unit2 L11.pptVIP

identical adj. (the same) 完全相同的twin n. 双胞胎identify v. 鉴别；确认not only…but also 不但… 而且Generally speaking= To be general.Frankly speaking= to be frank combine 组合；合并 juicy adj. 多汁的 New words clone v. 克隆 human being 人类 exactly adv. 精确的 original adj. 原始的 divide v. 分开 Argue – adult adj 成年的 Dolly 多利 design v. 设计designer insect n. 昆虫 damage v. 损害 Warming up dolly Changing DNA A mouse with a man’s ear on it’s back  By changing DNA, scientists made stronger cotton plants. Scientists clone dinosaurs Is it possible for scientists to clone people? Lesson 11: Cloning People? debate Is it good idea for scientists to clone people? Reading Task: Read the text and decide whether the following statements are true (T) or false(F). We can make clones from dead animals. Each clone would be a different person. We can combine the DNA of pigs and dogs. The clones are the same height. There are tw0 ways to clone people. Language notes human一词的用法 human用作名词表“人类”意义时相当于human being，a human指“一个人”，它的复数形式是humans，而human being的复数形式是human beings。 human being, mankind 1) divide vt. vi.（常与in, into连用）分开，划开 Let’s divide ourselves into several groups. 我们分成几个小组吧。 This class is too large; we shall have to divide it for oral practice. 这个班级太大，我们必须分开做口语练习。 2)英语中的“一半”是a half。但如果说“一半的……”，也就是说如果后接一个名词时，则多用half a+名词。 half a kilo 0.5千克\\half a day/week/year半个/半个星期/半年 half an egg/apple半个鸡蛋/苹果 half a kilo of bread/bananas /meat千克的面包/香蕉/肉 a. one and a half后面习惯接复数名词 The film lasted one and a half hours 【拓展】： . b. half of之后接单数名词（代词宾格）是谓语用单数；若接复数名词（代词宾格）位于用复数。 Half of it is good. 那一半是好的。 Half of them are good. 那些的一半是好的。 c. two hours and a half；two and a half hours，均为“2.5”个小时。two and a half之后要跟复数名词，单数动词。如： Two and a half hours passes quickly. 2.5个小时过得很快。 One group agues for an idea; the other argues against it. 一个小组赞成一个观点；另一个小组反对一个观点。 argue for赞成，其反义词组是argue against（反对） Do you argue for their plan or (argue) against? 你赞成他们的计划还是反对他们的计划？ * * * * * * * * * * *