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2021-2022学年仁爱英语八年级上册unit4知识点(详细版)八年级上册unit4topic1语法形容词和副词的比较一,比较级:Abe/v+比较级+thanB?“A比B更。。”二,最高级:主语+be/v+(the)+最高级+比较范围???(比较范围:ofthe复数/in+地点)三,比较级,最高级的变化规则一般直接在词尾加er/est以不发音e结尾的,直接加r/st以一个元音字母加一个辅音字母结尾的重读闭音节,双写结尾的辅音字母再加er/est以辅音字母加y结尾的,把y变i再加er/est?部分双音节词和全部多音节词要在词前加more/most不规则变化good/well-better-best好?bad/ill-worse-worst坏many/much-more-most许多?little-less-least少far-farther-farthest距离远?far-further-furthest程度深四,比较级前可以加much/even/still/alittle等表强调五,比较级表达最高级比较级+thananyother+名词单数“比其他任何。都更”比较级+thantheother+名词复数“比其他。都更。”Mikegetstoschoolearlierthananyotherstudentinhisclass.迈克比他们班上任何一个其他的同学到校都早。=Mikegetstoschoolearlierthantheotherstudentsinhisclass.迈克比他们班上其他的同学到校都早。=Mikegetstoschoolearliestinhisclass.?迈克在他们班到校最早。TheYangtzeRiverislongerthananyotherriverinChina.长江比中国的任何一条其他的河都长。=TheYangtzeRiverislongerthantheotherriversinChina.?长江比中国的其他所有的河都长。=TheYangtzeRiveristhelongestriverinChina.?长江是中国最长的河流。六,比较级的特殊用法1.比较级and比较级“越来越”moreandmore?lessandless?fewerandfewer?higherandhigher?fatterandfatter?2.the比较级,the比较级“越。。。越。。。”themore,thebetter?theharder,thebetter?短语thinkof想到,认为thinkabout考虑livein住在(大地点)liveat住在(小地点)livewith和。。住overthere在那边mustbe(表推测)一定是can’tbe(表推测)一定不是maybe(表推测)可能是chatwith和。。聊天playwith和。。玩liveahappy/hardlife过着幸福/艰难的生活mouse—mice(复数)老鼠sheep/deer鹿/fish复数不变goose-geese鹅??foot-feet脚?tooth—teeth牙齿?Idon’tthinkso.我不这么认为talkto对某人讲talkwith和。。交谈talkabout谈论Whichdoyoulikebetter,AorB?两者选择用比较级Whichdoyoulikebest,A,BorC?三者最高级friendly—friendlier/morefriendly???—friendliest/themostfriendly友好的(形容词)makeushappy使我们开心singtous对我们唱歌both…and两者都(谓语用复数)asweknow众所周知sharesthwithsb和某人分享某事物beimportanttosb对某人重要danger危险名词—-dangerous危险的adjcoverAwithB????用B覆盖A?????——AbecoveredwithB?A被B覆盖nowhereelse没有别的什么地方lotsof=alotof=plentyof+可数复数/不可数“许多”otherdifferentkindsof其他不同种类的thousandsof=thousandsandthousandsof数以千计over=morethan超过,多于keepthewatercycling保持水循环playanimportantpart/rolein在。。中起重要作用thelungsoftheearth地球的肺dieout灭绝formanyreasons因为很多原因rainforestsarebecomingsmallerandsmaller雨林正变得越来越小?beindanger在危险中beinneed在需要中beintrouble在麻烦中feed/liveon以。。为食lessandlessland越来越少的土地Pandasarebecomingfewerinnumber.熊猫的数量正变少unit4topic2语言点短语:AterribleearthquakestruckQinghai.一场可怕的地震侵袭了青海strike-struck侵袭whenandwhere何时何地falldown—felldown倒塌die—died死,动词???????????????dead?adj死的????????????????????dying?adj?垂死的/die的现在分词missing/lost??adj丢失的?????????????be/getlost=loseone’sway迷路???????sbbemissing某人失踪了????????????themissingpeople失踪的人?????????loseone’slife/lives失去某人生命?????loseone’shome(s)失去某人家园anothertwoterribleearthquakes?????=twomoreterribleearthquakes????另外两场严重的地震?????????????another?twodays=twomoredays?????另外两天?????????????????????another+可数单数???“另外的”?????otherstudents=others?别的,其他的serious-moreserious-themostserious?严重的-更严重的-最严重的????????????同样变化的词:terrible/beautiful/dangerous/important?morethan=over超过,多于asksbforhelp=turntosb向某人求助talkto对某人讲talkwith交谈?????????talkabout谈论thewaytodosth做某事的方式thenumberof。。的数量,谓语用单数anumberof大量的,谓语用复数Thenumberoftheclassis40.????这个班级的学生数量是40?Anumberofstudentsaresinging.???大量的学生正在唱歌hearabout/of(doing)sth??听说(做)某事数字的用法hundred百/thousand千/million百万/billion十亿????????????????????????前面有数字+以上词单数?????????????fivehundred???????????????????????以上词复数+of“数以。。计的”??????hundredsof数以百计/成百上千的?thousandsof成千上万的protect?sb/oneself?from(doing)sth????保护某人/自己不受侵害Themostimportantthingistostaycalm.最重要的事情就是保持冷静(不定式表目的)Don’tworry=Don’tbeworried.不要担心worryabout=beworriedabout担心。。something/anythingelse别的一些事情(something肯定句中anything否定,疑问句)takealift做电梯inthemiddleof在。。中间keepsbsafe保持安全canbe会是remembertodo记得要做的事forgettodo忘记要做的事stay/keep/getawayfrom远离?trytodosth尽力做某事be(very)carefulofsth???要(非常)小心做某事therewillbe=thereis/aregoingtobe???将要有danger??n危险—dangerous?adj?危险的indanger处于危险中sth/sbisdangerous某人是危险的call119forhelp打119求助turnoffthegas关闭煤气at2;28intheafternoon,onMay12,2008在点钟前用at,在具体某天前加onwiththehelpofthewholenation???????在全国的帮助下withthehelpof=withone’shelp???????在某人的帮助下returntonormallife返回正常的生活?beableto=can能够????????????????beableto有多种形式,can只有两种??willbeableto将能够??????????????am/is/are/was/wereableto?????????=can/could?overagain再一次Unit4Topic3Makesb/sth+n/adj/V原“使得。。”dosomeshopping=goshoppingOntheInternet=online在网上alittlecheaper便宜一点whatelse别的什么。。Else放在特殊疑问词或不定代词之后Andsoon等等facetoface面对面findouttheinformationontheInternet在网上找出信息Talkwitheachother彼此谈话comeintobeing形成(常用came)Start/begintodo/doingsth开始做某事Inthe1960s在二十世纪六十年代makeitintouse使它投入使用Besuretoso将来一定做某事besureof..对。。。有把握besurethat确定benotsureif/whether不确定是否。。Moreandmoreimportanttous对我们越来越重要AnewphotoofMars火星的一张新照片Whatdid/doesitlooklike?它是什么样的Whatisitlike?他什么样Whatdoesislike?它喜欢什么Changethelife/world改变生活/世界change。。Into转换成。Changeforthebetter变得更好了Makefriendswithsb和某人交朋友By+名词/Ving“通过某种方式”chatonline上网聊天Spend。。。Onspend。。。(in)doing花费时间做某事Useitcarefully/safely仔细/认真的使用它usesthtodosth=usesthfordoingsth使用某物做某事sthbeusedtodo=sthbeusedfordoing某物被用来做某事usedtodo--didn’tusetodo---Did...usetodo过去常常be/getusedtodoingsth习惯于Atthesametime同时atthattime在那时It’spossibletodosth做某事是可能的as...aspossible尽可能assoon/quickly/fastaspossibleIt’s+adj+forsbtodosth“最某人来讲做某事是。。的”Lookupnewwords查新单词Bedifferentfrom和。。不同bethesameas和。。。一样besimilarto和。。。相似 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