高二英语（人教）选修8课件：Unit+2《Cloning》Language+points2+Word含解析.pptVIP

Unit 2 CloningLanguage Points In pairs, look at these pictures and discuss which ones are natural clones and which ones are man-make. Explain how they differ. 两人一组, 观察图片并讨论哪些是自然无性繁殖, 哪些是人工的。解释它们的区别。 1. differ vi. Her method doesn’t differ much from mine. 她的方法跟我的没有很大不同。 Modern airplanes differ from early ones. 现代飞机跟早期的在很多方面有所不同。 I differ with him how to solve the problem. 对于如何解决问题, 我跟他的意见不一致。They differ with each other on moral standards. 关于道德标准, 他们的见解不同。 differ是不及物动词, 主要有两个义项：“不同, 相异；不同意, 意见相左”。常见的搭配有： 1). sb. differ from/with sb. on/about sth.; 2). sth. and sth. differ in… ; 3). sth. differ from sth . 2. undertake vt. The procedure is difficult to undertake, of course. 当然, 这个过程很难实施。 The scientist undertakes the experiment. 科学家从事这项实验。 I can undertake the responsibility for the changes. 我愿意承担这些变革的责任。 The lawyer undertook a new case. 那个律师接了一个新的案子。 undertake是及物动词, 主要有两个义项: 着手做, 从事, 进行; 担任, 承担, 答应, 同意。 完成下列句子。 (1) He will _________ __ _______ next month (去旅行). (2) He __________ __ ____ ____ (承担一项新任务).undertooktasknewaaundertakejourney 3. disturbing adj. Then came disturbing news that Dolly became seriously ill. 然后传来了多莉得了重病的令人烦恼的消息。 The news from the front is very disturbing. 来自前线的消息令人极为不安。 disturb vt. 扰乱, 使不安, 弄乱; disturbed adj. 被扰乱的, 动乱的, 不安的； disturbing adj. 令人不安的。特别提示:现在分词表示: 令人怎么样, 过去分词表示: 被使得怎么样, 感到怎么样。 如: an interesting story 令人感兴趣的故事 an interested look 感到兴趣的表情 surprised people (感到)惊奇的人们 4. cast down 使沮丧 Cloning Scientists were cast down to find that Dolly’s illness were more appropriate to a much older animal. 克隆科学家沮丧地发现多莉的病更容易在年老的羊身上。 Don’t be so cast down. Just keep up your spirits. 不要这么沮丧, 打起精神来！ cast down 有两个义项: 毁掉；使沮丧 cast away 丢弃 cast off 放弃；丢弃 cast out 赶走 将下列句子译成英语(1) 听到这个消息他很沮丧。 ___________________________________(2) 发现事情的真相使他很沮丧。 __________________________________ _