人教版高中英语课件：Unit 2 Cloning.ppt

dolly unit 2 clone reading unit 2 cloning reading cloning: where is it leading us? pre-reading in pairs discuss what you understand about cloning. then judge the following sentences are true or fasle. eading i scanning ( 5ms ) write the letter “t”if the statement is true. write “f”if it is false. 1.cloning means making a copy of an animal or a plant. 2.dolly the sheep was the first successful clone of a mammal. 3.natural clones happen in animals as well as in plants. f t t fast reading i.skim and sum up the main idea of each paragraph. para.1 cloning is a way of making an exact copy of another animal or plant. para.2 cloning have two major uses. para.3 the problems of dolly para.4 the effect of dolly para.5 it is forbidden to clone human beings. definition : it is a way of making an exact copy of another animal and plant. t fitting适合于的，与相称的 4. pick out the proper explanation for words on the left straightforward commercial conservative identical accumulate obtain exactly the same not complicated be related to make money not very modern in style get something gather or pile retell the passage cloning is a way of making an exact copy of another animal or plant.it happens in plants as well as animals.cloning has two major uses.one is for commercial purposes;the other research. although cloning animals is complicated,dolly the sheep is a breakthrough. before lone,she got seriously ill and only lived 6.5 years. however,her appearance raised a storm of objections and arguments. some countries became nervous and conservative.therefore, research into human cloning is forbidden. nobody knows where cloning is leading us. homework read the passage again and again,fi