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1、第三篇语法知识专题第三篇语法知识专题第九节动词(一)动词的分类分类方法种类语法意义示例按时限分类延续性动词能与一段时间连用的,动作可延续的动词livestudyworkstayread非延续性动词动作瞬间完成,不能与一段时间连用 (与一段时间连用需转换) finishendgocomedieopen分类方法种类语法意义示例按性质分类行为动词及物动词接宾语I reached Beijing just now.不及物动词不接宾语 (后跟介词可接宾语) I got to Beijing just now.连系动词接表语beseemlookfeelsoundsmelltastegetturnbecom
2、e助动词接动词原形或分词dodoesdidhavehashad情态动词接动词原形canmaymustshouldwouldcould分类方法种类语法意义示例按形式分类动词原形动词本身jumprunsing第三人称单数动词原形后加-s/escomesfinishes过去式规则的加-ed,不规则的强记livedwrote过去分词规则的加-ed,不规则的强记dancedwritten现在分词动词原形后加-ingwritingsinging(二) 不规则动词表1AAA2.AAB3.ABA4.ABB(1)在动词原形后加一个辅音字母d,t或加ed构成过去式或过去分词(2)把动词原形的最后一个辅音字母“d”
3、改为“t” 构成过去式或过去分词(3)原形oughtought(4)原形aughtaught(5)变其中一个元音字母(6)原形lt/pt/ftlt/pt/ft(7) 其他5.ABC(1)原形过去式原形 (e)n(2)原形过去式过去式 (e)n(3)变单词在重读音节中的元音字母“i”分别为“a”(过去式) 和“u”(过去分词)(4)其他(三) 规则动词的变化形式原形第三人称单数过去式及过去分词现在分词以重读闭音节结尾的动词stop, prefer加-sstops, prefers双写词尾辅音字母再加-edstopped,preferred双写词尾辅音字母,再加-ingstopping,prefe
4、rring以s,x,ch,sh结尾的动词dress, wash,watch, fix加-esdresses, washes,watches, fixes加-eddressed, washed,watched, fixed加-ingdressing, washing,watching, fixing以辅音字母y结尾的动词study, try变y为i,再加-esstudies, tries变y为i,再加-edstudied, tried加-ingstudying, trying形式原形第三人称单数过去式及过去分词现在分词三个ie结尾的动词lie, die, tie加-slies, dies, ti
5、es加-dlied, died, tied变ie为y,再加-inglying, dying,tying以不发音字母e结尾close, movecloses, movesclosed, moved去e加-ingclosing, moving一般动词work直接加-sworks直接加-edworked直接加-ingworking(四) 重点非延续性动词(短语)转换为延续性动词(短语)表(五)动词的时态 (以write为例)时态一般现在时一般过去时现在进行时过去进行时一般将来时过去将来时现在完成时过去完成时构成write/writeswroteam/is/arewritingwas/werewill
6、writewillwritewouldwritehave/haswrittenhadwrittenshallwrite时态一般现在时一般过去时现在进行时过去进行时一般将来时过去将来时现在完成时过去完成时用法 (部分典型标志词) often,usually,always,sometimesago短语 (two days/months/years ago) when/while引导的时间状语从句at this/that time yesterdaytomorrow短语the next短语ever,never,just,already,yet,before,recentlyby the time/b
7、y the end of过去某时every day/week/month/yearlast短语 (last year/month/week) next短语so far,these days,in thelast/past fewyears虚拟语气中从句中其他yesterday短语 (the day before yesterday) in一段时间for一段时间,since过去的时间点句型转换由do,does转换由did转换由am,is,are转换由was,were 转换由will,shall转换由would转换由have,has转换由had转换(六)动词及时态考点1have/has been
8、to 地点: 表曾去过某地(已回来)have/has gone to 地点: 表去某地了(未归)have/has been in地点: 要和一段时间连用 1)I have ever been to London twice.2)He isnt at home. He has gone to the library.3)We have been in Beijing for ten years.2瞬间动词和一段时间连用时要转换。My grandpa has died for ten years.(错句)应改为:My grandpa has been dead for ten years.3现在完
9、成时,表现在,不能和过去的时间连用。He has finished his work just now.(错句,去掉has)考点一动词的分类1(2016中考改编)I hated my new school at first,but I made lots of friends and now I it.()AgetBtakeClove2(2016中考改编)Personally,I dont quite agree that peopledangerous animals as pets.()AdependBaffordCkeep3(2016中考改编)How long can I the boo
10、k?For two weeks.()AkeepBborrowClendCCA4(2016中考改编)Rebuilding in Yushu began soon after the earthquake,and it will_ long into the future.()AreachBkeepClast5(2016中考改编)You dont look well.Youd better see the doctor.I_.But the doctor said there was nothing serious.()AhaveBamCwasCA考点二动词的时态1(2016中考改编)Your d
11、onation_ and the money will be used to help the students from poor families.()Ais greatly appreciatingBappreciatesCis greatly appreciated2(2016中考改编)May I speak to Lin Tao?Sorry,he is not in.He_ to Changsha.()Ahas beenBhas goneCwentCB3(2016中考改编)Im now in New York with my friend Jenny.We_ by plane on
12、Monday.()AarriveBarrivedCare arriving4(2016中考改编)He_ in Xinxiang for five years when I heard his news. ()Ahas livedBhad livedCis living5(2016中考改编)Do you know her well?Sure.We_ friends since ten years ago.()AwereBhave madeChave beenBBCAwasAwouldAwill liveClook it upAbeBfinishing(七)情态动词情态动词:无人称和数的变化,后跟
13、动词原形才能做谓语。原形与过去式用法含义例句can could 表能力(be able to有时态变化)能,会He can dance.He is able to dance.表请求(一般疑问句)可以Can you help me?Could you give me a hand?(更委婉)表否定推测cant be(不可能)The boy cant be Tony.Tony is much taller.may might表可能性可能Tim may know the way.Maybe Tim knows the way.表客气请求可以May I come in?表祝愿祝May you goo
14、d luck.原形与过去式用法含义例句must表命令/义务必须We must obey the school rules.表肯定推测must be一定He must be at home because the light is on.must的一般疑问句的否定回答用neednt 或dont have to 没有必要Mom,must I write to my cousin today?No,you neednt./you dont have to.You may write it on weekends.与同义短语have to的区别:have to有时态、人称的变化(has to/had
15、to.)must 无变化不得不,必须The boy had to stay at home alone yesterday.The boy must stay at home alone yesterday.原形与过去式用法含义例句shall shouldShall I/we.表请求好吗?Shall I ask you some questions?Lets 的附加反意疑问句是shall we好吗Lets go to the park,shall we?should/shouldnt表义务(不)应该Students shouldnt have long hair.will/would表提建议愿
16、意Will/Would/Could you please take out the trash?原形与过去式用法含义例句needneed do(need是情态动词) 需要We need buy some school things.We need to buy some school things.need to do需要做need doing需要被做(need是行为动词)The watch needs repairing.(这块手表需要被修。)had betterhad better (not) do Its (not) best to do sth.最好(不)You had better
17、ask your teachers for help.Its best to ask your teachers for help.温馨提示:1may的一般疑问句的否定回答用 cant。Mom,may I play computer games now?No,you cant.Study must come first.(必须先学习)2mustnt意为“禁止;不准”。You mustnt play soccer on the street.Its so dangerous.3“情态动词have done(完成时)”意为“原本应该做某事,而实际上没做”。If we started two day
18、s ago,we should have finished the work earlier.4“情态动词be doing(进行时)”意为“想必正在;可能正在;应当正在”。Its 12 oclock.They must be having lunch.(他们一定在吃午饭。)5maybe 和may bemaybeperhaps是副词, may be在句中作谓语。(1)Where is Jack?He may be in the classroom.But Im not sure.(2)Maybe Tom is at home now. Go and find him.考点三情态动词的用法1Men
19、g Fei had his arm broken while recording If You are the One in Beijing.Really? Then perhaps hebe host TV programs for some time.()A. neednt B. mustnt C. cant2I swim here?Im sorry, childrenswim alone in the river.()A. Can; must B. May; mustntC. Must; cant3 Must we wear our school uniform this afternoon?No, you. All of us will go on an outing.()A. neednt B. mustnt C. shouldntCBA4Have you decided which senior high school to choose?Not yet. I_go to Moonlight School.()Amust B. may C. need5W
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