八年级上册英语语法(Unit1-4)

八年级上册英语语法专练（Unit1-4）1．形容词、副词的比较级、最高级的用法as+adj/adv(原级)+asadj/adv(比较级)+thanthe+adj/adv(最高级)adj/adv(比较级)+adj/adv(比较级)越来越…the+adj/adv(比较级)…,the+adj/adv(比较级)…越…,越…2．反身代词的用法我自己你自己他自己她自己它自己我们自己你们自己他们自己反身代词有三种不同的用法：一、非强调用法这种用法通常表示反身代词与句中的主语是同一人。例如：（1）Janeistooyoungtolookafterherself.（简年比太小，以至于不能照看自己）（2）IteachmyselfEnglish.（我自学英语）（3）Hedidn'thurthimself,thankgoodness.(他未伤了他自己，谢天谢地。)二、强调用法反身代词在强调用法中表示强调，即用来加强某个名词或者代词的语气，可译成“亲自”、“本人”。例如：（1）Youmustdoityourself.(你必须自己做)（2）Imyselfdidthehomeworklastnight。（昨晚是我自己做了家庭作业）三、与by搭配byoneself意为：单独地，独自地。例如：（1）Wemustfinishitallbyourselves.（我们必须全靠自己去完成。）（2）Hecanswimallbyhimself.（他能独自一个人游泳。3．祈使句的用法祈使句指的是表示命令、请求、建议或劝告的句子。其主语you常省略，谓语动词用原形，句末用感叹号或句号。1.肯定的祈使句（1）动词原形+其他（2）Be+adj.（3）Let's+动词原形2.否定的祈使句（1）Don't+动词原形（2）Let's(letsb)+not+动词原形3.祈使句的反意疑问句(1)肯定祈使句的反意疑问句反问部分用willyou或won'tyou。(2)否定祈使句的反意疑问句反问部分只用willyou。(3)以let's开头的祈使句反意疑问句反问部分用shallwe。Let'sturnontheTV,shallwe?我们把电视打开，好吗？特别注意letus开头的祈使句的反意疑问句的反问部分应为willyou或won'tyou.如：Letusstayhere,will/won'tyou?请（你）让我们留在这好吗？4．should/hadbetter(not)dosth的用法should应该…hadbetter最好…形容词、副词（原级、比较级和最高级）练习一、用适当形式填空：1.Bobis_________(young)thanFredbut___________(tall)thanFred.2.YingTianisnotas___________(tall)asYongXian.3.Whichis_________(heavy),ahenorachicken?4.Heis______(good)atlearningmaths.Heismuch_______(good)atChineseandheisthe_________(good)atEnglish.5.Heisoneofthe_________(friendly)peopleintheclass,Ithink.6.Adictionaryismuch_________(expensive)thanastory-book.7.Anorangeisalittle______(big)thananapple,butmuch________(small)thanawatermelon.8.TheChangjiangRiveristhe_______(long)riverinChina.9.Myroomisnotas_________(big)asmybrother's.10.--Annieplaysthepianovery___________(well).--Sueplaysit_____(well)thanAnnie.AndSallyplaysitthe__________(well).11.Saturdayismy_________(busy)dayinaweek.12.Hermotherisgetting____________(fat)and________(fat).13.Ithinkit’stooexpensive.I’dlikea_____________(cheap)one.14.Hecomestoschoolmuch____________(early)thanI.15.Thisbookisnotas_____________(interesting)asthatone.16.Yourclassroomis__________(wide)and_________(bright)thanours.17.Practiseas__________(much)asyoucan.18.The________(much),the____________(good).二、单项选择1.Thisboxis________thatone.A.heavythanB.soheavythanC.heavierasD.asheavyas2.Whenwespeaktopeople,weshouldbe__________.A.aspoliteaspossibleB.aspoliteaspossiblyC.aspolitelyaspossibleD.aspolitelyaspossibly3.Thisbookis______thatone,but______thanthatone.A.asdifficultas;expensiveB.asmoredifficultas;moreexpensiveC.asdifficultas;moreexpensiveD.moredifficultas;asexpensive4.Ithinkthestoryisnotso______asthatone.A.interestingB.interestedC.moreinterestingD.mostinteresting5.Ithinkscienceis_______thanJapanese.A.muchimportantB.importantC.muchmoreimportantD.moremuchimportant6.Thesechildrenare________thisyearthantheywerelastyear.A.moretallB.moretallerC.verytallerD.muchtaller7.Mrs.Blackhasgot_______insteadofgettinganybetter.A.morebadB.alittleworseC.muchbadlyD.alotofworse8.Whenwearrived,wefoundthemeetingroomcrowdedwith_______students.A.quiteafewB.onlyafewC.fewD.afewquite9.Thehouseis_______smallforafamilyofsix.A.muchtooB.toomuchC.verymuchD.so10.Hisfatheris________thanhismother.A.olderfouryearsB.asfouryearsolderC.fouryearsolderD.biggerfouryears11.Mathsismorepopularthan_________.A.anyothersubjectB.allthesubjectsC.anysubjectD.othersubject12.Chinaislargerthan_________inAfrica.A.anyothercountryB.othercountriesC.theothercountryD.anycountry13.Atlasthebegantocry__________.A.hardandhardB.morehardandmorehardC.harderandharderD.lesshardandlessharder14._______Ilookatthepicture,_________Ilikeit.A.Thebest;themoreB.Themore;thelessC.Themore;lessD.More;themore15.Ilike_______oneofthetwobooks.A.theolderB.oldestC.theoldestD.older16.Whichdoyoulike_______,teaorcoffee?A.wellB.betterC.bestD.most反身代词练习1.--Whoteaches__________English?--Noone.Iteach__________.A.you;myselfB.your;myselfC.you;meD.yourself;myself2.---Help____tosomecakes,Jim.---Thankyou.A.youB.yourC.yourselfD.yourselves3.—HowwasyourvisittotheWorldParkinBeijing?—Wonderful!Weenjoyed____verymuch.A.itselfB.myselfC.yourselvesD.ourselves4.－Howdidyourunclelearntoplaytheguitar?－By____.A.myselfB.yourselfC.herselfD.himself5.—Icouldlookafter____whenIwasfive.—Really?Ican’tbelieveit.A.myselfB.herselfC.himselfD.yourself祈使句练习1.________methetruth,orI'llbeangry.A.TellingB.TotellC.ToldD.Tell2._______lateagain,Bill!A.Don'ttobeB.Don'tbeC.NotbeD.Benot3._______crosstheroaduntilthetrafficlightsturngreen.A.NotB.Won'tC.Doesn'tD.Don't4.Pleasehelpmecarryit,______?A.willIB.willyouC.shallID.shallwe5.Don'tmakesomuchnoise,______?A.willyouB.won'tyouC.shallweD.doyou6.Kate,_______yourhomeworkheretomorrow.A.bringB.bringsC.tobringD.bringing7.Sindy,________tobehereat8o’clock.A.issureB.issurethatC.willbesureD.besure8.________whenyoucrosstheroad.ADocareBCareCDobecarefulDTobecareful9.________Yourchild.We’lllookafterhim.ANottoworryaboutBDon’tworryaboutCNotworryforDDon’tworrywith10--Youlookrathertired.________stoppingtohavearest?--Allright.AWhynotBHowaboutCWhynottoDwhydon’t11John,readthetextforus,________?AdoesheBwillheCdoyouDwillyou12.Let’sdoitato