一、選擇題1.

Treesareveryimportant.Wecan't______.A.cutthemdownB.cutitdownC.cutdownthemD.cutdownit2.

Ilikeclothes______.A.madeofB.makesofC.makingofD.madeby3.

—Allaroundtheworldmanywildanimalsareindanger.—this.A.needtodosomething______this.A.tostopB.stoppingC.stopD.stopped4.

—______?—Heistallandstrong.A.WhatdoeshelikeB.HowishelikeC.WhatdoeshelooklikeD.Howdoeshelooklike5.

Jillis______8yearoldgirl.Sheusuallywears______uniformatschool.A.a;aB.a;anC.an;anD.an;a6.

Lily'sdreamistobeadancer.Shepractises______everyday.A.danceB.todanceC.dancesD.dancing7.

Wehavelotsoffun______gamesinEnglishclasses.A.PlayB.toplayC.playingD.plays8.Pleaseremember______yourmotheraboutit.A.tellingB.totellC.sayingD.tosay9.

Ihave______homeworktodotoday.A.toomanyB.toomuchC.alotofD.BandC10.

MyEnglishteacherisstrict______usandalsofriendly______us.A.with;inB.in;toC.with;toD.in;with11.

Whattimedoyouusually______homefromschool?A.gettoB.arriveC.arriveinD.arriveat12.

—MustItaketheNo.6busthere?Itmaytakememoretime.—No,you______.Youcangotherebytaxitosavetime.A.mustn’tB.needn’tC.can’tD.don’thave13.

Somepeopledon’t______thegreenmanontheroad.A.waitforB.findoutC.pickupD.putout14.—Mybrotherdoesn’tlikemilk.Whataboutyou?—Idon’t,______.A.eitherB.neitherC.tooD.also15.

—MayIstopmycarhere?—No,you______.It'snotaparkingarea.maynotB.mustn’tC.needn’tD.don’thaveto16.

—Givememyglasses.Ican______seethewordsontheblackboard.—Hereyouare.A.everB.neverC.sometimesD.hardly17.

Ifyoudon'tknowwhatthewordmeans,youcanguess______meaningfirst.A.hisB.itsC.herD.your18.

—Why______yousosad?—Ilost(失去)mycat.A.doB.areC.doesD.is19.

Swimmingoftenhelpsme______fit.A.tokeepB.keepingC.tokeepingD.kept20.

—Tom,I'llhaveanimportantmatchtomorrow.Thecoach(教練)encouragesmetotrymybest.—______A.That'sgreat!B.Haveagoodtime!C.Wishyougoodluck!D.That'sallright.21.

Iam______atplayingvolleyballandmybrotherplaysbasketball______.A.good;wellB.well;goodC.good;goodD.well;well22.

—Arethese______pencils?—No.Theyare______.A.your;theirB.your;theirsC.yours;theirD.yours;theirs23.

Ifstudentsdon'thave______homework,theycando______afterschoolactivities.A.toomany;afewB.toomany;alittleC.toomuch;afewD.toomuch;alittle24.

—Excuseme,isthereabanknearhere?—Sorry,______.Iamnotalocal(本地人).A.IhavenoideaB.notatallC.Idon'ttellyouD.Idon'tthinkso25.

Theseshoesare______andthatpairbelongsto______.A.mine;hersB.me;herC.mine;herD.my;mine26.

Don't______inclass,Tom.Whydoyoufeel______?A.sleep;sleepyB.sleepy;sleepC.sleep;sleepingD.sleeping;sleepy27.

Whynot______aplantohelpyourealizeyourgoal?A.makingB.tomakeC.tomakingD.make28.

—Iwanttobeanartist,butit______alittlehard.—Workhard,and______you'llsucceedatlast.A.maybe;maybeB.maybe;maybe29.Iofteneatsome______and______onSaturdayevening.A.tomato;fishB.tomatoes;fishC.tomato;fishesD.fishes;tomatoes30.Mysisterdoesn'tlikeapples,bananas______pears.A.orB.andC.butD.so31.Toher____,shemetherparentsintheoffice.A.SurprisedB.surprisingC.surpriseD.surprises32.Weshouldn't____theirmistakes.A.tolaughB.laughC.laughatD.tolaughat33.Tomhates____theSpringFestivalalone.A.spendB.spendsC.spendingD.spent34.Sheoftenpretends____theanswerwhentheteacherasksadifficultquestion.A.toknowingB.knowingC.toknowD.knows35.Onceuponatime,therewas____emperorinthepalace.A./B.aC.theD.an36.Atfirst,it'shard____physicswell.A.learnB.learnsC.learnedD.tolearn37.Althoughhestudiedharder,hedidn'tsucceedin____theexam.A.passB.passesC.passingD.passed38.Lifeislikeamirror(鏡子).Ifyousmileatit,itwill____back.A.talkB.smileC.lookD.give39.Theyaskedmetogoshoppingwiththem.Idon'tlikeshopping,soIwenttothecinema____.A.insteadB.insteadofC.tooD.either40.—Ann,ourclassteamlostthegameyesterday.—____Iknowtheypractisedalot.Isee.B.Whynot?C.That'sfortrue.D.Howe?41.Theboy____uplate,butnowhegetsupearly.A.isusedtogetB.usedtogetC.isusedtogettingD.usedtogetting42.—When____youfreelastweek?—Well,I____haveafreedaybecauseIhadtoomuchwork.A.did;didn'tB.were;didn'tC.were;wasn'tD.did;wasn't43.Thatwas____usefullesson____me.A.an;forB.an;toC.a;forD.a;to44.WhenAlicesawthelionforthefirsttime,shegotabig____.A.SurprisedB.surprisingC.SurpriseD.surprises45.—Whatdidyoudolastweekend?—____Saturdaymorning,Iwent____awalkinthepark.A.In;withB.On;for46.Lastweek,we____alongbusridetoalakeinthecountryside.A.rideB.tookC.spentD.paid47.—Whocookedthelunchtoday?—I____.A.didB.doesC.wasD.am48.Myfathertaughtme____theguitarlastsummer.A.howtoplayB.whattoplayC.playingD.whentoplay50.—____inHarbin?—It'ssnowy.A.How'stheweatherlikeB.WhatdayisittodayC.HowisitgoingD.What'stheweatherlike51.____niceweathertoday!Whynotgohiking?A.WhatB.WhataC.WhatanD.How52.—Doeshehave____ofmanagingafarm?—Yes,hedoes.Buthehadsometerrible____inthebeginning.A.experiences；experienceB.experience；experiencesC.experience；experienceD.experiences；experiences53.It'squitedifficultforsomestudentstolistencarefully________a40minuteclass.It'sreallyquitealongtimeforthem.A.inB.throughC.acrossD.over54.—Wouldyoupleasetakeaphoto________me?—Ofcourse.A.inB.atC.onD.of55.Allofmyclassmatesarereadinginthelibrary________.A.thisafternoonB.tomorrowC.rightnowD.inthemorning56.—What________yourmotherdoingwhenit________?—She'swatchingTV.A.is;rainyB.does;rainC.does;rainingD.is;israining57.Lookatthe________.It's________hardnow.A.rain;rainingB.rainy;rainC.rain;rainyD.rainy;raining58.—________.May________.MayIspeaktoTom?—Sorry,heisn'tin.A.I'mBobB.ThisisBobC.That'sBobD.Bobishere59.—How'sitgoingwithyourwork?—________.A.You'reweleB.I'mfineC.NotbadD.Thanks60.Mike'sfamily________all________vacationnow.A.are;atB.is;onC.are;onD.is;for61.

—Tom,supperisready.—Idon'twanttoeat______.I'mnotfeelingwell.A.SomethingB.anythingC.NothingD.everything62.

Peter______hisfather.Bothofthemarefunandfriendly.A.LikeB.likesC.islikeD.lookslike63.

Thezookeeperisworriedbecausethenumberofvisitors______smallerandsmaller.A.beeB.arebeingC.isbeingD.havebee64.

Ilikethedressverymuch.It______veryfortable.A.feelsB.tastesC.soundsD.smells65.

Cindyusuallyhelpshermother______thehouseworkattheweekends.A.onB.inC.ofD.with66.—Doyoulikelions?—No.Ithinktheyare______scary.A.anyB.manyC.kindofD.kindsof67.—______scarfgoeswithmycoat,theyellowoneorthegreyone?—Thegreyone.A.HowB.WhichC.WhereD.Why68.Moneyisimportanttoeveryone,butitdoesn'tmean______tome.A.everythingB.anythingC.nothingD.something69.CanIhave______sugarinmytea,please?A.alittleB.afewC.manyD.alot70.Shanghaiis______thebiggestcitiesintheworld.Ilookforwardtovisitingit.A.overB.againstC.amongD.through71.Youmust______somethingtoimproveyourstudy.A.takeB.makeC.doD.todo72.Timwastootired______onclimbingthemountain,sohestoppedandsatonastone.A.goB.togoC.goingD.goes73.—Ihavetotakealongbusridetoworkeveryday.—Whydon'tyou______yourselfacar?A.boughtB.tobuyC.buyingD.buy74.—Ithinkit'simportantforyoungchildren______healthyeatinghabits.—You'reright.A.haveB.tohaveC.havingD.has75.I'dliketobuythebook______10yuan.A.toB.onC.for76.—______?—Abowlofnoodles,please.A.WouldyoulikenoodlesB.WhatwouldyoulikeC.WhatsizewouldyoulikeD.Whatkindofnoodleswouldyoulike77.

—Wouldyoulikesometea?—______.A.Yes,IdoB.No,Iwouldn'tC.No,thanksD.Yes,youwould78.—Wouldyoulike______soccerwithus?—Sure,Ilike______soccerverymuch.A.play;toplayB.playing;toplayC.toplay;playingD.playing;playing79.Thenumberof______inourclass______fifty.A.student;isB.thestudents;areC.students;areD.thestudents;is80.

Ifstudentsdon'thave______homework,theycando______afterschoolactivities.A.toomany;afewB.toomany;alittleC.toomuch;afewD.toomuch;alittle81.

Jimis______thefirstonetoarriveatschool.He______getstoschoollate.Teacherslikehim.A.always;usuallyB.usually;seldomC.seldom;neverD.usually;sometimes82.

Swimmingoftenhelpsme______fit.A.tokeepB.keepingC.tokeepingD.kept83.

—MayIstopmycarhere?—No,you______.It'snotaparkingarea.A.maynotB.mustn’tC.needn’tD.don’thaveto84.—Mybrotherdoesn’tlikemilk.Whataboutyou?—Idon’t,______.A.eitherB.neitherC.tooD.also85.

Jacksayshelikesplayingthepiano.______,hedoesn'tpractiseitveryoften.A.HoweverB.BecauseC.SoD.But二、用括號(hào)內(nèi)所給單詞的適當(dāng)形式填空1.

Thereisnobus.Barry______(have)towalkhome.2.

Thegirlfollowsacat______(quiet).3.

Therearelotsofnew______(rule)inourschoolnow.4.

Thestudentshavetohavemealsinthe______(dine)hallinourschool.5.

Theclassroomisvery______(noise).Pleasekeepquiet,boysandgirls.6.

Ilovelisteningtomusicbecauseitcanmakemefeel______(relax).7.

“Pleasebequiet.No______(talk)!”saysourbiologyteacher.8.

Bill______(practise)thepianoeveryevening.9.

Mikeusually______(read)booksintheschoollibrary.10.

Itisimportant______(keep)fit.11.

Timisafriendof______(she).12.

Idon'tknowit's______(they)toy.13.

Teachersencouragestudents______(join)afterschoolclubs.14.

Ourmathteacherisfunny.Healways______(make)uslaughinhisclass.15.

Wouldyouliketogo______(skateboard)withme,Daniel?16.

Asweallknow,______(eat)vegetablesandfruitisgoodforourhealth.17.

Ourreadingclubhasameeting______(two)aweek.18.

Mydoorbellishere.Whereis______(he)?19.

Afterschool,theboysoftenpractise______(swim)inthepool.20.

Public____(office)shouldn'taskforgiftsormoneyfromthepeople.21.

Themouse____(bite)throughthenetandranaway.22.

Thesmartboy____(hide)himselfbehindthedoorandnoonefoundhim.23.

Ididn'tsee____(someone)intheroom.24.

Isometimesgo____(fish)withmydadonSundays.25.

putersarevery____(power)calculating(計(jì)算)machines.26.

Aliceisn'tinthetennisteambecauseshe____(dislike)playingtennis.27.

Shereturnedtothebedroomand____(lay)thebabydownlightlyonthebed.28.

Maxlearnsthings____(quick).Heissmart.29.

Ittookthemtendaystofindout(查明)the____(true).30.

Myfather____(grow)manystrawberrieslastyear.31.

It's____(excited)towatchsoccergames.32.

WhenIgrowup,Iwanttobean____(act).33.

MyfriendJennyagrees____(help)melookaftermydog.34.

OurPEteacherletsus____(play)interestinggamesinclass.35.

____(final),theoldmanwon.Sothekingorderedhismentocollectabagofrice.36.

We____(take)thetraintoZhengzhoutovisitmygrandpayesterday.37.

Notwo____(leaf)intheworldarethesame.Everyoneisspecial.38.

Eatingtoomuchwithout(沒有)anyexercisewill____(certain)causeweightproblems.39.

Thetwostudentssweptthefloor,____(clean)theblackboardandemptied(倒空)thewastebaskets.40.

Wehavemanykindsof__________(activity)inourschool.41.

Playingbasketballissometimesvery__________(tired),butIenjoyitverymuch.42.

—What'stheweatherliketoday?—It's__________(cloud)butnotcold.43.

Mikeslikes__________(take)photosofsnow.44.

Iamveryhappy__________(make)soupforyou.45.

It's__________(luck)toseethetopoftheFujiMountainonafineday.46.

Itisraining__________(heavy)outside,soyouhavetowaitaminute.47.

Itriedtocollectmy__________(think)butIwastooexcited.48.

Thebigbed__________(feel)soft.Howaboutbuyingit?49.

Isiteasytocatchabustothecity__________(central)fromhere?50.

Mygrandfatherlikestoeat________(potato).51.

Orangesare________(health)andtheyaremyfavouritefruit.52.

Thereissome________(chicken)ontheplate.53.

Joecanmake________(difference)foodsallthetime.54.

Don'tmakeyourson________(stand)outsideallthetime.It'stoocold.55.

Ifyouwanttobeingoodhealth,you'dbetterhavea________(balance)diet.56.

Howmany________(kind)ofanimalsdoyourgrandparentshave?57.

Themovieisnotinteresting.Sohegetsboredandfeels________(sleep)soon.58.

Itisdifficult________(learn)anewlanguage,butit'suseful.59.

Therearealwaysmany________(choice)inourlife.60.

Wouldyouliketogo______(skateboard)withme,Daniel?61.

Asweallknow,______(eat)vegetablesandfruitisgoodforourhealth.62.

Ourreadingclubhasameeting______(two)aweek.63.

Mydoorbellishere.Whereis______(he)?64.

Afterschool,theboysoftenpractise______(swim)inthepool.65.

Thereisnobus.Barry______(have)towalkhome.66.

Thegirlfollowsacat______(quiet).67.

Therearelotsofnew______(rule)inourschoolnow.68.

Thestudentshavetohavemealsinthe______(dine)hallinourschool.69.

Theclassroomisvery______(noise).Pleasekeepquiet,boysandgirls.70.

Ilovelisteningtomusicbecauseitcanmakemefeel______(relax).71.

“Pleasebequiet.No______(talk)!”saysourbiologyteacher.72.

Bill______(practise)thepianoeveryevening.73.

Wemust______(follow)theserules.They'regoodforus.74.

Mikeusually______(read)booksintheschoollibrary.75.

Mrs.Wangisvery________(friend)tous.Welikeherverymuch.76.

Doyouknowlionsarefrom_______(African)?77.

Catsarethenaturalenemies(敵人)of________(mouse).78.

Whatis________(you)favouriteanimal?79.

Iamnotfeeling________(good)todayandIamgoingtoseethedoctornow.80.

Itisimportantforus________(keep)healthy.81.

It'sthesymbolofgood________(lucky).82.

Therearemany________(tree)inourschool.83.

Theydomanythings________(save)thewhales.答案及詳解一、選擇題答案及解析

A

解析：“cutdown”意為“砍伐”，賓語為代詞時(shí)需置于中間，trees為復(fù)數(shù)，用them指代。

A

解析：“madeof”為過去分詞短語作后置定語，修飾clothes，表示“由……制成”。

A

解析：“tostop”為不定式作目的狀語，意為“為了阻止這件事”。

C

解析：“Whatdoeshelooklike?”用于詢問外貌，符合答句“他又高又壯”。

D

解析：8（eight）以元音音素開頭，用an；uniform以輔音音素開頭，用a。

D

解析：practisedoingsth.為固定搭配，意為“練習(xí)做某事”。

C

解析：havefundoingsth.為固定搭配，意為“做某事很開心”。

B

解析：remembertodosth.表示“記得去做某事”，tellsb.aboutsth.為固定短語。

D

解析：toomuch修飾不可數(shù)名詞homework，alotof既可修飾可數(shù)也可修飾不可數(shù)名詞。

C

解析：bestrictwithsb.表示“對(duì)某人嚴(yán)格”，befriendlytosb.表示“對(duì)某人友好”。

B

解析：home為副詞，前不加介詞，arrivehome表示“到家”。

B

解析：must提問的否定回答用needn’t，表示“不必”。

A

解析：waitfor表示“等待”，符合“有些人不等綠燈”的語境。

A

解析：either用于否定句末尾表示“也”，too用于肯定句，also用于句中。

B

解析：mustn’t表示“禁止”，用于回答MayI…?的否定句。

D

解析：hardly表示“幾乎不”，符合“看不清黑板上的字”的語境。

B

解析：its指代“單詞的”，修飾meaning。

B

解析：sad為形容詞，需用be動(dòng)詞are構(gòu)成系表結(jié)構(gòu)。

A

解析：helpsb.(to)dosth.為固定搭配，意為“幫助某人做某事”。

C

解析：Wishyougoodluck!用于祝福對(duì)方比賽順利。

A

解析：begoodat表示“擅長”，playwell表示“打得好”，well為副詞修飾動(dòng)詞。

B

解析：your為形容詞性物主代詞修飾pencils，theirs為名詞性物主代詞，相當(dāng)于theirpencils。

C

解析：toomuch修飾不可數(shù)名詞homework，afew修飾可數(shù)名詞activities。

A

解析：Ihavenoidea表示“我不知道”，符合“不是本地人”的語境。

C

解析：mine為名詞性物主代詞，belongto后接賓格her。

A

解析：Don’t后接動(dòng)詞原形sleep，sleepy為形容詞表示“困倦的”。

D

解析：Whynotdosth.為固定句型，意為“為什么不做某事”。

A

解析：maybe為情態(tài)動(dòng)詞+動(dòng)詞原形，作謂語；maybe為副詞，意為“也許”。

B

解析：tomato的復(fù)數(shù)為tomatoes，fish表示“魚肉”時(shí)為不可數(shù)名詞。

A

解析：否定句中用or連接并列名詞，表示“也不”。

C

解析：toone’ssurprise為固定短語，意為“令某人驚訝的是”。

C

解析：laughat表示“嘲笑”，shouldn’t后接動(dòng)詞原形。

C

解析：hatedoingsth.表示“討厭做某事”，強(qiáng)調(diào)習(xí)慣性動(dòng)作。

C

解析：pretendtodosth.為固定搭配，意為“假裝做某事”。

D

解析：emperor以元音音素開頭，用an表示“一位皇帝”。

D

解析：It’shardtodosth.為固定句型，意為“做某事很難”。

C

解析：succeedindoingsth.為固定搭配，意為“成功做某事”。

B

解析：smileback表示“回以微笑”，符合“生活像鏡子”的比喻。

A

解析：instead為副詞，意為“反而”，單獨(dú)使用；insteadof后需接賓語。

D

解析：Howe?表示“怎么會(huì)？”，用于對(duì)比賽失利表示驚訝。

B

解析：usedtodosth.表示“過去常常做某事”，與now形成對(duì)比。

B

解析：free為形容詞，用were構(gòu)成系表結(jié)構(gòu)；實(shí)義動(dòng)詞have的否定用didn’t。

C

解析：useful以輔音音素開頭，用a；for表示“對(duì)……來說”。

C

解析：getabigsurprise為固定短語，意為“大吃一驚”。

B

解析：具體某天早上用on，goforawalk為固定短語。

B

解析：takeabusride為固定搭配，lastweek提示用過去式took。

A

解析：用did代替cooked，避免重復(fù)。

A

解析：howtoplaytheguitar表示“如何彈吉他”，符合語境。

D

解析：What’stheweatherlike?為詢問天氣的固定句型。

A

解析：weather為不可數(shù)名詞，用What引導(dǎo)感嘆句，結(jié)構(gòu)為“What+形容詞+不可數(shù)名詞+主語+謂語！”。

B

解析：experience表示“經(jīng)驗(yàn)”時(shí)為不可數(shù)名詞，表示“經(jīng)歷”時(shí)為可數(shù)名詞。

B

解析：through表示“貫穿”，listenthrougha40minuteclass意為“整節(jié)課都認(rèn)真聽”。

D

解析：takeaphotoofsb.為固定短語，意為“給某人拍照”。

C

解析：rightnow表示“現(xiàn)在”，與arereading的現(xiàn)在進(jìn)行時(shí)匹配。

D

解析：現(xiàn)在進(jìn)行時(shí)結(jié)構(gòu)為am/is/are+doing，rainy為形容詞，需用israining。

A

解析：第一空用名詞rain，第二空用現(xiàn)在分詞raining與is構(gòu)成進(jìn)行時(shí)。

B

解析：電話用語中自我介紹用Thisis…。

C

解析：Notbad表示“不錯(cuò)”，用于回答工作進(jìn)展。

C

解析：family此處指“家人”，為復(fù)數(shù)，onvacation為固定短語。

B

解析：否定句中用anything表示“任何東西”。

C

解析：belike表示“像……”，指性格；looklike指外貌。

C

解析：thenumberof…作主語時(shí)，謂語動(dòng)詞用單數(shù)，isbeing為現(xiàn)在進(jìn)行時(shí)。

A

解析：feels表示“摸起來”，符合“裙子很舒服”的語境。

D

解析：helpsb.withsth.為固定搭配，意為“幫助某人做某事”。

C

解析：kindof表示“有點(diǎn)”，修飾形容詞scary。

B

解析：Which表示“哪一個(gè)”，用于兩者中選擇。

A

解析：everything表示“一切”，符合“錢不代表一切”的語境。

A

解析：sugar為不可數(shù)名詞，alittle表示“一點(diǎn)”。

C

解析：among表示“在……之中”，用于三者以上。

C

解析：dosomething表示“做某事”，must后接動(dòng)詞原形。

B

解析：too…to…表示“太……而不能……”，為固定結(jié)構(gòu)。

D

解析：Whydon’tyoudosth.為固定句型，意為“為什么不做某事”。

B

解析：It’simportantforsb.todosth.為固定句型，意為“對(duì)某人來說做某事很重要”。

C

解析：buysth.for+價(jià)格，表示“以……價(jià)格買某物”。

B

解析：Whatwouldyoulike?用于詢問想要什么，符合答句“一碗面條”。

C

解析：否定回答用No,thanks.，表示“不用，謝謝”。

C

解析：wouldliketodosth.表示“想要做某事”，likedoingsth.表示“喜歡做某事”（習(xí)慣性）。

D

解析：thenumberof+復(fù)數(shù)名詞，謂語動(dòng)詞用單數(shù)is。

C

解析：同第23題，toomuch修飾不可數(shù)名詞，afew修飾可數(shù)名詞。

B

解析：usually表示“通常”，seldom表示“很少”，符合“總是第一個(gè)到，很少遲到”。

A

解析：同第19題，helpsb.(to)dosth.。

B

解析：同第15題，mustn’t表示“禁止”。

A

解析：同第14題，否定句中用either。

A

解析：However表示“然而”，可置于句首，用逗號(hào)隔開；But后直接接句子。

二、用括號(hào)內(nèi)所給單詞的適當(dāng)形式填空答案

has

解析：主語Barry為第三人稱單數(shù)，時(shí)態(tài)為一般現(xiàn)在時(shí)。

quietly

解析：副詞修飾動(dòng)詞follows。

rules

解析：lotsof后接可數(shù)名詞復(fù)數(shù)。

dining

解析：dininghall為固定短語，意為“餐廳”。

noisy

解析：形容詞作表語，表示“吵鬧的”。

relaxed

解析：feelrelaxed表示“感到放松的”，修飾人用ed形容詞。

talking

解析：Notalking!為固定表達(dá)，意為“禁止交談”。

practises

解析：主語Bill為第三人稱單數(shù)，everyevening提示一般現(xiàn)在時(shí)。

reads

解析：主語Mike為第三人稱單數(shù)，usually提示一般現(xiàn)在時(shí)。

tokeep

解析：It’simportanttodosth.為固定句型。

hers

解析：名詞性物主代詞，相當(dāng)于herfriends。

their

解析：形容詞性物主代詞修飾toy。

tojoin

解析：encouragesb.todosth.為固定搭配。

makes

解析：主語He為第三人稱單數(shù)，always提示一般現(xiàn)在時(shí)。

skateboarding

解析：goskateboarding為固定短語，意為“去玩滑板”。

eating

解析：動(dòng)名詞作主語，謂語動(dòng)詞用單數(shù)。主語，謂語動(dòng)詞用單數(shù)。

twice

解析：twiceaweek表示“一周兩次”。

his

解析：名詞性物主代詞，相當(dāng)于hisdoorbell。

swimming

解析：practisedoingsth.為固定搭配。

officers

解析：publicofficer表示“公職人員”，用復(fù)數(shù)形式。

bit

解析：and連接并列動(dòng)詞，ran為過去式，bite的過去式為bit。

hid

解析：and連接并列動(dòng)詞，found為過去式，hide的過去式為hid。

anyone

解析：否定句中用anyone代替someone。

fishing

解析：gofishing為固定短語，意為“去釣魚”。

powerful

解析：形容詞修飾名詞machines，powerful表示“強(qiáng)大的”。

dislikes

解析：主語she為第三人稱單數(shù)，時(shí)態(tài)為一般現(xiàn)在時(shí)，dislike表示“不喜歡”。

laid

解析：and連接并列動(dòng)詞，returned為過去式，lay的過去式為laid（放置）。

quickly

解析：副詞修飾動(dòng)詞learns。

truth

解析：定