现在进行时和过去进行时ppt课件.ppt

现在进行时和过去进行时,The Present Continuous Tense,马海霞,and the past Continuous Tense,She,read,is,ing,now.,He,eat,is,ing,now.,Listen!,The bird,is,sing,ing.,Look!,The boy,is,play football.,ing,They,dance,are,now.,ing,知识要点：,一.现在进行时的定义:,现在进行时是表示现在、说话瞬间或当前一直正在做着的动作.,Eg:Jenny is watching TV now.I am writing.,二.现在进行时的谓语结构:,现在进行时的谓语结构为:am/is/are+动词的现在分词 am/is/are 在现在进行时句子谓语结构中作助动词用，无词义。am/is/are的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 movie.,四.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，将句中的be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be动词后面加上not.Eg:He is talking to his teacher He isnt talking to 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：,（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)They to go to the shop now.(want)(5)you for your friends?(wait)No,Im not.,is talking,am not playing,is watching,want,Are,waiting,Exercises:,(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.(rain)(10)Why are you standing here,Dave？I for Lilei.(wait),is sleeping,are having,is raining,am waiting,is writing,1.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 yesterday.5.They were having a class yesterday afternoon.,1.意义：,2.构成：,3.标志词：,表示在过去某一时刻或一段时间正在进行的动作。,was/were+doing,否定式：,was/were not+doing,疑问式：,Was/Were doing?,at this time yesterday at 9:00 last night was/were doing when.did.,一 用所给动词的适当形式填空1What _ you _(do)at noon yesterday?2)I _(watch)TV when my mother_(come)in.3)He _(do)his lessons at ten yesterday morning.,were,doing,was watching,came,was doing,4)The children _(play)football at four yesterday afternoon.5)The baby _(sleep)when the mother came back.,was sleeping,were playing,二.完成下列句子1）Li Lei _(在读英语）at this time yesterday.,was reading,2)They _(在扫地）after school yesterday.3）The boys and girls_(在唱歌）last night.4)You _（在打篮球）yesterday afternoon,werent you?5)What _ To_(在做什么）at noon yesterday?,were sweeping the floor,were singing,were playing basketball,was,doing,Thank you!,