高二英语人教版选修8_unit2_Cloning_Reading_课件

There are moral objections to Cloning can help save cloning human beings. endangered animals.
Procedure of Cloning a Sheep
Consolidation
Clone is a way of making an exact_______ copy of major another animal or plant. Cloning have two ______ uses. Firstly, gardeners use it all the time to produce _____________quantities. Secondly, it is commercial species valuable for research on new plant _________and for medical research on animals. But through the _________and death of Dolly, cloning has a lot of birth problems. On the other hand, we know cloning is controversial in some countries for ________and moral ___________reasons. religious
as long as / shorter than / longer than
Para 4
The impact of Dolly
The word “controversial” in para 4 probably means ____________. A. complicated B. arguable C. important
Fill in the chart using the information from the text.
Problems /dangers of cloning
Advantages of cloning
Medical cloning could produce cures for serious degenerative illnesses in humans. Cloning plants can produce plants of similar quality for sale. Cloning plants can be useful for research on new plant species.
Homework
1.Read the passage again and find out all the noun clauses in the text. 2.Write a short passage according to the following topic.
Should human cloning be allowed?
Third reading -----"True" or“ False" 1. Cloning means making a child of another animal or plant. plants. T
F
2. Gardeners can make a lot ofБайду номын сангаасmoney by cloning 3. Cloning animals is as complicated as cloning
is one that occurs in nature and a man-made clone
is one that is procured through human
intervention(介入，干预).
Are the following clones the same? If not, what is the difference?
Unit2 Reading
How much do you know about cloning?
Quiz:
Cloning is a way of making an exact copy of
another animal or plant. It can be divided into
natural clone and man-made clone. A natural clone
Animal clones may develop the illnesses of older animals. Animal clones may die younger than the donor animals. Evil leaders may want to clone themselves.
the author does not state Because____________________________
any personal opinion about cloning. _____________________________________
Challenge yourself
Para 2
The major uses and procedures of cloning
1.How many major uses do cloning have?
Firstly, …commercial… Secondly, …research…
2. When was the cloning of Dolly the sheep born?
1996
Para 3
The problems of Dolly
normally At first, the fact that Dolly developed ______ encouraging in a natural way was __________. that Later, the news _____she lived for six years, orginal one half the length of the life of the ______ disturbing was __________. Finally, the problem that occurred to the scientists was that a cloned animal lives shorter than _____________ the original one.
People’s reaction to cloning Para 5 Human beings.
True or false: 1 People feared that cloning evil leaders would do harm to the world.
Many governments forbade reserch 2 All the research into human beings will into human beings. be forbidden.
3 Some countries will use cloning in a wise way.
The writer’s attitude towards cloning
A. Objective (be fair) B. Negative (be against it) C. Positive (be in favor of it)
NO. The first two are man-made clones,
the rest two are natural clones.
2001 cloning cattle
2002 cloning cats
2005 cloning dogs
Reading
Skimming
2 ___Cloning has two major uses and successful clone. 1 ___(definition) Cloning is a way of making an exact copy of another animal and plant 4 ___The effect of Dolly. ___ 5 People’s reaction to cloning human beings. ___The problems of Dolly. 3
plants and It happens both in ______ animals It has two kinds: in_______.
Natural clone Man-made clone
What is cloning ?
Cloning is a way of making an exact copy of another animal and plant.
plants. F 4. Dolly the sheep was the first successful clone of a mammal. plants.
T
5. Natural clones happen in animals as well as in
T
Para 1 The definition of cloning
1. In the second paragraph, the word “straightforward” means ____. A. uncomplicated B. honest C. frank D. difficult 2.What is the writing style? A. Expositive （说明性的） B. Descriptive (描述性的） C. Argumentative （议论性的） D. Narrative （叙述性的）