七年级下册Unit4知识点梳理（学生版）

Unit4Don’teatinclass单元语法单元语法一、祈使句表达命令、请求、劝告、警告、禁止等的句子叫作祈使句。祈使句最常用于表达命令，因其主语是第二人称you且往往被省略，因此祈使句一般以动词原形开头。Eg.Goandwashyourhands.去洗洗你的手。（命令）Bequiet,please.请安静。（请求）Practicetheguitareveryday.每天练习吉他。（建议）类型句型结构示例Do型肯定：动词原形（+其他成分）.Standup.起立。否定：+动词原形（+其他成分）.Don’tplaywithfire.不要玩火。Be型肯定：Be+表语(一般为形容词).Becalm.冷静。否定：+be+表语（+其他成分）.Don’tbestupid.别犯傻。Let型肯定：Let+宾语+动词原形（+其他成分）.Let’sgoswimming.咱们去游泳吧。否定：①Don’tlet+宾语+动词原形（+其他成分）.②Let+宾语+not+动词原形（+其他成分）.Don’tlethimgo.别让他走。=Lethimnotgo.【*拓展】No型祈使句：表示禁止，常用于标语、警示语的否定祈使句结构为：“No+动词ing形式”或“No+可数名词复数形式/不可数名词”。1.Molly,_________afraidofspeakinginfrontofpeople.Youarethebestone.A.don’tB.notC.notbeD.don’tbe2.“No_________!”saysthesign.A.smokeB.smokingC.smokesD.tosmoke3.It’slate,Teresa._________earliernexttimeandyou’llhaveenoughtimetohavebreakfast.OK,Mom.I’llremember.A.GetupB.GettingupC.TogetupD.Getsup4._________thisrockmusic,please.I’mafraidsomepeoplecan’tstandthenoise!A.StoppingB.StopC.StopsD.Stopped5._________callmeWangwang!It’smydog’sname.A.Not

B.NoC.Don’tD.Doesn’t二、情态动词must、haveto情态动词must表示说话人的主观看法(主动)，表示“必须、必要”。其否定形式为mustnot=mustn’t，意为“禁止；千万不要”。无人称和数的变化，不能单独使用，必须与其后的动词原形构成谓语。句型结构：主语+must+动词原形+其他.Imustdomyhomeworkbeforedinner.晚饭前我必须做作业。【拓展延伸】以must开头的一般疑问句的否定回答mustn’t(×)needn’t或者don’t/doesn’thaveto(√)Eg.—MustIdomyhomeworknow?我必须现在做我的作业吗？—Yes,youmust./No,youneedn’t/don’thaveto.是的，你必须。/不，你不必。情态动词haveto表示必须,强调客观需要,不得不、被逼无奈做某事。①有人称、单复数的变化②有动词时态的变化。has/had/haveto否定形式和疑问句形式均需要借助助动词do才可以进行变化。1.–Canyougotoseeamoviewithusthisevening?Sorry,Ican’t.I____takecareofmylittlebrotherathomebecausemymotherisill.A.can B.must C.would D.haveto2.You_____crosstheroadwhenthetrafficlightsarered.A.mustn’t B.can’t C.wouldn’t D.needn’t3.MustIgotomedicalschoolandbeadoctorlikeyou,Dad?No,you____,son.You’refreetomakeyourowndecision.A.can’t B.mustn’t C.shouldn’t D.needn’t4.MayIgooutnow,Dad?No.You____letyourmotherknowfirst.A.can B.may C.need D.must5.–Ican’tstopsmoking,doctor.Foryourhealth,I’mafraidyou______.may B.need C.haveto D.must6.Listenguys.Everyone________wearamask（口罩）.Goandbuyoneifyoudon’thaveone.A.can’tB.canC.mustn’tD.must7.You________smokehere!Lookatthesign.Itsays“Nosmoking!”A.needn’tB.mustn’tC.mayD.can知识点梳理知识点梳理考点1“到达”的三种表达IwillarriveinShanghaitomorrow.我将于明天到达上海。Iusuallyarriveatschoolat7:50inthemorning.我通常在早上7:50到达学校。arrive不及物动词，意为“到达”，其后不能直接跟宾语。arrive有介词，arrivein+大地点（国家、城市等）；arriveat+小地点（车站、学校等）Whattimedoesthetrainarrive?火车什么时候到？get有介词，getto+地点名词Tinagetstothezoobybike.蒂娜骑自行车到动物园。reach无需介词，直接reach+地点IreachZhuhai.我到达了珠海。*注意：当其后接地点副词here、there以及home时，介词to/in/at常省略Igethome.我回到家了。vsIgettoschool.我回到学校了。Howdidyouarrive/getthere?你是怎样到达那里的1.We________schoolat7:00everyday.A.getB.goC.arriveD.arriveat2.Alicecanarrive________herebefore8:00.A.inB.atC.forD./3.Tomnever_________(arrive)homelateafterschool.4.我们必须在7点之前到达学校。（翻译句子）______________________________________________________________________________.考点2ontime的用法Youmustbeontime.你必须准时。（be）ontime固定短语，意为“准时；按时”【*拓展】time的其他短语timetime及时forthefirsttime第一次atthesametime同时attimes有时；偶尔fromtimetotime有时allthetime一直；总是1.我们每天必须按时到校。（完成句子）Wehavetogettoschool________________everyday.2.没有及时赶上公交车，他因此不能准时到那里。（完成句子）Shedidn’tcatchthebus________time,soshecouldn’t________there________time.考点3“听”的三种表达Don’tlistentomusicinclass.不要在课堂上听音乐。单词用法固定搭配listen意为“听；倾听”，侧重听的动作，接宾语时须加to_________________听音乐hear意为“听见；听到”，侧重听的结果hearsbdosth./hearsbdoingsth.sound意为“听起来”，后面接词作表语Thatsoundsgood.【拓展】inclass意为“在课堂上；上课时”，intheclass意为“在班里”。Eg.Listentoyourteachercarefullyinclass.在课堂上要认真听老师讲课。Thereare40studentsintheclass.这个班有40名学生。1.Don’t________musicintheclassroom.A.listenB.listensC.tolistenD.listento2.Weall________themancarefully,butwecan’t________whathesays.A.listento;listentoB.listento;hearC.hear;listentoD.hear;hear3.玛丽,做作业的时候不要听音乐。（完成句子）Mary,________________________musicwhenyoudoyourhomework.考点4important的用法ItisItisimportantforsb.todosth.意为“对某人来说做某事很重要”important形容词“重要的”importance名词“重要性”theimportancetheimportanceof...意为“…的重要性”Ihavesome________________newstotellyou.我有一些重要消息要告诉你。2.Weallknowthe________________ofEnglish.我们都知道英语的重要性。3.Itisimportant________ustomakefulluseoftime.A.for B.of C.with D.to考点5三个“拿”的用法单词含义及用法bring“带来”，强调将某人或某物从别的地方带到说话者所在的地方来(远➡近)常用搭配：bringsth./sb.to...把某物/某人带到……take“带走；拿走”，强调说话者所在的地方将某人或某物带到别的地方去(近➡远)get“去拿；去取”，离开说话者所在的地方去取某物后再回来，强调动作的往返(一来一回)1.Kate,________yourhomeworkheretomorrow.A.bring B.brings C.take D.takes2.Canyou________yourbaseball________school?A.take;inB.bring;toC.bring;inD.need;to考点6practice的用法+代词+代词Pleasepracticeit.请练习它。practice(动词)练习+名词Let’spracticemusicskills.让我们一起练习音乐技巧吧。+动词ing形式Let’spracticespeakingEnglishtogether.让我们一起练习说英语吧。重点：常用搭配：练习做某事【*拓展】practice还可作名词时，意为“练习；实践”。Itneedsalotofpracticetoplaythepianowell.弹好钢琴需要大量的练习。1.Don’tpractice________basketballinyourhouseatnight.A.playing B.toplay C.play D.plays2.Ihavetopractice________(speak)Englisheveryday.3.他周末通常练习弹吉他。（完成句子）Heusually________________________________onweekends.考点7help的用法help用作动词，意为“帮助；援助”，其常见用法如下：helphelphelpsb.withsth.帮助某人某事帮助某人做某事helponeselfto...随便吃...【*拓展】help还可作不可数名词，意为“帮助；援助”。1.Weoftenhelptheoldman________.A.todosomecleaningB.cleanedC.cleansD.cleaning2.SunHaiwashelpinghismother________dinnerwhenhisfathergothomefromwork.A.makingB.makesC.tomakeD.made考点8辨析toomany,toomuch与muchtoo【易混辨析】toomuch副词词组，表示“……得太多”，修饰动词eattoomuch吃得太多形容词词组，表示“太多”，修饰（可数/不可数）名词toomany形容词词组，表示“太多”，修饰（可数/不可数）名词muchtoo副词词组，表示“太……”，修饰形容词或副词1.Thereare_______rulesinmyhome.Wehave_______homeworktodotoday.A.toomany;toomuchB.toomuch;manytooC.toomany;muchtooD.muchtoo;manytoo2.Ihave_______thingstodotoday,soI’m_______busy.A.toomany;toomanyB.toomany;muchtooC.toomuch;muchtooD.toomuch;toomany3.Wehave_______rulesintheEnglishclub.A.toomuchB.toomanyC.muchtooD.manytoo考点9四个看【易混辨析】“四个看”：read,watch,look与see单词用法read“阅读”，如看报、看书、看杂志等，后接newspaper,letter等词watch“（聚精会神地）看；注视”，如watchTV/match/game等look强调“看”的动作，是不及物动词，后面不能直接跟宾语，需要与介词at连用再接宾语lookat...see强调“看”的结果，意为“看见”，如seeaboy“看到一个男孩”1.Myfather_______newspaperseverymorning.我爸爸每天早上看报纸。2.Tomlikes_______footballmatches.汤姆喜欢看足球比赛。3._______atthispicturecarefully.认真看这种图片。4.I_______abirdinthetree.我看到树上有一只鸟。考点10strict和remember的用法strict形容词，意为“严格的；严厉的”。常考短语：bestrictwithsb.对某人要求严格；bestrictinsth.对某事严谨Eg.Heisverystrictwithhisstudents.他对他的学生要求非常严格。1.MissWangisstrict_______us_______ourwork.A.with;withB.in;inC.with;in考点11remember的用法【易混辨析】重点：remembertodosth.与rememberdoingsth.remembertodosth.“记着要去做某事”，说明事情还没有做Remembertocallmeupwhenyougethere.rememberdoingsth.“记得做过某事”，说明事情已经做过了Irememberseeingherinthiscity.1.John,remember_______offthelightswhenyouleavetheroom.A.turnB.turnedC.toturnD.turning2.一Pleaseremember_______soccerwithusnextweek.一OK.Noproblem.A.toplayB.playing C.play D.plays3.Remember________(do)yourhomeworkfirstafterschool.4.请记得遵守学校里的规定。

Please

_________

_________

_________

the

school

rules.考点12keep的用法...Ihaveto/mustkeepmyhairshort.……我必须留短发。keep及物动词，意为“保持；保留”，常用于“keep+名词+宾语补足语”结构，其中，宾语补足语通常由形容词、副词、介词短语或动词ing形式等充当，意为“保持……处于某种状态”。Eg.Wemustkeeptheclassroomclean.我们必须保持教室干净。I’msorrytokeepyouwaiting.对不起，让你久等了。1.Fruitsandvegetablescanbehelpfultokeeppeople________(healthy).2.Theboss(老板)alwayskeepstheseworkers________(work)over10hoursaday.Unit4Don’teatinclass单元作文单元作文假如你是Eric，请你给Dr.Know写一封信，告诉他你必须遵守的家规、校规及你的感受。要求:语句通顺,表达流畅,可以适当发挥;词数80左右。自我感受规则细节写作目的自我感受规则细节写作目的范文一：DearDr.Know,Therearetoomanyrulesinmylife!Athome,Ihavetohelpmymomanddaddothedisheseveryday.AndIhavetocleanmyroomonSaturdays.Ican’tgooutwithmyfriendsonweekends.Atschool,wecan’teatinclass.Wehavetowearaschooluniform.Andwecan’tbenoisyinthehallways.HowcanIrelaxwithsomanyrules?WhatshouldIdo?KenLi范文二：DearDr.Know,Canyouhelpme?I’mnothappybecausetherearetoomanyrules.Everymorning,Ihaveto/mustgetupatsixo’clock.Atschool,Ihaveto/mustwearaschooluniform,andIhaveto/mustkeepmyhairshort.Afterschool,Ican’tplaywithmyfriendsorwatchTVbecauseIhaveto/mustdomyhomework.Ican’trelaxonweekendseitherbecauseIhaveto/mustlearntoplaythepiano.Ineverhavefun.WhatcanIdo?ZhaoPei词汇梳理词汇梳理词汇变形小结：1.listen听；倾听(v.)→____________(n.)倾听者2.important重要的(adj.)→____________(n.)重要性→____________(adv.重要地)3.quiet安静的(adj.)

→____________(adv.)安静地4.dish碟；盘(n.)→

____________(复数)5.more更多的(adj/pron.)→____________(adj.)许多6.noisy吵闹的(adj.)→____________(n.)噪音7.relax放松；休息(v.)→____________(adj.)令人放松的→____________(adj.)放松的8.read