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1、会计学1仁爱英语八年级下学期仁爱英语八年级下学期UnittopicsectionAglad to do sth.很高兴做某事很高兴做某事be busy doing sth.忙于做某事忙于做某事prepare for 准备准备be on vacation 在假期在假期would like sb.to do sth.想某人，做某事。想某人，做某事。look forward to doing sth.期望做某事期望做某事make a plan to 制定计划做某事制定计划做某事Plan a trip 制定旅行计划制定旅行计划Come along with 跟着来，跟随跟着来，跟随第1页/共23页Wh
2、enWhen与与WhileWhile的区的区别别第2页/共23页n nwhen 和和while的用法区别的用法区别 n nwhen是是at or during the time that,既指时间点，也可指一段时既指时间点，也可指一段时间；间；while是是during the time that，只指一段时间，因此只指一段时间，因此when引导的引导的时间状语从句中的动词可以是时间状语从句中的动词可以是终终止性动词，也可以是延续性动词止性动词，也可以是延续性动词，而而while从句中的动词必须是从句中的动词必须是延续延续性动词性动词。n nwhen 说明从句的动作和主句的说明从句的动作和主句
3、的动作动作可以是同时，也可以是先后可以是同时，也可以是先后发生发生；while 则强调主句的动作在则强调主句的动作在从句动作的发生的过程中或主从从句动作的发生的过程中或主从句两个动作句两个动作同时发生同时发生。第3页/共23页1.Tom was singing while Maria was dancing.2.She was writing when I came in.3.I came in when/while she was writing.While 引导的从句，谓语动词常是延续性的，并常用进行时进行时。when/while 意为意为“当当时候时候”，引导的是时间，引导的是时间状语从
4、句状语从句learn,work,walk,keep,have,wait,watch,sing,read,sleep,live,stay 延续性动词延续性动词 和时间段连用和时间段连用第4页/共23页1.I was just reading a book when she came into my room.这句话当中的这句话当中的came可以换成可以换成was coming吗？为什么？吗？为什么？不能，因为不能，因为come是非延续性动词，无进行时态。是非延续性动词，无进行时态。2.Were you writing when the teacher came in?While/when Jim
5、 was mending his bike,Lin Tao came to see him.从这两个例子当中可以总结出从这两个例子当中可以总结出_后面必须跟延续性动词，后面必须跟延续性动词，_后面既可以跟延续性动词也可跟非延续性动词。后面既可以跟延续性动词也可跟非延续性动词。open,die,close,begin,finish,come,go,move,borrow,lend,buy 非延续性动词非延续性动词 和时间点连用和时间点连用whilewhenWhen 引导的从句，谓语动词既可以是短暂性的，也可以是延续性的。第5页/共23页singing&playing basketballZhou
6、jielun is singing.Yaoming is playing basketball.Zhoujielun is singing while Yaoming is playing basketball.Yaoming is playing basketballwhile Zhoujielun is singing.第6页/共23页riding a bicycle&riding a horseThe girl is riding a bicycle The boy is riding a horse.The girl is riding a bicycle while the boy
7、is riding a horse.The boy is riding a horse while the girl is riding a bicycle.第7页/共23页have a classclimb a mountainDarren was having a class.Michael was climbing a mountain.Darren was having a classwhile Michael was climbing a mountian.Michael was climbing a mountainwhile Darren was having a class.第
8、8页/共23页Make sentences after the example according to the pictures，using“while”or“when”.Example:Darren was having a class while Michael was climbing a mountain.Michael was climbing a mountain while Darren was having a class.have a class/climb a mountaincook/play computer gamesrun/swimdance/sing第9页/共2
9、3页n nwatch TV eat a humbergern nlisten to music play footballn nplay the piano play basketballn nfly a kite .n nread a bookn nrunn nswim第10页/共23页reading&came inWhat was Darren doing when Michael came in?Darren was reading Renai English Post.Darren was reading Renai English Post when Michael came in.
10、Michael came in when/while Darren was reading Renai English Post.第11页/共23页listening to music&came inWhat was Lily doing when Michael came in?Lily was _.Lily was_when Michael came in.Michael came in when/while Lily was _.listening to musiclistening to musiclistening to music第12页/共23页watching TV&came
11、inWhat was the dog doing when Michael came in?The dog was _.The dog was_when Michael came in.Michael came in when/while the dog was _.watching TVwatching TVwatching TV第13页/共23页reading/come inraining/arrivering/watching TVknock at/writingExample:Darren was reading Renai English Post when Michael came
12、 in.Michael came in when/while Darren was reading Renai English Post.第14页/共23页raining/arriveIt was raining when Darren arrived at the train station.Darren arrived at the train station when/while it was raining.第15页/共23页The boy was watching TV when telephong rang.The telephone rangwhen/while the boy
13、was watching TV.ring/watching TV第16页/共23页They were writingwhen Michael knocked at the door.Michael knocked at the doorwhen/while they were writing.knock at/writing第17页/共23页n nwatch TV get upn nlisten to music open the doorn nplay the piano come inn nfly a kite .n nread a bookn nrunn nswim持续性动词持续性动词短
14、暂性动词短暂性动词第18页/共23页while/whenn nDarren Darren was was having a classhaving a class while while Michael Michael was was climbing a mountainclimbing a mountain.n nMichaelMichael was climbing a mountain was climbing a mountain while while Darren Darren was having a classwas having a class.n nDarren Darr
15、en was reading Renai English Postwas reading Renai English Post whenwhen Michael Michael came incame in.n nMichael Michael came incame in when/while when/while Darren Darren was reading Renai English Postwas reading Renai English Post.n n.第19页/共23页1.While they_,the bell rang.(talk)2._ I was doing my
16、 homework,my mother came back home yesterday.3.While he _ (write),I _(do)my homework.were talkingWhen/Whilewas writingwas doingwhen,while引导的时间状语从句主句和从句分别引导的时间状语从句主句和从句分别使用什么时态呢？使用什么时态呢？_ when _ while_主句主句从句从句主句主句从句从句进行时态进行时态一般时态一般时态一般一般/进行时态进行时态进行时态进行时态主句是将要发生的动作时，主句是将要发生的动作时，从句用一般现在时！从句用一般现在时！（主将从现
17、）（主将从现）第20页/共23页n n用用whilewhile与与when when 填空填空n n1_I got home,he was having supper.1_I got home,he was having supper.n n2 _I was young,I liked dancing.2 _I was young,I liked dancing.n n3 _I slept,a thief broke in.3 _I slept,a thief broke in.n n4 _he came yesterday,we were playing 4 _he came yesterd
18、ay,we were playing basketball.basketball.n n5._we were still laughing,the teacher came in.5._we were still laughing,the teacher came in.n n6He came just_I reached the door.6He came just_I reached the door.n n7Mary was on her way home_two big boys 7Mary was on her way home_two big boys stopped her.st
19、opped her.n n8_ he was eating his breakfast8_ he was eating his breakfast，he heard the he heard the door bell ring.door bell ring.n n10.I was cooking dinner _he was playing the 10.I was cooking dinner _he was playing the pianopianoWhenWhen/WhileWhenWhenWhenwhenwhenWhen/Whilewhile第21页/共23页Listen to t
20、he conversation and choose the correct answers.41.Dianas perfect holiday activity is _.2.Diana and Lily should _ for the holiday.3.Where do they decide to go finally?A.ridingB.camping C.fishingA.learn to swim in the sea.B.know more about camping C.work out the cost carefully算出，解决算出，解决to find out the answer or to solve sth.A.Go to the seaside.B.Camp in the forest.C.We dont know.第22页/共23页