选修8unit2Reading.ppt

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1、人教课标人教课标 高二高二 选修选修 8Unit 2 The text is mainly about the 1. _ of animal cloning and the life of Dolly the sheep, as well as the reasons why cloning is still 2. _.controversial (保守）保守）procedure(过程）过程）Read the text quickly and complete its main idea.Read through the passage and find the main idea of ea

2、ch paragraph.Cloning is a way of making an exact copy of another animal and plant.Cloning has two major uses.The birth and death of Dolly.The effect of Dolly.It is forbidden to clone human beings. Para 1. Para 2. Para 3. Para 4. Para 5. Choose the best answer.1. As for the cloning procedure of Dolly

3、 the sheep, all of the following are true EXCEPT _.A. the lamb is the clone of the donated cell from sheep BB. electricity is neededC. female sheep B provides an egg cellD. three female sheep are used C 2. From the last paragraph we know that _.A. cloning will come to an end because of objections B.

4、 cloned human beings will be produced in the near futureC. many countries will use cloning in a wise wayD. all the research into human cloning will be forbidden C (1) Cloning means making a copy of an animal or a plant. (2) Gardeners can make a lot of money by cloning plants. (3) Cloning animals is

5、as complicated as cloning plants. FTF Write the letter “T” if the statement is true. Write “F” if it is false.TT(4) Dolly the sheep was the first successful clone of a mammal. (5) Natural clones happen in animals as well as in plants.Enjoy some pictures about dinosaurs. 暴龙暴龙tyrannosaurus剑龙剑龙 stegosa

6、urs角龙角龙 ceratopsids翼龙翼龙pterodactyl雷龙雷龙 brontosaurusDoes the author believe the dinosaurs can be cloned? The writer of the text _. A. is excited by the possibility of cloning fierce and extinct animals B. believes that extinct animals can be brought back to life by cloningC. thinks it impossible or u

7、nsuitable to clone extinct animals like dinosaurs D. dreams of dinosaurs returning to the earth1. The film Jurassic Park is popular because _. A. people are interested in the subject of cloning B. all the actors are dinosaurs C. it was directed by a scientist who clones dinosaurs D. it proves very i

8、nterestingChoose the best answers. A2. Which of the following is true? _A. Mice were cloned in 1981.B. Dolly the sheep was the first cloned animal.C. The name of the cloned cow is “Bison”D. China was successful in cloning mammals.3. The reasons why a group of cloned animals all die of the same illne

9、ss do NOT include _. A. they have the same arrangement of genes B. there isnt enough diversity in the group for it to overcome illnesses C. the illness is a new one D. their arrangement of genes can not resist that new disease We can infer from the text that _. A. scientists are experimenting to clo

10、ne dinosaursB. dinosaurs will never return to the earthC. cloned animals will only live in the zooD. the DNA of dinosaurs can only survive 10000 yearTrue or false according to the text. 1. Scientists are still experimenting with cloning mammals because they think it can make money.2. The animals that have disappeared from the earth, like dinosaurs, can be brought back to life through cloning.3. If we can clone any extinct animals, we should let them live in a zoo.FFF