新目标九年级英语Unit13SectionB(3a-SelfCheck)课件.ppt

新目标九年级英语Unit13SectionB(3a-SelfCheck)课件.ppt

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1SectionB（3a-Selfcheck）21.1.停止乘小汽车停止乘小汽车2.2.回收纸回收纸3.3.用纸巾用纸巾4.4.好好利用好好利用5.5.用垃圾建造房子用垃圾建造房子6.6.倒置倒置7.7.经营小生意经营小生意stopridingincarsrecyclepaperusepapernapkinsputtogoodusebuildahouseoutofrubbishturnupsidedownsetupasmallbusiness388.回回复复,归归还还99.旧旧玻玻璃璃瓶瓶1100.拆拆下下1111.一一个个有有创创意意的的大大脑脑1122.开开一一个个小小店店1133.更更受受欢欢迎迎的的作作品品1144.给给他他人人带带来来欢欢乐乐bringbackoldglassbottlespulldownacreativemindopenasmallshopmorepopularworksbringhappinesstoothers4Turnoffthelightswhenweleavearoom.Takeourownbagswhenshopping.Rideabike.Recyclepaper.Dontusepapernapkins.Whatshouldwedotosavetheearth?

5Theyshouldclosedownthefactoriesthatputwasteintotheriver.Setupalotofdustbinsonthestreet.Stoppeoplefromusingwoodenchopsticks,plasticbowlsandbags.Organizepeopletocleanupthestreetsandrivers.Whatshouldgovernmentsdotosavetheearth?

Lookatthesestepsofmakingabasketbyusingtheplasticbottle,andthentrytomakeonebyyourself.678v.n.n.adj.pollutefameactwoodprotectscienceinspirehealthbuildsouthcreateharm1Writedifferentformsofthewords.Thenaddmoretoeachgroup.pollutionactionprotectioninspirationbuildingcreationfamouswoodenscientifichealthysoutherncareful9adj.n.adj.adv.differentslowimportantwidesuddenrealdifferenceimportanceslowlywidelysuddenlyreally102Macheachstatementwiththegrammarstructure.StatementGrammarTheriverusedtobesoclean.PresentprogressiveWehaveseenmanychangesintheenvironment.ModalverbsPeopleshouldtakepublictransportationmore.PassivevoiceTheriverispollutedbyfactories.usedtoTheairpollutionisgettingworseandworse.Presentperfecthttp:

/113Writewaystocutdownonthesekindsofpollution.Kindsofpollutionwaystocutdownwaterpollutionlandpollutionaskfactoriesnottothrowwasteintotheriver;remindpeoplenottolitterensurethatfactoriesthrowawayindustrialwasteinaresponsibleway;trynottouseplasticbagswhenshopping12Kindsofpollutionwaystocutdownnoisepollutionairpollutionbuildairportawayfromplaceswherepeopleliveencouragepeopletousepublictransportationinsteadofdriving;reducethenumberoffactoriesthatburncoalThinkabouttheenvironmentinyourtown/cityandcompletethechartbelow.Whichpartsofthetown/cityhaveaniceenvironment?

Whyaretheynice？

Whichpartsneedtobeimproved?

Why？

3a1314GoodenvironmentWhy？

BadenvironmentWhy？

parkriverstreetsstreetsrestaurantairtheairiscleansomanytreescleanandtidyalotofrubbishsomanycarssomanyfactoriesWritealettertothecitymayorabouttheproblemandyoursuggestions.Whataretheproblems?

Wherearethey?

Whatorwhoiscausingtheseproblems?

Inyourletter,describetheenvironmentalproblemsinyourtown/city.3b1516Then,givesuggestionsorpossiblewaystosolvetheproblems.IthinkthatWeshould/couldIsuggest17本次写作内容是一封书信本次写作内容是一封书信,信中首先信中首先要介绍你所在城市存在有哪些环境问题要介绍你所在城市存在有哪些环境问题,是谁造成的这些问题是谁造成的这些问题,然后提出解决这然后提出解决这些环境问题的方法和措施些环境问题的方法和措施,可以结合可以结合33中中列举的问题和前面学过的解决办法来完列举的问题和前面学过的解决办法来完成这封信。

成这封信。

18DearSir/Madam,Environmentalproblemsarebecomingmoreandmoreseriousallovertheworld.Withthedevelopmentofthesociety,therearetoomanycarsonthestreetsinyourcity.Carshavemadetheairunhealthyforpeopletobreathe.Black19smokeandpoisonousgasaregivenoffbyfactories.Factoriesalsoputwasteintotheriver.Andwhereverwego,wecanfindrubbish.Nowmoreandmorepeoplehaverealizedtheseproblems.Ithinkthatgovernmentsshouldclosedownthefactoriesanddeveloplawstostoppeoplefromdrivingcarseveryday.Isuggest20everyoneinthistownshouldhelptocleanuptheriverandthestreets.Weshouldcalloneveryoneinthetowntothrowrubbishinthedustbins.Ihopetheproblemwillbesolvedinthenearfutureandourhomewillbecomebetterandbetter.Yoursfaithfully,Jenny21互动课堂互动课堂（探究与合作）探究点探究点11：

构词法构词法根据括号里的汉语意思写出单词根据括号里的汉语意思写出单词,并体会这并体会这些单词的构成方法。

些单词的构成方法。

1.Doyouhavea_（报纸报纸）?

2.The_（细心的细心的）studentmadea_（粗心的粗心的）mistake.3.Please_（浇水浇水）thetreewithsome_（水水）.）.newspapercarefulcarelesswaterwater22英语中的常见构词法有英语中的常见构词法有_、_、和和_。

合成法：

由两个或两个以上的词合成一个新词合成法：

由两个或两个以上的词合成一个新词,这这种构词法叫作合成法。

合成法可以构成名词、形种构词法叫作合成法。

合成法可以构成名词、形容词、动词、数词、介词等。

容词、动词、数词、介词等。

如：

如：

classroom（名词名词+名词名词），blackboard（形容词形容词+名词名词），worldwide（名词名词+形容词形容词）,good-looking（形形容词容词+现在分词现在分词）,overcome（副词副词+动词动词），fifty-four（数词数词+数词数词）,everything，somebody（不定代不定代词词+名词名词）等。

等。

合成合成转化转化派生派生23

（2）派生法：

在一个单词前面或后面加上一个派生法：

在一个单词前面或后面加上一个词缀构成新词，这种构词法叫做派生法。

加词缀构成新词，这种构词法叫做派生法。

加在单词前的词缀叫在单词前的词缀叫_,加在单词后的加在单词后的词缀叫词缀叫_。

常见的常见的前缀前缀：

un-（不不,非非）unable,unimportant,untruedis-（-（不不,非非）discover,disorder,discoloredbi-（两个、双边的两个、双边的）bicycleinter-（相互相互）Internet,international,interview前缀前缀后缀后缀24re-（又又,再再,重新重新）rewrite,retell,reviewtele-（远距离传输远距离传输,电视电视）telephone,television常见的常见的名词后缀名词后缀：

-er/or（人人）teacher,writer,foreigner,visitor-ist（人人）artist,scientist,tourist,terrorist-ese（民族民族,语言语言）Chinese,Japanese-tion（动作动作,状态