八年级英语下13课课件.ppt

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1、Lesson13Whyareplantsimportant?Learningaims1.Masterthenewwords:reason,air,pleasant,among,dig,shade,energy,nothingdie,heat,bamboo.kilogram.2.Masterthephrases:carry…away,make…into…,intheshade.3.辨析：between与among的区别。onthetree与inthetree的区别。4.without的用法。5

2、.熟读课文。6.通过本课认识到植物的重要性，呼吁大家保护植被爱护环境。Step2:Checkthenewwords.根据句意及首写字母提示完成单词。1.Thesungivesush___andlight.2.Allplantstakee____fromthesunandmakeitintofood.3.Itisp_____tohaveawalkintheparkaftersupper.4.Sheisthetallesta____herfriends.5.Theoldmand___whenhischi

3、ldrencametoseehim.6.D___aholefirstandputthesmallplantinit.7.Pandasliketoeatb______.8.Wecansitunderatreeinthes_____.eatnergyleasantmongiedigamboohadeStep3:Readthetext.Step4:Readthetextmorecarefullyandfillintheblanks.Treeshelp____theair.Theygiveus____--l

4、ikeapples,bananasandoranges.Wecan____and____thingswithtrees—likechairs,bedsandhouses!Wecansitunderatreeinthe____.Plants_____thesoil.Thenthewindandwaterdon’t____thesoilaway.Allplantstake____fromthesunandmakeitintofood.Peopleandotheranimalsneedthefoodto_

5、___.cleanfoodmakebuildshadecovercarryenergyliveStep5Findoutthefollowingsentencesinthetext.1.在林间散步是令人愉快的。2.面包不是长在书上的。3.那我们可以坐在树荫下乘凉了。4.这样风和水就不会把土壤带走了。5.所有的植物都在阳光中获得能量，并将它转变成食物。6.没有了食物他们会内有东西吃会死掉。It’spleasanttowalkamongthetrees.Donutsdon’tgrowontrees.The

6、nwecansitunderatreeintheshade.Thenthewindandwaterdon’tcarrythesoilaway.Allplantstakeenergyfromthesunandmakeitintofood.Withoutfood,theywouldhavenothingtoeatandtheywoulddie.Step6Discussinyourgroupsandfindoutthelanguagepointsinthesentences.Step7Showthelan

7、guagepoints.1.It’spleasanttowalkamongthetrees.among是介词,意为在……和……之间用于三个或三个以上的人或物，或笼统的一群人或一些人之中。其宾语通常是一个表示笼统数量或具有复数（或集合）意义的名词或代词。between主要指两者之间，其宾语往往是表示两者的名词或代词，或者是由and连接的两个人或物：1.Hesits_______JimandDanny.2.TherearafourAmericanstudents______them.betweenamo

8、ng2.Donutsdon’tgrowontrees.inthetree一般指外来的东西在树上，不是树本身所有，如人、动物等在树上。onthetree通常指树本身长出的东西，如枝、叶、花、果等。1.Jackis___thetree.Hecan’tgetdown.2.She’spickingoranges____thattree.3.Hesawacat____thetree.4.Therearemanyapples____thetree.inoninon3.Thenwe