2026年人教版初中英语七年级下册第5单元语法知识点巩固习题及答案

2026年人教版初中英语七年级下册第5单元语法知识点巩固习题及答案第1页共1页2026年人教版初中英语七年级下册第5单元语法知识点巩固习题及答案一、单项选择题（共10小题，每题2分）（每小题只有一个选项符合题意，请把正确选项的字母填在题后括号内）1.Ifyouwanttoaskaboutsomeone'splansfortheweekend,whichquestionshouldyouuse?A.Whatareyoudoingnow?B.Wherewillyougonextweek?C.Howdoyouusuallyspendyourtime?D.Whendidyoufinishyourhomework?参考答案：B2.Toexpressafutureplanorintention,whichstructureshouldyouuse?A.will+baseverbB.begoingto+baseverbC.presentcontinuousD.presentsimple参考答案：B3.Ifyouwanttotalkaboutafutureeventthatiscertainorplanned,whichstructureisbest?A.will+baseverbB.begoingto+baseverbC.presentcontinuousD.presentsimple参考答案：B4.Whentalkingaboutafuturedecisionthatyouhavemade,whichstructureshouldyouuse?A.will+baseverbB.begoingto+baseverbC.presentcontinuousD.presentsimple参考答案：B5.Ifyouwanttoasksomeoneabouttheirfutureplans,whichquestionshouldyouuse?A.Whatareyoudoingnow?B.Wherewillyougonextweek?C.Howdoyouusuallyspendyourtime?D.Whendidyoufinishyourhomework?参考答案：B6.Toexpressafuturepossibility,whichstructureshouldyouuse?A.will+baseverbB.begoingto+baseverbC.presentcontinuousD.presentsimple参考答案：A7.Ifyouwanttotalkaboutafutureeventthatyouhavedecidedtodo,whichstructureisbest?A.will+baseverbB.begoingto+baseverbC.presentcontinuousD.presentsimple参考答案：B8.Whentalkingaboutafuturearrangement,whichstructureshouldyouuse?A.will+baseverbB.begoingto+baseverbC.presentcontinuousD.presentsimple参考答案：B9.Ifyouwanttoasksomeoneabouttheirfutureplans,whichquestionshouldyouuse?A.Whatareyoudoingnow?B.Wherewillyougonextweek?C.Howdoyouusuallyspendyourtime?D.Whendidyoufinishyourhomework?参考答案：B10.Toexpressafutureintention,whichstructureshouldyouuse?A.will+baseverbB.begoingto+baseverbC.presentcontinuousD.presentsimple参考答案：B二、填空题（共10小题，每题2分）（请把正确答案直接填写在题中横线上，填写不完整的不得分）1.She______(go)totheparkyesterdayafternoon.参考答案：went2.We______(notwatch)TVlastnightbecauseitwastoolate.参考答案：didn’twatch3.He______(do)hishomeworkwhenthephone______(ring)lastnight.参考答案：wasdoing;rang4.Mysister______(be)bornin2010.Soshe______(be)16yearsoldthisyear.参考答案：was;is5.They______(live)inthistownsince2015.参考答案：havelived6.I______(notsee)himfortwoweeks.Iwonderwherehe______(be).参考答案：havebeen7.______you______(do)yourhomeworknow?参考答案：Are;doing8.What______you______(do)yesterdayevening?参考答案：did;do9.Theteacheraskedus,"______you______(go)tothelibraryyesterday?"参考答案：Did;go10.Look!Thechildren______(play)soccerintheparknow.参考答案：areplaying三、判断题（共10小题，每题2分）（正确的打“√”，错误的打“×”，把判断符号填在题后括号内）1.Sheisreadingabookinthelibrarynow.参考答案：×2.Theywenttotheparkyesterdayafternoon.参考答案：√3.Hewillvisithisgrandparentsnextweekend.参考答案：×4.Thecatissleepingonthesofa.参考答案：√5.Myfatherboughtanewcarlastmonth.参考答案：×6.Wearehavinglunchatschoolnow.参考答案：√7.Themoviestartedat7:00p.m.yesterdayevening.参考答案：×8.Theyareplayingbasketballintheplayground.参考答案：√9.Theteachergaveushomeworkyesterday.参考答案：×10.Iwenttothesupermarketthismorning.参考答案：√四、简答题（共8小题，每题2分）（请分点作答，语言简明、要点齐全，写在对应题目下方的横线上）1.WhatisthefunctionofthepresentcontinuoustenseinEnglish?参考答案：Itisusedtodescribeactionshappeningatthemomentofspeaking,temporarysituations,orongoingprocesses.2.Howdoyouformthenegativeformofasentenceusingthepresentsimpletense?参考答案：Youuse"donot"or"don't"fortheauxiliaryverbandplacethemainverbinitsbaseform.Forexample,"Hedoesnotstudy"or"Hedoesn'tstudy".3.Canyougiveanexampleofusingthepresentsimpletensetodescribeahabit?参考答案：Forexample,"IwatchTVeveryevening."Thissentencedescribesadailyhabitusingthepresentsimpletense.4.Inwhatsituationsdoweusethepresentcontinuoustensetotalkaboutatemporarysituation?参考答案：Weuseittotalkaboutsituationsthataretemporaryandwillnotlastforlong,suchasavisitoraproject.5.Whatisthedifferencebetween"often"and"always"intermsoffrequency?参考答案："Often"meansfrequently,but"always"meansallthetime."Always"ismorefrequentthan"often".6.Howdoyouusethepresentsimpletensetotalkaboutfactsorgeneraltruths?参考答案：Weusethepresentsimpletensetotalkaboutfactsorgeneraltruthsthatarealwaystrue,suchasscientificfactsorroutines.Forexample,"Thesunrisesintheeast."7.Whyisitimportanttounderstandthesubject-verbagreementinthepresentsimpletense?参考答案：Subject-verbagreementisimportantbecauseifthesubjectisthirdpersonsingular,theverbmustendin"-s"or"-es".Forexample,"Hestudies"not"Hestudy".8.Whataresomecommonverbsthatareusuallynotusedinthepresentcontinuoustense?参考答案：Somecommonverbsthatareusuallynotusedinthepresentcontinuoustenseare"tobe","tohave",and"todo".五、应用题（共8小题，每题3分）（请写出必要的文字说明、方程式和重要的演算步骤，只写最后结果不得分）1.YourschoolisgoingtoholdaEnglishspeechcontest.Youareinterestedintakingpartinit.Writeashortspeechofabout60words,introducingyourselfandtellingwhyyoulikeEnglish.A.Hello,everyone.MynameisLiHua.Iam14yearsold.IlikeEnglishbecauseitisveryinteresting.Icanlearnaboutdifferentculturesandmakemorefriends.IhopeIcanimprovemyEnglishinthecontest.B.Hi,everyone.IamWangFang.IamfromClass3,Grade1.IloveEnglishbecauseIcanreadEnglishbooks.Englishisveryusefulforourfuture.Let'sworkhardtogether.C.Goodmorning.MynameisZhangWei.Iam13yearsold.IlikeEnglishbecausemyteacherisverykind.SheoftenhelpsuswithEnglish.IwanttobeagoodEnglishspeaker.D.Hello.IamLiuTao.IaminClass2,Grade1.IenjoyEnglishbecauseIcanwriteEnglishessays.Englishisimportantforourstudy.Iwilltrymybestinthecontest.参考答案：A2.Lookatthepicturebelow.Itshowsapartofyourbedroom.Thereisabed,adesk,achairandabookshelfintheroom.Writeashortparagraphofabout50words,describingyourbedroom.A.Thisismybedroom.Thereisabedinthecorner.Adeskandachairarenearthewindow.Abookshelfisagainstthewall.Therearemanybooksonit.Mybedroomiscleanandbright.B.Thisismybedroom.Thereisabigbedinthemiddleoftheroom.Adeskandachairarebesidethebed.Abookshelfisontheleftwall.Therearesomepicturesonit.Ilikemybedroomverymuch.C.Thisismybedroom.Thereisasmallbedunderthewindow.Adeskandachairareinfrontofthebed.Abookshelfisbehindthedoor.Therearemanytoysonit.Mybedroomisfun.D.Thisismybedroom.Thereisabednearthedoor.Adeskandachairareinthecorner.Abookshelfisagainstthewall.Therearesomeflowersonit.Mybedroomisbeautiful.参考答案：A3.YourfriendTomisgoingtovisityounextweekend.Writeashortemailtohim,tellinghimhowyoucanhelphimwhenhecomestoyourhome.A.HiTom,Iamveryhappytohearthatyouwillvisitmenextweekend.Iwillhelpyouwithyourhomework.Iwillshowyouaroundmyschool.Iwillbuysomefoodforyou.Ihopeyouwillhaveagoodtime.B.HelloTom,Iamgladtoseeyounextweekend.Icanhelpyoufindyourwayinthecity.Icanteachyouhowtoplaybasketball.IcancooksomeChinesefoodforyou.Let'shavefuntogether.C.HiTom,Iamexcitedtohaveyouvisitmenextweekend.IwillhelpyouwithyourEnglishstudy.Iwilltakeyoutothepark.Iwillpreparesomesnacksforyou.Ican'twaittoseeyou.D.HelloTom,Iamlookingforwardtoyourvisitnextweekend.Icanhelpyouwithyourmathproblems.Iwillshowyoumycollectionofstamps.Iwillmakesometeaforyou.Welcometomyhome.参考答案：C4.Lookatthetablebelow,whichshowstheweatherforecastforfourcitiesthisweekend.Writeashortparagraphofabout40words,comparingtheweatherinthesecities.A.Theweatherthisweekendisdifferentinfourcities.Shanghaiwillbesunnyandhot.Beijingwillberainyandcool.Guangzhouwillbecloudyandwarm.Shenzhenwillbewindyandcool.Weshouldweardifferentclothesindifferentplaces.B.Theweatherforecastforthisweekendisinteresting.Shanghaiwillbesunnyandcool.Beijingwillbesnowyandcold.Guangzhouwillbesunnyandhot.Shenzhenwillberainyandwarm.WeshouldtakeumbrellasinShenzhen.C.Theweatherthisweekendissimilarinfourcities.Shanghaiwillbesunnyandhot.Beijingwillbesunnyandcool.Guangzhouwillbesunnyandwarm.Shenzhenwillbesunnyandcool.WecanwearT-shirtsinallcities.D.Theweatherthisweekendisdifferentinfourcities.Shanghaiwillberainyandcool.Beijingwillbesunnyandhot.Guangzhouwillbewindyandcold.Shenzhenwillbecloudyandwarm.WeshouldwearcoatsinBeijingandGuangzhou.参考答案：A5.YourschoolisgoingtoorganizeacharitysaletohelpthepoorstudentsinAfrica.Writeashortnoticeofabout50words,tellingyourclassmateshowtoparticipateinit.A.Notice:OurschoolisgoingtohaveacharitysaletohelpthepoorstudentsinAfrica.Wecansellourusedbooks,clothesandtoys.Themoneyweraisewillbesenttothem.Everyoneiswelcometojoinus.Let'shelpthosewhoareinneed.B.Notice:Therewillbeacharitysaleinourschoolthisweekend.Wecanbuysecond-handgoodsfromourclassmates.ThemoneywillbeusedtohelpthepoorstudentsinAfrica.Pleasecomeandjoinus.Weneedyourhelp.C.Notice:OurschoolisgoingtohaveacharitysaletoraisemoneyforthepoorstudentsinAfrica.Wecanbringourusedbooks,clothesandtoystosell.Themoneywillbesenttothem.Pleasecomeandsupportus.Thankyou.D.Notice:AcharitysalewillbeheldinourschoolhallthisSaturday.Wecanbuyandsellsecond-handgoods.ThemoneyweraisewillbeusedtohelpthepoorstudentsinAfrica.Pleasecomeandjoinus.Wewillhaveagoodtime.参考答案：A6.Lookatthepicturebelow.Itshowsapartofakitchen.Thereisarefrigerator,acooker,atableandsomechairsintheroom.Writeashortparagraphofabout50words,describingthekitchen.A.Thisismykitchen.Thereisarefrigeratorinthecorner.Acookerisonthewall.Atableandsomechairsarenearthewindow.Therearemanydishesonthetable.Mykitcheniscleanandbright.B.Thisismykitchen.Thereisabigrefrigeratorinthemiddleoftheroom.Acookerandatablearebesidetherefrigerator.Somechairsareinfrontofthetable.Therearesomefruitsonthetable.Ilikemykitchenverymuch.C.Thisismykitchen.Thereisasmallrefrigeratorunderthewindow.Acookerandatableareinthecorner.Somechairsareagainstthewall.Therearemanyvegetablesonthetable.Mykitchenisfun.D.Thisismykitchen.Thereisarefrigeratornearthedoor.Acookerandatableareinthecorner.Somechairsarebesidethetable.Therearesomeflowersonthetable.Mykitchenisbeautiful.参考答案：A7.Yourfriendisinterestedinlearninghowtomakeamodelplane.Writeashortpassageofabout60words,givinghimsomeadviceonhowtomakeamodelplane.A.Ifyouwanttomakeamodelplane,youshouldfirstchooseaplan.Thenyouneedtogatherthematerials,suchaspaper,glueandscissors.Next,youshouldfollowthestepsintheplanandcutouttheparts.Afterthat,youshouldgluethepartstogether.Finally,youshouldpaintyourplane.Bepatientandhavefun.B.Tomakeamodelplane,youshouldfirstbuysomematerials,suchaspaper,glueandscissors.Thenyoushouldfindaplanontheinternet.Next,youshouldcutoutthepartsaccordingtotheplan.Afterthat,youshouldgluethepartstogether.Finally,youshouldflyyourplane.Becarefulandhavefun.C.Ifyouwanttomakeamodelplane,youshouldfirstfindaplan.Thenyoushouldbuythematerials,suchaspaper,glueandscissors.Next,youshouldcutoutthepartswithscissors.Afterthat,youshouldgluethepartstogetherwithglue.Finally,youshouldflyyourplane.Bebraveandhavefun.D.Tomakeamodelplane,youshouldfirstgatherthematerials,suchaspaper,glueandscissors.Thenyoushouldfindaplaninabook.Next,youshouldcutoutthepartswithaknife.Afterthat,youshouldgluethepartstogetherwithglue.Finally,youshouldflyyourplane.Besmartandhavefun.参考答案：A8.Lookatthetablebelow,whichshowsthepricesofsomefruitsinasupermarket.Writeashortparagraphofabout40words,tellingyourfriendhowtobuythefruits.A.Ifyouwanttobuyfruits,youshouldfirstdecidehowmuchmoneyyouhave.Thenyoushouldlookatthepricesinthetable.Applesare5yuanperkilogram.Bananasare3yuanperkilogram.Orangesare4yuanperkilogram.Grapesare6yuanperkilogram.Youcanchoosethefruitsyoulike.B.Ifyouwanttobuyfruits,youshouldfirstlookatthepricesinthetable.Applesarethecheapest,5yuanperkilogram.Bananasarethesecondcheapest,3yuanperkilogram.Orangesarethethirdcheapest,4yuanperkilogram.Grapesarethemostexpensive,6yuanperkilogram.Youcanchoosethefruitsyoulike.C.Ifyouwanttobuyfruits,youshouldfirstbringenoughmoney.Thenyoushouldlookatthepricesinthetable.Applesare5yuanperkilogram.Bananasare3yuanperkilogram.Orangesare4yuanperkilogram.Grapesare6yuanperkilogram.Youcanbuyasmuchasyouwant.D.Ifyouwanttobuyfruits,youshouldfirstdecidehowmanyfruitsyouwanttobuy.Thenyoushouldlookatthepricesinthetable.Applesare5yuanperkilogram.Bananasare3yuanperkilogram.Orangesare4yuanperkilogram.Grapesare6yuanperkilogram.Youcanbuythefruitsyouneed.参考答案：A标准答案与解析一、单项选择题1.参考答案：B解析：本题考查七年级下册第5单元“一般将来时”的运用。题干询问如何询问某人周末的计划，正确选项B“Wherewillyougonextweek?”使用一般将来时结构“will+baseverb”询问未来地点，符合题意。A选项询问现在正在做什么，C选项询问通常如何度过时间，D选项询问何时完成作业，均不符合询问未来计划的目的。2.参考答案：B解析：本题考查七年级下册第5单元“begoingto+baseverb”结构的运用。题干询问表达未来计划或意图的最佳结构，正确选项B“begoingto+baseverb”常用于表达事先已决定或计划好的未来行动，符合题意。A选项“will+baseverb”常用于表达预测或临时决定，C选项“presentcontinuous”常用于表达未来安排，D选项“presentsimple”常用于表达习惯性动作，均不符合题意。3.参考答案：B解析：本题考查七年级下册第5单元“begoingto+baseverb”结构的运用。题干询问谈论确定或计划好的未来事件的最佳结构，正确选项B“begoingto+baseverb”常用于表达事先已决定或计划好的未来行动，符合题意。A选项“will+baseverb”常用于表达预测或临时决定，C选项“presentcontinuous”常用于表达未来安排，D选项“presentsimple”常用于表达习惯性动作，均不符合题意。4.参考答案：B解析：本题考查七年级下册第5单元“begoingto+baseverb”结构的运用。题干询问谈论已做出的未来决定时应使用的结构，正确选项B“begoingto+baseverb”常用于表达事先已决定或计划好的未来行动，符合题意。A选项“will+baseverb”常用于表达预测或临时决定，C选项“presentcontinuous”常用于表达未来安排，D选项“presentsimple”常用于表达习惯性动作，均不符合题意。5.参考答案：B解析：本题考查七年级下册第5单元“一般将来时”的运用。题干询问询问某人未来计划的正确问题，正确选项B“Wherewillyougonextweek?”使用一般将来时结构“will+baseverb”询问未来地点，符合题意。A选项询问现在正在做什么，C选项询问通常如何度过时间，D选项询问何时完成作业，均不符合询问未来计划的目的。6.参考答案：A解析：本题考查七年级下册第5单元“will+baseverb”结构的运用。题干询问表达未来可能性的结构，正确选项A“will+baseverb”常用于表达预测或可能性，符合题意。B选项“begoingto+baseverb”常用于表达事先已决定或计划好的未来行动，C选项“presentcontinuous”常用于表达未来安排，D选项“presentsimple”常用于表达习惯性动作，均不符合题意。7.参考答案：B解析：本题考查七年级下册第5单元“begoingto+baseverb”结构的运用。题干询问谈论已决定的未来行动时应使用的结构，正确选项B“begoingto+baseverb”常用于表达事先已决定或计划好的未来行动，符合题意。A选项“will+baseverb”常用于表达预测或临时决定，C选项“presentcontinuous”常用于表达未来安排，D选项“presentsimple”常用于表达习惯性动作，均不符合题意。8.参考答案：B解析：本题考查七年级下册第5单元“begoingto+baseverb”结构的运用。题干询问谈论未来安排时应使用的结构，正确选项B“begoingto+baseverb”常用于表达事先已决定或计划好的未来行动，符合题意。A选项“will+baseverb”常用于表达预测或临时决定，C选项“presentcontinuous”常用于表达未来安排，D选项“presentsimple”常用于表达习惯性动作，均不符合题意。9.参考答案：B解析：本题考查七年级下册第5单元“一般将来时”的运用。题干询问询问某人未来计划的正确问题，正确选项B“Wherewillyougonextweek?”使用一般将来时结构“will+baseverb”询问未来地点，符合题意。A选项询问现在正在做什么，C选项询问通常如何度过时间，D选项询问何时完成作业，均不符合询问未来计划的目的。10.参考答案：B解析：本题考查七年级下册第5单元“begoingto+baseverb”结构的运用。题干询问表达未来意图的结构，正确选项B“begoingto+baseverb”常用于表达事先已决定或计划好的未来行动，符合题意。A选项“will+baseverb”常用于表达预测或临时决定，C选项“presentcontinuous”常用于表达未来安排，D选项“presentsimple”常用于表达习惯性动作，均不符合题意。二、填空题1.参考答案：went解析：本题考查一般过去时的用法。根据题干中的“yesterdayafternoon”可知，动作发生在过去，因此使用一般过去时态。go的一般过去时是went。2.参考答案：didn’twatch解析：本题考查一般过去时的否定形式。根据题干中的“lastnight”可知，动作发生在过去，因此使用一般过去时态的否定形式。watch的一般过去时是watched，否定形式是didn’twatch。3.参考答案：wasdoing;rang解析：本题考查过去进行时和一般过去时的用法。根据题干中的“when”可知，两个动作都发生在过去，但“doing”的动作是正在进行，因此使用过去进行时态；而“ring”的动作是突然发生的，因此使用一般过去时态。do的一般过去时是did，但这里需要用过去进行时wasdoing；ring的一般过去时是rang。4.参考答案：was;is解析：本题考查一般过去时和一般现在时的用法。根据题干中的“2010”和“thisyear”可知，第一个空格的动作发生在过去，因此使用一般过去时态；第二个空格的动作发生在现在，因此使用一般现在时态。be的一般过去时是was，一般现在时是is。5.参考答案：havelived解析：本题考查现在完成时的用法。根据题干中的“since2015”可知，动作从过去开始并持续到现在，因此使用现在完成时态。live的现在完成时是havelived。6.参考答案：havebeen解析：本题考查现在完成时的用法。根据题干中的“fortwoweeks”可知，动作从过去开始并持续到现在，因此使用现在完成时态。be的现在完成时是havebeen。7.参考答案：Are;doing解析：本题考查现在进行时的用法。根据题干中的“now”可知，动作正在进行，因此使用现在进行时态。do的现在进行时是aredoing。8.参考答案：did;do解析：本题考查一般过去时的用法。根据题干中的“yesterdayevening”可知，动作发生在过去，因此使用一般过去时态。do的一般过去时是did。9.参考答案：Did;go解析：本题考查一般过去时的疑问句形式。根据题干中的“yesterday”可知，动作发生在过去，因此使用一般过去时的疑问句形式。did的疑问句形式是Did，go的一般过去时是went。10.参考答案：areplaying解析：本题考查现在进行时的用法。根据题干中的“now”可知，动作正在进行，因此使用现在进行时态。play的现在进行时是areplaying。三、判断题1.参考答案：×解析：本题考查现在进行时。题干描述的是“她现在在图书馆读书”，应该使用现在进行时，即"Sheisreadingabookinthelibrarynow."但题干给出的句子是陈述事实的简单现在时，所以判断为错误。2.参考答案：√解析：本题考查过去时态。题干描述的是“他们昨天下午去了公园”，应该使用过去时态，即"Theywenttotheparkyesterdayafternoon."句子表述正确。3.参考答案：×解析：本题考查将来时态。题干描述的是“他们下周去拜访他们的祖父母”，应该使用将来时态，即"Theywillvisittheirgrandparentsnextweekend."但题干给出的句子是陈述事实的简单现在时，所以判断为错误。4.参考答案：√解析：本题考查现在进行时。题干描述的是“猫正在沙发上睡觉”，应该使用现在进行时，即"Thecatissleepingonthesofa."句子表述正确。5.参考答案：×解析：本题考查过去时态。题干描述的是“我父亲上个月买了一辆新车”，应该使用过去时态，即"Myfatherboughtanewcarlastmonth."但题干给出的句子是陈述事实的简单现在时，所以判断为错误。6.参考答案：√解析：本题考查现在进行时。题干描述的是“我们现在在学校吃午饭”，应该使用现在进行时，即"Wearehavinglunchatschoolnow."句子表述正确。7.参考答案：×解析：本题考查过去时态。题干描述的是“电影昨天晚上7点开始”，应该使用过去时态，即"Themoviestartedat7:00p.m.yesterdayevening."但题干给出的句子是陈述事实的简单现在时，所以判断为错误。8.参考答案：√解析：本题考查现在进行时。题干描述的是“他们在操场上打篮球”，应该使用现在进行时，即"Theyareplayingbasketballintheplayground."句子表述正确。9.参考答案：×解析：本题考查过去时态。题干描述的是“老师昨天给我们布置了作业”，应该使用过去时态，即"Theteachergaveushomeworkyesterday."但题干给出的句子是陈述事实的简单现在时，所以判断为错误。10.参考答案：√解析：本题考查现在时态。题干描述的是“我今天早上去了超市”，应该使用现在时态，即"Iwenttothesupermarketthismorning."句子表述正确。四、简答题1.参考答案：Itisusedtodescribeactionshappeningatthemomentofspeaking,temporarysituations,orongoingprocesses.解析：本题考查presentcontinuoustense的功能。该时态主要用于描述说话时正在发生的动作、暂时的情况或持续的过程。解析中点明了presentcontinuoustense的三个主要功能，即瞬间动作、临时状态和进行性状态，符合七年级下册第5单元所学知识。2.参考答案：Youuse"donot"or"don't"fortheauxiliaryverbandplacethemainverbinitsbaseform.Forexample,"Hedoesnotstudy"or"Hedoesn'tstudy".解析：本题考查presentsimpletense的否定句构成。否定句需要使用助动词"donot"或"don't"，主语是第三人称单数时用"doesnot"或"doesn't"，动词用原形。解析中给出了构成规则和例句，符合七年级下册第5单元所学知识。3.参考答案：Forexample,"IwatchTVeveryevening."Thissentencedescr