高中英语Unit 2 Cloning--reading(ppt)必修八新人教版.ppt

Warming-upPlease answer the following questions: 1. What’s cloning?. Warming-up It’s a way of making an exact copy of another animal and plant 2.How is a clone produced? This happens in plants when gardeners take cuttings from growing plants to make new ones, and when small parts of a plant are taken and grown in a laboratory. It also happens in animals when twins identical in sex and appearance are produced from the same original egg. 3.What benefits can humans gain from cloning? It can help cure disease and can help couples who have no baby to bear a new baby. 4.What problems may arise when humans are cloned? There may be more bad people like Hitler. 5.Should we clone human? In my opinion, I do not agree, for it may cause many moral problems. Find the main idea of each part: Para. 1 Cloning is a way of making an exact copy of another animal and plant. Para.2 Cloning has two major uses. Para 3 The problems of Dolly. Para 4 The effect of Dolly Para 5 It is forbidden to clone human being. Language focus: it is a way of making an exact copy of another animal and plant. 它是一种精确复制另一个动物或植物的方式. Language focus: Dolly’s appearance raised a storm of objections and had a great impact on the media and public imagination. 多利的出现引起了一场反对的风暴,并且对媒体和公众思想产生了很大的冲击. Language focus: However, scientists still wonder whether cloning will help or harm us and where it is leading us. 然而科学家一直致力于研究克隆到底会有助于我们还是会伤害我们, 它将会把我们引向何方. * *