初一英语—现在进行时.docx

现在进行时的讲解与练习。（一）基本用法：（1）表示（说话瞬间）正在进行或发生的动作。Imvisitingmyfriendsnow. （2）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或存在的状态。 Heisalwaysworkinghard.他总是非常努力地工作。(表示赞扬)（2） 谓语构成：be (am/ is/ are)v-ing （动词的现在分词）【注意】be动词要与主语的人称和数保持一致。如： Im watching TV now. 我现在正在看电视。 Theyre playing football. 他们正在踢足球。（3） 现在分词的构成。（1）一般情况下在动词词尾加ing。 gogoing ask （问，询问）asking looklooking（2）以不发音的e结尾的动词，去掉e加ing。 have having taketaking make（做，制造）making write（写）writing（3）以一个辅音字母结尾的重读闭音节，双写最后一个字母，再加-ing。 getgetting sit（坐）sitting put（放）putting run（跑）running swimswimming begin（开始）beginning shopshopping(4) 特殊形式 lie-lying die-dying （四）现在进行时态的肯定式、否定式、疑问式及简略回答。（1）肯定式：主语+bev-ing +其他 He is running. 他正在跑。 The students are cleaning the room now .（2）否定式：主语+benotv-ing +其他 He is not running.The students arent cleaning the room now. 这些学生现在没有在打扫房间。（3）一般问句：be动词提前。“Be+主语+v-ing+其他？” 肯定答语Yes，主语be.否定答语No，主语be not.Is he running? Yes, he is. No, he isnt. Are The students cleaning the room now? Yes, they are. No, they arent.（4）特殊问句式： “疑问词+be 主语v-ing其他？”a. 对谓语动词进行提问的：Whatbe 主语doing其他？What is the old man doing under the tree? 那个老人正在树下面做什么呢？b. 对其他成份进行提问的，疑问词一般疑问句？Where is the boy swimming? 那个男孩正在哪里游泳？Who is she waiting for? 她正在等谁呢？五、 现在进行时与一般现在时的区别（一）现在进行时表示动作的暂时性，而一般现在时表示动作的习惯性和经常性 I am watching TV now. （暂时性）我现在在看电视。 I watch TV every day. （经常性） 我每天都看电视。（二）现在进行时可表示短暂性动作，而一般现在时表示长久性动作。Lucy is living in Beijing.（短时间居住）露西暂时住在北京。Lucy lives in Beijing. （长久性居住） 露西在北京居住或生活。（三）现在进行时表示的动作可带有感情色彩，而一般现在时所表述的动作通常是事实。Youre always forgetting the most important things. （责备）你总是爱忘记最重要的事情。He is always helping others. （赞扬）他一直都在帮助他人。He often helps others. （事实） 他经常帮助别人。（四）有些动词不能用进行时，know, understand, love, like, hate, wish, want, think, hope, have, believe, agree, hear, see, notice。这些动词通常用一般现在时表示说话时发生的动作。1) 表示“拥有”的动词。如have (has) 等。例句：I have a nice bike now. (我现在有一辆漂亮的自行车。) 不能说成: I am having a nice bike now. 2) 有些表示感觉的感官动词。如：see, find, look (看起来)，hear (听见)等。例句：We see him. (我们看见他。) 不能说成：We are seeing him. 但是，有些表示感觉的动词，如：listen to, look at 等可用现在进行时。如：They are listening to the teacher. (他们在听老师讲课。) 3) 表示“喜欢”“厌恶”的动词。如：like, love, hate (讨厌)等。例句：We love our country. (我们热爱祖国。) 不可说: We are loving our country. 4) 表示知识或脑力的动词。如：think, know, forget等。例句：I think you are right. (我认为你是对的。) 不能说成：I am thinking you are right. 5) 表示状态的be动词“是”。例句：She is at home. (她在家。) 不能说成：She is being at home. 6) 表示“希望”、“愿望”、“心愿”等的动词。如：want 等词。例句：I want to see her now. (我现在就想见到她。) 不能说成：I am wanting to see her now.【典型例题】一、写出下列动词的现在分词形式work_ sing_ play_ study_have _ dance _ write_ take_run_ sit_ shop_swim_ lie_ die begin get 二、用括号内所给单词的适当形式填空。1. Look! There _(be) a lot of people over there. What _they _ (do) now?2. What _ your mother _ (do)? She is a teacher.3. It _ (rain) heavily outside now. You must stay at home.4. Dont sing. The baby _(sleep).5. My brother _ (not like) playing basketball, but he _ (like) playing football.6. What _ you usually _ (do) on Sunday? I usually _ (stay) at home and _ (do) my homework.7. Listen! The girls _ (sing) in the next room.8. My sister _ (want) to be a teacher.9. Its seven oclock now. The Greens _ (have) supper. 10. He often _ (swim) on Sundays. Look! He _ (swim) at the pool.三、单项选择1. I want _ homework now. A. doing B. to do C. to do my D. do my2. Its time _. A. go to school B. play games C. to go home D. to do my homeworks3. The boy is _ to his teacher. A. saying B. speaking C. talking D. telling4. Im _ a book in the room. A. watching B. seeing C. reading D. looking5. Where _ he _ from? A. is, come B. do, come C. does, come D. is, from6. Do they have a new car? Yes, _. A. they are B. they have C. they dont D. they do7. He often _ supper at 6:00 in the evening. A. have B. has C. is having D. is eating8. Its 6 oclock in the morning. He _. A. get up B. gets up C. is geting up D. is getting up9. What are you doing? Im _ TV. A. watch B. watches C. to watch D. watching10. We _ any Chinese classes on Friday. A. are having B. arent having C. dont have D. are have11. Tom _ an English class now. A. is having B. has C. having D. have12. Are you playing basketball? No, we _. A. isnt B. arent C. not D. dont四、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.连词成句1) read .a new book. _2) clean the blackboard._3) she, the window, open, now.(用现在进行时连词成句.)_4) The birds are singing in the tree.(就划线部分提问)_5) is,who,the window, cleaning?(连词成句)_6) The children are playing games near the house.(就划线部分提问)_7) She is closing the door now.(改成否定句)_8) You are doing your homework.(用I作主语改写句子)_9) they, the tree, sing, now, under.(用现在进行时连词成句.)_10) The Young Pioneers are helping the old woman.(改成一般疑句)_11) Look!Lilyisdancing.（改为一般疑问句）_12) Kateislookingforherwatch.（改为否定句）_13) MrsWhiteiswatchingTV.（划线部分提问）_14) Iamdoinghomework.（改为否定句）_15) Theyarewaitingfory