人教版八年级英语上册Unit1至Unit4语法易错磨砺卷（含答案）

人教版八年级英语上册Unit1至Unit4语法易错磨砺卷（含答案）适用教材：人教版（2025）英语八年级上册Unit1～Unit4开学头四个单元的语法点看着简单，实际考试里学生丢分的地方往往很集中：复合不定代词作主语时谓语用单数、形容词修饰不定代词要放后面；could表过去能力和礼貌请求的答语；比较级里多余的双比较；最高级前漏掉the。这份专项就把这些易错点挑出来，用改错、填空、选择和句型转换几种方式反复练，最后配了一篇跨单元的小短文把前面四个单元的语法串起来。一、Unit1HappyHoliday：复合不定代词与一般过去时（一）改正下列句子中的错误1.Everyoneareheretoday.Let'sstartourclass._________________________________________2.Didyouboughtanygiftsforyourfriends?_________________________________________3.Wesawanythingfunatthepartylastnight._________________________________________（二）用所给单词的适当形式填空4.Everything______(be)readyforthetrip.Let'sgo!5.Nobody______(know)theanswertothisquestion.6.Thereisn't______(something)inthebox.It'sempty.（三）单项选择7.—Wouldyoulike______todrink?—Somejuice,please.A.somethingB.anythingC.everythingD.nothing8.______wasintheclassroom.Wehadtowaitoutside.A.SomebodyB.AnybodyC.NobodyD.Everybody9.They______agreattimeinBeijinglastsummer.A.haveB.hasC.hadD.willhave10.—______youseethefilmyesterday?—Yes,Idid.A.DoB.DidC.WereD.Are（四）按要求完成句子11.Iboughtsomepostcardsformyfriends.（改为否定句）_________________________________________12.Hewenttothemountainslastweekend.（对wenttothemountains提问）_________________________________________二、Unit2HomeSweetHome：情态动词could与相关句型（一）改正下列句子中的错误13.IcanswimwhenIwassixyearsold._________________________________________14.—Couldyoupleasehelpme?—Yes,Icould._________________________________________15.Shekeepsthebookfortwoweekslastmonth._________________________________________（二）用适当的词填空（每空一词）16.WhenIwasyoung,I______rideabike,butnowIcan.17.Youcan______thedictionaryforthreedays,andthenyoumustreturnit.18.—______Iuseyourpen?—Sure,hereyouare.（三）单项选择19.—CouldIopenthewindow?—______.A.Yes,youcouldB.No,youcouldn'tC.Yes,youcanD.Sure,goahead20.He______playthepianowellwhenhewasseven.A.canB.couldC.mayD.must21.Don'tgetoffthebus______itstops.A.untilB.whenC.becauseD.if22.—HowlongcanI______thebook?—Foraweek.A.borrowB.lendC.keepD.buy（四）按要求完成句子23.IcouldcookdinnerwhenIwasten.（改为否定句）_________________________________________24.—Couldyoupleasepassmethesalt?（作肯定回答）—_________________________________________三、Unit3SameorDifferent?：形容词与副词的比较级（一）改正下列句子中的错误25.Sheismoretallerthanhersister._________________________________________26.Heisastallthanhisfather._________________________________________27.Mybookismoreinterestingasyours._________________________________________（二）用所给单词的适当形式填空28.Thisquestionis______(easy)thanthatone.29.Heworks______(carefully)thanbefore.30.Theweathertodayismuch______(good)thanyesterday.（三）单项选择31.Lucyis______thanherbrother.A.moreoutgoingB.outgoingC.mostoutgoingD.asoutgoing32.Thereddressis______thantheblueone.A.alittleexpensiveB.muchmoreexpensiveC.verymoreexpensiveD.moremuchexpensive33.Englishisas______asChineseinourschool.A.importantB.moreimportantC.mostimportantD.importanter34.—Whois______,TomorJack?—Tomis.A.tallB.tallerC.tallestD.thetallest（四）按要求完成句子35.Thisbookisnotasinterestingasthatone.（改为同义句，用than）_________________________________________36.Tomisthetallestboyinhisclass.（改为同义句，用anyother）_________________________________________四、Unit4AmazingPlantsandAnimals：形容词与副词的最高级（一）改正下列句子中的错误37.Qomolangmaishighestmountainintheworld._________________________________________38.Ofthetwosisters,Lucyisthetallest._________________________________________39.Thisflowerismorebeautifulinthegarden._________________________________________（二）用所给单词的适当形式填空40.Thegiraffeisthe______(tall)animalonland.41.Ofallthesubjects,IlikeEnglish______(good).42.Thisisoneofthe______(beautiful)placesIhaveeverbeento.（三）单项选择43.—______oftheseanimalsisthebiggest?—Theelephant,Ithink.A.WhichB.WhoC.WhatD.Whose44.Springisthe______seasonoftheyear.A.goodB.betterC.bestD.well45.Thisis______filmIhaveeverseen.A.thebestB.abestC.bestD.better46.Hejumped______intheschoolsportsmeeting.A.highB.higherC.highestD.thehighest（四）按要求完成句子47.WangPingistallerthantheotherstudentsinhisclass.（改为同义句，用最高级）_________________________________________48.NooneinourclassistallerthanLiLei.（改为同义句，用最高级）_________________________________________五、综合运用（跨单元语篇）用所给单词的适当形式填空，完成下面这篇短文。Inourclass,everyone(49)______(have)adream.Lastyear,I(50)______(visit)theGreatWallwithmyparents.Itisoneofthe(51)______(wonder)placesintheworld.Myfathertoldme,“Nothing(52)______(be)difficultwhenyoutryyourbest.”NowIstudy(53)______(hard)thanbefore,andIwanttobethe(54)______(good)studentinmyclass.

参考答案与解析答案按单元列出，每题都附了简要说明，主要讲这个考点平时容易错在哪里。对答案时先看学生自己的答案和标准答案差在哪一步，再看解析里对应的易错点，比直接抄正确答案更有用。一、Unit1HappyHoliday1.Everyoneare→Everyoneis。复合不定代词everyone作主语时，谓语动词用单数形式。2.Didyoubought→Didyoubuy。一般过去时的疑问句用助动词did，后面的动词用原形。3.anythingfun→somethingfun。肯定句中表示“某物”用something；形容词fun修饰不定代词要放在后面。4.is5.knows6.anything4.复合不定代词everything作主语，谓语用单数。5.nobody表示“没有人”，作主语谓语用单数。6.否定句中用anything，与句末的empty呼应。7.A。表示请求、希望对方肯定回答时，用something而不用anything。8.C。从“我们只好在外面等”可知教室里没有人，nobody表示“没有人”。9.C。lastsummer是过去的时间，用一般过去时had。10.B。yesterday提示一般过去时，一般疑问句用Did开头。11.Ididn'tbuyanypostcardsformyfriends.12.Whatdidhedolastweekend?11.否定句中some要改为any。12.对“做的事”提问用Whatdid...do。二、Unit2HomeSweetHome13.Icanswim→Icouldswim。表示过去的能力用could，不是can。14.答语应改为Yes,sure.或Ofcourse.。Couldyou...?表示礼貌请求，肯定回答不用could，要用sure、ofcourse等。15.keeps→kept。lastmonth是过去的时间，keep的过去式是kept。16.couldn't（年轻时不会骑车，但现在会，过去能力用could的否定式）17.keep（keep表示“借阅一段时间”，可以和forthreedays搭配）18.Could或May（礼貌请求许可，答语是Sure,hereyouare）19.D。CouldI...?表示请求许可，肯定答语用Sure,goahead.等，不用could回答。20.B。whenhewasseven表示过去，过去的“能”用could。21.A。not...until表示“直到……才”，“车停稳之前别下车”。22.C。问借书借多久用HowlongcanIkeep...?，borrow是短暂性动词。23.Icouldn'tcookdinnerwhenIwasten.24.Sure./Ofcourse./Noproblem.23.could的否定式是couldn't。24.Couldyouplease...?的肯定回答用Sure等，不用could。三、Unit3SameorDifferent?25.moretaller→taller。tall是单音节形容词，比较级直接加-er，不能和more连用。26.astallthan→astallas。as...as中间用原级，表示“和……一样……”。27.moreinterestingas→moreinterestingthan。比较级后接than，不接as。28.easier29.morecarefully30.better28.easy是辅音字母加y结尾，变比较级去y加-ier。29.carefully是多音节副词，比较级用morecarefully。30.much修饰比较级，good的比较级是better。31.A。outgoing是多音节形容词，比较级用moreoutgoing；than提示用比较级。32.B。much可以修饰比较级，表示“贵得多”。33.A。as...as中间用原级important。34.B。两个人比较用比较级，taller。35.Thatbookismoreinterestingthanthisone.36.Tomistallerthananyotherboyinhisclass.35.“这本书不如那本有趣”也就是“那本比这本有趣”。36.“最高级”与“比较级+thananyother”可以互换。四、Unit4AmazingPlantsandAnimals37.highest→thehighest。形容词最高级前要加定冠词the。38.thetallest→thetaller。“两者之中较……的一个”用the+比较级。39.