初中英语现在进行时讲解

现在进行时一、现在进行时的概念及构成1.现在进行时的概念现在进行时表示现在某一时刻或某一阶段正在进行或发生的动作，经常和时间状语now连用或用在look, listen at present.等引出的句子中。二、.现在进行时的构成和运用：表示现在正在发生或进行的事件或动作。也可表示当前一段时间或现阶段正在进行的动作。句子的结构如下： ( be ) am is + 动词 ingare如：1. I am listening to the music now. 2. The students are drawing pictures now. 3. Listen! She is singing .4. Look! Mr Li is riding a bike. 动词现在分词构成:1) 正常变化是在动词原型后加ing 如: read-reading ; drink-drinking ; eat-eating ; 2) 以e结尾的动词，去掉e再加ing 如: write -writing ; make- making ; ride-riding ; 3).重读闭音节（ 只有一个元音字母，而其后跟有一个辅音字母时）要双写结尾的辅音字母再加ingsit-sitting ; swim-swimming ; put-putting ; runrunning4)以ie结尾的动词-ie+y+ing：lie - lying die - dying下面以talk为例来说明其各种句式。人称肯定句否定句一般疑问句及其答语第一人称IIm talking.Im not talking.Am I talking?Yes, you are.No, you arent.weWe are talking.We arent talking.Are we talking?Yes, we are.No, we arent.第二人称youYou are talking.You arent talking.Are you talking?Yes, I am.No, I am not.youYou are talking.You arent talking.Are you talking?Yes, we are.No, we arent.第三人称heHe is talking.He isnt talking.Is he talking?Yes, he is.No, he isnt.sheShe is talking.She isnt talkingIs she talking?Yes, she is.No, she isnt.itIt is talking.It isnt talking.Is it talking?Yes, it isnt.No, it isnt.theyThey are talking.They arent talking.Are they talking?Yes, they are.No, they arent.三、现在进行时的其他用法1.现在进行时代替一般现在时现在进行时有时可以代替一般现在时，表示一个经常性的动作或状态，表示一种感情或强调某种情况的暂时性。例如：You are doing a good job.你干得不错嘛。（赞扬）How are you feeling these days?这几天感觉如何？（关怀）2.现在进行时还可以表示礼貌，常用于口头交际Im hoping to meet you.我真心希望见到你。Were looking forward to your coming.我们正盼着您的到来。四、现在进行时与一般现在时的用法区别1.从时间长度来看一般现在时表示经常性，而现在进行时表示短暂性，强调动作正在进行。如：I do my homework every day.我每天都做作业。Do you usually go to school at seven?你通常7点钟去上学吗？We are reading the text now.我们现在正在读课文。They are waiting for a bus.他们正在等车。2.从进行的动作来看一般现在时表示经常性的动作或状态，而现在进行时表示短暂的非持久性的动作。如： 正The teacher is standing near the blackboard.误The new building is standing near the river.正The new building stands near the river.五、没有进行时态的动词1.表示感觉的感官动词没有进行时态如see(看见)，hear(听见)，feel(感到)，taste(尝起来)，sound(听起来)，notice(注意到)，watch(观察)，find(发现)等。2.表示存在状态的动词没有进行时态如have(有)，own(拥有)，seem(似乎)，be(是)，stay(保持)，remain(仍然是)等。3.表示人物的心理活动、态度情感等的描述性动词没有进行时态如love(爱)，like(喜欢)，hate(憎恨)，know(知道)，forget(忘记)，remember(记住)，wish(希望)，think(认为)，want(想要)，mind(介意)，need(需要)，agree(同意)等。4.表示一次性动作的动词没有进行时态如decide(决定)，receive(接受)，allow(允许)，give(给)等。实战演练一、用下列所给动词的适当形式填空1.Look!They (plant)trees around the lake.2.Listen!Who (cry)there?3.People are busy (work)in the fields.4.He heard my teachers (talk)about the lecture when I passed.5.Youll find many people (walk)with their pets in the street.6.She is practicing (act)at the moment.7.What you (do)now? -I (write).8.Its winter now.The peasants (get)ready for the next year.9.What you (do)at eight last night?10.Mr Yin must be in his office. I notice him (enter)his office.11.Miss Mei keeps (make)the same mistake.12.When I was at home my mother (watch)TV.13. (make)a lot of noise is impolite in public.14.He is now (look)forward to a chance to go abroad.15.He prefers (dance)to singing.二、将下列句子译成英语1.我们现在正在进行期末考试 。2.老师们总是表扬我们。3.看！他们一直在蹦蹦跳跳。4.我相信他们此刻正在尽力干工作。5.现在外面天气很冷，而且正下着大雪。参考答案一、1.are planting 2.is crying3.working 4.talking5.walking 6.acting7.are;doing;am writing 8.are getting9.were;doing 10.enter11.making 12.was watching13.Making/To make 14.looking15.dancing二、1.We are now having our final examination.2.The teachers are always praising us.3.Look!They are jumping and running all the time.4.Im sure they are trying their best to do the job.5.Its very cold outside now.And it is snowing hard.附加练习（可为课后作业）1Mr Liang (read) a book now.2. The mouses (run) now.3. Look ! Amy and John (swim).4. My sister (make) a kite in his room now.5. Look! The bus (stop).6. We (have) an English class now.7. Listen! Someone is (come).8. They (catch) insects now.9. He (do) an experiment now.10. They (collect) stamps now.11. Look! My brother (dive) now.12. Sue ( watch ) TV in the dining room.13. The nurses (get ) off the bus.14. Come on. They ( leave ) now.15. It (eat) fish now.16. My uncle (work) in the office now.17. Where is your mother? She (answer) the phone. 18. The doctors (swim) now.一选择填空：1. What are you doing? I_.A. eat B. can eat C. eating D. am eating2. We are _ books now.A. reading B. am reading C. read D. to read3. Our teacher is _ a red sweater .A. putting on B. put on C. wears D. wear4. That boy isnt _ the teacher .A. listen B. listens C. listening D. listening to5. Its eight oclock. Jimmys parents _ TV.A. is watching B. are watching C. watch D. to watch6. My mother is _ a cake _ my birthday. A. making ; to B. making ; for C. doing ; to D. doing ; for7. They are _ these books in the box.A. puts B. put C. to put D. putting8. _ you _ the window? Yes, I am.A. Do, clean B. Is, cleaning C. Are, cleaning D. Do, cleaning 二 用动词的适当形式填空1. What are you _(do) now? I _(eat) bread.2. Its nine oclock. My father_(work) in the office.3. Look, the boy_(put) the rubbish into the bin.4. _ he _(clean) the classroom? No, he isnt. He_(play).5. Where is Mike? He_(run) on the grass.6. Listen, who_(sing) in the music room? 三句型转换1. They are cleaning the window.（改为一般疑问句）_?2. Tom is working.（改为一般疑问句）_ ?3. Jim is singing.（改为否定句）_.4. Kate is dancing （对划线提问）_?5. She is sitting near the wi