英语必修3人教版：Unit 4 Astronomy：The science of the stars学案-新人教版必修3.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. many