形原形？表示委婉地提出请求表示委婉地提出请求1.Could you please clean your room?Yes,sure./Of course./Certainly./All right.2.Could you please do the dishes?Sorry,I cant.I have to do my homework.Peter,could you please take out the trash?Sure,Mom.Could you please do the dishes?Sorry,I cant.I have to do my homework.在表示请求帮助或请求允许的疑问在表示请求帮助或请求允许的疑问句中，常用句中，常用could代替代替can，以表示礼貌，以表示礼貌，委婉或不确定的语气，而委婉或不确定的语气，而can则不具备这则不具备这些语气。这种情况下不能把些语气。这种情况下不能把could看作看作can的过去式。以上两句中用的过去式。以上两句中用could是为了表是为了表示礼貌的请求。表示请求帮助或请求允示礼貌的请求。表示请求帮助或请求允许时，除了许时，除了can,could之外，还可以用之外，还可以用may，句子的表达方式也各有不同，可以，句子的表达方式也各有不同，可以用不同的方式来表示同一个概念。例：用不同的方式来表示同一个概念。例：Could/Can/May I use your car for a day?I wonder if I could use your car for a day?对于对于、句所作允答可以各种各样，如同句所作允答可以各种各样，如同意可以说意可以说Yes或或Sure或或Certainly，还可说，还可说Yes,(do)please.或或Of course.(you may/can).或或Go ahead,please.或或Thats OK/all right;如果如果不同意，可以说不同意，可以说Im sorry you cant.或或Im really sorry,but I have to use it today.要避免要避免说说No,you cant.这样显得很不礼貌。否定回这样显得很不礼貌。否定回答通常用委婉语气。答通常用委婉语气。Do you mind if I use your car for a day?对于句对于句所作回答可以说所作回答可以说Never mind./Not at all.表表“不介意不介意”。不能用。不能用Yes./Sure./Of course./Certainly.等。无论肯定还是否定应等。无论肯定还是否定应答中，要避免使用答中，要避免使用could，要用，要用can或或may。因为应答须用确定的语气。而因为应答须用确定的语气。而could在表请在表请求的问句中是为了表示礼貌或委婉语气，用求的问句中是为了表示礼貌或委婉语气，用在应答中则成了不确定语气，与情理不符。在应答中则成了不确定语气，与情理不符。所以应答中不说所以应答中不说Yes,you could.或或No,you couldnt.而要说而要说Yes,you can.或或Sorry./No,you cant.Could I please use your computer?Sorry,Im going to work on it now.Well,could I watch TV?Yes,you can.Could I/you please？表示一种有礼？表示一种有礼貌的请求或提议，其后连接原形动词，貌的请求或提议，其后连接原形动词，比比Can you/I？语气更委婉。类似？语气更委婉。类似句型有：句型有：Would you like+sth./to do sth.?May I+do sth.?Shall we+do sth.?Would you mind+sth./doing sth.?What/How about+sth./doing sth.?肯定回答有肯定回答有Sure./Of course./Certainly./OK./Great./Well./Good idea./I agree.等。否定回答有等。否定回答有Sorry/No,you cant.等。等。Make up dialogues using the sentences in Grammar Focus with your partner.A:Could you please take the dog for a walk?B:OK,but I want to watch one show first.daceb4b Fill in the blanks in the conversation.A:I hate to _ chores.B:Well,I hate some chores too,but I like other chores.A:Really?Great!_ I ask you to _ me with some chores then?B:What do you need help with?A:_ you please _ my clothes for me?B:I dont want to do that!Its boring!doCould helpCould foldA:OK.Then _ you _ do the dishes for me?B:Sure,no problem.But _ we go to the movies after that?A:Sure.Ill finish my homework while you help me with the dishes.Then we can go to the movies.could pleasecould hate用作动词，与用作动词，与like意义相反，意为意义相反，意为“憎恨，厌恶，不喜欢憎恨，厌恶，不喜欢”，其后可接名词、，其后可接名词、代词、动词的代词、动词的-ing形式以及动词不定式等。形式以及动词不定式等。e.g.Lily hates mice/them.Jim hated exercising when he was young.I hate to do the laundry now.If we are having a camping trip,what should we do before the trip?What should we do before the trip?take a big cloth bring a tenttake an umbrellatake a rubbish bag buy some drinksbuy some foodbring a cameraprepare some programs4c Make a list of things your group needs to do for a camping trip.Then discuss who will do them and complete the chart.A:Could you please bring a tent,Liu Chang?B:Sure.And could you please?C:Sorry,I cant.I have to Homework:1.Review what we have learned.2.Read the words.
