新人教版必修三 Unit 4 Astronomy-The science of the stars学案.docVIP

Unit 4 Astronomy：The science of the stars 1. spread vt.vi. 展开,铺开;散布;扩大;延伸 The bird spread its wings. 那只鸟展开了翅膀。 Flies spread disease. 苍蝇传播疾病。 常用结构: spread sth. with sth. 用……抹/涂/铺…… spread ...on ...把……抹/涂/铺在…… be spread for摆好（桌子）准备 spread oneself\[口\]舒展四肢(躺下) spread out张开，伸开，铺开，展开，伸长 高手过招 单项填空 Paper making began in China and to Europe. (2009·12·河南郑州检测) A. Spread B. grew C. Carried D. developed 解析:选A。句意为：造纸术起源于中国，又传播到了欧洲。spread传播。 2. method n. 方法 He has introduced a new method of teaching. 他引进了一种新的教学方法。 What is the most effective method of birth control? 控制出生率的最有效的方法是什么？ 联想拓展 by this means=in this way=with this method 用这种方法 易混辨析 method/means method侧重“理论方法”，指做某事的具体步骤或程序。 a new teaching method一种新的教学方法 means（单复数同形）侧重“通过手段”或“利用工具”去达到某种目的。 高手过招 选词填空(method/means)（原创） ①The quickest of travel is by plane. ②She has a very scientific of dealing with political problems. 答案：①means②method 3. harmful adj. 有害的 常用结构: do sb. harm/do harm to sb. 对某人有害 mean no harm 无意伤害别人;没有恶意 harm one’s image/reputation 损害某人的形象/名声 do more harm than good 弊大于利 There is no harm in (sb.s) doing sth. =It does no harm (for sb.) to do sth. (某人) 做某事无害处 be harmful to 对……有害 harm n.v. 损害，伤害 Smoking is harmful to your health. 吸烟有害健康。 高手过招 单项填空 He is a nice dog. He won’t do you any .（原创） ill B. bite C. hurt D. harm 解析:选D。考查固定搭配。do sb. harm/do harm to sb. 表示 “对某人有害”。句意为：这是一条温顺的狗，它不会伤害你。 故选D。 4. mass n. 质量；团；块；大量；(前加the) 群众 A liter of gas has less mass than a liter of water. 1公升气体的质量少于1公升水的质量。 She has a mass of things to do. 她有一大堆的事情要做。 The masses have boundless creative power. 人民群众有无限的创造力。 常用结构: be a mass of 遍体是……; 充满了…… in mass 全部, 全体; 整个地 in the mass 总体上;总的说来 the (great) mass of 大多数, 大部分 masses of sth.大量的东西 高手过招 单项填空 The young dancers looked so charming in their beautiful clothes that we took pictures of them. (2009·12·安徽合肥检测) A.