Unit+2+Topic+3+Section+D 仁爱版九年级英语上册

Unit2

SavingtheEarthTopic3SectionD学习目标预习检测知识梳理课堂总结学习导航重点探究当堂检测新课导入Doyouknowhowimportanttheforestis?

Let'stalk!能熟悉并正确运用本课时的重点单词和短语12能进一步巩固复合从句3能够谈论森林的重要性1.—Dad,whymustIstop_____computergames?

—Foryourhealth,myboy.A.playB.toplayC.toplayingD.playing2.Seeingtheirteacher____intotheclassroom,theystopped___atonce.

A.walk;telling B.entering;tospeakC.enter;totell D.walking;talking预习检测DD3.Remember_____offthelightswhenyouleavetheroom,please.

A.toturn B.turning C.turn D.turns4.Englishisveryimportant.Youaresupposed_____itwell.A.learns B.tolearn C.learning D.learned5.Treesare______toprovidewoodtobuildhouses.A.cutup B.cutoff C.cutdown D.cutawayABC知识梳理Keypoints1.Theyplantdifferenttypesoftreessothatbirdsand

animalscanliveintheforests。

他们种植了不同种类的树，因此小鸟和动物们能够居住在

森林里。

sothat此处引导目的状语从句，意为“目的是，为的是”，可换成inorderthat。

eg:

Theyclimbedhighersothattheymightseefarther.

他们爬得更高，以便看得更远。Keypoints2.Youhavenotstartedturninggreenyet!

你还没有开始成为绿色使者。green不单纯指“绿色”，也可借这种颜色用来指代保护环境的人。eg:Youarepalegreen.你刚刚成为绿色卫士。Youaremediumgreen.你是中级绿色卫士。Youarebrightgreen.你优秀的绿色卫士。Keypoints3.Yourarebrightgreen,butdonotstoptrying.

你是个优秀的绿色使者，但是不要停止努力。

①stopdoingsth.停止正在做的事；eg:Whentheteachercamein,thestudentsstoppedtalkingandlaughing.当老师走进来，学生们停止了说笑。

②stoptodosth.停下来（正在做的事）做另一件事；eg:Hestoppedtotalkwithher.他停下来和她讲话。复合句的归纳总结Recyclingcanprotecttheenvironment,______itcansavemoney,too.Somethingswehavedonearegoodfortheearth______somearebad.Weshoulddoeverythingtoprotectit,_____we’llbepunishedandloseourhome.peopleproducepowerfromcoal,______itisverydirtyandcausesacidrain.CompoundSentenceGrammarandwhile

butorCompoundSentencebutsoorwhileforandaswellasneither…nor…notonly…butalso…both…and…either…or复合句是由并列连词把两个或两个以上的简单句连在一起构成的句子。连词前可用逗号，也可不用逗号。1.表示顺承、并列、递进关系的并列连词and和，both...and...……和……都，aswellas也，notonly...butalso...不但……而且……，neither...nor...既不……也不……等。eg:Myfatherboughtmeapresent,andIlikeitverymuch.HecanspeaknotonlyEnglishbutalsoFrench.特别提醒：and连接的两个并列成分的肯定句变为否定句时，and要变成or。Ican’tsingordance.复合句(CompoundSentence)2.表示转折和对比关系的并列连词but但是，yet然而，while而eg:LucylikesredwhileLilylikeswhite.Thedoctorstriedtosavethepatient,buttheyfailed.=Althoughthedoctorstriedtosavethepatient,theyfailed.尽管医生们尽力抢救那个病人，但是失败了。3.表示选择关系的并列连词either...or...要么……要么……，or或者、否则eg:Studyhard,oryou’llfailtheexam.Eitheryouorhehasmadethemistake.4.表示因果关系的并列连词

so所以、因此，for因为eg:Katewasill,soshedidn’tgotoschool.Itmusthavebeenwetlastnight,forthegroundiswet.Wouldyouliketobea__________person?First,yououghtto_________theelectricitywhenyouleavearoom.________saidthandone.Actionsspeak_________thanwords.Thetraincan________atopspeedof431kmperhour.greenershutoffEasierlouderreachFunctionsShowtime阅读课本Functions的句子,补全句子,翻译成汉语,最后小组内派代表说出更多英语谚语。例如:①Lovemelovemydog.爱屋及乌。②Nopainsnogains.不劳则无获。

通过以上活动，我们可以知道：复合句是由_________把两个或两个以上的________连在一起构成的句子。连词前可用逗号，也可不用逗号。常用的并列连词有：and和，both...and...……和……都，aswellas也，notonly...butalso...不但……而且……，but但是，yet然而，while而，either...or...要么……要么……，or或者、否则等。当堂检测见DCF课件活动小结并列连词简单句森林的重要性Forestsarethelungsoftheearth.

RemovecarbondioxidefromtheairMakeoxygenCutdownBuildhousesReadthepassageandanswerthequestionsonPage50.Forestsarethelungsoftheearth.Withoutthem,itcannotbreathe.Itneedsitsforeststoremovecarbondioxidefromtheairandtomakeoxygen.Inmanycountries,suchasNewZealand,Canada,andBrazil,forestswerecutdowntoprovidewoodtobuildhouses.Manyyoungvolunteersaroundtheworldareworkingintheirholidaystoplantnewtreestoreplacethem.

Theseyoungmenandwomenfacemanydifficultieswhentheyplantnewtrees.Theweathermaybeveryhotanddryoritmaybeverycoldandwet.Thereareoftenmanyinsectsthatbitetheseplantersontheirlegs,arms,andfaceswhiletheywork.Theycarryheavybagsofsmalltrees,andworkinginthemountainscanbedangerous.Treeplantersarechangingtheworld.Theyplantdifferenttypesoftreessothatbirdsandanimalscanliveintheforests.Eventhoughtreeplantingisverydifficult,theylovetheirwork.Theybelievethatin50yearstheirlittletreeswillbecomebeautifulforests.Skimming

Paragraph1:___________________________________Paragraph2:______________________________________________________________________Paragraph3:___________________________________Forestsarethelungsoftheearth.Theseyoungmenandwomenfacemanydifficultieswhentheyplantnewtrees.Treeplantersarechangingtheworld.

Readthepassagequicklyandfindoutthetopicsentenceofeachparagraph.

Scanning

Closeyourtextbooksanddecidewhichofthefollowingsentencesistrue“T”orfalse“F”.1.Forestsaretheheartsoftheearth.()2.Inmanycountries,forestswerecutdowntomakemoney.()3.Theseyoungmenandwomenfacemanydifficultieswhentheyplantnewtrees.()4.Eventhoughtreeplantingisverydifficult,theylovetheirwork.()TFTFDetailreading1.Howdoyouunderstand“Forestsarethelungsoftheearth”?2.Whatdifficultiesdotreeplantersfacewhentheyplanttrees?3.Whydotheyplantdifferentkindsoftrees?1.Howdoyouunderstand“Forestsarethelungsoftheearth”?Forestscanremovecarbondioxidefromtheairandmakeoxygen.

Paragraph1Paragraph22.Whatdifficultiesdotreeplantersfacewhentheyplanttrees?(1)Theweathermaybeveryhotanddryoritmaybeverycoldandwet.(2)Thereareoftenmanyinsectsthatbitetheseplantersontheirlegs,arms,andfaceswhiletheywork.(3)Theycarryheavybagsofsmalltrees,andworkinginthemountainscanbedangerous.Paragraph33.Whydotheyplantdifferentkindsoftrees?Theyplantdifferenttypesoftreessothatbirdsandanimalscanliveintheforests.Haveatry

4.Whatwillhappenifwedonotplantnewforests?5.Wouldyouliketobeatreeplanterwhenyouareolder?Whyorwhynot?Ifwedon’tplantnewtrees,theforestswillbecomesmallerandsmaller.Withouttrees,thewindandthewaterwilltaketheearthaway,andtheoxygenintheairwillbecomelessandless.…ProjectFindingaGreenestPerson1.Answerthefollowingquestionstoseehowgreenyouare.1)Doyourecyclenewpapersorcans?A.Often.(2) B.Seldom(1) C.Never.(0)2)Whatdoyouusuallytake?A.Abath.(0) B.Ashower.(2)3)Whenyouhaveashortjourney,howdoyouusuallygothere?A.Walkorrideabike.(3) B.Gobycar.(0) C.Gobybus.(2)4)Whatdoyouusuallydowhenyouseeotherslittering?A.Stopthem.(2) B.Pickthelitterup.(1) C.Donothing.(0)5)Howoftendoyouusepapertowels?A.Ofen.(0) B.Seldom(1) C.Never.(2)6)Howoftendoyoueatfastfood?A.Ofen.(0) B.Seldom(1) C.Never.(2)7)Whattypeofbagsdoyouuseforshopping?A.Basketsorclothbags.(3) B.Reusedplasticsbags.(1) C.Newplasticsbags.(0)8)Howoftendoyouturnoffthelightswhenyouleavearoom?A.Nearlyalways.(2) B.Seldom.(1) C.Never.(0)Scores:

0—4Youhavenotstartedturninggreenyet! 5—9Youarepalegreen.10—13Youaremediumgreen.Tryharder.14—15Youarebrightgreen,butdonotstop