1、 Unit 1Period 3morningafternooneveningnightGood morning!Good afternoon!Good evening!Good night!早上好早上好!下午好下午好!晚上好晚上好!晚安晚安!(B)Good afternoon,Frank!Good afternoon,Eric!DaleHelenGood morning,Dale!Good morning,Helen!Good evening,Bob!Good evening,Alice!4bListen again.Number the pictures(1-3)213Section BHo
2、w are you?Im fine,thanks.Im OK.Very well,thank you.Thanks =Thank youJust so so.Not bad.2.might/could 分别为分别为may和和can的一般过去时，分别表示过的一般过去时，分别表示过去的去的“许可许可、“可能可能和和“能力能力、“能够能够等。等。The children asked whether they could/might go for a swim.(过去许可过去许可)I was afraid it might rain that afternoon.(过去可能过去可能)He asked
3、if the news could be true.(过去可能过去可能)(Can the news be true?)She said he could speak several languages.(过去能力过去能力)I couldnt find her telephone number.(过去能够过去能够)(2)都可表示现在或将来的都可表示现在或将来的“可能性可能性。语气。语气没有没有may肯定。肯定。Theres someone at the door.It could/might(=may)be George.(肯定句肯定句)/It couldnt(=cant)be George.(
4、否认句否认句)/Could(=Can)it be George?(疑问句疑问句)According to the radio it could/might/may rain tomorrow.Lightning could(=can)be dangerous.(3)Might/Could I/we?Could you?表示更委婉表示更委婉、更、更客气的请求。客气的请求。Might/Could I ask you one more question?Yes,of course you may/might/can/could.Could you help me with these boxes?O
5、f course I can./With pleasure.有时在陈述句中也表示更委婉、更客气有时在陈述句中也表示更委婉、更客气的请求或邀请：的请求或邀请：I wonder if I could/might leave now.I dont suppose you could/might.3.can/be able to can=am/is/are able to =shall/will be able to No one can do it.=No one is able to do it.Can you come tonight?=Will you be able to come toni
6、ght?(2)could 表示过去的技能表示过去的技能、本能、本能;was/were able to 表示过去某一具体场合经过努力而表示过去某一具体场合经过努力而做成某事做成某事。I could swim when I was six.He started late,but he was able to catch the eight oclock train.=but he managed to catch =but he succeeded in catching But:Mr.Smith couldnt/wasnt able to see you because hes got a ba
7、d cold.(3)be able to还有完成式和非谓语形式还有完成式和非谓语形式。Im sorry I havent been able to answer your letter.=Im sorry for not being able to answer your letter.To be able to run is very important for a footballer.4.have to的意思是的意思是“必须、不得不必须、不得不,往往往往 强调由于客观原因而必须做某事。强调由于客观原因而必须做某事。have to 后接动词原形；后接动词原形；have to有人称、有人称、
8、数和时态的变化数和时态的变化,其第三人称单数形式为其第三人称单数形式为 has to,其疑问形式和否认形式要借助于其疑问形式和否认形式要借助于 助动词助动词do或或does来完成。例如：来完成。例如：We have to look after our sister at home.我们不得不在家照顾我们的妹妹。我们不得不在家照顾我们的妹妹。Does he have to get up early tomorrow morning?明天早上他必须早起吗？明天早上他必须早起吗？I dont have to stay at home today.今天我不必呆在家里。今天我不必呆在家里。情态动词情态动
9、词“have to与其他的情态动词与其他的情态动词如如“can,“may“must和和“should 不同。不同。1)这这4个情态动词没有人称的变化个情态动词没有人称的变化,而而have to有有,它的第三人称单数它的第三人称单数 为为“has to 如：如：He should study hard.He has to study hard.2)这这4个情态动词在一般疑问句中将它们放个情态动词在一般疑问句中将它们放 在句首在句首,在否认句中直接在他们后边加在否认句中直接在他们后边加not即可。即可。我们以我们以can为例为例:-Can he go with us?他能和我们一起去吗？他能和我们
10、一起去吗？-He cant go with us.他不能和我们一起去。他不能和我们一起去。而而“have to要加助动词要加助动词do,does或或did才才可能完成其疑问句、否认句。可能完成其疑问句、否认句。5.must/have to must 表示主观表示主观“必须必须；have to表示客观客观表示客观客观需要，即需要，即“不得不不得不。I dont like this TV set.I must buy a new one.This TV set doesnt work.We have to buy a new one.(now)You must get up at five tom
11、orrow.We(will)have to get up early tomorrow were going to Devon.(future)I had to leave early because I wasnt feeling well.She said she must/had to see the manager.(past)表示邀请的句型表示邀请的句型:(你能来参加我的聚会吗你能来参加我的聚会吗?)Can you come to my party?Could you come to my party?Would you like to come to my party?接受邀请接受
12、邀请:拒绝邀请拒绝邀请:Sure,Id love/like to.Im sorry,I cant.I have to/Im V-ingExercise 一、选择正确的词一、选择正确的词 Thank you for (ask/asking),but I cant go to the movies with you.Paul has to study (at/for)the math test tonight.My sister has too (much/many)homework to do.askingformuch4.Can you come to my party (at/on)Satu
13、rday night?5.She invites me (watch/to watch)the basketball match the day after tomorrow.6.I like playing (piano/the piano).onto watchthe piano二二.对话填空。每空一词，单词的首字母已给出。对话填空。每空一词，单词的首字母已给出。A:Hey,Xiao Wang,can you go to the m_ on Saturday?B:Im s_,I cant.I have too much h_ this weekend.And Im not f_ _ wel
14、l today.A:Thats too b_.Whats the matter?ovies orryomeworkad eelingB:Im not sure.Maybe I have a c_,as Im feeling a little cold.A:I think youd b_ go to the d_.B:I also t_ so.A:Maybe Im asking you to come another time.B:Sure.T_ for asking.old etter octor hink hanks 三、选择题三、选择题1.Can you play tennis with
15、on Saturday?A.us B.we C.our D.ours2.Henry his homework this afternoon.A.have to do B.have to doing C.has to do D.has to doing3.Tony is playing tennis the school team.A.on B.in C.to D.with4.Jim play soccer with his friend this weekend,because he is very busy.A.can B.cans C.cannt D.cantACBD5.-?-Its Oc
16、tober the 14th.A.When is today B.whats today C.What time is today D.What day is today6.He is with his father the whole day.A.fish B.fishes C.to fish D.fishingBD7.Can you come to my party?-.A:Sure,I love B:Sure,I love to C:Sure,Id love to D:Sure,Id love.C8.-Would you like to play football with us?-_,
17、but Im busy.A.No,I cant B.No,I wouldnt C.Yes,Im glad D.Yes,Id love to 9.-_I take the newspaper away?-No,you mustnt.You _ read it only here.A.Must;can B.May;can C.Need;must D.Must;must ABIts a Birthday PartyIts a Birthday Party Friday,June30,at four hirtyFriday,June30,at four hirtyLisas house,15Lisas house,15th th Street StreetCome and have fun!Come and have fun!For whom:For whom:Time:Time:Place:Place:LisaLisaHomework Write an invitation based on the following information.
