意义 现在进行时 1、现在进行时表示现在(说话瞬间)正在进行或发生的动作。 例如: The students are listening to the teacher .同学们正在听老师讲课。 ※【重点】这类句子常用的标志词是now, listen, look, at the I (watch) TV now.我正在看电moment 等。 视。 Look! He (play) basketball .看! 他正在打篮球。 Listen! They (sing) in the classroom .听!她们正在教室里唱歌。 2、现在进行时也可以表示当前一段时间内的活动或现 阶段正在进行的动作。 【重点】这类句子常用的标志例如:We (work) on a farm these days .※这些天我们正在一家农场工作。 词是these days ,this month I (write) a book this month .这个等。 月我正在写一本书。 还有一类句子,形式上3、当句子前后的语境,时间等暗示动作正在发【注意】是现在进行时,表示的却是将生时,也通常用现在进行时。 来,I know you are arriving next 如:--Where is Lily? Lily在哪? --She is on the sofa. She is watching TV. 她Sunday .我知道你下周日就要来。(还没有来) 在沙发上,正在看电视。 现在进行时的构成 主语+be(am/is /are)+v.-ing+其它 【说明】 1、在这个结构中,be动词被称为“助动词”,它只是一个帮助性的动词,它和后面的动词-ing合在一起,构成现在进行时这一句子结构,本身没有任何意义,它不再是一般现在时中的连系动词。 2、在这个结构中,v.-ing被称为“现在分词”,就是在动词原形后加-ing。 3、be与主语在数上保持一致。 总而言之,现在进行时这一结构的体现,必须要有助动词be和动词的-ing. 现在进行时的构成是: 主语+be+v.ing〔现在分词〕形式 ※[重点] 一单 I+am+ing. 一复 We+are+ing. 二单复 You+are+ing 三单He(She,it)+is+ing 三复 They+are+ing 【现在进行时常用的四种句型】 1、肯定句:主语+be+v.-ing+其它 I (watch)TV now .我正在看电视。 He (play)basketball.他正在打篮球。 They (work) hard on a farm.他们正在一家农场努力工作。 2、否定句:主语+be+not+v.-ing+其它 I (not watch) TV now .我没正在看电视。 He ( not play) basketball.他没正在打篮球。 They (not work) hard on a farm.他们没正在一家农场努力工作。 【重点】由肯定句变成否定句,只需在助动词be后加个not就可以了。 3、一般疑问句:Be +主语+v-ing+其它? 例如: you (watch) TV ?你正在看电视吗?Yes,I am ./No,I am not . he (play)basketball ?他正在打篮球吗?Yes,he is ./No,he isn’t . they (work) hard on a farm?他们正在一家农场努力工作吗?Yes,they are ./No, they aren’t . 【重点】由肯定句变成一般疑问句,只需把助动词be提到主语前面即可。如果主语是第一人称,在变成一般疑问句时,变成第二人称。 4、特殊疑问句:特殊疑问词+ be +主语+v-ing+其它? 例如: are you watching ? 你正在看什么? is he playing ?他正在打什么? are they working hard? 他们正在哪里努力工作? 动词的构成形式 肯定句 :主语+be(is/am/are)+现在分词 否定句:主语+be(is/am/are)+not+现在分词 一般疑问句: be(is/am/are)+主语+现在分词 特殊疑问句:特殊疑问词+be动词+主语+现在分词+Sth? 1. 直接+ ing (例:sleep+ing sleeping) 动词原形 Go 2. 去掉不发音的e+ing (例:bite-e+ing biting) Ask Look 3. 重读闭音节,中间只有一个元音字母,且末尾 只Watch 有1个辅音字母,双写辅音字母+ing Write ( 例:sit+ t+ing sitting,run—running, get—getting) Make Take 4. 以ie结尾变ie为y+ing (例:die-dying ,lie-lying) Get 5. 结尾为c且c读作/k/时,在结尾加k再加ing,如Run 现在分词 picnic-picnicking 【记忆口诀】 进行时,用分词,结尾有个-ing ,寻规律,有四条:一是直接加(ing),二是先去e,三是要双写,四要特殊记。 Begin Sit Lie Tie Die Smile Stop Swim put 现在进行时的结构变化 1、把下面这个句子变成否定句: He is watching TV now . →He is watching TV now. 2、把下面这个句子变成一般疑问句: 【注意】提问句子的主语时,只需用特殊疑问词换掉原句子中的主语即可,句子的语序不用改变,如③,如果提问句子的其它成分,特殊疑问词后面要用一般疑问句的语序,即把He is wathing TV now . → he watching TV ? 3、对下面的句子画线部分进行提问: ①He is watching TV now . → is he watching now ? ②He is watching TV now . → is he doing now ? ③He is watching TV now . → is watching TV now ? ④He is watching TV at home . → is he watching TV now ? 现在进行时专项练习 【注意】Look!/Listen!/ Where is Mary?等为现在进行时的情境标志词。 (一) 用括号中动词的适当形式填空:
1. My parents ____ _________(watch)TV now. ★2. Look! Three boys _______________(run). 3. What ____ your mother ______(do)now?
4. ____ you _____(listen)to music? Yes, I am. ★5. Look! Tom _____ football.(play) 6. Tom and his sister _____ _____(wait)for you over there. ★ 7. Listen! someone _ _____(sing)in the classroom.
★8. Where is Mary? —She _____(talk)with her teacher in the teacher’s office. (二) 选择填空:
( )1. Who ______ over there now?
A. singing B. are sing C. is singing
( )2. It’s nine ten. The students ______ a music class.
A. have B. having C. are having
( )3. Listen! The boy _______. A. crying B. is crying C. cries
( )4. Don’t talk here. Grandparents ______. A. sleep B. is sleeping C. are sleeping ( )5. Is the man _______ tea or milk? A. drinks B. drink C. drinking (三). 按要求进行句型转换: 1. Lily is dancing.(改为一般疑问句)
_________________________________________ 2. Kate is looking for her watch.(改为否定句) ________________________________________ 3. Mrs White is watching TV.(对划线部分提问)
______________ Mrs White ________________________________ 4. I am doing homework.(改为否定句)
_______________________________________________ 5. We are having lunch at home.(改为一般疑问句) ________ you ________ lunch at home?
6. They are reading English in the classroom.(改为单数句) ________ ________ reading English in the classroom. (四) 改错:
1. People like swim in summer. __________________________ 2. Are you listen to me? ____________________________
3. I writing a letter now.( ) ______________________________________________________ (五). 将下列句子改成现在进行时
1. Tom can speak Chinese. Tom ________________ Chinese. 2. I watch TV every day. I _________________TVnow 3. She works in a hospital. She _________________ in hospital. (六)、句型转换:
1. They are doing housework .(分别改成一般疑问句和否定句) _____________________________________________________________ _____________________________________________________________
2.The students are cleaning the classroom . ( 改一般疑问句并作肯定回答) __________________________________________________________________________________________________________________________
3.I’m playing the football in the playground .(对划线部分进行提问) _____________________________________________________________ 4.Tom is reading books in his study . (对划线部分进行提问)
5. The boy is playing basketball.
否定句:____________________________ 一般疑问句:_________________________ 否定回答:__________________________
对“ playing basketball”提问:__________________________ 对“ The boy”提问:__________________________
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