Unit7单词讲解课件人教版英语八年级下册

Unit7What'sthehighestmountainintheworld?形容词和副词的比较级和最高级形容词用法：A作定语

Sheisabeautiful

girl.B作表语

Theroomisbig.C作补足语

Wemustkeeptheroomclean.

D修饰不定代词放其后Ihavesomethingimportanttotellyou.副词用法A作状语修饰动词Wemuststudyhard.B修饰形容词Heisreally

busy.C修饰其他副词Heworksveryhard.D修饰整个句子

Luckily,

Igot100pointsthisterm.

形容词和副词的级别三级

原级

比较级

最高级形容词

talltallerthetallest副词hardharderthehardest1．规则变化1)一般在词尾加­er和­esttall—_______—________long—_______—________2)以不发音字母e结尾的加­r和­stfine—_______—________late—_______—________tallertallestlongerlongestfinerlaterfinestlatest

形容词和副词的级别

三级

原级

比较级

最高级3)以重读闭音节结尾且末尾只有一个辅音字母时，须双写这个辅音字母，再加­er和­estbig—_______—________thin—_______—________4)

以“辅音字母

+

y”结尾的双音节词，先把“y”改为“i”再加-er,-esteasy—______—______friendly—________—__________5)

多音节和部分双音节，在原级前加more,mostinteresting—_________________—__________________easierbiggestthinnerthinnestbiggereasiestfriendlierfriendliestmoreinterestingmostinteresting2.不规则变化

好坏

多少

远老good/wellbetterbestmany/muchmoremostlittlelessleastbad/badly/illworseworstfarfartherfurtherfarthestfurthestoldolderoldesteldereldest比较级句型：

1)“比较级＋than”表示“___________”

带thanChinaislargerthanItaly.2)“less＋原级＋than”表示“________”

降级比较Thebookislessinterestingthanthatone.比…更…不如…3)“倍数＋比较级＋than”表示“…是…的几倍…”Thisboxisthreetimesbiggerthanthatone.4)“倍数＋as原级as…”表示“和…的几倍一样…”Thisboxistwice

asbigasthatone.

这个箱子是那个的两倍大。5)“倍数+the量词+of…Thebuildingisthreetimestheheightofthatone.6)比较级＋and＋比较级”表示“__________”strongerandstronger

moreandmoreinteresting7)“the＋比较级…，the＋比较级…”表示“越…就越…

”Themore,thebetter.多多益善。越来越…8)“比较级＋thananyother＋单数(包括主语)ChinaislargerthananyothercountryinAsia.比较级+thanany+单数(不包括主语)ShanghaiislargerthananycityinJapan.thananyother+单数=thantheother+复数9)“the＋比较级＋ofthetwo”表示“两者中比较…的”。Theappleisthebiggerofthetwo.10)同级比较句型“as＋原级＋as”意为“__________”，其否定形式可用“notas/so＋原级＋as”表示，意为“________”。如：Iamasthinasmymother.我和我妈妈一样瘦。Theweatherhereisnotas/sohotasthatinWuhan.这里的天气不如武汉热。与…一样不及…※※※比较级前的修饰词有：much、far、alot、even、still、alittle、abit等，而原级用very、so、too、quite等修饰。※※※Ourcityismuchmorebeautifulthanyours.I’malittletallerthanyou.Heisevenlaterthanbefore.Thebookisveryboring.I’mtoolate.最高级的用法：通常前面有the1.the+最高级+带of或in的范围短语Sheistheyoungestofall.2.…oneofthe+最高级+名词复数LuXunisoneofthegreatestwritersinChina.3.选择疑问句Whoisthestrongest,Tom,JackorBill?4.the＋最高级＋定语从句It'sthemostinterestinggiftthatIhaveeverreceived.5.the+序数词+最高级TheChangjiangRiveris

thefirstlongestriverinourcountry.6.比较级的否定表示最高级Noonecanstudybetterthanhiminmyclass.Word:1.squaren正方形平方

squaremeter/kilometerThebuildingis50meters.Howmuchisitforeachsquaremeter?2.metern米公尺3.deepadj深的deeplyThewellis30metersdeep.Iwasmoveddeeplybyhim.4.desertn沙漠Nobodywantstoliveinthedesert.5.populationn人口人口数量Howlargeisthepopulationofyourcity?What'sthepopulationofthecity?Thepopulationoftheworldisgettinglargerandlarger.对人口数量进行提问6.Asian亚洲Asian亚洲人ChinaisthelargestcountryinAsia.7.feelfree可以随便做某事Pleasefeelfreetoaskquestions.feelfreetodosth8.tourv＆n旅游tourist游客IwanttotourtheGreatWallthissummer.Therearemanytouristshereeveryyear.9.walln墙inthewall镶在墙里onthewall挂在墙体表面beamazedat对…感到惊奇Hetoldmeanamazingstory.10.amazingadj惊奇的修饰物

amazedadj惊奇的修饰人

moreancientthemostancientThisbuildingismoreancientthanthatone.11.ancientadj古老的

TheancientChinesebuilttheGreatWall.Chinaisanancientcountry.protecttheinvironmentprotect…from…避免…受…伤害Inwinterpeopleusuallykeepflowersintheirhousestoprotectthemfromthecold.12.protectv保护protectionn保护Howwideistheriver?13.wideadj宽的—narrow窄的asfarasIsee据我所见AsfarasIknow，hewasn'tathomeyesterday.14.asfarasIknow据我所知Thestarisman-made.15.man-made人造的Thisisagreatachievement.16.achievementn成就achievev完成TheHimalayasrunalongthesouthwesternpartofChina.喜马拉雅山脉绵延到中国的西南部。17.southwesternadj西南的18.thickadj厚的sweaterfog

thinadj薄的clothesiceHiswritingsincludenovels.Ihavetwopens,includingthisblueone.19.includev包括includingprep包括It'shardtocutoffthefreezingmeat.It'sfreezingtoday.20.freezingadj冰冻的极冷的

freezev冰冻21.conditionn条件状况ina…condition在…条件下

Weshouldn'tgiveupinanycondition.22.takein吸入吞入takeplacetakeone'splacetakeoffTakinginthefreshairisdifficultonahighmountain.23.successn成功succeedv成功

successfuladj成功successfullyadv成功地besuccdssfulindoingsthsucceedindoingsth成功做某事havesuccessindoingsthFailureisthemotherofsuccess.Hewassuccessfulingettingtothetop.Hesucceededingettingtothetop.Hegottothetopofthehillsuccessfully.｝24.challengev＆n挑战不可数changeoneself挑战自己

Helookedatmewithenoughchallenge.Tomchallengesmetoplaychess.25.inthefaceof面对Weshouldchallengeourselvesinthefaceofdifficulties.26.forcen力量theforceof…的力量Heusedmuchforce.Imakeitwithgreatforce.27.naturen自然naturaladj自然的Ilikegoingoutinnature.28.eventhough=evenif即使引导让步状语从句Hewenttoschooleventhoughitsnowed.29.ocean=sea大海海洋thePacificOcean太平洋Itlookslikeanoceanofflowers30.cm=centimeter厘米Theboy180cmtall.31.weighv称重是…weight重量

Thetelephantweighsmanytimesmorethanthepanda.32.birthn出生atbirth出生时givebirthto生产分娩Hewasfourkiloswhenhewasborn.atbirth.33.upto到达（数量或程度）Thestudentsofourschoolisupto800.Thedogcanliveupto30years34.adultadj成年的n成人Theyhaveanadultson.35.bamboon竹子Thepandalikeseatingbamboo.36.endangeredadj濒危的beendangered=beingreatdangerWeshouldprotecttheendangeredanimals.37.researchn＆v研究调查Theresearchshowedthatnobodylikesplayingsports.makearesearchon…做…的研究38.keepern饲养员IwanttobeakeeperwhenIgrowup.39.awakeadj醒着的

wakev叫醒

beawake是醒着的wakesbup叫醒Heisstillawake.40.excitementn激动兴奋exciting修饰物excited修饰人withexcitement带有兴奋的…Theyjumpedupanddownbecauseoftheexcitement.Thegirlrunovertohermotherwithexcitement.41.walkinto走路时撞到Thepigwalksintoatree.42.fallover绊倒向前倾倒Mybrotherfelloverandhurthislegs43.orso大约Ilivehereorso30years.44.illness疾病ill生病的Hedidn'tgotoschoolbecausehewasill.becauseofhisillness.45.wildadj野生的Weshouldprotectthewildanimals.46.governmentn政府Wedon'tdependonthegovernment.47.whalen鲸Whalesliveinthesea.48.oil油不可数Oilandwaterdon'tmix.49.protectionn保护protectv保护Weshouldmakerulesonwhaleprotection.50.hugeadj巨大的极多的

large占地面积big物体Thewhaleisakindofhugeanimal.Howtoprotectourenvironment?

Asstudents,weshouldtryourbesttoprotectourenvironment.

Nowthepollutionismoreandmoreserious.Toomanycarsareontheroad.Sowe