1. Unit 3

2. Unit 3
Science and nature

3. Writing a formal letter
Task
Writing a formal letter

4. changing or correcting a text
Skills building 1:
changing or correcting a text
Let’s first do an interesting game called —
“Chinese whisper”
The key：
The sentence that “the man who laughs last laughs the best” is a useful motto.

5. Conclusion 1. correct grammatical errors and spelling mistakes
When we are asked to pass information,
we usually make mistakes. We need to:
1. correct grammatical errors and spelling mistakes
2. make changes to the information in the text
3. change the style or the tone

6. Tips for listening read the questions or instructions carefully
listen closely when spellings are given
pay attention to expressions that
introduce contrary, such as:
No, I don’t think so.
That’s not right.
And I think it should be…

7. Notes about height-increasing operations
Listen to the conversation between
them and correct the notes below.
Notes about height-increasing operations
1. Legs can be made up to 8 cm longer.
2. The new bone is not as strong as before.
3. A 45-year-old man died after trying to grow by 6 cm. 18
去掉 not
35-year-old

8. 4. Patients cannot do any exercise for three years.
5. It takes 14 months to increase your height by 12 cm.
6. Age pf patients: 16 to 55.
7. 5% of operations are not successful.
8. Costs yuan.
two 18 60 8%
85000

9. confirming information
Step 1:
confirming information
1. What is cloning?
2. Do you know any food
from cloned plants or
animals?

10. Listen to the tape then correct
the following sentences.
2. Twins are clones of each other, and are the same creature or plant.
3. You can clone a deaf person and bring him or her back to life.
but are not
can’t; dead

11. 4. You’ll probably never eat any food from cloned plants.
5. Cloning does not occur in nature.
6. Many of the grapes, tomatoes and bananas in the supermarket come from plants that had been cloned in this way.
’ve; already eaten
has always occurred
potatoes; have

12. 7. Cloning can really help us in farm construction, so that we can feed more people with cheaper and bitter food.
8. We can clone a cow so that it will produce high-quality milk.
food production; more and better
so去掉；produces

13. Circle T for true or F for false.
1. Cloning is dangerous in most cases.
T / F
2. Nearly all plants spread by making
clones of themselves. T / F
3. Farmers have been making clones for
centuries. T / F

14. 4. Scientists only clone plants that grow
in poor soil. T / F
5. Clones can be better in quality than
the plants or animals they were cloned
from. T / F

15. conducting a discussion
Skills building 2:
conducting a discussion
Asking for people’s opinions
e.g. What do you think?
Don’t you think so?
Do you agree?
Is that your opinion too?
What are your thoughts on this topic?
Do you feel the same about…?

16. e.g. Another argument is that… Another way of looking at it is…
Introducing new ideas into the discussion
e.g. Another argument is that…
Another way of looking at it is…
Don’t forget…
On the other hand, …
We can also…
Have you thought about?
But what about…?

17. collecting more information
Step 2:
collecting more information
List the things you know about food from cloned plants or animals. You can refer to the previous steps for more information.

18. A You are going to interview another scientist about food from cloned plants or animals. Add a sixth section. Then write some questions next to the sections.

19. Interview form
Do you think it is safe for people to have food from cloned plants or animals?
Are there any side effects if people have food from cloned plants or animals？

20. 3 Does it taste the same as / nicer than normal food?
4 Do you agree that food from cloned plants or animals ids more expensive than normal food?

21. Do you think the government should do something to ensure its safety
Do you think the government should do something to ensure its safety? If so, what should be done?
Have you thought about whether people would like to buy food from cloned plants or animals?

22. Work in pairs and do Part B on Page 55, then with another
Group work
Work in pairs and do Part B on
Page 55, then with another
partner do Part C, finally work in
small groups and do Part D.

23. writing a formal letter
Skills building 3:
writing a formal letter
The basic elements and format of a formal letter:
e.g. your address / the date / receiver’s name, job title and address / formal greeting / formal ending / your name and signature Some useful phrases to start and end a formal letter:

24. Start: With reference to… / Thank you for… /In reply to… / I am writing to inform you …
End: I would be grateful if you could… / I hope you would… / I look forward to hearing from you soon. / If you require any further information…

25. Label the different parts of the letter.
Mr. Frank Brown —
receiver’s name
Public Relations Manager —
receiver’s job title
Safety Laboratories
305 Queens Drive
Liverpool
receiver’s
address

26. Dear Mr. Brown —
formal greeting
Yours sincerely —
formal ending
Jim Davidson —
your signature
101 High Street
London
your address
1 May 2011 —
the date

27. writing a letter to a supermarket
Step 3:
writing a letter to a supermarket
Group work
Read the articles in Part A on Page 57 and underline all the advantages and disadvantages about food from cloned animals. Then discuss how to write the letter.

28. Language points on page 56
…it would show that the majority of people…
majority n. 多数，多半
a / the majority of + cn. / un.
e.g. in the majority 占大多数
The majority of his books are kept upstairs.他的大部分藏书在楼上。
The proposal was passed by a majority of 66.提议以超过66票通过。
minority 反义词 ：少数

29. Homework
Write a formal letter to the head office of the supermarket chain.
You may want to mention:
your opinions about food from cloned animals
the pros and cons of food from cloned animals
any concerns your group brought up
what do you think the supermarket should do