必修三 第一单元单词学案 1.harm n.&vt. 伤害，损害 do sb./sth. harm = do harm to... 对……有害 do sb./sth. good = do good to... 对……有好处 do sb./sth. wrong = do wrong to... 冤枉某人 Excessive drinking will do you a lot of harm. 饮酒过度非常不利于健康。 What he did _____. 他的所作所为损害了他的形象 harm one's reputation/image 损害某人的声誉/形象 What he did _____. 他的所作所为损害了他的形象。 be harmful to... 对……有害 be harmless to... 对……无害 _____ can _____ the health of your children. 你吸烟对你的孩子们的健康有害 .单句语法填空 (1). Staring at the screen of the computer for a long time will do harm _____ your eyes. (2). Scientists do not know how much and what kinds of noises are _____ (harm)to ocean animals. (3). The treatment did him more_____ than good, though the doctor insisted it was _____ .(harm) 2.soil n. 土壤;国土,领土,土地 3.ecosystem n. 生态系统 4.overseas adj. / adv. 海外的,国外的 overseas students/markets 海外留学生/市场 overseas Chinese 海外华人 live overseas/go overseas 在国外生活/出国 He has returned to South Africa _____. 他结束了漫长的海外旅行回到南非。 If you're staying for more than three months or _____, a full 10-year passport is required. 在国外工作或居留3个月以上，需要持10年期的护照。 5.region n. 地区,区域;行政区 in the region of （表示不确切的数字等）大约，差不多 同义词： approximately We divide into pairs and each pair takes a region 我们分成两人一组，每一组负责一个区域。 He earns somewhere _____$50000. 他每年大约赚5万美元。 6.continent n. 大陆，陆地，洲 continental adj.大陆的，洲的 the South American continent 南美大陆 7.million n. 一百万;许多,大量 It is reported that several million people are starving in the world because of the shortage of food. millions of 数百万 6 million 六百万 one in a million 万里挑一的人/物；不同寻常的人/物 学法点拨： (1).当hundred, thousand, million, billion 以及dozen, score等以复数形式存在时，表示泛指的数量，其后要加of，但前面不能用表示具体数量的词修饰。 (2).当hundred, thousand, million, billion以及dozen, score等以单数形式存在时，其前常用表示具体数量的词或several, some, many, a few等修饰。 巩固练习 ①. The local government brought in _____ (五百万) dollars last year to develop the economy. ②. The Great Wall is such a well-known tourist attraction that _____(数百万人) pour in every year. ③. The _____(三百) workers on strike were surprised to see that _____ (数千)people were on the street to support them. 8.length n. 长,长度;时间的长短;篇幅,（电影）片长 We have already discussed this matter at length. 。 “You owe me an explanation,” he said at length. at length 详尽地；=in detail; 充分地；最后；终于 in length 在长度上 go to great lengths (to do sth.) 尽一切可能/不遗余力(做某事) for a length of time 相当长的一段时间 two meters in _____ = two meters long/wide/high/deep 两米长/宽/高/深 Each class is _____. 每一节课为45分钟。 单句语法填空 ①. The fish can grow to_____ length of four feet. ②. The_____ (long) of your talk must be at least 10 minutes. ③. Can you help me _____(length) this ... ...
~~ 您好，已阅读到文档的结尾了 ~~
