英语人教版九年级全册Unit13SectionA 1a-1c

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1、Unit13We’retryingtosavetheearth!SectionA(1a-1c)【重点讲练】1.Theairhasbecomereallypollutedaroundhere.这儿的空气已经被污染了。辨析：turn,get与become⑴become多指身份、职位等的变化，它强调变化的过程已经完成，后面可接名词或形容词。Hebecomesateacher.他成了一名老师。⑵get多用于口语，表示一种变化过程，强调的是“渐渐变得”，后常接形容词的比较级形式。Inwinterthedaysgetshorter.冬季白天变得较短。⑶turn指在颜色和性质等方面与以前的完全不同，强调变化

2、的结果。Leavesturnedbrowninthemountains.山里的树叶已变成了棕色。【小试牛刀】用turn,get和become填空。①Hermother____angrywhensheheardthenews.②It’s_____darkeranddarkeroutside.③Themilkhas_____bad.2.Tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.为了减少空气污染，我们应该乘坐公共汽车或者地铁，而不是开车。cutdown意为“减少”；是“动词+副词”结构的短语，所带的宾语为名词时，

3、宾语可位于down的前面或后面；为代词时，只能位于down前面。You’dbettercutthearticledowntoabout2,000words.你最好能把这篇文章压到两千字左右。【拓展】cutdown还可表示“砍倒”的意思。Theycutdownthebigtree.他们砍倒了这棵大树。cutoff切断；切除cutinto把……切成……cutup切碎cutin插队【小试牛刀】单项选择—DidyoutellittoJack?—Yes,butwewere____inthemiddleofourtelephoneconversation.A.cutdownB.cutoffC.cutupD

4、.cutinto3.It’sgoodforhealthanditdoesn’tcostanything!它对身体有好处并且不会花费任何东西。辨析：spend,cost,take,pay花费主语表示的内容spend人宾语可以是钱、精力、时间等。cost物或事后接life,money,health,time等，侧重于“花费”的代价。take事或人它说明事情完成“花费了……”。pay人意思是“支付”，作为及物动词，宾语可以是“人”、“钱”payfor人宾语为“物”、“事”，for表示支付的原因【小试牛刀】单项选择1.—Doyoutakeexerciseeveryday?—Yes.Ialways___

5、thirtyminutesaftersupper.A.spendB.costC.takeD.pay2.I_________$300forthebike.A.tookB.spentC.costD.paid【达标训练】Ⅰ.用方框中所给词的适当形式填空。cost,wood,coal,bottom,litter1.Don’tthrow_____(垃圾)everywhere.2.Inwinter,manypeopleburn____(煤)tokeepwarm.3.Thepolicefoundabodyatthe____(底部)ofthelake.4.The_____(费用)oflivinginbigci

6、tiesisveryhigh.5.Hekeepsarabbitinabig____(木制的)box.II.单项选择。1.He____gooutwithhisparents,butnowhe____stayingathomealone.A.usedto;isusedtoB.isusedto;usedtoC.useto;isusedtoD.isusedto;isusedto2.Theinterestingbook_____me10yuan.A.spentB.tookC.paidD.cost3.Wemustdosomethingusefulto____pollution.A.cutoffB.cutu

7、pC.cutdownD.cutin4.Smokingcan_____lungcancer.You’dbettergiveitup.A.workonB.leadtoC.takeawayD.putout5.—Whatarethe_____ofbikeriding?—Itcanhelpcutdownairpollution.A.advantagesB.reasonsC.resultsD.ideasIII