Unit2 Reading cloning

Learning important and difficult points(学习重、难点). Study goals (学习目标) 1. Enable the studeuts to learn important words and expressions . clone，commercial，proceduer，undertake，arbitrary，forbid，accumulate，cast down，object to，the media，in favour of 2 .Enable the students to understand the meanings of important sentences in the passage. 3. Enable the students to describe cloning, and find out the advantages and the problems of cloning . Learning important and difficult points(学习重、难点). 1、Let students comprehend the passage completely and find out the important sentences . 2、Help the students analyze the writing techniques of the article.

How much do you know about cloning?

Quiz: What's clone? 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 is one that occurs in nature and a man-made clone is one that is procured through human intervention(介入，干预).

NO. The first two are man-made clones, Are the following clones the same? If not, what is the difference? NO. The first two are man-made clones, the rest two are natural clones.

2001 cloning cattle

2002 cloning cats

2005 cloning dogs

Look at the following pictures and answer the questions: Lead - in: Look at the following pictures and answer the questions: 1. It’s the most famous sheep in the world. Do you know how Dolly is different from other sheep? She was cloned while the others were born naturally. It is the copy of another sheep.

Procedure of Cloning a Sheep

Reading Cloning: Where is it Leading us?

I.Find the main idea of each paragraph. A. Cloning has two major uses. B. The problems of Dolly. C. The effect of Dolly. D. It is forbidden to clone human beings. E. Cloning is a way of making an exact copy of another animal and plant.

II.主旨大意 Where is it leading us? The main idea of the text is____ A. animal cloning is very valuable and can benefit the world. B. animal cloning could be misused by bad people so it must be forbidden C. animal cloning is well developed because Dolly the sheep was born. D. animal cloning raised arguments and scientists are not sure about its future.

III. Detail reading Fill in the chart using the information from the text.

It happens both in ______ and in_______. It has two kinds: Para 1 The definition of cloning It happens both in ______ and in_______. It has two kinds: plants animals Natural clone Man-made clone What is cloning ? Cloning is a way of making an exact copy of another animal and plant.

1996 The major uses and procedures of cloning Secondly, …research… 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

The problems of Dolly Para 3 as long as / shorter than / longer than At first, the fact that Dolly developed ______ in a natural way was __________. Later, the news _____she lived for six years, half the length of the life of the ______ one was __________. Finally, the problem that occurred to the scientists was that a cloned animal lives _____________ the original one. normally encouraging that orginal disturbing shorter than as long as / shorter than / longer than

The word “controversial” in para 4 probably means ____________. The impact of Dolly The word “controversial” in para 4 probably means ____________. A. complicated B. arguable C. important

People’s reaction to cloning Human beings. Para 5 People’s reaction to cloning Human beings. True or false: 1 People feared that cloning evil leaders would do harm to the world. 2 All the research into human beings will be forbidden. 3 Some countries will use cloning in a wise way. Many governments forbade reserch into human beings.

B. Negative (be against it) C. Positive (be in favor of it) IV. The writer’s attitude towards cloning A. Objective (be fair) B. Negative (be against it) C. Positive (be in favor of it) Because_________________________________________________________________ the author does not state any personal opinion about cloning.

1. In the second paragraph, the word “straightforward” means ____. Challenge yourself 1. In the second paragraph, the word “straightforward” means ____. A. uncomplicated B. honest C. frank D. difficult 2.What is the writing style? Expositive （说明性的） B. Descriptive (描述性的） C. Argumentative （议论性的） D. Narrative （叙述性的）

Consolidation copy major commercial species birth moral religious Clone is a way of making an exact_______ of another animal or plant. Cloning have two ______ uses. Firstly, gardeners use it all the time to produce _____________quantities. Secondly, it is valuable for research on new plant _________and for medical research on animals. But through the _________and death of Dolly, cloning has a lot of problems. On the other hand, we know cloning is controversial in some countries for ________and ___________reasons. copy major commercial species birth moral religious

Homework Read the passage again and find out all the noun clauses in the text. Write a short passage according to the following topic. Should human cloning be allowed?