Using LanguageⅡ教案评析

Unit 2 Cloning教学设计

教学目标Teaching goals : Enable the students to improve their reading ability 教学重点Teaching important points: Get the students to know some about clone and dinosaurs Improve ss’ reading ability

教学难点Teaching difficult points: Get the students to practice how to find the detailed information 教学方法Teaching methods : Skimming, Study individually, practice in groups.

教具准备Teaching aids : computer ,white board and slides.

Teaching procedures & ways

Step1. greet

the whole class as usual

Step2. Revision 1.Review new words and phrases of

unit 2(ask the ss to read new words and phrases of unit 2 together 2.Review some key words 1.dinosaurs

n

恐龙

2.fierce

adj

凶猛的，猛烈的

3. extinct

adj

灭绝的，绝种的

4 .embryos

n

胚胎，萌芽时期

5.mammal

n

哺乳动物

6.initial

adj

最初的

7.diversity

n

多样性，差异

Step3 Leading in

Show ss some pictures of dinosaurs and Jurassic Park to arouse ss’ interest. Give ss some questions to discuss. 1. Have you ever seen the film Jurassic Park? Why do people like this film? What animals do you see in the film? Are they real?

2. Do you like dinosaurs? Can you see them in our real life? Why? 3. Do you think it is possible to clone dinosaurs? If not, why? If yes, do you

think that’s good for human beings? Why?

Step4.

Reading and comprehension Play the tape of this part and ask ss to read the passage then answer some questions

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Listening and Reading Comprehension I Match the main idea with each paragraph Para1 explain the impossibility of cloning dinosaurs

Para2

conclude that it’s just a dream

Para3

introduce the topic of the passage

Arrange according to time 5. research using the embryos of mice 4. first experimental clones of cows 8. first experimental clones of mice 7. work on the embryos of sheep and mice 2. China’s first cloned twin calves

3. cloing of frogs

6. first clone of a mammal 1. cow gave birth to a bison

Reading

and

Comprehension II True or False 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.

Choose the best answer 1.The writer of the text _____.

A. is excited by the possibility of cloning

B. believes that extinct animals can be

C. thinks it impossible or unsuitable to clone

D. dreams of dinosaurs returning to the earth 2. The film Jurassic Park is popular

C. it was directed by a scientist who

D. it proves very interesting 3. Which of the following is true? ______

B. Dolly the sheep was the first cloned

C. The name of the cloned cow is “Bison”.

D. China was successful in cloning mammals.

4. The reasons why a group of cloned animals all die of the same illness do NOT include ____.

A. they have the same arrangement of

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B. there isn’t enough diversity in the group

D. their arrangement of genes can not

resist that new disease

A. scientists are experimenting to clone dino

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 years 6. What is the writer’s attitude towards cloning the dinosaurs? ____.

A. Supportive.

B. Neutral (中立的).

C. Negative (否定的).

D. Subjective(主观的). Fill in the blanks according to the passage

People interested in Not only film makers but also ______________.

_______ for impossibility its •

Perfect DNA is needed. • There is not enough

________ in the group. A (n) ______________ would be needed for the cloned extinct animals.

__________ The chance of dinosaurs returning to the earth is

______________. Step5Home work Finish Ex. 2 and 4 on P16.

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