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初中英语知识点1一般现在时的用法http://www.so.com/sq=%E7%94%A8%E6%B3%95ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank1经常性或习惯性的动作http://www.so.com/sq=%E5%8A%A8%E4%BD%9Cie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank,常与表示频腮度的时间状语http://www.so.com/sq=%E6%97%B6%E9%97%B4%E7%8A%B6%E8%AF%ADie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank连用时间状语:every…sometimesat…onSundayIleavehomeforschoolat7everymorning.2客观真理,客观存在,科学事实http://www.so.com/sq=%E7%A7%91%E5%AD%A6%E4%BA%8B%E5%AE%9Eie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blankTheearthmovesaroundthesun.ShanghailiesintheeastofChina.3表示格言或警句http://www.so.com/sq=%E8%AD%A6%E5%8F%A5ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank中Pridegoesbeforeafall.骄者必败注意:此用法如果出现在宾语从句http://www.so.com/sq=%E5%AE%BE%E8%AF%AD%E4%BB%8E%E5%8F%A5ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank中,即使主句http://www.so.com/sq=%E4%B8%BB%E5%8F%A5ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank是过去时,从句http://www.so.com/sq=%E4%BB%8E%E5%8F%A5ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank谓语http://www.so.com/sq=%E8%B0%93%E8%AF%ADie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank也要用一般现在时例:Columbusprovedthattheearthisround..4现在时刻的状态、能力、性格、个性Idon’twantsomuch.AnnWangwritesgoodEnglishbutdoesnotspeakwell.比较:NowIputthesugarinthecup.Iamdoingmyhomeworknow.第一句用一般现在时,用于操作演示或指导说明的示范性动作,表示言行的瞬间动作再如:NowwatchmeIswitchonthecurrentandstandback.第二句中的now是进行时http://www.so.com/sq=%E8%BF%9B%E8%A1%8C%E6%97%B6ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank的标志,表示正在进行的动作的客观状况,所以后句用一般现在时一般过去时的用法1在确定的过去时间里http://www.so.com/sq=%E6%97%B6%E9%97%B4%E9%87%8Cie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank所发生的动作或存在的状态时间状语有:yesterdaylastweekanhouragotheotherdayin1982等Wheredidyougojustnow2表示在过去一段时间内,经常性或习惯性的动作WhenIwasachildIoftenplayedfootballinthestreet.WhenevertheBrownswentduringtheirvisittheyweregivenawarmwelcome.3句型http://www.so.com/sq=%E5%8F%A5%E5%9E%8Bie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank:Itistimeforsb.todosth到……时间了该……了Itistimesb.didsth.时间已迟了早该……了Itistimeforyoutogotobed.你该睡觉了Itistimeyouwenttobed.你早该睡觉了wouldhadrathersb.didsth.表示’宁愿某人做某事’I’dratheryoucametomorrow.4wishwonderthinkhope等用过去时,作试探性的询问、请求、建议等Ithoughtyoumighthavesome.我以为你想要一些比较:一般过去时表示的动作或状态都已成为过去,现已不复存在Christinewasaninvalidallherlife.含义http://www.so.com/sq=%E5%90%AB%E4%B9%89ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank:她已不在人间http://www.so.com/sq=%E5%A5%B9%E5%B7%B2%E4%B8%8D%E5%9C%A8%E4%BA%BA%E9%97%B4ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blankChristinehasbeenaninvalidallherlife.含义:她现在还活着Mrs.DarbylivedinKentuckyforsevenyears.含义:达比太太已不再住在肯塔基州Mrs.DarbyhaslivedinKentuckyforsevenyears.含义:现在还住在肯塔基州,有可能指刚离去注意:用过去时表示现在,表示委婉语气1动词http://www.so.com/sq=%E5%8A%A8%E8%AF%8Die=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blankwanthopewonderthinkintend等DidyouwantanythingelseIwonderedifyoucouldhelpme.2情态动词couldwould.Couldyoulendmeyourbike
3.usedto/beusedtousedto+do:过去常常表示过去习惯性的动作或状态,但如今已不存在Motherusednottobesoforgetful.Scarfusedtotakeawalk.过去常常散步beusedto+doing:对……已感到习惯,或习惯于,to是介词http://www.so.com/sq=%E4%BB%8B%E8%AF%8Die=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank,后需加名词http://www.so.com/sq=%E5%90%8D%E8%AF%8Die=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank或动名词http://www.so.com/sq=%E5%8A%A8%E5%90%8D%E8%AF%8Die=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blankHeisusedtoavegetariandiet.Scarfisusedtotakingawalk.现在习惯于散步典型例题----YourphonenumberagainI___quitecatchit.----It’s
69568442.A.didn’tB.couldn’tC.don’tD.can’t答案A.本句虽没有明确的时间状语,但从语意http://www.so.com/sq=%E8%AF%AD%E6%84%8Fie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank上看出,在听的时候没有听懂这个动作发生在过去,因此应用过去时
4.一般将来时1shall用于第一人称,常被will所代替will在陈述句中用于各人称,在争求意见时常用于第二人称http://www.so.com/sq=%E7%AC%AC%E4%BA%8C%E4%BA%BA%E7%A7%B0ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blankWhichparagraphshallIreadfirst.Willyoubeathomeatseventhisevening2begoingto+不定式,表示将来a.主语的意图,即将做某事Whatareyougoingtodotomorrowb.计划,安排要发生的事Theplayisgoingtobeproducednextmonthc.有迹象要发生的事Lookatthedarkcloudsthereisgoingtobeastorm.3be+不定式表将来,按计划或正式安排将发生的事WearetodiscussthereportnextSaturday.4beaboutto+不定式,意为马上做某事HeisabouttoleaveforBeijing.注意:beaboutto不能与tomorrownextweek等表示明确将来时http://www.so.com/sq=%E5%B0%86%E6%9D%A5%E6%97%B6ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank的时间状语连用
5.begoingto/will用于条件句时,begoingto表将来will表意愿Ifyouaregoingtomakeajourneyyou’dbettergetreadyforitassoonaspossible.Nowifyouwilltakeoffyourclotheswewillfitthenewclothesonyouinfrontofthemirror.
6.beto和begoingtobeto表示客观安排或受人指示而做某事begoingto表示主观的打算或计划Iamtoplayfootballtomorrowafternoon.客观安排I’mgoingtoplayfootballtomorrowafternoon.主观安排
7.一般现在时表将来1下列动词:comegoarriveleavestartbeginreturn的一般现在时表将来这主要用来表示在时间上已确定或安排好的事情http://www.so.com/sq=%E5%A5%BD%E7%9A%84%E4%BA%8B%E6%83%85ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blankThetrainleavesatsixtomorrowmorning.WhendoesthebusstarItstarsintenminutes.2倒装句http://www.so.com/sq=%E5%80%92%E8%A3%85%E5%8F%A5ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank,表示动作正在进行,如:Herecomesthebus.=Thebusiscoming.Theregoesthebell.=Thebellisringing.3在时间或条件句中WhenBillcomes不是willcomeaskhimtowaitforme.I’llwritetoyouassoonasIarrivethere.4在动词hopetakecarethatmakesurethat等后Ihopetheyhaveanicetimenextweek.Makesurethatthewindowsareclosedbeforeyouleavetheroom.
8.用于现在完成时的句型1Itisthefirst/secondtime….that…结构http://www.so.com/sq=%E7%BB%93%E6%9E%84ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank中的从句部分,用现在完成时ItisthefirsttimethatIhavevisitedthecity.Itwasthethirdtimethattheboyhadbeenlate.2Thisisthe…that…结构,that从句要用现在完成时.ThisisthebestfilmthatI’veeverseen.这是我看过的最好的电影http://www.so.com/sq=%E6%9C%80%E5%A5%BD%E7%9A%84%E7%94%B5%E5%BD%B1ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blankThisisthefirsttimethatI’veheardhimsing.这是我第一次听他唱歌典型例题1---Doyouknowourtownatall---NothisisthefirsttimeI___here.A.wasB.havebeenC.cameD.amcoming答案B.Thisisthefirsttime后面所加从句应为现在完成时,故选B2---Haveyou____beentoourtownbefore---Noit’sthefirsttimeI___here.A.evencomeB.evenhavecomeC.evercomeD.everhavecome答案D.ever意为曾经或无论何时,反意词为never,此两词常用于完成时ThisisthelargestfishIhaveeverseen.Itis/wasthefirsttime+that-clause的句型中,从句要用完成时注意:非延续性动词http://www.so.com/sq=%E9%9D%9E%E5%BB%B6%E7%BB%AD%E6%80%A7%E5%8A%A8%E8%AF%8Die=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank的否定形式http://www.so.com/sq=%E5%BD%A2%E5%BC%8Fie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank可以与表示延续时间的状语连用即动作不发生的状态是可以持续的错Ihavereceivedhisletterforamonth.对Ihaven’treceivedhisletterforalmostamonth.
9.比较since和forSince用来说明动作起始时间,for用来说明动作延续时间长度Ihavelivedhereformorethantwentyyears.IhavelivedheresinceIwasborn..Myaunthasworkedinaclinicsince
1949.Somenewoilfieldshavebeenopenedupsince
1976.IhaveknownXiaoLisinceshewasalittlegirl.MybrotherhasbeenintheYouthLeaguefortwoyears.Ihavenotheardfrommyuncleforalongtime.注意:并非有for作为时间状语的句子http://www.so.com/sq=%E5%8F%A5%E5%AD%90ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank都用现在完成时Iworkedhereformorethantwentyyears.我现在http://www.so.com/sq=%E6%88%91%E7%8E%B0%E5%9C%A8ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank已不在这里工作Ihaveworkedhereformanyyears.现在我仍在这里工作小窍门:当现在完成时+一段时间,这一结构中,我们用下面的公式http://www.so.com/sq=%E5%85%AC%E5%BC%8Fie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank转化,很容易就能排除非延续动词在完成时中http://www.so.com/sq=%E6%97%B6%E4%B8%ADie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank的误使1对TomhasstudiedRussianforthreeyears.=TombegantostudyRussianthreeyearsagoandisstillstudyingitnow.2错Harryhasgotmarriedforsixyears.=Harrybegantogetmarriedsixyearsagoandisstillgettingmarriednow.显然,第二句不对,它应改为Harrygotmarriedsixyearsago.或Harryhasbeenmarriedforsixyears.
10.since的四种用法1since+过去一个时间点如具体的年、月、日期、钟点http://www.so.com/sq=%E9%92%9F%E7%82%B9ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank、1980lastmonthhalfpastsixIhavebeenheresince
1989.2since+一段时间+agoIhavebeenheresincefivemonthsago.3since+从句Greatchangeshavetakenplacesinceyouleft.Considerabletimehaselapsedsincewehavebeenhere.4Itis+一段时间+since从句ItistwoyearssinceIbecameapostgraduatestudent.被动语态的几种类型http://www.so.com/sq=%E7%B1%BB%E5%9E%8Bie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank1主语句中有一个宾语http://www.so.com/sq=%E5%AE%BE%E8%AF%ADie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank的被动语态,如:Hesawherintheshopyesterday.Shewasseenintheshopyesterday.2主语有两个宾语的被动语态LiLeigavemeachemistrybook.IwasgivenachemistrybookbyLiLei.AchemistrybookwasgiventomebyLiLei.3主动句中含宾语补足语http://www.so.com/sq=%E5%AE%BE%E8%AF%AD%E8%A1%A5%E8%B6%B3%E8%AF%ADie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank的句子的被动语态若宾语补足语是不带to的不定式,变为被动语态时,该不定式前要加to此类动词为感官动词:feelhearhelplistentolookatmakeobserveseenoticewatchTheteachermademegooutoftheclassroom.--Iwasmadetogooutoftheclassroombytheteacher.Wesawhimplayfootballontheplayground.--Hewasseentoplayfootballontheplayground.若宾语补足语是带to的不定式,那么被动语态仍保留to:MothertoldmenottobelateIwastoldnottobelatebymother.5情态动词+be+过去分词,构成被动语态Coalcanbeusedtoproduceelectricityforagricultureandindustry.6表示据说或相信的词组believeconsiderdeclareexpectfeelreportsayseesupposethinkunderstandItissaidthat…据说Itisreportedthat…据报道Itisbelievedthat…大家相信Itishopedthat…大家希望Itiswellknownthat…众所周知Itisthoughtthat…大家认为Itissuggestedthat…据建议Itistakengrantedthat…被视为当然Ithasbeendecidedthat…大家决定Itmustberememberthat…务必记住的是ItissaidthatshewillleaveforWuhanonTuesday.延续动词与瞬间动词http://www.so.com/sq=%E7%9E%AC%E9%97%B4%E5%8A%A8%E8%AF%8Die=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank1用于完成时的区别延续动词表示经验http://www.so.com/sq=%E7%BB%8F%E9%AA%8Cie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank、经历;瞬间动词表示行为http://www.so.com/sq=%E8%A1%A8%E7%A4%BA%E8%A1%8C%E4%B8%BAie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank的结果,不能与表示段的时间状语连用Hehascompletedthework.他已完成了那项工作表结果I’veknownhimsincethen.我从那时起就认识他了表经历2用于till/until从句的差异延续动词用于肯定句,表示做……直到……瞬间动词用于否定句,表示到……,才……Hedidn’tcomebackuntilteno’clock.他到10点才回来Hesleptuntilteno’clock.他一直睡到10点典型例题
1.Youdon’tneedtodescribeher.I___herseveraltimes.A.hadmetB.havemetC.metD.meet答案B.首先本题后句强调对现在的影响,我知道她的模样,你不用描述再次,severaltimes告知为反复发生的动作,因此用现在完成时
2.---I’msorrytokeepyouwaiting.---Ohnotatall.I___hereonlyafewminutes.A.havebeenB.hadbeenC.wasD.willbe答案A.等待的动作由过去开始,持续到现在,应用现在完成时.不定式作宾语1动词+不定式affordaimappearagreearrangeaskbedecidebothercarechoosecomedaredemanddesiredetermineexpectelectendeavorhopefailhappenhelphesitatelearnlongmeanmanageofferoughtplanpreparepretendpromiserefuseseemtendwaitwishundertake举例:Thedriverfailedtoseetheothercarintime.司机没能及时看见另一辆车Ihappentoknowtheanswertoyourquestion.我碰巧知道你那道问题的答案2动词+不定式;动词+宾语+不定式askbegchooseexpecthatehelpintendlikeloveneedpreferpreparepromisewantwish…Iliketokeepeverythingtidy.我喜欢每件东西都保持整洁Ilikeyoutokeepeverythingtidy.我喜欢你年使每件东西都保持整洁IwanttospeaktoTom.我想和汤姆谈话IwantyoutospeaktoTom.我想让你和汤姆谈话3动词+疑问词+todecideknowconsiderforgetlearnremembershowunderstandseewonderhearfindoutexplaintellPleaseshowushowtodothat.请演示给我们如何去做Therearesomanykindsoftape-recordersonsalethatIcan’tmakeupmymindwhichtobuy.有这么多的录音机http://www.so.com/sq=%E5%BD%95%E9%9F%B3%E6%9C%BAie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank,我都拿不定主意买哪一种注意:疑问词带不定式在句中作成分时,谓语动词http://www.so.com/sq=%E8%B0%93%E8%AF%AD%E5%8A%A8%E8%AF%8Die=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank用单数Thequestionishowtoputitintopractice.问题是怎样把它付诸实施不定式作补语http://www.so.com/sq=%E8%A1%A5%E8%AF%ADie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank1动词+宾语+不定式todoadviseallowappointbelievecausechallengecommandcompelconsiderdeclaredriveenableencouragefindforbidforceguesshireimagineimpelinduceinforminstructinvitejudgeknowlikeorderpermitpersuaderemindreportrequestrequireselectsendstatesupposetellthinktraintrustunderstandurgewarn例句:a.Fatherwillnotallowustoplayonthestreet.父亲不让我们在街上http://www.so.com/sq=%E5%9C%A8%E8%A1%97%E4%B8%8Aie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank玩耍b.Webelievehimtobeguilty.我们相信他是有罪的Find的特殊用法:Find后可用分词http://www.so.com/sq=%E5%88%86%E8%AF%8Die=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank做宾补,或先加形式宾语http://www.so.com/sq=%E5%BD%A2%E5%BC%8F%E5%AE%BE%E8%AF%ADie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank,再加形容词http://www.so.com/sq=%E5%BD%A2%E5%AE%B9%E8%AF%8Die=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank,最后加带to的动词不定式find后也可带一个从句此类动词还有get,haveIfoundhimlyingontheground.Ifounditimportanttolearn.IfoundthattolearnEnglishisimportant.典型例题:Thenextmorningshefoundtheman___inbed,dead.A.lyingB.lieC.layD.laying答案:A.find的宾语后面,用分词或分词短语http://www.so.com/sq=%E7%9F%AD%E8%AF%ADie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank,起宾语补足语作用现在分词http://www.so.com/sq=%E7%8E%B0%E5%9C%A8%E5%88%86%E8%AF%8Die=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank表达主动,也表达正在进行,过去分词表达被动2to+be的不定式结构,作补语的动词Acknowledgebelieveconsiderthinkdeclare声称discoverfancy设想feelfindguessjudgeimagineknowprovesee理解showsupposetake以为understandWeconsiderTomtobeoneofthebeststudentsinourclass.我们认为汤姆是班上最好的学生之一典型例题CharlesBabbageisgenerallyconsidered___thefirstcomputer.A.toinventB.inventingC.tohaveinventedD.havinginvented答案:A.由considertodosth.排除B、D.此句只说明发明这一个事实,不定式后用原形即可而C为现在完成时,发明为点动词http://www.so.com/sq=%E7%82%B9%E5%8A%A8%E8%AF%8Die=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank一般不用完成时,且此处也不强调对现在的影响,因此不选C3tobe+形容词Seemappearbesaidbesupposedbebelievedbethoughtbeknownbereportedhopewishdesirewantplanexpectmean…Thebookisbelievedtobeuninteresting.人们认为这本书http://www.so.com/sq=%E8%BF%99%E6%9C%AC%E4%B9%A6ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank没什么意思4therebe+不定式believeexpectintendlikelovemeanpreferwantwishundrstandWedidn’texpecttheretobesomanypeoplethere.我们没料到会有那么多人http://www.so.com/sq=%E5%A4%9A%E4%BA%BAie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank在哪里http://www.so.com/sq=%E5%9C%A8%E5%93%AA%E9%87%8Cie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank注意:有些动词需用as短语做补语,如regardthinkbelievetakeconsider.WeregardTomasourbestteacher.我们认为汤姆是我们最好的老师Marytookhimasherfather.玛丽把他当作自己的父亲.不定式作主语1It’seasyformetodothat.我做这事太容易了easydifficulthardimportantpossibleimpossiblecomfortablenecessarybetter;thefirstthenextthelastthebesttoomuchtoolittlenotenoughIt’ssonicetohearyourvoice.听到你的声音http://www.so.com/sq=%E5%90%AC%E5%88%B0%E4%BD%A0%E7%9A%84%E5%A3%B0%E9%9F%B3ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank真高兴It’snecessaryforyoutolockthecarwhenyoudonotuseit.当你不用车的时候,锁车是有必要的2It’sverykindofyoutohelpus.他帮助我们,他真好Kindnicestupidrudecleverfoolishthoughtfulthoughtlessbraveconsiderate考虑周到的sillyselfish自私的例句:Itwassillyofustobelievehim.我们真愚蠢,竟然相信了他Itseemedselfishofhimnottogivethemanything.他不给他们任何东西,这显得太自私了注意:1其他系动词如,look,appear等也可用于此句型2不定式作为句子成分http://www.so.com/sq=%E5%8F%A5%E5%AD%90%E6%88%90%E5%88%86ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank时,动词用单数形式3当不定式作主语的句子中又有一个不定式作表语http://www.so.com/sq=%E8%A1%A8%E8%AF%ADie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank时,不能用Itis…to…的句型对Toseeistobelieve.百闻不如一见错Itistobelievetosee.
4.It’sforsb.和It’sofsb.1forsb.常用于表示事物http://www.so.com/sq=%E4%BA%8B%E7%89%A9ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank的特征http://www.so.com/sq=%E7%89%B9%E5%BE%81ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank特点http://www.so.com/sq=%E7%89%B9%E7%82%B9ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank,表示客观形式的形容词,如easyharddifficultinterestingimpossible等:It’sveryhardforhimtostudytwolanguages.对他来说学两门外语http://www.so.com/sq=%E5%A4%96%E8%AF%ADie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank是很难的2ofsb的句型一般用表示人物的性格,品德,表示主观感情或态度的形容词,如goodkindnicecleverfoolishrightIt’sveryniceofyoutohelpme.你来帮助我,你真是太好了for与of的辨别方法:用介词后面的代词http://www.so.com/sq=%E4%BB%A3%E8%AF%8Die=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank作主语,用介词前边的形容词作表语,造个句子如果道理http://www.so.com/sq=%E9%81%93%E7%90%86ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank上通顺用of,不通则用for如:Youarenice.通顺,所以应用ofHeishard.人是困难的,不通,因此应用for3祁使句ImperativeSentence祈使句往往是用来表示说话人http://www.so.com/sq=%E8%AF%B4%E8%AF%9D%E4%BA%BAie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank的请求、命令、要求、建议,等等祈使句的主语常被省略,因为这个主语很明确地是听话人you当然,有时为了强调或表示某种感情,句子也会带上http://www.so.com/sq=%E5%B8%A6%E4%B8%8Aie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank主语祈使句的谓语用动词原形http://www.so.com/sq=%E5%8A%A8%E8%AF%8D%E5%8E%9F%E5%BD%A2ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank;它的否定形式是句首用Dont+动词原形,或是Notto+动词原形例如:Bequietplease!大家请安静Standup!起立!Dontsmokeintheoffice.请不要在办公室吸烟Dontbestandingintherain.别站在雨里http://www.so.com/sq=%E5%9C%A8%E9%9B%A8%E9%87%8Cie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blankNottobecarelesswhenyouredrivingacar.开车时不要粗心大意4感叹句ExclamatorySentence感叹句表示说话人的喜悦、气愤、惊讶等强烈的情绪这类句子中,有很多是由What或How引起的What用来强调名词,How则强调形容词、副词http://www.so.com/sq=%E5%89%AF%E8%AF%8Die=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank或动词这类句子的构成只需将所强调或是说,所感叹的对象放到句首;句子无需倒装,句子要用正常语序当然,如果不用这种句型,而句子无论是那种句子本身又表示了上述的种种情绪,那么该句也就成了感叹句例如:Whatafinedayitistoday!今天天气多好啊!Howfineitistoday!今天天气多好啊!Whatalovelysonyouhave!你有个多可爱的儿子http://www.so.com/sq=%E5%84%BF%E5%AD%90ie=utf-8src=internal_wenda_recommend_textn\thttps://wenda.so.com/q/_blank啊!Howlovelyyoursonis!你的儿子多可爱。