2026秋季学期新教材外研版（三起）四年级上册英语期中复习：Units 1–3重点知识总结+易错练习题（含答案解析）

第第页2026秋季学期新教材外研版（三起）四年级上册英语期中复习：Units1–3重点知识总结+易错练习题Ilovesports·Helpingathome·What'stheweatherlike?📚第一部分：期中重点知识总览◎一、重点短语归纳（Units1–3）🔵Unit1Ilovesports重点短语◆playsports做运动◆playping-pong打乒乓球◆playbasketball打篮球◆playvolleyball打排球◆playfootball踢足球◆runfast跑得快◆jumphigh跳得高◆jumpfar跳得远◆tryyourbest尽最大努力◆giveup放弃◆atfirst起初◆keeprunning持续跑步🟢Unit2Helpingathome重点短语◆dochores做家务◆washthedishes洗碗◆washtheclothes洗衣服◆sweepthefloor扫地◆makethebed铺床◆cleanthetable撤桌子◆cleantheroom打扫房间◆feedthedog喂狗◆takeouttherubbish倒垃圾◆tidyyourroom整理房间◆waterthevegetables给蔬菜浇水◆collecttheeggs收集鸡蛋◆picktheapples摘苹果◆cutthegrass割草◆takecareof照顾◆warmup使变暖◆goodjob/welldone干得好◆noproblem没问题🏥Unit3What'stheweatherlike?重点短语◆goout出去◆gohome回家◆comeup（太阳等）升起◆comedown落下◆turnon打开（电视等）◆weatherreport天气预报◆havefun玩得开心◆enjoydoing喜欢做……◆putonacoat穿上外套◆achildren'shome一所儿童之家◆realsnow真正的雪◆abigsurprise一个大惊喜◆keepadiary写日记◆twodayslater两天后◎二、重点句型归纳（Units1–3）🔵Unit1核心句型——Doyoulikeplayingsports?—Yes,Ido./No,Idon't.——Canyoujumphigh?—Yes,Ican./No,Ican't.—Icanplayping-pong.Shecanrunfast.—Hecan'tswim,buthecanlearn.—Tryyourbest!Don'tgiveup!—Ioftenplaybasketballafterschool.🟢Unit2核心句型——Canyouhelpmewashthedishes?—Sure!/Yes,Ican.——MayIplayoutside?—Yes,youmay./No,youmaynot.—Icansweepthefloorandtidymyroom.—Mumistired.ItakecareofDad.—Goodjob!/Welldone!/Noproblem!—Iamhappytohelpmyfamily.—Let'sworktogether.🏥Unit3核心句型——What'stheweatherlike?—It'ssunnyandwarm.——Isitcoldorhot?—It'scold.—Inthemorning,it'scloudy.Intheafternoon,it'ssunny.——DoIneedmycoat?—Yes,youdo./No,youdon't.—IwanttoseerealsnowinBeijing.—Thewindblowshard.It'swindyandcold.—Weenjoyplayinginthesnow.—Comeon,let'sturnontheTV.◎三、重点语法归纳（Units1–3）①情态动词can——表示能力或请求⚠肯定句：主语+can+动词原形→Icanjumpfar.⚠否定句：主语+can't+动词原形→Shecan'tswim.⚠一般疑问：Can+主语+动词原形?→Canyouhelpme?⚠⚠can后永远加动词原形，不加s/es/ing/ed⚠⚠can不受人称影响：Ican/Hecan/Theycan②情态动词may——表示请求许可（比can更客气）⚠结构：MayI+动词原形?→MayIplayoutside?⚠肯定回答：Yes,youmay./Sure./Ofcourse.⚠否定回答：No,youmaynot./I'mafraidyoucan't.⚠⚠may和can区别：may气多更客气；can表能力时不能互换③like/enjoy+doing——表示喜好做某事⚠结构：主语+like(s)+doing→Ilikeswimming.⚠疑问：Do/Does+主语+like+doing?→Doyoulikerunning?⚠回答：Yes,Ido./No,Idon't.→Yes,shedoes./No,shedoesn't.⚠enjoy+doing→Weenjoyplayinginthesnow.⚠⚠like后接动名词(doing)，不接动词原形④一般现在时三单变化⚠主语he/she/单个人名+动词加s/es⚠help→helpsmake→makeswash→washesgo→goes⚠have→has(特殊)do→does(特殊)⚠Oliviaoftentidiesherroom.ChenWeiplaysfootballeveryday.⚠⚠否定句用doesn't+动词原形：Shedoesn'tlikerain.⑤频度副词often/usually/sometimes⚠位置：be动词后；实义动词前⚠Heisoftenbusy.(be后)Sheusuallyhelpsme.(动词前)⚠SometimesIplayping-pongafterschool.(also可放句首)⚠⚠often≠sometimes：often=经常,sometimes=有时⑥天气句型What'stheweatherlike?⚠疑问：What'stheweatherlike?=Howistheweather?⚠回答：It's+天气形容词→It'ssunny/rainy/windy/cold.⚠选择疑问：Isitcoldorhot?→It'scold.⚠持续状态：It'sraining.Thewindblowshard.⚠⚠回答用It's，不用Yes/No；or问题选一项回答⑦needto/must——需要或必须⚠needto+动原：Ineedtofinishmyhomework.⚠must+动原：Youmustbecareful.⚠疑问：Do/Does+主语+needto...?→DoIneedmycoat?⚠⚠need作实义动词时有人称变化：Sheneedstorest.⑧help的用法与also/too⚠help(sb)+动原：Canyouhelpmesweepthefloor?⚠三单helps：Jamhelpshismumcookdinner.⚠also放实义动词前：Ialsolikebasketball.⚠too放句末：Shecanswim,too.⚠⚠also不放句末；too前面有逗号

🎯第二部分：十大易错考点速览🔵考点一：can后接动词原形（不加s/ing/ed）🟢考点二：can与may的区分（能力vs许可）🟠考点三：like/enjoy+doing（不接原形）🏥考点四：一般现在时三单动词加s/es🔴考点五：频度副词often/usually/sometimes位置💨考点六：What'stheweatherlike?的回答用It's+形容词❤️考点七：选择疑问句(or)的回答方式⚡考点八：needto/must后接动词原形💪考点九：help+动原;三单helps🟢考点十：also与too的区分与用法

✏️第三部分：易错考点专项训练（90题全选择题）🔵考点一：can后接动词原形（不加s/ing/ed）【要点】can是情态动词，后接动词原形；can't后也接原形；can不受人称影响。◎基础题

（）1.Olivia_____jumphigh.Sheisgoodatit.A.canB.cansC.canto

（）2.—CanChenWeisweepthefloor?—Yes,he_____.A.canB.isC.does

（）3.I_____playbasketballafterschooleveryday.A.canB.amC.do▷提升题▷（）1.Lily_____swimveryfast.Sheisagoodswimmer.A.canB.cansC.canto▷（）2.—Canyourbrotherrunfast?—No,he_____.A.canB.can'tC.don't▷（）3.ZhangHao_____helphismumcookdinner.Heishelpful.A.canB.isC.does★拓展题★（）1.Jam_____playfootball,buthe_____playvolleyball.A.can;can'tB.can't;canC.can;can★（）2.—WhatcanBelladoathome?—_____cantidytheroom.A.HerB.SheC.Hers★（）3.ZhouKaiandJam_____bothplayping-pongwell.A.canB.can'tC.is🟢考点二：can与may的区分（能力vs许可）【要点】can表能力（能不能）；may表请求许可（可以不可以），气多更客气。◎基础题

（）1.—_____Iplayoutside,Mum?—Yes,youmay.A.CanB.MayC.Do

（）2.—Canyoufeedthedog?—_____.A.Yes,youmayB.SureC.Yes,Imay

（）3.—MayIgohomenow?—_____.A.Yes,youcanB.No,youmaynotC.No,Ican't▷提升题▷（）1.—_____youhelpmewashthedishes?—OfcourseIcan.A.MayB.CanC.Do▷（）2.Lilyispolite.Shealwayssays—_____Icomein?—A.CanB.MayC.Do▷（）3.—Whatdoes—MayIhelpyou?—mean?—Itmeans—_____.—A.IcanhelpyouB.Canyouhelpme?C.Doyouneedhelp?★拓展题★（）1.Oliviacanrunfast.She_____runveryfast.A.mayB.canC.must★（）2.—MayIuseyourbook,ZhangHao?—_____.A.Yes,youcanB.Sure,hereyouareC.Yes,Ican★（）3.ChenWeiistired._____heplayfootballtoday?—No,hecan't.A.MayB.CanC.Does🟠考点三：like/enjoy+doing（不接原形）【要点】like+doing表示喜欢做某事；enjoy+doing表示享受做某事；三单用likes、enjoys。◎基础题

（）1.Jamlikes_____ping-pongafterschool.A.playB.playingC.plays

（）2.—Doyoulike_____?—Yes,Ido.A.swimB.swimmingC.swims

（）3.Olivia_____readingbooksinthelibrary.A.likeB.likesC.islike▷提升题▷（）1.ChenWeiandZhangHaolike_____footballtogether.A.playB.playingC.plays▷（）2.—DoesLilylikejumpingrope?—_____.A.Yes,shelikeB.Yes,shedoesC.Yes,shedo▷（）3.Bellaenjoys_____intheparkonsunnydays.A.runB.runsC.running★拓展题★（）1.Theyalllike_____sports,andZhouKailikes_____basketballbest.A.play;playB.playing;playC.playing;playing★（）2.—WhatdoesOliviaenjoydoing?—Sheenjoys_____diaries.A.keepB.keepsC.keeping★（）3.Jamdoesn'tlike_____intherain.Hehatesrainydays.A.runB.runsC.running🏥考点四：一般现在时三单动词加s/es【要点】主语he/she/单个人名+动词加s/es；have→has；go→goes；wash→washes。◎基础题

（）1.Lilyoften_____herroomonSundays.A.tidyB.tidiesC.tidying

（）2.ChenWei_____basketballeveryafternoon.A.playB.playsC.playing

（）3.Olivia_____ahappyfamilyinWuhan.A.haveB.hasC.is▷提升题▷（）1.Jamusually_____thedishesafterdinner.A.washB.washesC.washing▷（）2.ZhangHao'smum_____inahospital.Sheisadoctor.A.workB.worksC.working▷（）3.Bellaalways_____upearlyinthemorning.A.getB.getsC.getting★拓展题★（）1.ZhouKai'sdad_____toworkbybuseveryday.A.goB.goesC.going★（）2.LilyandOlivia_____gamestogether.They_____alotoffun.A.play;haveB.plays;hasC.play;has★（）3.ChenWei_____hisdogeverymorning.Hisdog_____himtoo.A.feed;likeB.feeds;likesC.feeds;like🔴考点五：频度副词often/usually/sometimes位置【要点】often/usually放实义动词前；sometimes可放句首/句中/句末；be动词后用often/usually/sometimes+形容词。◎基础题

（）1.Jam_____playsfootballafterschool.A.oftenB.isoftenC.oftenis

（）2.Lilyis_____lateforschool.Sheisagoodstudent.A.usuallyB.neverC.sometimes

（）3.They_____gototheparkonweekends.A.oftenB.areoftenC.oftenare▷提升题▷（）1.ChenWei_____helpshismumathome.Heishelpful.A.usuallyB.isusuallyC.usuallyis▷（）2.—HowoftendoesBellatidyherroom?—She_____tidiesit.A.oftenB.isoftenC.areoften▷（）3.Oliviais_____happywhensheplayswithJam.A.usuallyB.isusuallyC.usuallyis★拓展题★（）1.ZhangHaoandZhouKai_____playping-pongtogetherafterclass.A.oftenB.areoftenC.oftenare★（）2.—DoesitraininKunming?—Yes,butit_____rainsheavily.A.oftenB.neverC.sometimes★（）3.Lily_____readsbooksbeforebed.Readingisherhabit.A.alwaysB.isalwaysC.alwaysis💨考点六：What'stheweatherlike?的回答用It's+形容词【要点】What'stheweatherlike?=Howistheweather?；回答用It's+天气形容词（sunny/rainy/windy/cold/warm）。◎基础题

（）1.—What'stheweatherlikeinQingdao?—_____sunnyandwarm.A.It'sB.ItsC.Itisnot

（）2.—Howistheweathertoday?—_____rainy.A.ItB.It'sC.Isit

（）3.InXiamen,theweatheris_____inwinter.It'snotverycold.A.warmB.windyC.snowy▷提升题▷（）1.—What'stheweatherlikeinJinantoday?—_____cloudyandwindy.A.It'sB.ItsC.It▷（）2.Thewindblowshard.It's_____today.A.windB.windyC.winds▷（）3.Lookattheclouds!It'sgoingto_____soon.A.rainB.rainyC.rains★拓展题★（）1.—What'stheweatherlikeinKunminginspring?—_____sunnyandwarm.A.It'sB.ItsC.It★（）2.Inthemorningit'sfoggy.Atnoonitbecomes_____.A.sunB.sunnyC.suny★（）3.—IsitsnowyinWuhan?—No,it_____snowsthereinwinter.A.oftenB.usuallyC.never❤️考点七：选择疑问句(or)的回答方式【要点】用or连接两个选项；回答时不用Yes/No，直接选一项回答。◎基础题

（）1.—IsitcoldorhotinWuhan?—_____.A.Yes,itisB.It'scoldC.No,itisn't

（）2.—Doyoulikesunnyorrainydays?—_____.A.Yes,IdoB.SunnydaysC.No,Idon't

（）3.—Canyouplayfootballorbasketball?—_____.A.Yes,IcanB.FootballC.No,Ican't▷提升题▷（）1.—Isitwindyorcloudytoday?—_____.Thecloudsarethick.A.It'scloudyB.Yes,itisC.No,itisn't▷（）2.—DoesitrainorsnowinXiamen?—_____.It'swarmthere.A.ItrainsB.ItsnowsC.Itdoesn'trainorsnow▷（）3.—MayIgooutorstayathome?—_____.A.Yes,youmayB.YoumaygooutC.No,youmaynot★拓展题★（）1.—IsOlivia'scoatblueorred?—_____.Shelikesblue.A.It'sblueB.Yes,itisC.No,itisn't★（）2.—Dotheyneedcoatsorumbrellas?—_____.It'srainy.A.TheyneedumbrellasB.Yes,theydoC.No,theydon't★（）3.—IsChenWeihappyorsad?—_____.Hecanplayoutside.A.HeishappyB.Yes,heisC.No,heisn't⚡考点八：needto/must后接动词原形【要点】needto+动原；must+动原；need作实义动词时三单用needsto。◎基础题

（）1.You_____becarefulwhenyoucrosstheroad.A.mustB.musttoC.musts

（）2.I_____tofinishmyhomeworkbeforedinner.A.needB.needsC.needto

（）3.—DoIneedmycoattoday?—Yes,you_____.A.doB.needC.must▷提升题▷（）1.Olivia_____totakeanumbrella.It'srainyinWuhan.A.needB.needsC.needto▷（）2.Jam,you_____tidyyourroombeforeplayingoutside.A.mustB.musttoC.musts▷（）3.—DoesLilyneedtofeedthedog?—Yes,she_____.A.needB.doesC.needs★拓展题★（）1.ChenWeiandZhangHao_____tosweepthefloor.Theirroomisdirty.A.needB.needsC.needto★（）2.You_____playwithfire.It'sverydangerous.A.mustn'tB.needn'tC.don'tneed★（）3.Bellaisill.She_____toseeadoctor.A.needB.needsC.needsto💪考点九：help+动词原形；三单helps【要点】help(sb)+动词原形；三单用helps；canhelp+原形。◎基础题

（）1.Canyouhelpme_____thefloor?A.sweepB.sweepsC.sweeping

（）2.Lilyoftenhelpshermum_____thedishes.A.washB.washesC.washing

（）3.Jamishelpful.He_____hisdadtidytheroom.A.helpB.helpsC.helping▷提升题▷（）1.ChenWei_____hislittlesisterdohomeworkeveryday.A.helpB.helpsC.helping▷（）2.—CanOliviahelpyoucookdinner?—Yes,she_____.A.canB.canhelpC.helps▷（）3.BellaandLilyhelptheirmum_____thevegetables.A.waterB.watersC.watering★拓展题★（）1.ZhangHao'sneighboursarekind.Theyoftenhelphisfamily_____chores.A.doB.doesC.doing★（）2.ZhouKai_____hisgrandmafeedthechickensonthefarm.A.helpB.helpsC.helping★（）3.—DoesJamhelphisfriends?—Yes,healways_____them.A.helpB.helpsC.helping🟢考点十：also与too的区分与用法【要点】also放实义动词前，be动词/情态动词后；too放句末，前面有逗号。◎基础题

（）1.Jamlikesfootball.He_____likesbasketball.A.tooB.alsoC.to

（）2.Lilycanswim,andshecandance,_____.A.alsoB.tooC.to

（）3.ChenWeiistall.Heis_____strong.A.tooB.alsoC.to▷提升题▷（）1.Oliviacansing.She_____canplaythepiano.A.tooB.alsoC.to▷（）2.ItisrainyinWuhan,anditiscold,_____.A.alsoB.tooC.to▷（）3.ZhangHaoandZhouKaiarefriends.They_____playtogetheroften.A.tooB.alsoC.to★拓展题★（）1.Bellalikesreading.She_____enjoyswritingstories.Sheisgoodatboth.A.tooB.alsoC.to★（）2.InXiamen,itiswarminwinter.Itissunny,_____.A.alsoB.tooC.to★（）3.Lilycansweepthefloor.Shecan_____tidytheroom.A.tooB.alsoC.to

✅第四部分：参考答案与详细解析🔵考点一：can后接动词原形—参考答案与解析▸基础题1：选A【解析】can后接动词原形jump，不加s。cans是错误形式。▸基础题2：选A【解析】Can引导的一般疑问句，肯定回答用Yes,hecan.▸基础题3：选A【解析】Icanplay...我能打篮球。can后用原形play。▸提升题1：选A【解析】Lily是三单，但can不变形，用can而不是cans。▸提升题2：选B【解析】否定回答用No,hecan't.can't=cannot。▸提升题3：选A【解析】ZhangHao是三单，但can不变，用canhelp。▸拓展题1：选B【解析】前半句否定用can't，后半句肯定用can。意思：Jam不会踢足球，但会打排球。▸拓展题2：选B【解析】回答WhatcanBellado?用Shecan...，She是主格作主语。▸拓展题3：选A【解析】ZhouKaiandJam是复数主语，用can，不加s。🟢考点二：can与may的区分—参考答案与解析▸基础题1：选B【解析】请求许可用MayI...?气多更客气。回答Yes,youmay.▸基础题2：选B【解析】回答Canyou...?用Sure/Yes,Ican.表示愿意帮忙。▸基础题3：选B【解析】回答MayI...?用No,youmaynot.或I'mafraidyoucan't.▸提升题1：选B【解析】求人帮忙用Canyouhelpme...?不用May。▸提升题2：选B【解析】示意请求进入用MayIcomein?比Can更客气。▸提升题3：选C【解析】MayIhelpyou?意思是“你需要帮助吗？”相当于Doyouneedhelp?▸拓展题1：选B【解析】能力描述用can，Shecanrunveryfast.不用may。▸拓展题2：选B【解析】同意别人借用物品用Sure/Ofcourse.回答应该大方便。▸拓展题3：选B【解析】问能力用Canheplay...?不用May。May问的是许可。🟠考点三：like/enjoy+doing—参考答案与解析▸基础题1：选B【解析】like+doing，playing是动名词形式。Jamlikesplayingping-pong.▸基础题2：选B【解析】Doyoulike+doing?用swimming，不用swim原形。▸基础题3：选B【解析】Olivia是三单，like变likes。likesreading喜欢读书。▸提升题1：选B【解析】复数主语+like+doing，用playing，不用plays。▸提升题2：选B【解析】Doesshe...?肯定回答Yes,shedoes.doesn't用does不用do。▸提升题3：选C【解析】enjoy+doing，用running。enjoysrunning喜欢跑步。▸拓展题1：选C【解析】likeplayingsports喜欢做运动；likesplayingbasketball喜欢打篮球。两个空都用doing。▸拓展题2：选C【解析】enjoy+doing，用keeping。enjoyskeepingdiaries喜欢写日记。▸拓展题3：选C【解析】doesn'tlike+doing，用running。否定句也用doing。🏥考点四：三单动词加s/es—参考答案与解析▸基础题1：选B【解析】Lily是三单，tidy变形加ies→tidies。▸基础题2：选B【解析】ChenWei是三单，play加s→plays。▸基础题3：选B【解析】Olivia是三单，have变has。hasahappyfamily有一个幸福的家庭。▸提升题1：选B【解析】Jam是三单，wash加es→washes。▸提升题2：选B【解析】ZhangHao'smum是三单，work加s→works。▸提升题3：选B【解析】Bella是三单，getup加s→getsup。▸拓展题1：选B【解析】ZhouKai'sdad是三单，go加es→goes。▸拓展题2：选A【解析】LilyandOlivia是复数用play和have。三单才用plays/has。▸拓展题3：选B【解析】ChenWei是三单用feeds；Hisdog是三单用likes。🔴考点五：频度副词的位置—参考答案与解析▸基础题1：选A【解析】often放实义动词前：oftenplays。不用isoften。▸基础题2：选B【解析】Lily从不迟到用never。neverlate从不迟到。usually和sometimes不符合语境。▸基础题3：选A【解析】复数主语+often+动原：oftengo。不用areoften。▸提升题1：选A【解析】ChenWei是三单，但often放动词前：usuallyhelps。▸提升题2：选A【解析】回答Howoften用often。Sheoftentidiesit.不用isoften。▸提升题3：选B【解析】is后用usually：isusuallyhappy。usually放be动词后。▸拓展题1：选A【解析】复数主语+often+动原：oftenplay。不用areoften。▸拓展题2：选C【解析】根据上下文“Yes,but…”表示有时下雨但不大，用sometimes。▸拓展题3：选A【解析】Lily是三单，is后用always：isalwayshappy。always放be后。💨考点六：天气句型What'stheweatherlike?—参考答案与解析▸基础题1：选A【解析】回答用It's+形容词。It'ssunnyandwarm.不用Its(它的)。▸基础题2：选B【解析】回答Howistheweather?用It'srainy.不用Itrainy。▸基础题3：选A【解析】描述天气用形容词warm。后文说不冷，故选warm。▸提升题1：选A【解析】回答What'stheweatherlike?用It'scloudyandwindy.Its是名词“它的”。▸提升题2：选B【解析】描述天气用形容词windy。wind是名词，windy是形容词。▸提升题3：选A【解析】begoingto+动原：isgoingtorain.即将下雨。用rain原形。▸拓展题1：选A【解析】回答用It's形容词。Its是“它的”，不是Itis缩写。▸拓展题2：选B【解析】变化用形容词：becomessunny。sunny是形容词，sun是名词。▸拓展题3：选C【解析】根据上下文“No”表示武汉从不下雪，用never。❤️考点七：选择疑问句(or)的回答—参考答案与解析▸基础题1：选B【解析】选择疑问句用or连接，回答不用Yes/No，直接选一项：It'scold.▸基础题2：选B【解析】回答Doyoulike...?用Sunnydays.直接选一项，不用Yes/No。▸基础题3：选B【解析】回答Canyou...?用Football.直接回答会哪个，不用Yes/No。▸提升题1：选A【解析】根据后文“cloudsarethick”选It'scloudy.不用Yes/No。▸提升题2：选C【解析】