新目標(biāo)九年級英語Unit13SectionB(3a-SelfCheck)課件

停止乘小汽車2.回收紙3.用紙巾4.好好利用5.用垃圾建造房子6.倒置7.經(jīng)營小生意Revisionstopridingincarsrecyclepaperusepapernapkinsputtogoodusebuildahouseoutofrubbishturnupsidedownsetupasmallbusiness

第一頁1第二頁，共32頁。8.回復(fù),歸還9.舊玻璃瓶10.拆下11.一個有創(chuàng)意的大腦12.開一個小店13.更受歡迎的作品14.給他人帶來歡樂bringbackoldglassbottlespulldownacreativemindopenasmallshopmorepopularworks

bringhappinesstoothers第二頁2第三頁，共32頁?！鬞urnoffthelightswhenweleavearoom.◆Takeourownbagswhenshopping.◆Rideabike.◆Recyclepaper.◆Don’tusepapernapkins.WarmingupWhatshouldwedotosavetheearth?第三頁3第四頁，共32頁?！?/p>

Theyshouldclosedownthefactoriesthatputwasteintotheriver.◆

Setupalotofdustbinsonthestreet.◆

Stoppeoplefromusingwoodenchopsticks,plasticbowlsandbags.◆

Organizepeopletocleanupthestreetsandrivers.Whatshouldgovernmentsdotosavetheearth?第四頁4第五頁，共32頁。Look

atthesestepsofmakingabasketbyusingtheplasticbottle,andthentrytomakeonebyyourself.第五頁5第六頁，共32頁。SelfCheck第六頁6第七頁，共32頁。v.—n.n.—adj.pollute—fame—act—wood—protect—science—inspire—health—build—south—create—harm—1Writedifferentformsofthewords.Thenaddmoretoeachgroup.

pollutionactionprotectioninspirationbuildingcreationfamouswoodenscientifichealthysoutherncareful第七頁7第八頁，共32頁。adj.—n.adj.—adv.different—slow—important—wide—sudden—real—differenceimportanceslowlywidelysuddenlyreally第八頁8第九頁，共32頁。2Macheachstatementwiththegrammarstructure.

StatementGrammarTheriverusedtobesoclean.PresentprogressiveWehaveseenmanychangesintheenvironment.ModalverbsPeopleshouldtakepublictransportationmore.PassivevoiceTheriverispollutedbyfactories.usedtoTheairpollutionisgettingworseandworse.Presentperfect

第九頁9第十頁，共32頁。3Writewaystocutdownonthesekindsofpollution.Kindsofpollutionwaystocutdownwaterpollutionlandpollutionaskfactoriesnottothrowwasteintotheriver;remindpeoplenottolitterensurethatfactoriesthrowawayindustrialwasteinaresponsibleway;trynottouseplasticbagswhenshopping第十頁10第十一頁，共32頁。Kindsofpollutionwaystocutdownnoisepollutionairpollutionbuildairportawayfromplaceswherepeopleliveencouragepeopletousepublictransportationinsteadofdriving;reducethenumberoffactoriesthatburncoal

第十一頁11第十二頁，共32頁。Thinkabouttheenvironmentinyourtown/cityandcompletethechartbelow.◆

Whichpartsofthetown/cityhaveaniceenvironment?Whyaretheynice？◆

Whichpartsneedtobeimproved?Why？

Pairwork3aPairwork第十二頁12第十三頁，共32頁。GoodenvironmentWhy？BadenvironmentWhy？parkriverstreets

streetsrestaurantairtheairiscleansomanytreescleanandtidyalotofrubbishsomanycarssomanyfactories第十三頁13第十四頁，共32頁。Writealettertothecitymayorabouttheproblemandyoursuggestions.

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Whataretheproblems?

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Wherearethey?

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Whatorwhoiscausingtheseproblems?WritingInyourletter,describetheenvironmentalproblemsinyourtown/city.3b第十四頁14第十五頁，共32頁。Then,givesuggestionsorpossiblewaystosolvetheproblems.

Ithinkthat…Weshould/could…Isuggest…第十五頁15第十六頁，共32頁。

本次寫作內(nèi)容是一封書信,信中首先要介紹你所在城市存在有哪些環(huán)境問題,是誰造成的這些問題,然后提出解決這些環(huán)境問題的方法和措施,可以結(jié)合3中列舉的問題和前面學(xué)過的解決辦法來完成這封信。寫作指導(dǎo)第十六頁16第十七頁，共32頁。DearSir/Madam,Environmentalproblemsarebecomingmoreandmoreseriousallovertheworld.Withthedevelopmentofthesociety,therearetoomanycarsonthestreetsinyourcity.Carshavemadetheairunhealthyforpeopletobreathe.BlackSamplewriting第十七頁17第十八頁，共32頁。smokeandpoisonousgasaregivenoffbyfactories.Factoriesalsoputwasteintotheriver.Andwhereverwego,wecanfindrubbish.

Nowmoreandmorepeoplehaverealizedtheseproblems.Ithinkthatgovernmentsshouldclosedownthefactoriesanddeveloplawstostoppeoplefromdrivingcarseveryday.Isuggest第十八頁18第十九頁，共32頁。everyoneinthistownshouldhelptocleanuptheriverandthestreets.Weshouldcalloneveryoneinthetowntothrowrubbishinthedustbins.Ihopetheproblemwillbesolvedinthenearfutureandourhomewillbecomebetterandbetter.Yoursfaithfully,Jenny第十九頁19第二十頁，共32頁。互動課堂(探究與合作)探究點(diǎn)1：

構(gòu)詞法根據(jù)括號里的漢語意思寫出單詞,并體會這些單詞的構(gòu)成方法。

Doyouhavea______________(報(bào)紙)?2.The____________(細(xì)心的)studentmadea___________(粗心的)mistake.3.Please___________(澆水)thetreewithsome___________(水).newspapercarefulcarelesswaterwater第二十頁20第二十一頁，共32頁。英語中的常見構(gòu)詞法有__________、__________、和________。合成法：由兩個或兩個以上的詞合成一個新詞,這種構(gòu)詞法叫作合成法。合成法可以構(gòu)成名詞、形容詞、動詞、數(shù)詞、介詞等。如：classroom(名詞+名詞)，blackboard(形容詞+名詞)，worldwide(名詞+形容詞),good-looking(形容詞+現(xiàn)在分詞),overcome(副詞+動詞)，fifty-four(數(shù)詞+數(shù)詞),everything，somebody(不定代詞+名詞)等。合成轉(zhuǎn)化派生第二十一頁21第二十二頁，共32頁。(2)

派生法：在一個單詞前面或后面加上一個詞綴構(gòu)成新詞，這種構(gòu)詞法叫做派生法。加在單詞前的詞綴叫_________,加在單詞后的詞綴叫__________。①常見的前綴：

un-(不,非)unable,unimportant,untrue

dis-(不,非)discover,disorder,discoloredbi-(兩個、雙邊的)bicycle

inter-(相互)Internet,international,interview前綴后綴第二十二頁22第二十三頁，共32頁。re-(又,再,重新)rewrite,retell,reviewtele-(遠(yuǎn)距離傳輸,電視)telephone,television②常見的名詞后綴：-er/or(人)teacher,writer,foreigner,visitor-ist(人)artist,scientist,tourist,terrorist-ese(民族,語言)Chinese,Japanese-tion(動作,狀態(tài))invitation，attraction，

population第二十三頁23第二十四頁，共32頁。③常見的形容詞后綴:-ful(充滿)careful,colorful,useful,helpful-y(有……的)cloudy,sunny,windy,lucky,funny-al(有……特點(diǎn)的)traditional,international，natural-able(能夠)comfortable,unforgettable-less(沒有，無)homeless,helpless,careless第二十四頁24第二十五頁，共32頁。(3)轉(zhuǎn)化法：一個單詞由一種詞類轉(zhuǎn)換為另一種詞類，這種構(gòu)詞法叫轉(zhuǎn)換法。單詞轉(zhuǎn)化后的意義往往與之前的意義聯(lián)系密切。如：watern.水→

waterv.澆水

slowadj.慢的→slowv.放慢walkv.散步,走→walkn.散步第二十五頁25第二十六頁，共32頁?！就卣埂竣倏s寫和簡寫(也稱截?cái)喾ɑ蚩s略法)主要采取“截頭”、“去尾”或者“既截頭又去尾”的方法來生產(chǎn)新單詞。如：

telephone

→

phoneairplane→plane

laboratory→labmathematics→mathadvertisement→adexamination→examinfluenza→flu②另外，還有很多縮寫成是由各個單詞的首字母組成，如：CD,CCTV,kg,NBA,UFO,UN,ID,USA,WWF第二十六頁26第二十七頁，共32頁。互動課堂(探究與合作)探究點(diǎn)2：比較級的用法

讀下列句子,注意畫線部分的用法。

Heisgettingfatterandfatter.

他越來越胖了。2.Theflowersaremoreandmorebeautiful.

花兒越來越漂亮。3.Igotupearlierthanmybrothertoday.

我今天比我哥哥起得早。4.Thisroomis(twotimes)biggerthanthatone.

這個房間比那個房間大(三倍)。第二十七頁27第二十八頁，共32頁。5.Heruns(twotimes)fasterthanme.

他跑的速度比我快(兩倍)。6.Lookatthetwogirls.Mysisteristhetaller

ofthetwo.看那兩個女孩,我姐姐是她們中較高的那個。7.Theb