② Why is it wrong to clone an extinct animal if it would have to live in a zoo?

③ Why can't you clone the DNA of animals that have been extinct longer than 10,000 years?

3. Intensive reading

Purpose: To get Ss to have some details in the text.

(1) Ask Ss to read the passage carefully and choose the best answer to complete each sentence.

① Who are interested in cloning fierce and extinct wild animals?

　　A. Film makers

B. Ordinary people

C. Film makers and ordinary people

D. No one

② We are a long way from being able to clone extinct animals because ________.

A. scientists are not experimenting with cloning mammals

B. the cloning of mammals is not difficult

C. scientists have not succeeded in cloning any mammals

D. the cloning of mammals is a new field

③ The cloning of mammals began seriously ________