现在进行时讲义.doc

现在进行时现在进行时表“正在” 主语+be+现在分词 The students of Class Two are singing . 二班的学生正在唱歌。 She is putting on a yellow sweater . 她正在穿一件黄毛衣。 I am looking at the blackboard . 我正在看黑板。注意动词的现在分词的变化。put putting , cut (砍，割) cutting , run running 。否定式： 主语+be+not+现在分词 如： They arent playing basketball . 他们不在打篮球。 She is not having breakfast . 她没在吃早饭。疑问句式: Be+主语+现在分词+其他 如： Are you doing your homework now ? 你现在正在做作业吗 ? Are you doing your homework now ? 你现在正做作业吗 ? Is Lily coming tomorrow ? 莉莉明天会来吗 ? 提示 此句型的否定回答为：Yes , 主语+be.否定回答为No .主语+be not.详细讲解: ( 1 ) 表示说话时在进行或发生的动作，也可表示当前一段时间内的活动或现阶段正在进行的动作。时间状语：now, look, listen，Its oclock, 例如： He is watching TV now . We are working on a farm these days . ( 2 ) 时态构成：动词 be ( am / is / are ) +现在分词 ( 3 ) 现在分词的构成： 1 ) 一般在动词原形末尾加 - ing . 例如：asking studying 2 ) 以不发音字母 e 结尾的动词，先去掉 e , 再加 - ing。例如：writing taking 3 ) 以重读闭音节结尾的动词，如果末尾只有一个辅音字母，应先双写这一字母，再加 - ing . 例如：getting sitting beginning running putting ( 4 ) 现在分词的肯定形式、否定形式、疑问形式及其回答，所有变化都体现在助动词 be ( is / am / are ) 上。现在进行时的肯定形式： I am working . They are writing .现在进行时的否定形式： I am not working . They arent writing .一般疑问句及回答： Am I working ? Yes , you are . / No , you arent . Are they writing ? Yes , they are . / No , they arent .特殊疑问句及回答： What are you doing ? We are working . Where is he playing basketball ? He is playing basketball on the playground . ( 5) 不是所有动词都能用现在进行时态的，如：see、like、want、know 等动词往往都不用进行时态。现在分词构成口诀现在分词很好记，动词后缀-ing。直接加、去e加、双写加。还有一点要注意ie要用y来替。现在进行时用法口诀主语在前be在后，现在分词跟着走，其他成分不可丢。变一般很简单，把be提到句子前，否定句也不难，be后要把not添。还有一点要注意，动作提问doing替。现在进行时练习集锦一、将下列动词变成ing形式help_ come_swim_ eat_give_ find_sit_ write_tie_make_play_clean_catch_ walk_ride_run_draw_listen_ begin_ dance_一、按要求改写句子1. The boy is playing basketball.否定句：_一般疑问句：_肯定回答：_否定回答：_对“ The boy”提问：_2.造句:1).she,the window,open,now.(用现在进行时连词成句.)_2).is,who,the window,cleaning?(连词成句)_3).She is closing the door now.(改成否定句)_4.)You are doing your homework.(用I作主语改写句子)_5).they,the tree,sing,now,under.(用现在进行时连词成句.)_6).The Young Pioneers are helping the old woman.(改成一般疑问句)_二、单项选择（ ）1.我在照看孩子. (A)I am looking after the baby.(B)Im look aftering the baby. (C)I look am aftering the baby.(D)I looking after the baby.( )2._friends making_a kite. (A)I,me (B)My,my (C)My,me (D)His,his( )3.Is the woman _ yellow your teacher? (A)in (B)putting on (C)wearing (D)having( )4.Look!The twins_their mother do the housework. (A)are wanting (B)help(C)are helping (D)are looking( )5._are the birds doing? They are singing in a tree. (A)Who (B)What (C)How (D)Where( )6.Is she_something? (A)eat (B)eating (C)eating (D)eats( )7.你在干什么? (A)What is you doing? (B)What are you do?(C)What are you doing? (D)What do you do?( )8.What are you listening_? (A)/ (B)for (C)at (D)to( )9.我正在听他说话. (A)I listening to him. (B)Im listening to him.(C)Im listen to him. (D)Im listening him.( )10.They are_their clothes. (A)makeing (B)putting (C)put away (D)putting on( )11.Listen! She_in the classroom. (A)is singing (B)sing (C)to sing (D)is sing( )12.Today Jim_ his white shirt and brown trousers. (A)is putting on (B)wear (C)put on (D)is wearing( )13._are you eating?Im eating_meat. (A)What,some (B)Which,any (C)Where,not (D)What,a( )14.They_TV in the evening.They do their homework.(A)are watching (B)cant watching (C)dont watch (D)dont watching ( )15.The children_football. (A)is playing (B)are playing (C)play the (D)play a( )16.They are flying kites. (A)他们喜欢放风筝. (B)他们在放风筝吗? (C)他们在放风筝. (D)他们常放风筝. ( )17.Look,They are swimming in the river.I want_you. (A)to go with (B)go with (C)helping (D)help ( )18.Look.Lucy is_a new bike today. (A)jumping (B)running (C)riding (D)taking三、