Unit 2 DNA>Lesson 11 Cloning People?>

课件23张PPT。
Lesson 11
Cloning People?Fill in the blanks with proper prepositions or conjuntions:
Do you know the answers ________ the questions?
DNA is ________ a blueprint.
You composition is quite good except ________ a few spelling mistakes.
Are you friends related ________ you?
Are your arms long ________ short?
Your bones have the same DNA _______ your skin.
You have your own DNA, but it repeats the patterns ________ your parents’ DNA.
Some health problems come ________ your family’s DNA. Scientists can look _______ these problems in your DNA. tolike for toor asfrom fromforFill in each blank with the proper word from the brackets:
1. This is the __________(identify) hotel that we stayed in
last year.
2. The two babies are __________(twin).
3. June first is ___________(child) Day.
4. Your brothers are people _________(relate) to you.
5. We should eat _________(health) food.
6. Do you know who is the _________(own) of the house?
7. A blueprint is a ____________(draw).
8. Your body uses this pattern to build __________(it).
9. You have your own DNA, but it repeats the patterns
from your __________(parent) DNA.
10. Some health problems come from your family’s DNA.
_________(science) can look for these problems in your
DNA.identicaltwinsChildren’srelatedhealthyownerdrawing itselfparents’Scientists同义句转换，每空一词：
1. Both he and she are coming to the party.
____ ____ he ____ _____ she _____ coming to the party.
2. Tom draws well. Linda draws well, too.
Tom draws well. _____ ________ _______.
3.Dad’s eyes are not very big. Mine are not very big, either.
Dad’s eyes are not very big. ________ _________ ______.
4. Sometimes they can help you before you fall ill.
Sometimes they can help you before you _________ ill.
5. Lucy is as old as Lily.
Lucy has _______ _________ age as Lily.
6. We all went to the park, but Jenny didn’t go.
We all went to the park ___________ Jenny.
7. John is from Canada. John ______ from Canada. Not onlySo does Linda but alsoisNeither are mine becomethe sameexcept/butcomes根据汉语意思完成句子，每空一词：
你穿多大号的鞋？
_______ _______ shoes do you wear?
2. 我们用蓝图建造房子。
We _______ a blueprint ______ _______ a house.
3. 除了窗子小外这座房子很漂亮。
The house is beautiful ______ _____ the small windows.
4. 你的头发和皮肤有同样的DNA。
Your hair has ______ _______ _______ _____ your skin.
5. 她不但会唱歌，而且会跳舞。
She can _____ ______ sing ______ ________ dance.
6. 每一个生物都有自己独特的DNA。
______ _______ ______ _______ its own unique DNA.
7. 昨晚他去看电影了，我也去了。
He went to see a film yesterday evening. ____ ____ ____.What sizeuseto buildexcept forthe same DNA asnot onlybut alsoEach living thing hasSo did I A task:

What things about you show your parents’ DNA?
With a partner, talk about things that are the same
between you and your parents. You can start like
this:
Mom is tall. So am I.
Dad’s eyes are not very big. Neither are mine.Think about it!
What is DNA?
What are identical twins?
What do you know about DNA?
Do you know Dolly, the first cloned sheep?
What if scientists could make clones of human beings?
Each clone would have the same DNA. But would they be exactly the same as the original human? Or would they be different?
the “blueprint of life” Would clones be exactly the same as the original human?
Or would they be different?
Read quickly and answer the following question:Can we make clones from dead DNA?
What are the two ways to clone people?
Would cloning humans be a good or bad thing?
Read carefully and answer the following questions:We can divide a growing egg in half. Then we would have two eggs with the same DNA.
Or we could clone an adult person , the same way scientists cloned Dolly, the sheep. Can scientists design new plants or animals by combining the DNA of other plants or animals?
What have scientists designed by changing DNA?
Why are some scientists worried?Read carefully and answer the following questions:Stronger cotton plants.
A new kind of corn.
A new kind of rice.
Cows that make more milk.damage insectLanguage notes:1. What if scientists could make clones of human beings? what if … “要是……会怎么样/怎么办？”
后面是条件状语从句 What if the plants are bad for humans?
What if you could combine other animals or plants to
make something new?
I don’t like bange(蹦极) at all. What if the rope breaks?
You must work hard now. What if you fail in the
examination of June? make clones of sb./sth.
clone sb./sth. clone n. & v. “克隆”Language notes: human = human being 指与动物区分的人或人类
a human humans (pl.)
human being human beings (pl.) mankind 不可加限定词，但可用形容词修饰，可作单数
或复数用 man 作“人类”解时，常用单数形式，也可用复数形
式，且前面无限定词，单数处理 They are not the bones of an animal, but a human being’s.
Man/mankind is fighting a battle against pollution.
Men/mankind is much clever than it was a thousand
years ago.
All progressive __________ love peace.mankindLanguage notes:2. But would they be exactly the same as the original
human? exact adj. exactly adv. “恰恰；精确的” The plane arrived at exactly 10 o’clock.
Tell me exactly where Mary lives.
It is exactly eight o’clock, not one minute more nor one
minute less.3. In some ways, clones would be exactly the same. in some ways “在某些方面” 在某些方面他们看上去一样。
从某些方面看你是对的。 In some ways, they look the same. In some ways, you are right.Language notes:4. Because we are more than DNA. more than + 名词 “多于……;非但……尤其是”
more than + 数词 = over +数词 “以上；不止” He is more than a teacher. He is a doctor, too.
There are more than/over fifty students in the classroom.5. Many things change us: the places we live, the food we
eat and the people we know.6. We can divide a growing egg in half. Please divide the apple in half/into halves.
Let’s divide ourselves into several groups. divide v. “分开，分割” 常与in或into连用Language notes:7. Or we could clone an adult person, the same way
scientists cloned Dolly, the sheep.9. They can design new plants by combining the DNA of
other plants. take … from … “从……提取”
put … into … “把……放入”8. Scientists can take DNA from one kind of animal and
put it into another kind of animal. design v. “设计；计划” designer n. “设计者” Language notes: Who _______ can play the guitar?
Where _______ did you go?
Do you have anything ________ to say?
The ________ boys are playing football.
What’s that in your the _________ hand?elseelseelseotherother else修饰不定代词、疑问代词或疑问副词，必须位于这
些词后
other修饰名词，位于名词的前面10. What else have scientists designed by changing DNA?Fill in the blanks with proper prepositions or conjunctions:
What if scientists could make clones ___ human beings?
But would they be exactly the same _____ the original humans?
______ some ways, clones would be exactly the same.
We can divide a growing egg _______ half.
They divided the class _________ four groups.
Some people worry ________ the answer _______ that question.
7. His sweater is good except _______ the colour.
8. Yesterday I lost the key ________ the door. of as In inabout tofor to intoFill in the blanks with proper prepositions or conjunctions:
9. Your DNA is _______ every part of your body.
10. Japanese is quite different ________ English.
11. Many clothes are made _________ cotton.
12. Have you ever seen a pig _________ a dog’s body?
13. ____ changing the DNA, scientists made stronger cotton plants.
14. Scientists say we need to know more ________ DNA before we start changing it.
15. We can make plants that are bad ________ insects. infrom of withBy aboutforFill in each blank with the proper word from the brackets:
What if it __________(rain) tomorrow?
Other people think human _________(clone) is okay.
Everyone except Jim and John _______ (be) there when the meeting began.
Li Lei, together with us ________ (be) playing now.
His uncle has been _________(die) for many years.
Li Lei is always __________(worry) about his studies.
What he said makes me __________(worry).
Who is the ________(design) of our new school building?
9.The boy can ______(exact) learn these numbers by heart.
10. Li Yuchun is 1.74 metres in __________(high).rainscloningwasdeadworried worrieddesignerexactlyheightis同义句转换，每空一词：
What else have scientists designed by changing DNA?
What _______ _______ have scientists designed by
changing DNA?
2. The computers are made in Japan. They sell well.
The computers _________ ____ _____ in Japan sell well.
The computers ________ in Japan sell well.
3. We can only make clones from living DNA.
We can only make clones ______ ______ living DNA.
4. It may let scientists find new ways to help people who
are ill.
It may let scientists find new ways to help _____ _______.
5. You can divide the apple in half.
You can divide the apple _______ ________.other thingswhich/that are mademadeout ofsick peopleinto halves根据汉语意思完成句子，每空一词：
在某些方面，我们可以帮助别人。
____ ______ _______, we can help other people.
2. 许多衣服是棉布做的。
Many clothes _______ _______ _______ cottons.
3. 我们可以培植对昆虫有害处的植物。
We can make plants that ______ _____ _______ insects.
4. 科学家能从一种植物中提出DNA，并把它放入另一种
植物。
Scientists can _________ DNA __________ one kind of
animals and _______ it _______ another kind of animal.
5. 通过DNA，科学家能鉴别你和与你有关的人。
From your DNA, scientists can identify you and people
_______ _______ you.In some waysare made ofare bad fortake fromput intorelated to根据汉语意思完成句子，每空一词：
6. 我们在北京西客站换了火车。
We _______ ________ at Beijing West Railway Station.
7. 她的毛衣和我的颜色一样。
Her sweater is ______ _______ _______ _______mine.
8. 我们分成几个小组讨论我们的计划。
We _________ ourselves ________ several groups to
discuss our plan.
9. 我们若是开会迟到了又有什么关系呢？
_______ _______ we are late for the meeting?
10. 但是他们和原来的人完全一样吗？
But would they be _________ the same as the original
human?changed trainsthe same colour asdivided intoWhat ifexactlyA task:

A debate is an argument between two groups. One
group argues for an idea; the other argues against
it.
Plan a debate about this topic: is it a good idea to
clone humans?