Cloning: Where Is It Leading Us?,UNIT 2 Clone,克隆：它将把我们引向何方？,,The topic sentence of each paragraph.,Cloning has always been with us and is here to stay. Cloning has two major uses. On the one hand,.followed the progress of . On the other hand, . raised a storm of objections(反对) and had a great impact（影响）on . However, .whether cloning will help or harmus and where it is leading us.,Definition/ Introduction,Major uses,Progress/ Impact,Future,1. 2. 3. 4.5.,Para 1 Definition of cloning,According to Para.1, what is clone?It is a way of making an exact(精确的) copy of another animal or plant. 2. According to Para.1, when does natural cloning happen?,It happens in plants when gardeners take cuttings from growing plants to make new ones. 2) It also happens in animals when twins identical in sex and appearance are produced from the same origianl egg.,Which is Not the use of cloning?A. To produce commercial(商业的；贸易的) quantities of plants.B. For research on new plant species.C. To clone anything we want.D. For medical research on animals.2. Which one is difficult to undertake?A. Cloning plants. B. cloning animals.. is straightforward while . complicated.,Para 2 The major uses of cloning,vt. 着手；从事；承担,adj. 简单的；直接的；坦率的,The procedure(程序) of cloning Dolly,nucleus (with all the genes needed),joined,,,,,,,,,,The cloned lamb looks the same with A? B? C?,,,,egg cell卵细胞,,somatic cell体细胞,nucleus细胞核,,embryo 胚胎,carrier代孕母羊,cloned lamb,egg cell without nucleus,Para 3&4 The progress and impact of Dolly,What are “the same arbitrary (任意的) fate（命运）” of many cloned animals？A. They may develop the illnesses of older animals.B. They may die younger than the doners (提供者) .C. They develop normally. 2. What are the influences of Dolly’s appearance?A. A large number of people disagree on cloning animals. B. The Media（媒体） rushed to report the development of cloning.C. People began to imagine using cloning to cure serious illnesses and to produce human beings.,a storm of objections,had a great impact on the media and.,.opened everybody’s eyes to the possibility of using cloning to cure serious illnesses and even to produce human beings.,,Para 5 The future of human cloning,,What’s Chinese researchers’ attitude towards the future of human cloning?A. Nervous and conservative(保守的；守旧的) .B. China forbids（禁止；不准） research into human cloning.C. China continues to develop cloning for medical needs.,but .China and. , continue to accumulate evidence of.,vt./vi. 积累；聚积,The writer provides both advantages and disadvantages of cloning but no personal opinion about cloning.,1. The writer’s attitude towards cloningA. Objective (be fair) / Neutral B. Negative (be against it)C. Positive (be in favor of it)2. What is the writing style?Expositive (说明文). Descriptive. (描写文)Argumentative (议论文) .Narrative (记叙文),赞成；支持,。