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1、 八年级上册英语时态精讲精练现在进行时一基本用法 表示说话时正在进行的动作，常与now, at the moment等时间状语连用，有时，句首有look ，listen等词提示。例如：What are you doing now? I am cleaning the window. Look! The students are having an English lesson. 表示现阶段正在进行的动作，常与now, these days等时间状语连用。例如：1.He is now living in Australia. 目前他正住在澳大利亚。（暂时）。比较： 2.He lives in A
2、ustralia. 他定居在澳大利亚。3.I am working in a computer company right now. How are you getting along these days? 这些天来你好吗？ 有时，现在进行时可以表示按计划安排将要发生的动作，特别是使用表示位置转移的动词时，如go, come, leave, start, arrive等。例如：We are going to Rome next week. 下周我们准备去罗马。When are you starting? 你什么时候动身？二动词的现在分词的构成：其动词结构为：be + doing（动词的现在分
3、词）1 一般情况动词后加ing ,以不发音的e结尾的去e加ing。 write- play- eat- see- 2 以重读闭音节结尾的词，双写最后的辅音字母再加ing 这样的词往往看最后三个字母，常常是“辅音元音辅音” open就不行,它的重音不在pen上 sit- get- begin- stop- shop- swim- run- 三.句子结构肯定结构：主语am/is/aredoing（动词的现在分词） He is watching TV.否定形式： 主语am/is/are+ not+ doing. He is not watching TV.一般疑问句：Be（am/is/are）主语d
4、oing（动词的现在分词）?Is he watching TV? Are they singing now?特殊疑问句：疑问词一般疑问结构？ What is he doing? 现在进行时专项练习一.用括号中动词的适当形式填空：1.Myparents_ _(watch)TVnow. 2 .Look.Threeboys_ _(run).3.What_yourmother_ _(do)now? 4._yourdog_now?(sleep)5._you_(listen)tomusic?Yes,Iam.6.Look,MissChen_ _football.(play)7.Tomandhissister
5、_(wait)foryouoverthere. 8.NowClass3andClass4_(have)atest.9.Listen,someone_(sing)intheclassroom.10.WhereisZhangYan?She_(talk)withherteacherintheteachersoffice.二.选择填空： ()1.Who_overtherenow?A.singingB.aresingC.issinging()2.Itsnineten.Thestudents_amusicclass.A.haveB.havingC.arehaving()3.Listen!Theboy_.A
6、.cryingB.iscryingC.cries()4.Donttalkhere.Grandparents_.A.sleepB.issleepingC.aresleeping()5.Istheman_teaormilk?A.drinksB.drinkC.drinking三.按要求进行句型转换：1.Lilyisdancing.(改为一般疑问句)_2.Kateislookingforherwatch.(改为否定句)_3.Mrs.WhiteiswatchingTV.(对划线部分提问)_4.Iamdoinghomework.(改为否定句)_5.Theyarewaitingforyouatthelibr
7、ary.(提问) _ 四.根据中文提示完成句子：1他没在写作业，她在画画。He_ _homework.He_ _ _pictures.2.今天李老师穿着一件红色的连衣裙。MissLi_areddresstoday.3.你爷爷在看报纸吗？_yourgrandpa_ _thenewspaper?4.Tom和Jim在做什么？_TomandJim_?5.他们是在打篮球还是在打排球？_they_basketball_volleyball?一般现在时一 用法1.表示现在的状态 He is twelve. They are at home.2.表示经常性或习惯性的动作 I go to school at s
8、even every day.He plays soccer on Sundays.3.表示主语具备的性格和能力等 She likes apples. They speak Japanese. She is medium build.二 句子结构 1.主语be其他 2. 主语动词原形- 3. (当主语是第三人称单数时) 主语动词的第三人称单数形式-肯定式I am a cleaner. We go to school at seven every day. He goes to school at 6 every day.否定式I am not a cleaner. We dont go to
9、school at seven. He doesnt go to school at 6.疑问式及回答 Are you a cleaner? Yes, I am. (No, Im not.) Do you go to school at seven? Yes, we do.（No, we dont.）Does he go to school at 6? Yes, he does.（No, he doesnt.）注意：在上面的否定和疑问式中，do和does都没有意义，不用译出。它们只是为了使句子完整，叫做助动词。三 其他特征：A.一般现在时常和表示时间频度的副词连用。如：often, usual
10、ly, sometimes, always, never, hardly ever等。（注意频度副词的位置：）1. I often read books in the evening2. Do they usually go to school by bike?3. He doesnt like milk. He never drinks it.4. Sometimes my mother gets back at five. B.一般现在时常和以下时间表达法连用。如：in the morning, in the afternoon, in the evening, at noon, at n
11、ight, every day, on Sunday(s), at seven 等。Do they have math in the morning?She sleeps nine hours every night.They dont have classes on Sundays.动词第三人称单数的构成：1、直接加-slooklooks readreadsplayplays 2. 在字母s, x,ch,sh,o后加-eswatchwatcheswashwashesgogoes dodoes3. 辅音字母加y结尾的动词变y为i，再加-escarry carries study studies
12、 hurry hurries cry cries4. 特殊的 have - has 一般现在时专项练习选择填空( ) 1.A: How often _ she exercise? B: Twice a week.A. do B. does C. doingD. did( ) 2. I _ like to drink milk.A. not B. doesntC. dont D. no( ) 3. Good food and exercise _ me to study better.A. help B. helps C. helping D. to help( ) 4. Is her life
13、style the same _ yours or different?A. as B. in C. at D. to( ) 5. I like _ for breakfast.A. a bookB. a rulerC. an egg D. a sofa( ) 6. The _are $21.A. glasses B. shoe C. table D. bike( ) 7. Tennis _ my favorite sport.A. are B. is C. am D. be( ) 8. I have a tennis and my friend Jim _ two tennis racket
14、s.A. have B. play C. plays D. has( ) 9. “Lets play computer games.” That _ interesting.”A. looks B. sounds C. listens D. reads( )10. My father likes football. But he _ it. He only _ football matches on TV! A. plays, watches B. play, watchC. doesnt play, watches D. plays, doesnt watch 一般过去时意义：表示过去某个时
15、间或某阶段已经发生或完成的动作或状态，和现在无关。如：He went to Wuhan last week. They were in Beijing yesterday.句子的基本结构为：主语动词的过去式-否定结构：主语didnt动词原形-一般疑问句：Did 主语动词原形-动词过去式的构成：A.规则的变化：一般在词尾加ed, 不发音的e后加d。 以辅音字母y结尾的词变y为i加ed 重读闭音节结尾的词，双写最后的辅音字母再加ed。 B不规则动词的过去式一般是把动词原形加以变化，这需要各个击破，寻 找其中的小规律。一般过去时专项练习选择1. Tom _ in a factory. His sis
16、ters _ in a hospital. A. work/ work B. works/ work C. work/ works2. Who _ English best in your class? A. speak B. speaks C. speaking3. Mrs Read _ the windows every day. A. is cleaning B. clean C. cleans4. We _ music and often _ to music. A. like/ listen B. likes/ listens C. like/ are listening5. She
17、 _ up at six in the morning. A. get B. gets C. getting6. On Sunday he sometimes _ his clothes and sometimes _ some shopping. A. wash/ do B. is washing/ is doing C. washes/ does7. The twins usually _ milk and bread for breakfast, but Jim _ some coffee for it. A. have/ have B. have/ has C. has/ have填空
18、：1. My father always _(come) back from work very late.2. The teacher is busy. He _ (sleep) six hours a day.3. Listen! Joan _ _(sing) in the classroom. She often _ (sing) there.4. _ your brother _(know) Japanese?5. Where _ you _ (have) lunch every day?6.The girl _(like) wearing a skirt. Look! She_ _(
19、wear) a red skirt today.根据中文意思完成句子1、学生们在干什么？有一些在打电话，另一些躺在沙滩上。 _ _ the students _? Some _ _ on the phone, _ _ _ on the beach.2、“格林先生在看电视吗？” “不， 他在打扫房间。” “_ Mr Green _ _ TV?” “_, He _ _ _ _ the house.”3、魏芳不是在读书，她在写信。 Wei Fang _ _ a book. She _ _ a letter.4、今天天气怎么样？_ is the weather today? _ _ is the weather _ _ today?5、我正在通过收音机学 (learn) 英语。 I _ _ _ _ English on the radio.6、这个老人每天早上六点钟起床。 The old man _ _ _ _ at six oclock every day.7、你从哪里来？ Where _ _ you from? Where _ _ you _ _ from? 我从美国来。 I _ _ from America. I _ _ from America.