人教版八年级英语下册重点短语、句型及语法

人教版八年级英语下册重点短语、句型及语法一、重点短语归纳短语是语言的砖瓦，积累并灵活运用短语，能让你的表达更地道、更生动。以下按功能和场景分类整理：1.动词短语(VerbalPhrases)*growup:长大；成熟*例：Whatdoyouwanttobewhenyougrowup?*makesure:确保；查明*例：Makesureyoulockthedoorbeforeleaving.*lookforwardto:期待；盼望(to为介词，后接名词、代词或动名词)*hearfrom:收到……的来信*例：Ihaven'theardfrommypenpalforalongtime.*getonwith:和睦相处；关系良好*例：Hegetsonwellwithhisclassmates.*takeup:(尤指为消遣)开始从事；占据(时间、空间)*giveup:放弃*例：Nevergiveupyourdreams.*putoff:推迟*handin:上交*例：Pleasehandinyourhomeworktomorrow.*tryout:参加……选拔；试用*例：Heisgoingtotryoutfortheschoolbasketballteam.2.介词短语(PrepositionalPhrases)*infrontof:在……前面(范围外)*inthefrontof:在……前部(范围内)*becauseof:因为；由于(后接名词、代词或动名词)*例：Hedidn'tgotoschoolbecauseofhisillness.*insteadof:代替；而不是*例：Iwillgoinsteadofyou./Hestudiesinsteadofplaying.*asfor:至于；关于*例：Asforme,Ipreferteatocoffee.*accordingto:依据；按照*alotof/lotsof:许多；大量(既可修饰可数名词复数，也可修饰不可数名词)*kindof/alittlebit:有点儿；稍微(修饰形容词或副词)*例：Thestoryiskindofinteresting.*atleast:至少*例：Youshouldreadatleastfivebooksamonth.*sofar:到目前为止*例：Sofar,wehavelearnedabouttwothousandEnglishwords.*intheend:最后；终于*例：Theyfoundthelostchildintheend.*allinall:总的来说*例：Allinall,itwasagreattrip.二、核心句型解析掌握句型是进行有效交流和书面表达的基础。以下为八年级下册需重点掌握的核心句型：1.谈论能力与许可*Can/Couldyou...?(请求许可或帮助)*例：Canyouhelpmecarrythisbox?*例：Couldyoupleasetellmethewaytothestation?(语气更委婉)*Ican/can't...(表达自己能或不能做某事)*例：Icanswim,butIcan'tskate.*MayI...?(请求许可，较正式)2.提出建议与表达看法*Whatabout...?/Howabout...?(……怎么样？用于提出建议，后接名词、代词或动名词)*例：Whataboutgoingforawalk?*Whydon'tyou...?/Whynot...?(你为什么不……呢？用于提出建议)*Youshould/shouldn't...(你应该/不应该……)*例：Youshouldstudyharder./Youshouldn'teattoomuchjunkfood.*Ithink/believe(that)...(我认为/相信……)*例：Ithink(that)Englishisveryimportant.*Inmyopinion,...(在我看来，……)*例：Inmyopinion,thisbookisveryinteresting.3.描述过去的经历与状态*Iusedto...(我过去常常……，表示过去习惯性的动作或状态，现在已改变)*例：Iusedtoplayfootballafterschool.(现在可能不踢了)*Didyou...?/Wereyou...?(一般过去时的一般疑问句)*例：Didyougototheparkyesterday?/Wereyouathomelastnight?*Iwas/were.../Idid...(一般过去时的肯定句)*例：Iwasveryhappyyesterday./Ifinishedmyhomeworkanhourago.4.表达喜好与厌恶*Ilike/love/enjoy(doing)sth.(我喜欢做某事)*例：Ilikereadingbooks./Sheenjoyslisteningtomusic.*Idon'tlike/hate(doing)sth.(我不喜欢/讨厌做某事)*例：Idon'tlikeswimmingincoldwater./Hehatesgettingupearly.*prefer...to...(比起……更喜欢……)*例：Ipreferteatocoffee./Shepreferssingingtodancing.5.谈论数量与程度*Howmany...?(多少……？修饰可数名词复数)*例：Howmanybooksdoyouhave?*Howmuch...?(多少……？修饰不可数名词)*例：Howmuchwateristhereinthebottle?*toomany/toomuch:太多(前者修饰可数名词复数，后者修饰不可数名词)*例：Therearetoomanypeopleinthebus./Youdrinktoomuchcoffee.*enough...to...:足够……去做……*例：Theboyisoldenoughtogotoschool./Wehaveenoughtimetofinishthework.三、语法要点精析语法是语言的骨架，清晰的语法概念能帮助我们正确理解和生成语言。1.一般过去时(SimplePastTense)*构成:*规则动词：动词原形+-ed(played,worked,watched)*不规则动词：需特殊记忆(go-went,eat-ate,see-saw,do-did,is/am-was,are-were)*否定句：主语+didn't+动词原形+...*一般疑问句：Did+主语+动词原形+...?*用法:*表示过去某个时间发生的动作或存在的状态。常与表示过去的时间状语连用，如：yesterday,lastweek,twodaysago,in2020,justnow等。*例：IwenttoBeijinglastsummer./Shewasastudentthreeyearsago./DidyouwatchTVlastnight?*提示:不规则动词的过去式是学习重点和难点，务必多读多记。2.过去进行时(PastContinuousTense)*构成:主语+was/were+动词-ing形式+...*(I/He/She/It+was;You/We/They+were)*否定句：主语+wasn't/weren't+动词-ing形式+...*一般疑问句：Was/Were+主语+动词-ing形式+...?*用法:*表示过去某个特定时间正在进行的动作。常与"at8o'clocklastnight","thistimeyesterday","when/while引导的时间状语从句"等连用。*例：Iwasdoingmyhomeworkatninelastnight./TheywereplayingbasketballwhenIsawthem.*与一般过去时的区别:过去进行时强调动作在过去某时刻的“持续性”，一般过去时强调动作在过去的“发生”或“完成”。3.情态动词(ModalVerbs)*can/could:*表示能力：can(现在/将来),could(过去)。*例：IcanspeakEnglish./Shecouldswimwhenshewasfive.*表示请求或许可：could比can语气更委婉。*例：Can/CouldIborrowyourpen?*may/might:*表示请求或许可：may较正式，might语气更弱，可能性更小。*例：MayIleavenow?/Youmightberight.*must/haveto:*must:表示主观上的“必须”、“应该”。否定式mustn't表示“禁止”。*haveto:表示客观上的“不得不”、“必须”，有人称、数和时态的变化(hasto,hadto)。*例：Imuststudyhard.(我认为我必须)/Ihavetostudyhard.(因为某种原因我不得不)/Youmustn'tsmokehere.*should/shouldn't:表示“应该”、“不应该”，常用来提建议或表达看法。*例：Youshouldlistentoyourparents./Youshouldn'tbelate.*规则变化:*单音节词和部分双音节词：*比较级：-er(tall-taller,fast-faster)*最高级：-est(tall-tallest,fast-fastest)*以不发音e结尾：-r,-st(nice-nicer-nicest)*以辅音字母+y结尾：变y为i+-er,-est(happy-happier-happiest)*重读闭音节、末尾只有一个辅音字母：双写末尾辅音字母+-er,-est(big-bigger-biggest,hot-hotter-hottest)*多音节词和部分双音节词：*比较级：more+原级(beautiful-morebeautiful)*最高级：most+原级(beautiful-mostbeautiful)*不规则变化(需特殊记忆)：*good/well-better-best*bad/badly/ill-worse-worst*many/much-more-most*little-less-least*far-farther/further-farthest/furthest*常用句型:*比较级：A+be+比较级+than+B.*例：TomistallerthanJim./Thisbookismoreinterestingthanthatone.*最高级：A+be+the+最高级+(名词)+in/of+范围.*例：He