Unit 4 Astronomy：The science of the stars1. spreadvt.&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\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. grewC. 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/meansmethod 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：① means②method3. harmfuladj. 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）A. 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。...
