Using LanguageⅡ板书设计及意图

Unit2cloning

using language Pre-reading1. What animals have people cloned?

2. When did dinosaurs disappear from the earth?

Fast reading：

Tell T or F

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 extinct animals, we should let them live in a zoo. Careful reading: Please read the passage again, and choose the correct answer. 1.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 cloning

C. thinks it impossible or unsuitable to clone extinct animals like dinosaurs

D. dreams of dinosaurs returning to the earth 2. Which of the following is true?________ A.Mice were cloned in 1983.

B. Dolly the sheep was the first cloned animal. C. The name of the cloned cow is “Bison”

D. China was successful in cloning twin calves. 3. The reasons why a group of cloned animals all die of the same illness do NOT include ________.

A. they have the same arrangement of genes

B. there isn’t 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 4. We can infer from the text that _______. A. scientists are experimenting to clone dinosaurs B. dinosaurs will never return to the earth C. cloned animals will only live in the zoo D. the DNA of dinosaurs can only survive 10, 000 year Language points

1.strike v. 打, 撞, 罢工；给...以印象

strike … into one’s heart 使

…刻骨铭心

2.

bring … back to life使苏醒；使活泼；

使生动

3. in vain 徒然, 白费, 无效