现在进行时和过去进行时的用法

1、学习必备欢迎下载现在进行时的讲解与练习一、概念：1、表示说话时正在进行的动作及行为。2、表示现阶段正在进行的动作。它的构成关键在于动词形式的变化。即I am + v-ing + .We / You / They /复数名词 + are + v-ing + .He / She/ It / 单数名词 + is + v-ing + .如：Im doing my homework now .我正在做家庭作业。(指说话 时正在发生的 动作)We are working on a farm these days .这些天我们在一家农场 劳动。(指 现阶段正在发生的动作)Look ! He is readi

2、ng .瞧，他正在看书。现在进行时是由助动词be的人称代词形式加现在分词构成。动词变现在分词的方法：情况力口 法例词一般情情况加-ingplay-playing,以不发音的字母 e结尾去e力口 -ingMake-making以重读闭音节结 尾，末尾只有一 个辅音字母双写末尾辅 音字母,再加-ingput putting swim swimming stop stopping shop shopping run running sit sitting get getting jog jogging、结构。现在进行时常有三种句型：(1)肯定式：主语+be+ v-ing +其它。如：He is pl

3、aying football .(2)否定式：主语+ be+ not + v-ing +其它。如：He is not ( isnt ) playing football .(3)疑问式：主要分一般疑问句和特殊疑问句两种句式。一般疑问句：Be +主语+ v-ing +其它？如：Is he playing football ?Yes , he is .( No , he isnt .)特殊疑问句：疑问词+ be +主语+ v-ing +其它？如：What is he doing ?他正在干什么？三、何时用现在进行时？分以下几种情况：(1)以Look !或Listen !开头的句子，提示我们说话时动

4、作正在进行，应用 现在进行时。如：Look ! The children are playing games over there .Listen ! Whos singing in the classroom ?(2)当句子中有now (现在)时，常表示说话时动作正在进行，这时也常用 现在进行时。如：We are reading English now学习必备欢迎下载(3)描述图片中的人物的动作时常用现在进行时，以示生动。如： Look at the picture . The girl is swimming .(4)有时句子中可能没有时间状语，但如果表示的是说话时或者现阶段正在 进行的动

5、作，就应该用现在进行时。如：Whats Jim doing ? He is cleaning the roo m .练习：一、写出下列动词的现在分词play read sweep stand sit make go sleep jump walk cleanwash ski_sing do dance come skateride love put live swim run eat playbuylikewritehave二、用所给的动词的正确形式填空7The boy (draw) a picture now.Listen .Some girls (sing) in the classroo

6、m.My mother(cook) some nice food now.What you(do) now?Look, they(have) an English lesson.They(not ,water) the flowers now.Look, the girls (dance) in the classroom. 8. What is our granddaughter doing? She (listen) to music. It 5 o clock now. We (have)supper now.Helen(wash )clothes? Yes, she is.三、句型转换

7、：They are doing housework. (1 改一般疑问句并作肯定、否定回答；2改否定 句)The students are cleaning the classroom.（ 1 改一般疑问 句并，作 肯定、否定 回答；2对画线部分提问）I mlaying football in the playground.（改一般疑问句并作肯定、否 定回答;2对划线部分进行提问）Tom is reading books in his study . （1改一般疑问句并作肯定、否定 回答；2对划线部分进行提问）四.根据汉语意思填空.你要去哪儿啊？ Where are you?. Nick 正在

8、爬攀登架.Nick is(climb) the jungle gym.他们正在读书.They are books.爷爷正在吸烟.Grandpa is.我在做作业.I am(do) my homework.我妈妈正在做饭.My mother is. Jerry在喝柠檬果汁.Jerry is lemon juice.他正在写信.He is a letter.看！ Cindy 来了 . Look, Cindy is.学习必备欢迎下载.我们在唱歌. We are now.五.填入be动词的适当形He drinking water.The eagle flying in the sky.Children

9、 playing in the playground.They are working now.I going to the supermarket.I coming.He walking in the woods now.They watch TV in the evening.过去进行时的用法与练习一、用法说明展示在过去某一时刻或某一阶段正在发生的动作。如：What were you doing this time yesterday?昨天这个时候你在做什么？During the summer of 1999 she was travelling in Europe. 199笄夏天她在欧洲

10、旅行。句型：肯定何：主语+was/were+doing+其它否定旬：主语+was/were+not+doing+其它一般疑问句及答语： Was/Were+主语+doing+其它特殊疑问句：特殊疑问词+was/were+主语+doing+其它注意：一、过去进行时的主要用法是描述一件事发生的背景；一个长动作发生的时候，另一个短动作发生。常用的时间状语 this morning, the whole morning, all day yesterday, from nine to ten last evening, when, while。例如：.We were watching TV from s

11、even to nine last night.昨天晚上七点到九点的时候我们在看电视。.What was he researching all day last Sunday?h 周日他一整天都在研究什么？.My brother fell while he was riding his bicycle and hurt himself.我哥哥骑自行车的时候从车上摔下来，受伤了。.It was raining when they left the station.他们离开车站的时候天正在下雨。5.When I got to the top of the mountain, the sun was

12、 shining.当我到达山顶的时候，阳光灿烂。二、过去进行时可以表示在过去某个时间点发生的事情。时间点可以用介词短语、副词或从句来表示。如：1.What was she doing at nine oclock yesterday?乍天晚上九点她在做什么？（介词短语表示时间点） 2.When I saw him he was decorating his room.当我看见他的时候他正在装饰房间。（when从句表示时间点）三、在复合句中，如果主要动作和背景动作都是延续的或同时发生的，那么主从句的动词都可用过去进行时。 例如：While he was waiting for the bus,

13、he was reading a newspaper边等车边看报。（两个动作都是延续的）He was cleaning his car while I was cooking.他擦车时我在做饭。（两个动作同时进行）一、句型变换1、I was waiting for a bus at that time.改为否定句 对划线部分提问2、The boy was playing over there at six yesterday.改为一般疑问句学习必备欢迎下载做出肯定和否定回答 对划线部分提问3、Lucy was helping her mother this time on Sunday.改为反

14、意疑问句 对划线部分提问二.按要求进行句型转换。We were having a PE class at four yesterday aftern00n.(为否定旬)We a PE class at four yesterday afternoon.Kate was reviewing her lessons at eight last night.(改为一般疑问句，做肯，否回答，对划线部分提问)He ran in the park .由 at this time yesterday改写)They were playing computer games at nine last night.

15、(戈U线部分提问)I was reading a novel at three yesterday afternoon.划线部分提问)三.根据汉语提示完成句子。.他们那时不在打排球。They volleyball at that time.当你回来时，他在看电视吗？ he Tv when you came back?. 昨天中午他在哪里等你？he for you at noon yesterday .当我离开时，他正在做家庭作业。He his homework when I left.正当他们扫地的时候，老师进来了。While theythe floor , the teacher came in.四、动词Jill. John(work) all day yesterday. He(walk) home when the (rian) begin.Whatyou(do) at ten oclock yesterday? I (studay) in class.When Harry(have) breakfast Lily (telephone) him.When I(go) to school this m