七年级现在进行时讲解精选ppt课件.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 in
2、g eg: look 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
3、 _ 4.eat _5.give _ 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,
4、1.含义:表示现在正在进行或一 段时间正在进行的动作。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!” “L
5、ook!” “Keep quiet” “Dont make 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:
6、Is your mother at home?Yes, she is .she 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
7、writing. I am not writing.,现在进行时的句式,1.肯定句: 主语+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 i
8、s playing basketball.,Is he playing basketball?,Yes, he is . / No, he isnt.,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
9、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 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! Dan
10、ny is singing in the room. He is doing his homework now.,What is the boy doing?He is singing.,-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
11、.,Are they _a book?No, they _._ are they_ ?Theyre _.,reading,arent,What,doing,writing,Is the girl _(get) 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
12、.Tom_(play)the piano in the room.Please ask him to come here.5.Listen! They_(sing)in the classroom.,is running,are having,Is,cleaning,is playing,are singing,汉译英1.我们正在看电视.2.他们正在打扫教室.3.汤姆正在吃早饭.4.那对双胞胎正在睡觉.,We are watching TV.,They are cleaning the classroom.,Tom is having breakfast.,The twins are slee
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