仁愛(ài)九年級(jí)Unit2Topic2SectionB(公開課)

Unit2Savingthe

EarthTopic2Alltheseproblemsareveryserious.SectionB1.—Wouldyouliketohave_____?—No,thankyou.I’vehadenough.A.anythingmoreB.somethingmoreC.moreanything D.moresomething2.Thedriverwasbadlyhurt______ofthetrafficaccident.A.ataresult B.intheresultC.withtheresult D.asaresult

課前小測(cè)：?jiǎn)雾?xiàng)選擇3.—Is_____readyforthetrip?—No,wehaven’tgotacamera.A.nothing B.everythingC.something D.anything4.______ofuslikesrunning,butwealllikeswimming.A.None B.Noone C.All D.Everyone5.XiaoLialwayshelps_______.A. other B.theother C.others D.another1.—Wouldyouliketohave_____?—No,thankyou.I’vehadenough.A.anythingmoreB.somethingmoreC.moreanything D.moresomething2.Thedriverwasbadlyhurt______ofthetrafficaccident.A.ataresult B.intheresultC.withtheresult D.asaresult

BD課前小測(cè)：?jiǎn)雾?xiàng)選擇3.—Is_____readyforthetrip?—No,wehaven’tgotacamera.A.nothing B.everythingC.something D.anything4.______ofuslikesrunning,butwealllikeswimming.A.None B.Noone C.All D.Everyone5.XiaoLialwayshelps_______.A. other B.theother C.others D.another

BACUnit2Savingthe

EarthTopic2Alltheseproblemsareveryserious.SectionB

教學(xué)目標(biāo)：

談?wù)撋趾退Y源的重要性，培養(yǎng)學(xué)生的環(huán)保意識(shí)。重點(diǎn)、難點(diǎn)：

1、熟悉1a的對(duì)話內(nèi)容

2、會(huì)運(yùn)用下列詞組或句型：（1）cutdown（2）although（3）osth.（4）stopsb./sth.(from)doingsth.=preventsb./sth.(from)doingsth.（5）remember/forgettodosth.（6）turnon、turnoff、turnup、turndown

Lookatthepictures.Whatbadweather!Thewindisblowingstronglywithlotsofsand.It’sasandstorm.沙塵暴Doyouknowwhatcausesthesesandstorms?Finish1c.

Groupwork

Numberthepicturesandtalkaboutthemingroups.()()()()()()Doyouknowhowsandstormscomeintobeing?

415362形成

Cuttingdowntoomanytreescancausesandstorms.Buthowcanthesetreesaffecttheweather?Listento1aandfillintheblank.Whatistheweatherlike?It’s_____.Thewindisblowingstrongly.2.Whatcausesthesesandstorms?Peoplehave___________toomanytrees.3.

Howcantreesaffecttheweather?

(1)Treescan____thewind_____blowingtheearthaway.(2)Alotofwatercan________byforests.(3)Treescanpreventthewaterfrom______theearth____.

badcutdownstopfrombesavedwashing

away

Languagepoints1、cutdown砍倒e.g.(1)別砍樹木。

Don’tcutdownanytrees.(2)砍倒樹木對(duì)人類和動(dòng)植物有害。

Cuttingdowntreesisharmfultohumanbeings,animalsandplants.cut的現(xiàn)在分詞為cutting,

過(guò)去式和過(guò)去分詞均為cut。注意:

2、

osth.

把……變成……e.g.我想把這些美元兌換成人民幣。

I’dliketochangetheseU.S.dollarsintoRMB.

3、stopsb./sth.(from)doingsth.=preventsb./sth.(from)doingsth.

阻止某人/某物做某事(from可省略)e.g.(1)我們應(yīng)該阻止他抽煙。

Weshouldstophimfromsmoking.

(2)我的父母阻止我在河里游泳。

Myparentspreventmefromswimmingintheriver. 4、canbesaved

此為含有情態(tài)動(dòng)詞的被動(dòng)語(yǔ)態(tài)其結(jié)構(gòu)為：情態(tài)動(dòng)詞+be+P.P.

can/may/must…

可以被貯存e.g.教室必須每天（被）打掃。Theclassroommustbecleaned

everyday.5、

althoughconj.

雖然,盡管

它可以引導(dǎo)讓步狀語(yǔ)從句,相當(dāng)于

though,但是不能同時(shí)使用but。e.g.(1)盡管這個(gè)問(wèn)題很難,他仍然能夠回答它。

Althoughthequestionisdifficult,hecanstillanswerit.(2)雖然他很累,但他還繼續(xù)工作。

____heisverytired,___hegoesonwithhiswork.A.Although,butB.Although,/C.Although,andD.Although,and,

BRead1aagain,answerthequestions.1.Whataretheytalkingabout?2.Whatcausesthiskindofbadweather?Theyaretalkingaboutsandstorms.Peoplehavecutdowntoomanytrees.Alotofrichlandhaschangedintodesert.

1bWorkaloneWritedownthefunctionsoftrees.Trees’functionsTreescanstop

thewindfrom

blowingtheearthaway.Alotofwatercanbesavedbyforests.Treescanalsopreventthewaterfromwashingtheearthaway.A.B.C.Waterisveryimportanttohumanbeings,butnoteverybodyknowshowtoprotectandsaveit.Whatwaysdoyouhavetoprotectandsavewater?

ProtectingandSavingwater2.DiscussingroupsHerearesomeways:1.Passlawsagainstwaterpollution.2.Stopfactoriespouringwastewater

intorivers.3.Usechemicalsproperly.4.Remembertoturnthetapoffwhenyouleave.5.Collectandreusewastewater....

(Usetheusedwatertowaterplants,washthefloorandsoon.)

2.GroupworkProtectingandSavingWaterHerearesomeways:1.Passlawsagainstwaterpollution.2.Stopfactoriespouringwastewater

intorivers.3.Usechemicalsproperly.4.Remembertoturnthetapoffwhenyouleave.5.Collectandreusewastewater....(Usetheusedwatertowaterplants,washtheroomsandsoon.)2.GroupworkProtectingandSavingWater

remember/forgettodosth.

記得/忘記要做某事（某事還沒(méi)有做）

remember/forgetdoingsth.

記得/忘記曾做過(guò)某事（某事已做了）e.g.我忘了鎖過(guò)門了。

Iforgotlockingthedoor

.

出去前別忘了鎖門。

Don’tforgettolockthedoor. (門還沒(méi)有鎖)(門已經(jīng)鎖了)

turnonturnoffturnupturndown

打開

關(guān)掉

調(diào)大聲、調(diào)高音量調(diào)小聲、調(diào)低音量e.g.請(qǐng)開燈。

Pleaseturnonthelight.（水、電、電視、收音機(jī)等）中考鏈接1.Ourteacherhavetoldus___thetrees.A.cutoffB.cutdownC.nottocutoffD.nottocutdown2.____theycanswim,____theynevergoswimmingalone.A.Although,butB.Though,butC.Although,/D.Because,so3.Thepolicementriedtopreventtrafficaccidents_____happening.A.fromB.inC.toD.with4.Hedidn’tcrosstheroaduntiltheredtrafficlightschanged____greenones.A.toB.intoC.forD.in5._____badweather!Wehavetostayathome.A.WhataB.HowC.HowaD.What6.Remember____thedoorbeforeyouleavetheclassroom.A.closesB.closeC.tocloseD.closing7.Thebabyissleepingnow.Please______theradio.A.turnonB.turnoffC.turnupD.turndown

拓展訓(xùn)練：

完成下列句子

1.雖然他只有五歲，但他懂得很多東西。

________________heisonlyfiveyearsold,heknowsalot.2.森林有利于防止水土流失。

Forestshelptopreventthewater____________theearth________.3.大量良田變成荒漠，遍地是沙子。

Alotofrichlandhas____________desert,leavingonlysand.

changedintofromwashingaway

Though/Although

1、cutdown

砍倒2、

osth.把……變成……3、stopsb./sth.(from)doingsth.=preventsb./sth.(from)doingsth.

阻止某人/某物做某事4、

although雖然,盡管（讓步狀語(yǔ)從句）5、remember/forgettodosth.

記得/忘記要做某事（某事還沒(méi)有做）

remember/forgetdoingsth.

記得/忘記曾做過(guò)某事（某事已經(jīng)做了）6

、turnon、turnoff、turnup、

turndownSumup

打開關(guān)掉調(diào)大聲調(diào)小聲

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