七年级现在进行时讲解精选ppt.ppt
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1、,现在进行时态,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.,现在进行时的谓语结构:,现在进行时的谓语结构是:am/is/are+现在分词。Am/is/are 在现在进行时句子中的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或数决定。A:I am watching TV at home.B:Dave is cleaning the floor.C:The students are seeing a movie.,现在分词的构成:1.直接加 ing eg:l
2、ook looking.2.如果动词末尾有不发音的e,则去e 加 ing.3.以重读闭音节结尾,且末尾只有一个辅音字母,应双写末尾字母,再加 ing.eg:sit sitting.4.以ie结尾,把ie变y加ing。lie-lying die-dying tie-tying,口诀教你学doing 进行时很好记,be加动词-ing;直加双写去哑e,分词构成须仔细;别说 be 词无词义,主语和它最亲密;变疑问 be 提前,否定 not 再 后添;何时要用进行时 look,listen,now标志.,写出下列动词的现在分词形式.1.help _ e _3.swim _ 4.eat _5.give _
3、 6.find _7.sit _ 8.write _,helping coming swimming eatinggiving findingsitting writing,写出下列动词的分词形式 talk _ sleep _ watch _ sit _ listen _ make _ laugh _ lie _ cry _ sing _ cut _ write _,talking sleeping watching sitting listening making laughing lying crying singing cutting writing,1.含义:表示现在正在进行或一 段时
4、间正在进行的动作。2.标志词:now,look,listen等。3.构成:be+V-ing,现在进行时的含义与构成,He is reading a book.,现在进行时的判断:,(1)一般句中用到“在现在”的时间状语时,如:now,right now,at the moment或Its+几点钟 句型,常判断用现在进行时。Lets go fast.Mr.Wu is waiting for us now.Its six oclock.The children are playing basketball.(2)句中用到“Listen!”“Look!”“Keep quiet”“Dont make
5、noise!”等提示语时,表明说话间另一个动作正在进行,这时,句子也要用现在进行时。Eg:Keep quiet!The teachers are talking in the office.,(3)现在进行时常用来表示在当前一直做着的动词,这时句中常用these days,all the time等时间状语。Eg:These days,Uncle Wang is building a small room for his dog.(4)通过上下文句义,表明某一动作是现在或说话瞬间发生的动作,这个句子也要用现在进行时态。Eg:Is your mother at home?Yes,she is.s
6、he is watching TV.Where is Tom?He is running on the playground.,(5).对于无法持续动作的词,一般常用现在进行时表示将来。如:Go come leave start arrive move 等。Eg:We are leaving on Friday.Im coming.,He is running.,She is dancing.,It is jumping.,They are running.,2.否定句:直接在be后加not.如:I am writing.I am not writing.,现在进行时的句式,1.肯定句:主语+
7、be+v-ing+其它.如:I am reading a book.,He isnt standing.,She isnt running.,It isnt singing.,They arent eating.,3.一般疑问句及回答:注意:第一人称要变第二人称 问句:有be,直接把be提前。肯定回答:Yes,主语+be 否定回答:No,主语+be+not-Im drawing.-Are you drawing?-Yes,I am./No,Im not.,He is playing basketball.,Is he playing basketball?,Yes,he is./No,he i
8、snt.,结构:be+doing(be要根据主语作人称和数的变化)句型转换 1.肯定句 否定句,要在 be 后加 not 构成 eg:We are reading English now.We are not reading English now.2.陈述句 一般疑问句,把be动词提到句首 eg:The student is drinking.Is the student drinking?3.陈述句 特殊疑问句,由“疑问词+一般疑问句”构成 eg:He is working.What is he doing?,The present continuous tense 现在进行时,基本用法
9、1.表示现在正在进行的动作和发生的事 eg:-What are you doing?-I am reading a book.2.有时表示现阶段正发生的事,但此刻动作不一正在进行 eg:He is teaching at the school.We are learning Unit5 these days.3.现在进行时的句子中常有now,或在句首常出现Look!Listen!等提示词 eg:Listen!Danny is singing in the room.He is doing his homework now.,What is the boy doing?He is singing
10、.,-Is the woman writing?-No,she isnt.She is reading a book.,-Whatre they doing?,-Theyre swimming.,-Are they swimming?,-Yes,they are.,-Are they singing?-No,they arent.They arent singing.They are dancing.,Are they _a book?No,they _._ are they_?Theyre _.,reading,arent,What,doing,writing,Is the girl _(g
11、et)up?No,she _.What _ she _?She _ _.,getting,isnt,is,doing,is sleeping,达标训练,一.用所给动词的适当形式填空.1.Look!The cat_(run)up the tree.2.The twins_(have)breakfast.3.-_he _(clean)the blackboard?-No,he isnt.4.Tom_(play)the piano in the room.Please ask him to come here.5.Listen!They_(sing)in the classroom.,is runn
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