外研版英语七年级下册知识点总结

外研版英语七年级下册知识点总结同学们，七年级下册的英语学习，是在七年级上册基础上的深化和拓展，知识点的广度和深度都有提升。为了帮助大家更好地梳理和巩固所学内容，我将本册的核心知识点进行了归纳总结。希望这份总结能成为你们学习路上的得力助手。一、核心语法1.1一般过去时(SimplePastTense)*含义：表示过去某个时间发生的动作或存在的状态。*构成：*be动词：主语+was/were+其他。(I/He/She/Itwas;You/We/Theywere)*实义动词：主语+动词过去式+其他。*标志词：yesterday,thedaybeforeyesterday,lastweek/month/year,ago,justnow,in+过去的年份等。*动词过去式构成：*规则变化：*一般在动词原形后加-ed。(如：play-played,work-worked)*以不发音的e结尾的动词加-d。(如：live-lived,like-liked)*以辅音字母加y结尾的动词，变y为i再加-ed。(如：study-studied,carry-carried)*以重读闭音节结尾，且末尾只有一个辅音字母，双写该辅音字母再加-ed。(如：stop-stopped,plan-planned)*不规则变化：需特殊记忆，如：go-went,eat-ate,see-saw,take-took,make-made,do-did,is/am-was,are-were,have/has-had。*否定句：*be动词：主语+wasn't/weren't+其他。*实义动词：主语+didn't+动词原形+其他。*一般疑问句：*be动词：Was/Were+主语+其他？(肯定回答：Yes,主语+was/were.否定回答：No,主语+wasn't/weren't.)*实义动词：Did+主语+动词原形+其他？(肯定回答：Yes,主语+did.否定回答：No,主语+didn't.)1.2情态动词can,may,must,should的用法*can：表示“能，会”（能力）；“可以”（许可，口语中常用could表委婉请求）。*否定式：can't(cannot)。*疑问式：Can...?*may：表示“可以”（许可，比can更正式）；“可能”（推测）。*否定式：maynot。*must：表示“必须，一定”（义务、命令或肯定推测）。*否定式：mustn't(禁止，不允许)/needn't(不必)。*疑问式：Must...?(肯定回答：Yes,youmust.否定回答：No,youneedn't/don'thaveto.)*should：表示“应该”（建议、劝告）。*否定式：shouldn't。*疑问式：Should...?1.3形容词和副词的比较级*形容词比较级：用于两者之间的比较，表示“更……”。*规则变化：*一般单音节词和少数双音节词，在词尾加-er。(如：tall-taller,short-shorter,fast-faster)*以不发音的e结尾的词，加-r。(如：nice-nicer,large-larger)*以辅音字母加y结尾的词，变y为i，再加-er。(如：happy-happier,easy-easier)*以重读闭音节结尾，且末尾只有一个辅音字母，双写该辅音字母，再加-er。(如：big-bigger,hot-hotter,thin-thinner)*不规则变化：good/well-better,bad/badly-worse,many/much-more,little-less,far-farther/further。*常用句型：A+be+形容词比较级+than+B.(A比B更……)*副词比较级：用法与形容词比较级类似，用于修饰动词、形容词或其他副词，表示动作或状态的程度。*规则变化：大部分在词尾加-more或-er。(如：fast-faster,early-earlier,carefully-morecarefully,quickly-morequickly)*不规则变化：与形容词不规则变化相同。*常用句型：A+动词+副词比较级+than+B.(A做某事比B更……)1.4名词的数*可数名词复数：*规则变化：直接加-s；以s,x,ch,sh结尾加-es；以辅音字母加y结尾，变y为i加-es；以o结尾，有生命的加-es(如：potato-potatoes,tomato-tomatoes)，无生命的加-s(如：photo-photos,radio-radios)；以f/fe结尾，变f/fe为v加-es(如：leaf-leaves,knife-knives)。*不规则变化：如：man-men,woman-women,child-children,foot-feet,tooth-teeth,sheep-sheep,fish-fish(强调种类时可加-es)。*不可数名词：没有复数形式，表示数量时需用“数词+量词+of+不可数名词”。(如：acupoftea,twobottlesofwater)二、重点词汇与短语2.1常用动词及动词短语*go：gotoschool,gohome,goshopping,goswimming,goforawalk,goonatrip,goout*do：dohomework,dohousework,dosomereading,dosports,dowellin*make：makefriends,makeacake,makeaplan,makemoney,makeamistake*take：takephotos,takeabus,takeoff,takeout,takecareof,takepartin*get：getup,geton,getoff,getto,getreadyfor,getonwellwith*look：lookat,lookfor,lookafter,looklike,lookforwardto(doingsth.)*put：puton,putoff,putup,putaway*give：giveup,giveback,giveaway,givesb.sth./givesth.tosb.*have：havebreakfast/lunch/dinner,havealesson,haveagoodtime,havearest,haveacold2.2常用名词*学校与学习：school,classroom,teacher,student,classmate,lesson,subject,homework,book,pen,pencil*家庭与朋友：family,father,mother,brother,sister,friend,parent(s),grandparent(s)*食物与饮料：food,rice,noodles,meat,fish,fruit,vegetable,apple,banana,orange,milk,water,juice,coffee,tea*运动与爱好：sport,basketball,football,swimming,running,music,book,film2.3常用形容词与副词*形容词：big,small,tall,short,long,new,old,young,good,bad,happy,sad,angry,hungry,thirsty,tired,busy,free,easy,difficult,interesting,boring,beautiful,cool,hot,cold,warm,cheap,expensive*副词：fast,slowly,quickly,well,badly,very,much,too,so,often,usually,sometimes,never,always,here,there,now,then2.4其他重要短语*固定搭配：alotof/lotsof,alittle,afew,howmany,howmuch,whatabout...?,howabout...?,let's...,wouldliketodosth.,wanttodosth.,helpsb.(to)dosth.,likedoingsth./liketodosth.三、常用句型与表达3.1谈论过去的经历*Wheredidyougo?Iwentto...*Whatdidyoudo?I(did)...*Howwasyourweekend?Itwasgreat/good/OK/bad...*Didyouhaveagoodtime?Yes,Idid./No,Ididn't.3.2描述人或事物*What'sitlike?It'sbig/small/beautiful...*This/Thatis...These/Thoseare...*It's+adj.+todosth.(做某事是……的)3.3提出建议与请求*Whydon'tyou...?/Whynot...?(为什么不……呢？)*Howabout...?/Whatabout...?(……怎么样？)*Youshould...(你应该……)*Can/Couldyou(please)...?(你能……吗？)*MayI...?(我可以……吗？)3.4表达能力与喜好*Ican(swim).Ican't(fly).*He/Shecan(playbasketball).He/Shecan't(sing).*Whatcanyoudo?Ican...*Doyoulike...?Yes,Ido./No,Idon't.*What'syourfavouritesport/food/subject...?Myfavourite...is...3.5谈论天气与季节*How'stheweather?It's...*Whichseasondoyoulikebest?Ilike...best.*Whydoyoulike...?Becauseit's...四、日常交际用语*问候与告别：Hello!/Hi!Goodmorning/afternoon/evening.Goodbye!/Bye!Seeyou.*介绍与回应：Thisis...Nicetomeetyou.Nicetomeetyou,too.*提供帮