(共14张PPT)
Module 5 Cloning
Comics about Cloning
Read the paragraphs 4-7 of the text on the P64 and find the advantages and disadvantages of cloning.
Cloning and DNA
The advantages of cloning
Paragraph 4
Paragraph 5
Paragraph 6
Paragraph 7
as an alternative treatment for couples who find it difficult to have children
to reproduce the talents of exceptional people
to obtain a supply of stem cells
to help farmers grow resistant crops
Paragraph 4
Paragraph 5
Paragraph 6
Paragraph 7
The disadvantages of cloning
a clone may possess new vices instead of existing virtues
embryos made from clones would be wasted which some people would find unacceptable
to rely on a few cloned animals or crops would restrict biodiversity
a clone would be under unknown psychological pressure
Work in pairs and discuss your answers to the questions.
Do you think the advantages of cloning are greater than the disadvantages
If there were no disadvantages in cloning, which exceptional person would you like to clone Can you say why
There are many majors related to biology in the university. Biochemistry, bio-information, bio-science, … do you want to take up something related to biology
Nowadays, the biotechnology is growing very fast. What effect do you think it has on human If you are a bio-scientist, will you work on cloning or get away from it Give reasons for your opinion.
Writing
For cloning Against cloning Your opinion
Cloning will be beneficial to human beings.
Cloning is a way of creating human organs which can be used on old people and patients.
Clone animals that are becoming extinct.
…
Cloning is wrong and against nature.
Cloning treats animals and people as things, as products.
People are afraid that scientists will create thousands of copies of the same person.
…
1.引起激烈争论
2.一项科学突破
3.干扰自然
4.在我看来
5.从……中受益
benefit from
Useful expressions
cause a heated debate
a scientific breakthrough
go against nature
in my opinion
1.克隆人这一话题在世界上引起了激烈的争论。
Human cloning ________________________________.
2.一些人认为……;而另一些人则持有相反的观点。
Some people suggest... Others, however,_______________________.
3.对于那些没孩子的人来说也是个好消息。
It is also good news for those ________________________________.
4.如果我们干扰自然会造成许多麻烦。
If we go against nature, we ________________________________.
5.只有通过这种方式人类才能从中受益。
_________________________ we make it beneficial to mankind.
Useful sentences
has caused a heated debate
hold the opposite opinion
who can't have babies
Only in this way can
might create problems
Tips on Argumentative Writings
Use the present simple tense.
Raise the questions.
Bring up two different opinions.
List reasons and make a comparison.
Make a conclusion (present your view).
Para 1
Para 3
Para 2
1、正文的开头语:
I’m writing to tell you about a discussion we have had about whether students should be allowed to...
We’ve had a survey on whether students should be allowed to...
2、常见过渡词:
Opinions are mainly divided into two groups.
Different people, however, have different opinions on this matter.
What’s more, we can...as well as...
On one hand...On the other hand...of the students think...
3、常见总结语:
In short, no agreement has been reached yet.
In short, the students have not arrived at any agreement yet.
4、列举理由:
Firstly, … Secondly, … Lastly, …
Sentence patterns
Nowadays, with the development of technology, life is becoming more and more convenient. People can use robots to do some housework, and students can do homework, listen to music and play games with their mobile phones and computers. But some people think “relying on machines” will have bad effects on human.
What do you think about it Please writing a composition to express your opinion and reasons.