Chapter 3 Environment（通用2篇）

Chapter3Environment篇1

usingadjectivesteachingaims1.      getthestudentstocontinuetolearntheuseofadjections.2.      getthestudentstopractiseusingadjections.在上一单元，我们学习了形容词的三大功能（即：定语、表语和宾语补足语）和两个句型（即：it’s+形容词+(forsb)+todo…/主语+be+形容词+todo…）。我们还学习过形容词的其他用法，如：形容词的比较等级的用法。(注意：副词也有比较等级，副词的比较等级用法和形容词相同)形容词的比较等级是初中英语的重要语法项目，也是中考的热点问题。现在我们就形容词和副词的比较等级的常考知识点作复习和归纳。 i. 形容词的比较等级：大多数的形容词有三个等级：原级，比较级和最高级。原级即形容词的原形。比较级和最高级的变化，分规则变化和不规则变化两种。（1）      规则变化。单音节词和部分双音节词的变化如下表：

构成法

原级

比较级

最高级

一般加-er,est

long

cold

longer

colder

longest

ccoldest

以结尾的词，只加-r,-st

nice

large

nicer

larger

nicest

largest

以一个辅音字母结尾，前面的元音读短音时，要双写结尾的辅音字母，再加-er,-est

big

fat

bigger

fatter

biggest

fattest

以辅音字母加结尾的词，改y为i，再加-er,-esteasy

busy

easier

busier

easiest

busiest部分双音节词和多音节词，在前面加   或  来构成比较级和最高级：原级                 比较级              最高级slowly               moreslowly         mostslowlybeautiful             morebeautiful      mostbeautiful（2）     不规则变化如下表：原级比较级最高级good,wellbetterbestbad,illworseworstmany,muchmoremostlittlelessleastfarfarther,furtherfarthest,farthestoldolder,elderoldest,eldestii.形容词和副词比较等级的用法：（1）      表示两者之间的比较时，用“形容词比较级+than”句型。thesunisbiggerthantheearth.（2）     表示两者以上的比较时，用“the+形容词最高级（+名词）+of(in)…“的句型。mybrotheristhetallestinhisclass. (3)表示两者是同等程度，用“as+形容词原级/副词+as”句型,意思是“和……一样”。表示两者不同程度时，用“notso(as)+形容词原级/副词+as”的句型，意思是“不如……”.它可与比较级互换。thisbookasgoodasthatone.lipingisnotasoldasweifang.swimmingisnotasinterestingasfishing.=fishingismoreinterestingthanswimming.试分析下列练习：1.      mycoatis_________thanyours.a.expensive  b.moreexpensive  c.muchmoreexpensive  d.muchexpensive2.      shanghaiisoneof_________citiesinourcountry.a.large  b.larger  c.largest  d.thelargest3.      whichsubjectis__________,mathorenglish?a.easy  b.easier  c.easyer  d.easiest4.      ofallthestudentsinourclass,bettywrite_________.a.verycareful  b.themostcareful  c.themostcarefully  d.morecarefully5.      jackdoesn’tjumpso_________ashisbrother.a.high  b.higher  c.highest  d.morehigh6. itwas________coldyesterday.  a.terrible  b.terribly  moreterrible   d.mostterrible(4)常用的一些原级比较的结构还有：1.“asmany/muchas”意思为“同数量的……;一样多”。   hehasasmuchmoneyasjohn.   youcansellasmanynewspapersasi.2.“asmany/long/high…as+数字”表示“多达（长达、高达）……”.。   ihavelearnedenglishforaslongas15yeaars.   thebuildingcostsranuptoasmuchas20millionyuan.3.thesameas/differentfrom/like;当我们要表达“某一事物与另一事物相同时，用“aisthesameasb”句型。当我们要表达某一事物和另一事物不同时，用“aisdifferentfromb”句型。当我们要表达某一事物与另一事物相像时，用“aislikeb”句型。   mywatchisthesameasyours.   tom’scoatisdifferentfromnick’s.   mrwang’scarislikemyfather’s. 这三个结构中所使用的动词多为be,但有时也用look,sound,taste,seem等系动词。thatgirllookslikehermother.thissongsoundsdifferentfromtheoneilike.  thesameas也可分解为thesame……as,same后面通常跟age,kind,length,colour,height,size,amount等名词。有时thesame…as也可与as…as互换使用。     theruleristhesamelengthasthatone.=thisrulerisaslongasthatone.试完成下面的练习：1.      david和simon一样高。davidis____________________(tall).= 2.      david的体重不如simon.davidis_____________________(heavy).=3.      我的书不如你的书多。idon’thave__________ _________ _________asyou.4.      格林一家和怀特一家扔掉的垃圾一样多。thegreensthrowaway__________ _________ rubbish________thewhites.5.      这次事故中多大一百人丧生。__________ __________ __________100peoplewerekilledintheaccident.6.      一天的费用可高达500元。thecostofonedaycanbe________ __________ _________500yuan.7.      这两姐妹看上去一样。thetwosisters_________ __________ _________.8.      这条裙子与那一条不同。thisskirtis_________ _________ _________thatone.9.      听起来像个好主意。that__________ __________agoodidea.10.  两顶帽子一样。thetwohats_________ __________ __________.=11.  我和你年纪一样。iam__________ __________ _________ _________you.=近年来在中考出现的对形容词和副词的比较等级的考查举例如下：考点一：对比较级的考查1.      mikelooks_________thanpaul,buttheyarethesameage.a.youngest  b.theyoungest  c.younger  d.veryyoung形容词后面有than时，应该用形容词的比较级形式。应选c.2.      intheexam,themorecarefulyouare,____________mistakesyouwillmake.a.thefewer  b.thefewest  c.theless  d.theleast“the+比较级，the+比较级”是比较级的一个固定句型，表示“越……,就越……”。由此可排除b,d两项；又因为mistake是可数名词，不能用less修饰，所以选a.3.      iloveshenzhenbecauseitisbecoming___________________.a.moreandmorebeautiful    b.beautifulandbeautifulc.cleanandclean           d.moreandclean“比较级+and+比较级”也是比较级的一个固定句型，表示“越来越……”;如果是多音节的形容词，则用“moreandmore+形容词原形”所以选a.。考点二：考查比较级的修饰语4.      “pleasedon’tbeangrywithme,”saidamylaughingly.thismakemeeven_________.a.angry  b.angrier  c.angriest根据题干的逻辑结构和程度副词even的使用，应填形容词的比较级形式，所以选b。比较级可以被表示程度的副词或短语修饰，这些表示程度的修饰语主要有even,still,far,much,alot,abit,alittle,any等。考点三：对形容词最高级的考查5.      beijing,thecapitalofchina,isoneof__________citiesintheworld.a.thebiggest  b.bigger  c.muchbigger  d.big“be+oneofthe+形容词最高级+名词（复数）+范围”是最高级的一个固定句型，意为“……是最……之一”，所以选a.用所给词的正确形式填空：who’s_________(tall),kittyormary?thechangjiangriverisoneofthe_________(long)riversintheworld.thechinesepeoplehaveamuch_________(good)lifenow.

形容词和副词比较等级专练teachingaimgetthestudentstopractiseusingadjections.i.根据句子的意思，从括号中选择正确的内容填空，使句子完整，通顺：1. it’sverycoldtoday,butitseemstobe____________tomorrow.(colder,coldest)2.hehas_________homeworktodothanitoday.(much,more)3.myroomistwice_________thanmysister’s.(large,larger)4.thiscoatismuch_________thanthatone.(expensive,moreexpensive)5.chapter2is_________ofallthechaptersinthisbooks.6.sheis__________amongthegirls.(heavier,theheaviest)7.tomwroteas__________asken.(careful,carefully)ii.用括号中所给单词的适当形式填空：exerciseoneis__________(easy)thanexercisetwo.pleaselistentotheteacher__________(careful).idon’tthinkitisadifficultmathproblem.hecanworkitout(easy).shenzhenisoneof ____________(beautiful)citiesinourcountry.julyandaugustarethe_____________(hot)monthsinayear.heistootiredtogoany______________(far).whichjacketis_____________(expensive),theblueone,thegreenoneorthebrownone.readthispassageas____________(quick)asyoucan.thereis________________（little）milkinthisglassthaninthatone.jackdoesn’tjumpso__________(high)astom.iii.选择填空：whichpendoyoulike_________,theredoneortheblackone?a.good  b.better  c.gooder  d.besttomdraws_______.hedraws_________thanmikeandjohn.hedraws________amongthethreeboys.a.good,better,best  b.well,better,best  c.good,good,best  d.well,well,betterheis__________enoughtogotoschool.a.older  b.oldest  c.big  d.oldthatwasoneof__________momentsofthatyear.a.exciting  b.moreexciting  c.themostexciting  d.mostexcitinglook!heisrunning__________.a.fasterandfaster  b.fastandfast  c.fastestandfastest  d.fastlyandfastlydoyougetup_________yourparents?a.early  b.earlier  c.asearlyas  d.asearlierasdoyouspeakenglish____________yourparents?a.bestthan  b.wellthan  c.asgoodas  d.aswellaswhichis__________,achick,asheeporahorse?a.heavy  b.heavier  c.heaviest  d.theheaviestiv.完成下列句子：1.      thegirlisnow______________________(高得多)thanshewasayearago.2.      millionsofstarsareeven______________________(大和明亮)thanthesun.theylooksmallonlybecausetheyare_________________（远得多）away3.      chinais__________________(最大的国家之一)intheworld.4.      doesmarywrite______________________(一样认真)asbetty?5.      thiselephantis_________________(强壮),butthatelephantis___________(强壮一点)thanthisone.6.      doyouthinkchemistryis______________________(有趣)?7.      it’s___________(热)todaythanyesterday.8.      whenapieceoficeistakenintoawarmroom,itbecomes________________________(越来越小).9.      insummerit’s_____________________(凉爽)inbeijingthaninguangdong.10.  mybrother_________________________________(跳舞不如我妹妹好).11.  heis________________________(和我一样高),butheis______________________(比我瘦很多).12.  exerciseoneis______________________(难得多)thanexercisetwo.

Chapter3Environment篇2

chapter3environment

(periodⅱ)

date:march18th,

学科：英语    授课年级：八年级     

teachingmaterial:oxfordenglish8b

teachinggoals:

1. knowledgegoal

studentsareabletohaveadetailedunderstandingofthereadingtext.

2. abilitygoals

(1) knowabouttheeffectsofthegreenhouseeffectanddestructionofrainforests

(2) practicespeakingthroughthefourmaintopicsinthereadingtext

(3) learntoworkingroups

3. emotionalgoal

studentsraisetheirawarenessofprotectingtheenvironmentasgreenconsumers

importantpoints:

detailedunderstandingofthefourmaintopicsinthereadingtext

difficultpoints:

twoenvironmentalproblems(thegreenhouseeffect,destructionofrainforest)

teachingprocedures

step1 leading-in

1. singasong

2. watchthevideowaterworldandthenanswersomequestionsaboutthevideotoleadinthenewlesson.

step2 pre-reading

raisethetwoenvironmentalproblems

step3 while-reading

1. learnaboutthefirstenvironmentalproblem:thegreenhouseeffect;

 brainstorming:isgreenhouseeffectimportantorharmful?

 usethekeywordstotalkabouttheimportanceandharmfuleffectsofthegreenhouseeffect

2. learnaboutthesecondenvironmentalproblem:destructionofrainforests

 watchavideoandraisethetopic.

 asksomequestionsaboutthetopic

whatcantreesdoforus?

whatmayhappeniftreesarecutdown?

3. talkaboutthecausesoftheaboveenvironmentalproblem—badhabits

 freetalk:humanbeings’badhabitsofpollutingtheenvironment

 resultsofthebadhabits,raisethephrase-environmentallyfriendly

4. asurveyaboutthetext

 finishasurveyforminagroupoffourandtwostudentsreporttheresults

step4 post-reading

atask:finishaposteringroups

1.lookatthepicturesofbeautifulscenicspotsinshenzhen.

2.findoutdifferentkindsofpollutioninshenzhen

(1) asgreenconsumers,howcanwemakeshenzhenmorebeautiful?

(2) students’presentation.

step5 homework

1. listentothetapeandreadthearticle,andtrytoimitatethetape.

2. makeaposter‘howtomakeshenzhenmorebeautiful’individually.

3. finishpartc&donpage32&33inthetextbook.