现在进行时和过去进行时ppt课件.ppt

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1、 现在进行时和过现在进行时和过去进行时去进行时 The Present Continuous Tense 马海霞马海霞 and the past Continuous TenseShe readisingnow.He eatisingnow.Listen! The bird is singing.Look! The boy is play football. ingThey dancearenow.ing知识要点：知识要点：一一.现在现在进行进行时的定义时的定义: 现在进行时是表示现在、现在进行时是表示现在、说话瞬间或当前一直正在说话瞬间或当前一直正在做着的动作做着的动作.Eg: Jenny

2、is watching TV now. I am writing.二二.现在进行时的谓语结构现在进行时的谓语结构: 现在进行时的谓语结构为现在进行时的谓语结构为: am/is/are +动词的现在分词动词的现在分词 am/is/are 在现在进行时句子谓语结在现在进行时句子谓语结构中作助动词用，无词义。构中作助动词用，无词义。am/is/are的的选择运用由句子的主语人称或数决定。选择运用由句子的主语人称或数决定。A: I am watching TV at home.B: Dave is cleaning the floor.C: The students are seeing a movi

3、e.四四.现在进行时的形式转换：现在进行时的形式转换： 1.将一个现在进行时的肯定句变为一般疑问句时，将句将一个现在进行时的肯定句变为一般疑问句时，将句中的中的be动词提到句首。动词提到句首。Eg: He is talking to his teacher. Is he talking to his teacher? I am singing.- Are you singing? 2.将现在进行时的肯定句变为否定句时，在将现在进行时的肯定句变为否定句时，在be动词后动词后面加上面加上not. Eg: He is talking to his teacher He isnt talking to

4、 his teacher. The children are eating some apples at my home. The children arent eating any apples at my home.Exercises:根据句意，用所给动词的适当形式填空根据句意，用所给动词的适当形式填空：（1）Listen!Mr Wu on the phone. (talk). (2) I football now. Im walking .(not play) (3) Is your father at home? Yes ,he is .He a TV show .(watch) (4

5、)They to go to the shop now. (want ) (5) you for your friends? (wait) No, Im not.is talkingam not playingis watchingwantAre waitingExercises: (6 )He is very busy . He a letter .(write)（7）Dont speak! My father .(sleep) (8) Its twelve oclock. The students (have) lunch. (9 )Dont go out! It outside. (ra

6、in) (10)Why are you standing here , Dave？ I for Lilei .(wait) is sleepingare havingis rainingam waitingis writing1.He was cooking at this time yesterday.2.He was riding a horse at nine last Sunday.3.He was playing football at four oclock last Friday.4.She was cleaning the classroom this time yesterd

7、ay.5.They were having a class yesterday afternoon.1.意义意义：2.构成构成：3.标志词：标志词：表示在过去某一时刻或一段时表示在过去某一时刻或一段时间正在进行的动作。间正在进行的动作。was/were +doing否定式否定式：was/were not +doing疑问式：疑问式：Was/Were doing?at this time yesterday at 9:00 last night was/were doing when.did.一一 用所给动词的适当形式填空用所给动词的适当形式填空1What _ you _ (do) at noo

8、n yesterday?2)I _(watch) TV when my mother_ (come) in.3) He _(do) his lessons at ten yesterday morning.weredoingwas watchingcame was doing 4) The children _(play) football at four yesterday afternoon. 5) The baby _ (sleep) when the mother came back.was sleepingwere playing二二. 完成下列句子完成下列句子1）Li Lei _(在读英语）在读英语）at this time yesterday.was reading 2) They _ (在扫地）在扫地）after school yesterday.3）The boys and girls_(在唱歌）在唱歌） last night.4)You _（在打篮球）（在打篮球）yesterday afternoon, werent you?5) What _ To_(在做什么）在做什么）at noon yesterday?were sweeping the floorwere singingwere playing basketball wasdoing