Using LanguageⅡ优质公开课教案

Unit 2

Cloning

The Forth period

Learning about language and Using language

Aims: Let the Ss know more about the cloning. Improve the students’ listening, reading and writing ability.

Contents: Task one: gap filling 1.

Complete the important affairs about cloning, using suitable words or phrases from the prevision sections. 2.

Please enjoy some pictures about dinosaurs.

3.

Use the words and phrases to express the thoughts. Task two: reading and discussing 1.

Read the passage and answer the questions. 1.

Why shouldn’t you clone an extinct animal if there isn’t enough diversity in the group?

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

2.

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

The popularity of the film Jurassic Park, in which a scientist

clones several different kinds of extinct dinosaurs, proves how interested ordinary people are in the subject

电影《侏罗纪公园》的欢迎证实了普通人对这一话题是多么感兴趣,在该电影中一位科学家克隆了几种不同的恐龙。

in which引导定语从句, how引导宾语从句。

From time to time people suggest that the animals that have disappeared from the earth, like dinosaurs,can possibly be brought back to life through cloning.

人们时常设想从地球上消失的动物,例如恐龙,有可能通过克隆技术使它们复活。

It is useless to clone an animal if there is not enough diversity

in the group for it to overcome illnesses.

该群中如果没有足够的多样性使它克服疾病,克隆动物就没有用。

Task three: listening and writing 1.

A sample dialogue

Listen to the tape again and then work with a partner to fill in the chart on page 16. 2.

Whose idea do you agree with according to the materials? Get ready to 3.Homework: Finish Ex. 2, Page16;

Ex. 3-4, Page17.

write a composition. Use your own ideas as well as those in the text.