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 过去进行时,What is the man doing?,He is running.,What is the girl doing?,She is eating.,What is the dog doing?,It is sleeping.,What are the players doing?,They are playing football.,He is running.She is eating.It is sleeping.They are playing football.We are swimming.,The Present Continuous Tense(现在
2、进行时态),定义:,构成:,标志:,现在进行时态表示现在正在进行着某种事情及动作。,“be(am,is,are)+v-ingv-ing是动词的分词形式,动词be根据主语人称进行变化。,当句中出现Look/Listen/now或有上下文提示时用现在进行时。例如:Look!Han Mei is singing there!Listen!Jack is talking.What are you doing now?It is running,now.,动词现在分词的构成规律,1)一般情况下,在动词原形后直接加-ing.如:workworking(工作)dodoing(做)playplaying(玩)
3、,2)以不发音的字母e结尾的动词,去掉e,再加-ing.如:dancedancing(跳舞)comecoming(来)(但动词词尾是字母组合ee的,就不能去掉词尾e,而应直接加-ing。例如:seeseeing),3)重读闭音节单词,如果末尾只有一个辅音字母,则双写这一字母,再加-ing.如:getgetting(得到)shopshopping(购物)runrunning(跑)swimswimming(游泳),课堂练习一,1)I _ _ basketball with my friend now.(play)2)She _ _ to school now.(go)3)They _ _ wate
4、r now.(drink)4)Listen!The bird _ _ on the tree.(sing)5)Look!He _ _ on the playground.(run)6)The dog _ _ in this river.(swim)7)we _ _ lunch now.(have)8)_ your father _(watch)TV now?9)The girl with her dog_ _(sit)on the sofa.,一、填写出下列进行时态的句子的正确动词形式,am playing,is going,are drinking,is singing,is running
5、,is swimming,are having,Is watching,Is sitting,二、句型转换1.I am watering the flowers.(否定句)2.Shes jumping now.(一般疑问句)3.The boys are playing cards.(划线提问)4.He is doing his homework.(复数句),I am not watering the flowers.,Is she jumping now?,What are the boys doing?,They are doing their homework.,课堂练习二,看图说话:,尽
6、可能多的用进行时态来表达!,Its fine today.The children are playing in the park.Look!Some girls are playing games.Lingling is climbing up a tree.A girl is standing behind a house.Fangfang is looking for her.There is a boy over there.Whats he doing?He is flying a kite.They are all having a good time.,过去进行时,过去进行时表示
7、过去某一时刻或某段时间正在进行的动作。过去进行时由was/were+动词-ing形式构成。,1.过去进行时的各种句式:,肯定句:主语+was/were+动词-ing形式。如:,否定句:主语+was/were+not+动词-ing形式。如:,I was reading at this time yesterday.昨天这个时候我正在看书。,I wasnt reading at this time yesterday.昨天这个时候我没在看书。,疑问句:(1)一般疑问句:was/were+主语+动词-ing形式。肯定回答:Yes,主语+was/were.否定回答:No,主语+wasnt/werent
8、.如:,Were you reading at this time yesterday?昨天这个时候你在看书吗?Yes,I was./No,I wasnt.是的,我在看。/不,我没在看。,(2)特殊疑问句:疑问词+was/were+主语+动词-ing形式。如:,What were you doing at this time yesterday?昨天这个时候你在做什么?What was he researching all day last Sunday?上周日他一整天都在研究什么?,(1)表示过去某一时刻或某一段时间内正在进行的动作,常与时间状语at that time,at that mo
9、ment,at this time yesterday,at ten oclock yesterday等连用。如:,2.过去进行时的用法基本用法:,Were you playing basketball at four yesterday afternoon?昨天下午四点你们在打篮球吗?,(2)表示在过去一段时间内持续进行的动作(有时也可以有间歇)。如:,We were watching TV from seven to nine last night.昨天晚上七点到九点的时候我们在看电视。She was singing from 7:00 to 7:30 last night.她昨晚七点至七
10、点半在唱歌。,特殊用法:,(1)常用于介绍故事的背景。如:,(2)when引导的从句表示一个短暂的时间点,谓语动词用一般过去时,主句用一般过去时或过去进行时;while引导的从句表示一段持续的时间,主句为一般过去时,从句谓语动词用过去进行时。如:,Once an Arab was traveling in the desert.从前,有个阿拉伯人在沙漠中旅行。,What were you doing at 7 oclock last night?,I was doing some housework.,I was having dinner.,Ask and answer.,What were
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