Listening and vocabulary第一课时评课稿

Cloning 蜀光中学英语组

孙懿

Teaching contents:

Listening and Vocabulary

Grammar Subjunctive (1) Teaching aims:

1.

To enable students to know more about cloning and think about its positive and negative

effects 2.

To practice listening skills 3.

To learn subjunctive mood in “if”sentences

Teaching difficulties: 1.

The practice of listening skills 2.

The subjunctive mood in “if”sentences

Teaching time:

40 minutes Teaching process: Step 1. Lead in Show a profile of the sheep Dolly, ask students to guess the meaning of “cloning”.

Step 2. Pre-listening a.

Look at the pictures and answer the questions. 

Where are the scientists working? (laboratory) 

What’s this? (cell)



What’s this? (gene)

b.

Next picture about Sheep A and Sheep B. Answer the questions: 

Who do we get our genes from? 

How many parents does a cloned animal have? 

Where are cloned animals created? 

In what way are Sheep A and Sheep B identical? c.

Words needed before listening Cloning laboratory cell gene identical beneficial precisely nonsense on the contrary for against Hugh Donaville Step 3. Listening a.

Look at the following sentences and decide which ones are for cloning and which ones are against cloning. Write F (for) or A (against). 1.

Cloning is against nature. 2.

Cloning will be beneficial to humans. For example, if a couple can’t have children, cloning could help give them a child. 3.

Cloned animals get ill and die quite young. 4.

People are afraid that scientists will creat thousands of copies of the same person. 5.

Cloning is dangerous because scientists may create monsters by mistake. 6.

We could use cloning to cure illnesses. Now listen for the first time and check your answers. b.

Listen for the second time and correct the wrong information in the sentences. 1.

Dr. Hugh Donaville works for a company that has already cloned a number of people. 2.

A sheep called Dolly was cloned in 1998. 3.

Dolly died at the age of 7. 4.

Donaville thinks scientists treated dolly the sheep as a product.

5.

Donaville says that if a child is very ill, scientists could clone it. 6.

Donaville thinks it’s a good idea to have thousands of copies of the same person.

7.

Donaville says that we could clone animals that have become extinct. c.

Listen for the third time and fill in the blanks. 1.

Dr. Donaville, could you begin with______? 2.

_______ has cloning been so far? 3.

So what are ______? 4.

I see. Now obviously,Dr. Donaville, you believe that cloning will_____ human beings. 5.

Creat an identical copy, you mean. I think that’s ______.

6.

A clone can ________ of another person. It’s not just _____ that create who you are. It’s _______ as well.

7.

I can see there are many arguments _________. Step 4. Post-listening Ask students to refer to the tapescript, and find out all the “if”sentences.

Step5. Grammar 







If it was easy, I’d be a rich man by now.

If I didn’t believe that, I’ be in a different job.

If that happened, it would be terrible. If we were able to do that, it would be wonderful. Look at these sentences and answer the questions. 1.

In the if part of the sentence, we use the past/ present tense? 2.

I’d means I had/ would? Conclusion:

If sb did, sb would do. Subjunctive (虚拟语气,指假设的情况与现实相反或实现的可能性非常小。) a.

Fill in the blanks with correct form. 1.

If scientist ______ (clone) me, I _____(feel) strange. 2.

If governments ______ (not allow) cloning, many scientists _____(be) angry. 3.

If I

______ (meet)

a copy of myself, I _____(run away) . 4.

If cloning ______ (be) easy, the world _____(be) a different place. 5.

If cloned animals ______ (live) until they ______(be) old, scientists

_____(be) very pleased. b.

Speaking. Choose at least 3 topics and share your ideas with your partner. 1.

If you were a boy/ girl, you would…

2.

If you were a star and rich, you would…

3.

If you had a monster friend, you would…

4.

If you were the sheep Dolly, what would you say to the scientists? 5.

If dinosaur came back to life, what would the world be like? 6.

If there were no phones or computers, what would the world be like? 7.

If you were given magic to realise one dream, what dream would it be? Words: Cloning laboratory cell gene identical beneficial precisely nonsense on the contrary for against

Subjunctive: If sb did, sb would do. Step 6. Revision