Unit+7复习课件 人教版八年级英语下册

Unit7What'sthehighestmountainintheworld?⭐⭐1.规则变化:

①单音节词和少数双音节词一般在词尾后加-er

构成比较级或-est构成最高级.②以不发音的字母e结尾的单词在词尾直接加r或st.③以“辅音字母＋y”结尾的词，变y为i，再加er或est.④在重读闭音节中，末尾只有一个辅音字母，双写这个辅音字母，再加er或est.⑤多音节词和部分双音节词在词前加more或most.⭐⭐2.不规则变化：原级比较级最高级good/wellbad/illlittlemany/muchfarold拓：Farther和Further技巧:当你实际测量或知道两个实体之间的距离时，使用“Farther”eg:Becauseofthefog,wearen'tabletoseefartherthan30meters.否则你可以使用“Further”。eg:furtherstudy进修；继续深造换句话说，如果没有提到或暗示实际距离，可以使用“Further”，它也可以用来表示附加的或者更进一步的。Haveatry写出下列词的比较级和最高级1、fast，easy，fat，

popular，hungry，busy2、happy，interesting，lazy，clever，heavy3、careful，early,thin，good，hot，few，little⭐⭐⭐二、原级、比较级和最高级的用法：1.原级的用法：肯定句：

as+原级+as+…eg:Youareasbeautifulasme.否定句：notas/so+原级+as+…eg:博尔特can'trunso/asfastasme.2.比较级的用法：①“比较级+than+…

”

eg:Heismorehandsomethanyou.②“Which/Whois+比较级…，AorB?”eg:whoismorehandsome?Youorhim?③“比较级＋and＋比较级”表示“越来越…”eg:xxxbecomemoreandmorebeautiful.④“the+比较级…,the+比较级…”“越…就越…”eg:Theharderwestudy,thebettergradeswewillget.⑤表示不及另一方时，用“less+原级+than…”eg:Ihavelessmoneythan马云.⑥the+比较级+ofthetwoeg:XXXisthetallerofyoutwo.能修饰原级的词有：能修饰比较级的词有：

(表示“程度”)注意：very,so,as,too,quite,moremuch,alittle,alot,abit,even,stillshowtime1.Ithinkthestoryisnotso___asthatone.A.interestingB.interestedC.moreinterestingD.mostinteresting2.Whenwespeaktopeople,weshouldbe_____.A.aspoliteaspossibleB.aspoliteaspossiblyC.aspolitelyaspossibleD.aspolitelyaspossiblyAA3.Ithinkscienceis______thanJapanese.A.muchimportantB.importantC.muchmoreimportantD.moremuchimportant4.Thesechildrenare__thisyearthantheywerelastyear.A.moretallB.moretallerC.verytallerD.muchtallerCD⭐⭐⭐3.最高级的用法：①

“the+最高级+in/of(范围）…

”

eg:ShangHisthebiggestcityinChina.②“Which/Whois+the最高级…？”eg:WhichisthebiggestcityinChina?③“oneofthe+最高级+名词复数in/of(围）…

”eg:ShangHisoneofthemostbiggestcitiesinChina.④“the+序数词+最高级…？”“第几最…”eg:DongGisthesecondbiggestcityinChina.

当最高级前面有物主代词或名词所有格时，不加定冠词the。注意：例如：TomisLucy’sbestfriend.Tuesdayisherbusiestday.1.Beijingisoneof________inChina.A.thelargestcityB.thelargecitiesC.thelargercitiesD.thelargestcities2.Amongthefourgirls，Maryisthesecond____．A．tallB．tallerC．tallestD．thetallestHaveatryDC1.Mr.Smithis_________maninthisoffice.(rich)2.Winteris_________seasonoftheyears.(cold)3.Thisradioisnotso________asthatone.(cheap)4.Itismuch_______todaythanyesterday.(hot)5.Sheisalittle________thanherclassmates.(careful)6.________peoplecametothemeetingthanlasttime.(many)7.Whichbookis________,thisoneorthatone?(easy)HaveatryLanguagePoints1.据我所知asfarasIknow=sofarasIknow

①据我所知，他们今天不来了。SofarasIknow，they’renotcomingtoday.2.放弃某物/做某事①Hegaveup

（learn）athirdlanguageafterhegotthejob.②Thedoctoradvisedmetogiveup

（smoke）③Hehastogiveuphis

（study）becauseofillness.giveupsth/doingsth常考短语做某事成功冒着生命危险面对困难一个大挑战实现我们的梦想许多次为..准备在未来保护…不受…succeedindoingsth.riskone’slifeinthefaceofdifficultiesabigchallengeachieveourdreamsmanytimespreparefor…inthefutureprotect…from(doingsth.)ExtraPoint1、population◆population意为“人口”时，它在句中作主语时，谓语动词总是用单数形式。也可用复数,侧重个体.eg:Halftheworld’spopulationdoesn’tgetenoughtoeat.Onethirdofthepopulationhereareworkers.(指不同的地区、时期、民族的人口时,可用复数形式)

◆当表示人口“多”或“少”时，常用形容词large，big或small修饰population.eg:Thecountryhasa