高考英語重點(diǎn)語法知識點(diǎn)歸納全齊

高考英語重點(diǎn)語法知識點(diǎn)歸納全齊高中階段的英語學(xué)習(xí)，其實(shí)就是學(xué)語法、記單詞和研究并熟練題型。高考英語語法項(xiàng)目匯總1、名詞(1)可數(shù)名詞及其單復(fù)數(shù)(2)不可數(shù)名詞(3)專有名詞(4)名詞所有格2、代詞(1)人稱代詞：主格和賓格形式(2)物主代詞：形容詞與名詞性形式(3)反身代詞：myself,himself,ourselves,etc.(4)指示代詞this,that,these,those(5)不定代詞some,any,no,etc.(6)疑問代詞what,who,whose,which,etc.3、數(shù)詞(1)基數(shù)詞(2)序數(shù)詞4、介詞和介詞短語詞：匯表中所列介詞的基本用法5、連詞：詞匯表中所列連詞的基本用法6、形容詞(比較級和最高級)（1）作定語、表語、賓語補(bǔ)足語的基本用法（2）比較等級（原級、比較級、最高級）的基本用法①構(gòu)成-er,-est;more,themost②基本句型as+原級形式+as...notas（so）+原級形式+as...比較級形式+than...the+最高級形式+...in（of）...7、副詞（比較級和最高級）（1）表示時(shí)間、地點(diǎn)、方式、程度等的基本用法（2）疑問副詞when,where,how（3）比較等級（原級、比較級、最高級）①構(gòu)成-er,-est;more,themost②基本句型as+原級形式+as...notas（so）+原級形式+as...比較級形式+than...the+最高級形式+...in（of）...8、冠詞：一般用法9、動(dòng)詞（1）行為動(dòng)詞或?qū)嵙x動(dòng)詞：①及物動(dòng)詞②不及物動(dòng)詞（2）連系動(dòng)詞be,look,turn,get,become,etc.（3）助動(dòng)詞be,do,have,shall,will,etc.（4）情態(tài)動(dòng)詞can,may,must,need,etc.10、時(shí)態(tài)（1）一般現(xiàn)在時(shí)Igetupatsixo'clockeverymorning.Hedoesn'tspeakRussian.Theyareverybusy.Themoonmovesroundtheearth.Whenyouseehim,tellhimtocometomyplace.I'llgotoseeyoutonightifI'mfree.（2）一般過去時(shí)IwasinGradeOnelastyear.Igotupatfiveyesterday.（3）一般將來時(shí)①shall（will）+動(dòng)詞原形Ishall（will）gotoyourschooltomorrowafternoon.Shewillbeheretomorrow.②begoingto+動(dòng)詞原形I'mgoingtohelphim.（4）現(xiàn)在進(jìn)行時(shí)We'rereadingthetextnow.They'rewaitingforabus.（5）現(xiàn)在完成時(shí)Ihavealreadypostedtheletter.Theyhavelivedherefortenyears.（6）過去進(jìn)行時(shí)Wewerehavingameetingthistimeyesterday.TheteacherwastalkingtosomeparentswhenIsawher.（7）過去完成時(shí)WehadlearnedfourEnglishsongsbytheendoflastyear.ThefilmhadalreadybegunwhenIgottothecinema.ShesaidthatshehadnotheardfromhimsinceheleftBeijing.（8）過去將來時(shí)Hesaidhewouldgotothecinemathatevening.BettysaidshewasgoingtovisitherunclenextSunday.11、被動(dòng)語態(tài)（一般現(xiàn)在時(shí)，一般過去時(shí)，含有情態(tài)動(dòng)詞，一般將來時(shí)）（1）一般現(xiàn)在時(shí)的被動(dòng)語態(tài)Englishistaughtinthatschool.（2）一般過去時(shí)的被動(dòng)語態(tài)Thesongwaswrittenbythatworker.（3）一般現(xiàn)在時(shí)帶情態(tài)動(dòng)詞的被動(dòng)語態(tài)Shemustbesenttohospitalatonce.（4）一般將來時(shí)的被動(dòng)語態(tài)Thehomeworkwillbedoneintwohours.12、非謂語動(dòng)詞（1）動(dòng)詞不定式（全部掌握）①作主語Tolearnaforeignlanguageisnoteasy.Itisnoteasytolearnaforeignlanguage.②作賓語Theybegantoread.③作賓語補(bǔ)足語Jimaskedmetohelphimwithhislessons.Weoftenheardhersing.④作定語Ihaveanimportantmeetingtoattend.⑤作狀語Shewenttoseehergrandmayesterday.⑥用在how,when,where,what,which等之后Idon'tknowhowtouseacomputer.Doyouknowwhentostart?Hedidn'tknowwhattodonext.(2)動(dòng)詞的-ing形式(3)動(dòng)詞的-ed形式13、構(gòu)詞法(1)合成法：classroom,something,reading-room(2)派生法：worker,drawing,quickly,careful,kindness,cloudy,unhappy(3)轉(zhuǎn)化法：hand(n.)—hand(v.)dry(adj.)—dry(v.)(4)縮寫和簡寫1414、句子種類（1）陳述句（肯定式和否定式）（2）疑問句:一般疑問句、特殊疑問句、選擇疑問句、反意疑問句（3）祈使句（肯定式和否定式）（4）感嘆句15、句子成分（1）主語Bettylikeshernewbike.Hegetsupearlyeveryday.Tolearnaforeignlanguageisnoteasy.（2）謂語（主謂一致）Weworkhard.Theboycaughtabird.Heismybrother.Theyalllookfine.（3）表語Hersisterisanurse.It'sme.I'mready.Hegotangry.Wewereathomelastnight.Hiscupisbroken.（4）賓語Tomboughtastory-book.Isawhimyesterday.Hewantedtohaveacupoftea.（5）直接賓語和間接賓語Hegavemesomeink.Ourteachertoldusaninterestingstory.（6）賓語補(bǔ)足語CallherXiaoLi.Youmustkeeptheroomclean.Johnaskedmetohelphim.（7）定語Thisisagreenjeep.Thisisanappletree.Arethesestudentsyourclassmates?Winteristhecoldestseasonoftheyear.Ihavesomethingtotellyou.（8）狀語Youarequiteright.ShewillarriveinBeijingonMonday.Hestoppedtohavealook.16、簡單句的基本句型第一種：主語＋連系動(dòng)詞＋表語（S＋V＋P）Thebikeisnew/intheroom.第二種：主語＋不及物動(dòng)詞(S＋V)Heswims.第三種：主語＋及物動(dòng)詞＋賓語(S＋V＋O)Childrenoftensingthissong.第四種：主語＋及物動(dòng)詞＋間接賓語＋直接賓語(S＋V＋I(xiàn)O＋DO)Sheshowedherfriendsallherpictures.第五種：主語＋及物動(dòng)詞＋賓語＋賓語補(bǔ)足語(S＋V＋O＋C)Wekeepourclassroomcleanandtidy.第六種：therebe句型17、主謂一致—Didyougototheshowlastnight?—Yeah.Everyboyandgirlinthearea invitedA．wereB．havebeenC．hasbeenD．was【答案】D【解析】考查動(dòng)詞時(shí)態(tài)和主謂一致。根據(jù)問句的時(shí)態(tài)可知此處時(shí)態(tài)用一般過去時(shí)。And連接的單數(shù)可數(shù)名詞作主語，其前用every,each,no,manya等來修飾時(shí)，謂語動(dòng)詞用單數(shù)形式，故本題選D。A項(xiàng)主謂一致錯(cuò)誤；B項(xiàng)時(shí)態(tài)、主謂一致錯(cuò)誤；C項(xiàng)時(shí)態(tài)錯(cuò)誤。18、并列復(fù)合句Helikesmaths,butheneedshelp.Ihelphimandhehelpsme.19、主從復(fù)合句（1）賓語從句Hesaid（that）hefeltsick.ItakebackwhatIsaid.Idon'tknowwhether（if）shestillworksinthefactory.Ican'ttellwhoisthere.CanyoutellmewheretheSummerPalaceis?（2）狀語從句ThetrainhadleftwhenIgottothestation.I'llgowithyoutothecinemathisafternoonifI'mfree.Thestudentswenttothefarmbecausethefarmersneededsomehelp.Theearthisbiggerthanthemoon.Hewassotiredthathecouldn'twalkon.Jackworkedhardsothathemightgetagoodjob.DoctorWangwenttothehospitalthoughitrainedheavily.（3）定語從句Findthegirlwhoiswearingaredskirt.Showmethepicturethatyoulikebest.Colourthebirdswhich（that）areflying.（4）主語從句（5）同位語從句（6）表語從句20、直接引語與間接引語“IwillgotoShijiazhuangtomorrow”，momsaid.玲MomsaidshewouldgotoShijiazhuangthenextday.21、省略一、祈使句自然可省去主語，如：Leavehiminpeace!不要去打擾他！Comeatoneo'clocksharp.準(zhǔn)一點(diǎn)鐘來。Listentome,children!聽我講，孩子們！Lookbothwaysbeforeyoucrosstheroad.過馬路之前要向兩邊看看。二、除祈使句外，還有其他省去主語的情況，如：Don'tknow.我不知道。（省去主語I）Begyourpardon.請?jiān)彙＃ㄊ∪ブ髡ZI）Hadagoodtime,didn'tyou?玩得很好，不是嗎？（省去主語you）Doesn'tlooktoowell.他臉色不大好。（省去主語he或she）Lookslikerain.像是要下雨了。（省去主語it）三、Mustbesomebodywaitingforyou.一定是有人在等你。Appearstobeabigcrowdinthehall.大廳里似乎有一大群人。22、倒裝一、全部倒裝全部倒裝是指將句子中的謂語動(dòng)詞全部置于主語之前。此結(jié)構(gòu)通常只用與一般現(xiàn)在時(shí)和一般過去時(shí)。常見的結(jié)構(gòu)有：here,there,now,then,thus等副詞置于句首，謂語動(dòng)詞常用be,come,go,lie,run。例如：Theregoesthebell.鈴聲漸漸消失了。Thencamethechairman.然后主席就來了Hereisyourletter.這是你的信。表示運(yùn)動(dòng)方向的副詞或地點(diǎn)狀語置于句首，謂語表示運(yùn)動(dòng)的動(dòng)詞。例如：Outrushedamissilefromunderthebomber.轟炸機(jī)下面發(fā)出了一顆導(dǎo)彈。Aheadsatanoldwoman.注意：上述全部倒裝的句型結(jié)構(gòu)的主語必須是名詞，如果主語是人稱代詞則不能完全倒裝。例如：Herehecomes.他來了。Awaytheywent.他們走了。二、部分倒裝部分倒裝是指將謂語的一部分如助動(dòng)詞或情態(tài)倒裝至主語之前。如果句中的謂語沒有助動(dòng)詞或情態(tài)動(dòng)詞，則需添加助動(dòng)詞do,does或did,并將其置于主語之前。1.句首為否定或半否定的詞語，如no,not,never,seldom,little,hardly,atnotime,innoway,notuntil...等。例如：NeverhaveIseensuchaperformance.我從來沒看過這樣的表演。Nowherewillyoufindtheanswertothisquestion.你在哪兒都不會找到這個(gè)問題的答案。Notuntilthechildfellasleepdidthemotherleavetheroom.媽媽直到孩子睡著才離開房間。注意：當(dāng)Notuntil引出主從復(fù)合句，主句倒裝，從句不倒裝。注意：如否定詞不在句首不倒裝。例如：Ihaveneverseensuchaperformance.我從來沒看過這樣的表演。Themotherdidn'tleavetheroomuntilthechildfellasleep.媽媽直到孩子睡著才離開房間。帶有否定意義的詞放在句首，語序需要部分倒裝。常見的詞語有：not,never,seldom,scarcely,barely,little,atnotime,notonly,notonce,underoncondition,hardly.when,nosooner.than.等。例如：Notonlydidherefusethegift,healsoseverelycriticizedthesender.他不僅拒收了禮品，還狠狠批評了送禮的人。Hardlyhadshegoneoutwhenastudentcametovisither.她剛要出門時(shí)有個(gè)學(xué)生來找她。Nosoonerhadshegoneoutthanastudentcametovisither.她剛要走時(shí)一個(gè)學(xué)生來看她。注意：只有當(dāng)Notonly…butalso連接兩個(gè)分句時(shí)，才在第一個(gè)分句用倒裝結(jié)構(gòu)。如果置于句首的Notonly…butalso僅連接兩個(gè)并列詞語，不可用倒裝結(jié)構(gòu)。例如：NotonlyyoubutalsoIamfondofmusic.我和你都喜歡音樂。3.表示“也”、“也不”的so,neither,nor放在句首時(shí)，句子作部分倒裝。例如：TomcanspeakFrench.SocanJack.Tom能說法語，我也能。Ifyouwon'tgo,neitherwillI.如果你不去，我也不去。注意：當(dāng)so引出的句子用以對上文內(nèi)容加以證實(shí)或肯定時(shí)，不可用倒裝結(jié)構(gòu)。意為“的確如此”。例如：TomaskedmetogotoplayfootballandsoIdid.Tom讓我去踢足球，我去了。---It'sraininghard.---Soitis.---雨下得很大。---的確很大。4.only放在句首，強(qiáng)調(diào)狀語(副詞，介詞短語或狀語從句等)，全句語序要部分倒裝。例如：Onlyinthisway,canyoulearnEnglishwell.你只有用這種方法才能學(xué)好英語。Onlyafterbeingaskedthreetimesdidhecometothemeeting.他被請了三次才來開會。注意：如果句子為主從復(fù)合句，則主句倒裝，從句不倒裝Onlywhenheisseriouslyill,doesheeverstayinbed.他只有病得非常嚴(yán)重時(shí)才會臥床休息。三、as,though引導(dǎo)的倒裝句as/though引導(dǎo)的讓步從句必須將表語或狀語提前(形容詞，副詞，分詞，實(shí)義動(dòng)詞提前)。此時(shí)應(yīng)注意：1)句首名詞不能帶任何冠詞；2)句首是實(shí)義動(dòng)詞，其他助動(dòng)詞放在主語后。如果實(shí)義動(dòng)詞有賓語和狀語，隨實(shí)義動(dòng)詞一起放在主語之前。例如：Tryhardashewill,heneverseemsabletodotheworksatisfactorily.盡管他愿意努力工作，但是他好像從來都不能令他的工作滿意。注意： 讓步狀語從句中，有though,although時(shí)，后面的主句不能有but,但是though和yet可連用。四、其他部分倒裝so…that句型中的so位于句首時(shí)，需倒裝。例如：Sofrightenedwashethathedidnotdaretomoveaninch.他害怕得動(dòng)都不敢動(dòng)。在某些表示祝愿的句型中,例如：Mayyouallbehappy.望大家開心愉快。在虛擬語氣條件句中從句謂語動(dòng)詞有were,had,should等詞，可將if省略，把were,had,should移到主語之前,采取部分倒裝。例如：WereIyou,Iwouldtryitagain.如果我是你,我就再試一次。23、強(qiáng)調(diào)一、強(qiáng)調(diào)句型為了強(qiáng)調(diào)句子的某一成分(通常是主語、賓語、或狀語)，常用強(qiáng)調(diào)句型：Itis(was)+被強(qiáng)調(diào)部分+that(who)…表示強(qiáng)調(diào)的it在句子中作主句的主語；被強(qiáng)調(diào)部分可以是主語，賓語，表語或狀語；強(qiáng)調(diào)的主語如果是人，that和who都可用。如:LastnightIsawafilmintheYouthPalace.強(qiáng)調(diào)主語：ItwasIthat(or:who)sawafilmintheYouthPalacelastnight.強(qiáng)調(diào)賓語：ItwasafilmthatIsawintheYouthPalacelastnight.強(qiáng)調(diào)地點(diǎn)狀語：ItwasintheYouthPalacethatIsawafilmlastnight.強(qiáng)調(diào)時(shí)間狀語：ItwaslastnightthatIsawafilmintheYouthPalace.另外,還要注意下面幾點(diǎn)：1)在強(qiáng)調(diào)主語時(shí)，that后的謂語動(dòng)詞要與被強(qiáng)調(diào)者保持人稱和數(shù)的一致。如：ItisIwhoamateacher.2）即使被強(qiáng)調(diào)的主語是復(fù)數(shù)，主句中的謂語動(dòng)詞也用單數(shù)。如：Itistheywhooftenhelpmewithmylessons.3）在強(qiáng)調(diào)時(shí)間、地點(diǎn)、原因或方式狀語時(shí)，不能用when,where,why或how,而要用that。如：Itwasbecausehermotherwasillthatshedidn'tgowithus.ItwasonlywhenIrereadhispoemsrecentlythatIbegantoappreciatetheirbeauty.Itwasthehousethatthemurderhappened.4）在強(qiáng)調(diào)not…until結(jié)構(gòu)中由until短語（或從句）表示的時(shí)間狀語時(shí)，要用固定的強(qiáng)調(diào)句型：Itis（was）notuntil……that.……注意此時(shí)原句的not...until要變成notuntil,that從句中的謂語動(dòng)詞要用肯定式。如：Myfatherdidn'tcomehomeuntil12o'clocklastnight.Itwasnotuntil12o'clocklastnightthatmyfathercamehome.Ididn’trealizeshewasafamousfilmstaruntilshetookoffherdarkglasses.ItwasnotuntilshetookoffherdarkglassesthatIrealizedshewasafamousfilmstar.5)原句的謂語動(dòng)詞如果是現(xiàn)在或?qū)淼母鞣N時(shí)態(tài)，用Itis...that(who)…；如果原句謂語動(dòng)詞是過去各種時(shí)態(tài)，則用Itwas…that(who)…6)在強(qiáng)調(diào)一般疑問句中的某一成分時(shí)，主句要用一般疑問句的語序。that后面的原句其余部分在移走了被強(qiáng)調(diào)部分后詞序及詞形都不可以改動(dòng)。如：DidthishappeninBeijing?WasitinBeijingthatthishappened?7)特殊疑問句中只有疑問詞可以強(qiáng)調(diào)，其強(qiáng)調(diào)結(jié)構(gòu)是“疑問詞+is(was)itthat……?"如：Wherewereyouborn?Wherewasitthatyouwereborn?8）強(qiáng)調(diào)句型容易和句型Itis/was+名詞+that名詞從句混淆。如果把構(gòu)成強(qiáng)調(diào)句型結(jié)構(gòu)的詞Itis（was）…that（who）…去掉，被強(qiáng)調(diào)部分歸位后，應(yīng)該能夠形成一個(gè)完整的句子（這也是判斷是否是強(qiáng)調(diào)句型的方法）。但后者的Itis/was...that是不可去掉的，否則that前的名詞就找不到位置，原句也不再成立，如下面這個(gè)句子如去掉Itis/was...that就不再完整：Itwastheruleoftheschoolthatthepupilsshouldweartheirschooluniforms.強(qiáng)調(diào)句型還容易跟Itis/was+形容詞+that名詞從句這一句型混淆。如：Itisclear（obvious,true,possible,certain）that該句型中it是形式主語，真正的主語是that引導(dǎo)的主語從句，常譯為"清楚（顯然，真的，肯定…）”是主語從句最常見的一種結(jié)構(gòu)。Itisveryclearthathe’sroundandtalllikeatree.Thathe’sroundandtalllikeatreeisveryclear.9）強(qiáng)調(diào)句可以用作賓語從句。如：Hetoldmethatitwasbecausehewaslateforclassthathewaspunished.Ireallycan’trememberwhereitwasthatIfirstmettheman.10）強(qiáng)調(diào)句型可有如下變體：Itis/was變成“情態(tài)動(dòng)詞+be”。如：Itmaybemybikethatheisriding.Itmusthavebeenthemanagerthatspoketoyou.11）與疑問詞連用構(gòu)成特殊疑問句和感嘆句。如：WhomwasitthatMr.Smithsawintheparkyesterday?Whyisitthatsilverisnotwidelyusedasaconductor?Whatabeautifulpictureitisthatyouhavedrawn!12）被強(qiáng)調(diào)的名詞或代詞可帶有一個(gè)定語從句。如：WasitBill,whoplaysfootballwell,thathelpedtheblindmancrosstheroad?Itwasintheschool,where（or：inwhich）Ioncestudied,thatweholdaparty.Wasitinthehouse,whichwevisitedlastyear,thatthemurderhappened?二、用助動(dòng)詞do或其變化形式does,did來強(qiáng)調(diào)句中謂語動(dòng)詞，用來加強(qiáng)陳述句和祈使句的語氣，譯作“的確”，“一定”，“確實(shí)”。如：Hedidsendyoualetterlastweek.We’repleasedthatshedoesintendtocome.Dowritetomewhenyougetthere．三、用倒裝句來加強(qiáng)語氣。如：Onlyinthiswaycanwesolvethisproblem．NeverwillChinabethefirsttousenuclearweapons.Proudasthesenoblesare,theyareafraidtoseeme.Infrontofthefarmhousetheresatalittleboy.四、用形容詞，副詞或者否定詞very,never,ever,even,still,single,simply,just,only,too等來表示強(qiáng)調(diào)。如：Atthatverymonentheheardacryforhelp.Ican'tevenrememberthenameofthatoldfriendofmine.Notasinglepersonhasbeenintheofficethisafternoon．YouaretheonlypersonherewhocanspeakChinese．ThisisjustwhatIwanted．五、用what引導(dǎo)的名詞性從句或wh-疑問詞+ever構(gòu)成的復(fù)合詞引導(dǎo)的狀語從句來強(qiáng)調(diào)從句中的主語,賓語或狀語等。如：WhatMarydoeseverydayistogivepianolessons.Wheneveryoucometome,youcancomerightin.六、反復(fù)使用同一個(gè)詞來加強(qiáng)語氣,可反復(fù)使用詞的一般是動(dòng)詞,副詞,形容詞和名詞。如：Heworked(and)workeduntillateatnight.Theywalkedformilesandmiles．I'llnever,neverforgetyou.七、用“atall”，“ineveryway”，“innoway”,“byallmeans”，“bynomeans”，“onlytoo”，“alltoo”，“buttoo”，“inheaven”，“intheworld”，“inhell”，“onearth”，“underthesun”等來加強(qiáng)疑問或否定語氣。如：Whereintheworlddidyougojustnow?Whatonearthareyoudoing?She'snotintheleastangrywithme.Theclerkisnotatallfitforthepost.八、用感嘆句來表示強(qiáng)烈的感情，突出說話人的情感。如：Howinterestingastoryitis！九、用反身代詞表示強(qiáng)調(diào)。如：Imyselfwillseeheroffatthestation．Youcandoitwellyourself．十、用破折號、黑體字也可以表示強(qiáng)調(diào)，加強(qiáng)語氣：It'sbecauseofhardwork—tenyearsofhardwork．24、虛擬語氣概念虛擬語氣用來表示說話人的主觀愿望或假想，所說的是一個(gè)條件，不一定是事實(shí)，或與事實(shí)相反。在條件句中的應(yīng)用條件句可分為兩類，一類為真實(shí)條件句，一類為非真實(shí)條件句。非真實(shí)條件句表示的是假設(shè)的或?qū)嶋H可能性不大的情況，故采用虛擬語氣。真實(shí)條件句真實(shí)條件句用于陳述語氣，假設(shè)的情況可能發(fā)生，其中if是如果的意思。時(shí)態(tài)關(guān)系句型：條件從句主句一般現(xiàn)在時(shí)shall/will+動(dòng)詞原形Ifhecomes,hewillbringhisviolin.非真實(shí)條件句1)時(shí)態(tài)：可以表示過去，現(xiàn)在和將來的情況。它的基本特點(diǎn)是時(shí)態(tài)退后。a.同現(xiàn)在事實(shí)相反的假設(shè)。句型：條件從句主句一般過去時(shí)should(would)+動(dòng)詞原形Iftheywerehere,theywouldhelpyou.b.表示于過去事實(shí)相反的假設(shè)。句型：條件從句主句過去完成時(shí)should(would)have+過去分詞Ifshehadworkedharder,shewouldhavesucceeded.Thericewouldnothavebeenburntifyouhadbeenmorecareful.IfmylawyerhadbeenherelastSaturday,hewouldhavepreventedmefromgoing.Ifhehadcomeyesterday,Ishould/wouldhavetoldhimaboutit.含義：Hedidnotcomeyesterday,soIdidnottellhimaboutit.Ifhehadnotbeenillandmissedmanyclasses,hewouldhavemadegreaterprogress.含義：Hewasillandmissedmanylessons,sohedidnotmakegreaterprogress.c.表示對將來的假想句型：條件從句主句一般過去時(shí)should+動(dòng)詞原形were+不定式would+動(dòng)詞原形should+動(dòng)詞原形Ifyousucceeded,everythingwouldbeallright.Ifyoushouldsucceed,everythingwouldbeallright.Ifyouweretosucceed,everythingwouldbeallright.混合條件句主句與從句的動(dòng)作發(fā)生在不同的時(shí)間，這時(shí)主，從句謂語動(dòng)詞的虛擬語氣形式因時(shí)間不同而不同，這叫做混合條件句。Ifyouhadaskedhimyesterday,youwouldknowwhattodonow.（從句與過去事實(shí)相反，主句與現(xiàn)在事實(shí)相反。）Ifithadrainedlastnight（過去）,itwouldbeverycoldtoday（現(xiàn)在）.虛擬條件句的倒裝虛擬條件句的從句部分如果含有were,should,或had,可將if省略，再把were,should或had移到從句句首，實(shí)行倒裝。Weretheyherenow,theycouldhelpus.=Iftheywereherenow,theycouldhelpus.Hadyoucomeearlier,youwouldhavemethim=Ifyouhadcomeearlier,youwouldhavemethim.Shoulditrain,thecropswouldbesaved.=Wereittorain,thecropswouldbesaved.注意：在虛擬語氣的從句中，動(dòng)詞‘be’的過去時(shí)態(tài)一律用‘仙?*‘，不用was，即在從句中be用were代替。IfIwereyou,Iwouldgotolookforhim.如果我是你，就會去找他。Ifhewerehere,everythingwouldbeallright.如果他在這兒，一切都會好的。特殊的虛擬語氣詞：should1)Itisdemanded/necessary/apity+that..結(jié)構(gòu)中的主語從句的謂語動(dòng)詞要用should加動(dòng)詞原形，should可省略。句型：(1)suggestedItis(2)importantthat.+(should)do(3)apity(1)suggested,ordered,proposed,required,demanded,requested,insisted；+(should)do(2)important,necessary,natural,strangeapity,ashame,nowonder(3)Itissuggestedthatwe(should)holdameetingnextweek.Itisnecessarythathe(should)cometoourmeetingtomorrow.2)在賓語從句中的應(yīng)用在表示命令、建議、要求等一類動(dòng)詞后面的從句中。order,suggest,propose,require,demand,request,insist,command,insist+(should)doIsuggestthatwe(should)holdameetingnextweek.Heinsistedthathe(should)besentthere.注意：如suggest,insist不表示“建議”或“堅(jiān)持要某人做某事時(shí)”，即它們用于其本意“