2019春八年级英语下册Unit8Agreenworld课时内容精讲课时作业(新版)牛津版.docx

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1、1Unit8moreandmore 的用法Moreandmorefamiliesowncarsandthiscausesseriousairpollution.越来越多的家庭有了小汽车,这导致了严重的空气污染。(P107)1.more and more 意为“越来越多”,既可以修饰可数名词,又可以修饰不可数名词。当表示越来越少时,应用 fewer and fewer 修饰可数名词,用 less and less 修饰不可数名词。例如:More and more water is coming out.越来越多的水流了出来。Fewer and fewer people like this boo

2、k.越来越少的人喜欢这本书。There is less and less air pollution here.这里的空气污染越来越少。2.“比较级+and+比较级”意为“越来越”。例如:He is taller and taller.他(个子)越来越高。Our classroom is more and more beautiful.我们的教室越来越漂亮。separate 的用法InSwitzerland,thingslikeglass,plasticandpaperareseparatedintodifferentgroupsandthenrecycled.在瑞士,先把诸如玻璃、塑料、纸张

3、等物品分成不同的类别,然后再回收利用。(P108)1.separate 意为“从分离、挑拣出来”, separate.from.是指从一个大的整体里分出来。例如:The children are separating the good apples from the bad ones.孩子们正在把好苹果与坏苹果分开。England is separated from France by the English Channel.英吉利海峡把英国和法国分开。We walked until midnight and then separated.我们散步到午夜才分开。2.separate into

4、是指把一些东西分离,不是把一个整体分开,例如:2We are separated into 4 groups.我们被分为 4 组。(因为我们每个人都是一个单独的个体,所以不能视为整体。)others 的用法Someoftheclothesaresoldincharityshops,somearegiventothepoor,andothersaresenttofactoriesforrecycling.一些衣服放在慈善店出售,一些送给穷人,还有一些送到工厂循环利用。(P108)1.当在一定范围内,除去一部分后,剩余部分并不是全部的时候,可以用 others。others 和 some 对比使用

5、时,意为“有些”。例如:Some cleaned the windows,and others mopped the floor.有的擦窗户,有的擦地板。2.the others 是“其余的”意思,表示在一个范围内除去一部分后剩余的全部。例如:He is cleverer than the others in his class.他比他们班其他的同学都聪明。Some of the pencils are red.The others are green.一些铅笔是红色的,其余的都是绿色的。living 的用法Ifwedonotacttoimprovetheenvironment,moreliv

6、ingthingswillbekilledbypollution.如果我们不采取行动来改善环境的话,更多的生物会由于污染而死亡。(P114)living 意为“活着的,有生命的”,主要用作前置定语,放在定冠词 the 之后,表示一类人;也可用作表语,修饰人或物。例如:The living people will go on with the work of the dead.活着的人将继续死者的工作。Latin is not a living language.拉丁语不是现代使用的语言。harmful 的用法Airpollutionisharmfultoourhealth.空气污染对我们的健康

7、有害。(P116)1.harmful 为形容词,意为“有害的”。例如:Traffic fumes are harmful to the environment.汽车尾气对环境有害。32.harm 作动词时,意为“损害, 伤害”;作名词时,意为“伤害,损害”。例如:Too much sunlight can harm your skin.太多的阳光会伤害你的皮肤。These food didnt do him any harm.这些食物对他不会有任何伤害。3.be harmful to ones health =do harm to ones health,意为“对某人的健康有害”。例如:Junk food is harmful to our health.=Junk food does harm to our health.垃圾食品对我们的健康有害。

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