4.1 Reading【 高效备课精研 】 七年级英语下册 高效课堂（牛津深圳版）（广州沈阳通用）（广州沈阳通用）

英语（牛津版）七年级下册EnglishSavethetreesReadingUnit4Treesareourfriends.Treesareimportantinourdailylife.InUnit3wetalkedaboutourfriend:animals,inthisUnitwearegoingtotalkaboutman’sanotherfriend:trees1课堂导入Treesaresoimportant.Buthowmuchdoyouknowaboutthem?Canyousayoutthepartsofthetree?branchesrootsleaves(leaf)stem/trunkgrowthringsWhatdotreesdoforus?Treesprovideuswithfruit.=Treesprovidefruitforus.=Wecangetfruitfromtrees.Fruit,furnitureWecanalsousetreestomakemanythingssuchas:chopsticks,furniture,paperandsoon.Whatdotreesdoforus?Leavesprovideshadeforpeople.Theycankeepuscool.

LeavesWecanalsogetoilandteafromsomespecialtrees.Whatdotreesdoforus?Theyaremajorfightersagainstairpollution.

LeavesTheyhelpfightagainstairpollution.Mostimportantly,theycanmaketheairfreshandclean.Howdotheyfightagainstairpollution?Leavescanchangeharmfulgasintooxygen,sotheycanmaketheairfreshandclean.co2O2

takein

giveoutproduceoxygenforustobreatheTreescanmaketheworldmorebeautifulandgreen.Whatdotreesdoforus?Branchesprovidehomeforanimalssuchasbirds.branchesBranchesarehometo

animalssuchasbirds.Treesmakeourlivesmoreconvenient.woodchopstickspaperpencilsfurniture2课堂活动AWhatdo

you

know

about…

branch

fruit

leaf

rootfruitbranchleafrootHowmuchdoyouknowabouttrees?Trytheshortquizbelow.1Writedownthenamesofthepartsofatree.Usethewordsfromtheboxtohelpyou.a.Theyhelpfightagainstpollution.b.Theyprovideuswithwood,fruit,etc.c.Theyarehometobirdsandanimals.d.Alloftheabove.2Whatdotreesdoforus?

BBeforeyoureadLookatthepicturesandthetitleoftheinterviewonpage45.Thenanswerthequestionsbelow.1Whatdoyouthinktheinterviewisabout?

a.Thelivesoftrees.b.Whytreesareimportantinourdailylives.2Whatcanwemakefromtrees?Writedownthreeexamples.____________________________________

paperpencilschairsTreesinourdailylivesRebeccawantstoknowmoreabouttreesandhowtheyhelpus.SheisinterviewingDrJonesabouttrees.Rebecca: Howdotreeshelpus,DrJones?DrJones:Theyhelpusinmanyways.Theykeeptheaircoolandclean.Theytakeinharmfulgasesfromtheairandproduceoxygenforustobreathe.They’remajorfightersagainstairpollution.Rebecca:Iknowtreesalsomakeourlivesmoreconvenient.Manyofthethingsinourdailylivescomefromtrees.Forexample,paperandpencils.Readthefirstpartoftheconversationandanswerthefollowingquestion.Whyaretreesmajorfightersagainstairpollution?Theykeeptheaircoolandclean.Theytakeinharmfulgasesfromtheair.Theyproduceoxygenforustobreathe.DrJones: You’reright,Rebecca.Infact,wegetalotmorefromtrees.Wegetfruitandoilfromthem.Teaalsocomesfromtheleavesoftrees.Lookaroundthisroom.Alotofthefurnitureismadeofwood.Treesarereallyimportantinourdailylives.Rebecca: Ican’timagineaworldwithouttrees.DrJones: Butwecutdownmillionsoftreeseveryyear.Weshouldstopdoingthisifwedon’twantaworldwithouttrees.Readthesecondandthirdpartoftheconversationandanswerthefollowingquestion.FruitOilTeaandfurnitureWhatcanwegetfromtrees?TreesareimportantExamplesTreesaremajorfightersagainst____________.Theykeeptheaircoolandclean.Theytakeinharmfulgasesfromtheairandproduceoxygen.Treesmakeourlives____________.Manythingsinourdailylivessuchaspaperandpencilscomefromtrees.Wealsogetfruit,oilandteafromtrees.Alotoffurnitureismadeofwood.airpollutionmoreconvenientTopicsentencesTreesarereally________inourdailylives.Theyhelpusinmanyways.UsefultreesProductsfromtreesTreesindangerFactsPeoplecutdown_________treeseveryyear.Whattodo?Weshouldstop__________somanytrees.importantMillionsofcuttingdownfurniturefruitandoilpapersandpencilsteaThetablebelowtellsussomefactsabouttrees.Readitandcompletethetable.1.Harmfulgasesare____people’shealth.a.goodforb.badfor2.Treesproduceoxygen.They___oxygen.a.takeb.make3.Airpollutionisamajorprobleminthecity.Thisproblemis____.a.bigandimportantb.notveryimportantbbaCVocabularyThewordsinitalicsarefromthearticleonpage45.Circlethecorrectanswerstocompletethesesentences.C14.Washingmachinesmakeourlivesmoreconvenient.Withthehelpofthem,ourlivesbecome____.a.easierb.richer5Whenyouimagineapicture,youhaveit____.a.onpaperb.inyourmindabCompletetheposterbelowwiththewordsfromthebox.AllabouttreesDidyouknowtrees(1)________oxygen?Didyouknowtreeshelpusfight(2)______pollution?Didyouknowthe(3)_______inourclassroomismadeofwood?Didyouknowtreesmakeourlivesvery(4)__________?Ifyouwanttoknowmoreabouttrees,joinour“Allabouttrees”talkat4p.m.on26October(Tuesday).WewillinterviewDrJonesaboutthelivesoftreesandtheir(5)_______uses.produceagainstfurnitureconvenientmajoragainstconvenientfurnituremajorproduce

C2

TreesinourdailylivesTreesaremajorfightersagainst____________.They:keeptheair_______________.takein_______________fromtheairandproduceoxygen.Treesmakeourlives____________________.Manyofthethings(e.g.paperandpencils)inourdailylives____________.Wealsogetfruit,oilandteafromtrees.Alotoffurnitureis_______________.airpollutioncoolandcleanharmfulgasesmoreconvenientcomefromtreesmadeofwoodDComprehension

Readtheinterviewonpage45andcompletethenotesbelow.Lookatthesetwosentences.Doyouknowthemeaningsofusefulandharmful?Treesgiveusalotofusefulthings.(树带给我们许多有用的东西)Treestakeinharmfulgasesfromtheair.(树木吸收空气中的有害气体)Usefulandharmfulbothendin-ful.Itisasuffixmeaning“fullof”.(有益的和有害的都以ful结束。这是一个后缀，意为“充满；装满”)Canyouguessthemeaningsofthefollowingwords?hopefulhelpfulCanyougivesomemoreexamples?Theyprovideuswithwood,fruit,etc.它为我们提供木材、果实等。

providesb.withsth.=providesth.forsb.为某人提供某物Sheepprovideuswithwool.=Sheepprovidewoolforus.

绵羊为我们提供羊毛。Languagepoints根据中文意思完成句子。

政府为村民们提供法律服务。Thegovernment_______thevillagers______legalservice.=Thegovernment_______legalservice______thevillagers.provideswithprovidesfor3.Theykeeptheaircoolandclean.它们（树木）保持空气凉爽和清洁。keep是动词，意为“保持；继续”。常用句型有：①keepsb/sth+adj.意为“使某人/某物保持某种状态”。如： 别伤心了。Don’tkeepyourselfsad.

②keepdoing...意为“继续做……”。如：机器一直运转。

Themachinekeptworking.③keepsb/sthdoing...意为“让某人/某物一直/继续做……”。如： 别让火一直烧着。

Don’tkeepthefireburning.2.inmanyways在许多方面

way作可数名词，意为“方面，方式，道路”。It’sthebestwaytostudyEnglish.这是学习英语最好的方法。4.Theytakeinharmfulgasesfromtheairandproduceoxygenforustobreathe.它们从空气中吸收有害的气体，制造氧气供我们呼吸。①takein吸收Treestakeincarbondioxide.树木吸收二氧化碳。②harmful adj.有害的beharmfulto对……有危害Smokingisharmfultoyourhealth.吸烟有害健康。形容词harmful意为“有害的”，由名词harm加后缀.ful构成。后缀.ful表示“充满……的；有……性质的”，常加在一些名词或动词后面构成形容词。如：beautiful漂亮的；thankful感激的。5.forexample例如

forexample与suchas的区别1)forexample“例如”+句子、段落,用来举例说明某一论点或情况,一般只举同类人或物中的“一个”为例,可位于句首、句中或句末。2)suchas“例如”+单词、词组或动词ing，用来列举事物时,一般列举同类人或事物中的几个例子。插在被列举的事物与前面的名词之间,as后面不可有逗号。如：Wegotalotofthingsfromtrees.Forexample,rubberisfromrubbertrees.我们从树上得到了很多东西。例如，橡胶来自于橡胶树。Chinahasmanybigcities,suchasBejing,Shanghai,Guangzhou.中国有许多大城市，例如北京、上海、广州。6.Alotofthefurniture

ismadeof

wood.很多家具是木制的。①furniture n.家具为不可数名词，可用apieceof,anarticleof以及some,much来修饰。我们的家具不多。Wedon'thavemuchfurniture.床、椅子、桌子和书桌都是家具。

Beds,chairs,tablesanddesksarefurniture.②bemadeof意为“由……制成”。如：我的课桌是木制的。

Mydeskismadeofwood.注意区别：bemadeof从产品中能看出原材料bemadefrom从产品中看不出原材料这座小桥是石头砌成的。Thesmallbridgeismadeofstones.葡萄酒是由葡萄制成的。Wineismadefromgrapes.7.Butwe

cutdownmillions

oftreeseveryyear.

但是，我们每年都砍掉大量的树木。①cutdown砍伐，砍倒Don’tcutdownthetreethatgivesyoushade.遮阴之树不可砍。②million意为“百万”，表示具体的数目时用单数形式；表示不具体的数目时用复数形式，且与of连用，构成短语millionsof，意为“大量的；数以百万计的”。如：这栋房子价值两百万元。

Thehousecoststwomillionyuan.每年，数以百万计的游客来游览北京。

Everyyear,millionsoftouristscometovisitBeijing.类似million用法的数词还有：hundred和thousand。【辨析】stopdoingsth意为“停止做某事”，表示不做这件事了；stoptodosth意为“停下来去做某事”，表示停下手中正在做的事，去做另一件事。请对比：当陈老师进来时，学生们都停止了说话。

ThestudentsstoppedtalkingwhenMr.Chencamein.他累了，想停下来休息一会儿。

Heistired.Hewantstostoptohavearest.8.Weshouldstop

doing

thisifwedon’twantaworldwithouttrees.如果不想让这个世界没有树木，我们就应该停止这样做。stop在本句中作动词，意为“停止”，后面可以接动词的⁃ing形式或动词不定式，构成stopdoingsth和stoptodosth，两者的意义和用法有所区别。

3课堂小结1.Wehaveread

an

interviewabouttrees.2.Wehavegraspedthenewwordsandexpressionsinthereading.1.根据句意及所给单词的首字母写出所缺单词，注意其形式。1.Youareagreatdoctor.Thankyoufors______mylife.2.Canyoui______aworldwithoutair?3.Don’tgointotheroom.Thereisbadg______init.4.Eatingtoomuchsweetsish______toourteeth.5.Iwilld______theproblemwithyouthisafternoon.6.Ifyoudon’tunderstand,I’llgiveyouanothere______.avingmagineasarmfuliscussxample4课堂训练2.选择最佳答案填空。1.Youareexcellent____manyways. A.on B.