Lesson8:WhyArePlantsImportant?I.Learningaims:Masterthenewwordsandphrases:pleasant,shade,basic,soilII.Learningimportantanddifficultpoints:1)bemadeof/in/from/by2)without的用法pleasantshadebasicsoilNewWords★Whichdoyoueatmore,plantsormeat?★Canwelivewithoutplants?Whyorwhynot?★Whatdopeopleuseplantsfor?ThinkAboutIt!Let’sDoIt!Inasmallgroup,makealistoftheplantsyoueateveryday.Whatwouldhappentousiftherewerenoplants?Tryusingthisphrase:“Ifwehadnoplants,________.”LanguageLanguagePointsPointswithout是介词，后面接名词或动名词，意为“没有；在没有……的情况下”，既可以放在句首也可以放在句尾。反义词是with。如：Inaword,wecan’tlivewithoutplants.总之，我们离不开植物。Withoutwater,fishcan’tlive.没有水，鱼不能活着。bemadeof；bemadefrombemadein；bemadeby（1）bemadeof意为“由……制成”，从制成品上能看出原材料来。如：Thatchairismadeofwood.那把椅子是用木头做的。(从外表能看出是木头)（2）bemadefrom意为“由……制成”，从制成品上看不出原材料。如：Thepaperismadefromwood.纸是由木头做的。(从外表看不出木头)辨析（3）bemadein意为“在某地制成”，in后面接地点。如：ThiswatchismadeinChina.这只手表在中国制造。（4）bemadeby意为“通过什么方式或者由某人制成”。如：Thecoatismadebyhand.衣服是手工做的。Exercises1.Manystudentsusetheircomputers____gamesnow.A.playB.playingC.toplayD.played2.—Ilikelisteningtomusicverymuch.—______.A.SodoIB.SoIdoC.SoamID.SoIamI.单项选择。CA3.Halfofthemilkinthisstore______fromShandong.A.comesB.comeC.havecomeD.arecoming4.HowcanIdomyhomework?Idon'tevenhaveapen______.A.tomakeB.tomakeinC.towriteD.towritewithAD1.TheZhaozhouBridgeismade___stone.2.Whatdidyoucometoschool______?3.Peoplecangetnews______manyways.4.Allthelivingthingscan'tlive________air.5.Wecanmakethismedicine_____plants.II.用适当的介词填空。offorinwithoutfrom1.from,food,plants,comes,our,most,of__________________________________.2.medicine,sick,doctors,help,to,people,use__________________________________.3.a,made,you,straw,do,hat,of,have__________________________________?4.different,are,many,there,world,plants,in,eat,the,people,that,can.III.连词成句。MostofourfoodcomesfromplantsDoctorsusemedicinetohelpsickpeopleDoyouhaveahatmadeofstrawTherearemanydifferentplantsintheworldthatpeoplecaneatHomeworkReadthetextafterclass,andtrytoreciteit.
