1.Is it possible for a writer to start writing on impulse and then catch some good ideas flashing into his mind during the process of writing? Cite examples to illustrate your point.
答案：
The answer is yes. But the question is open to discussion. Impulse can not stay long without careful thinking. Writing is also an art and art is cultivated.
2.How does a writer produce good stories? Do you believe that a genius is a person who is able to accomplish things without going through any hardship?
答案：
A writer needs creative power in producing good stories. He has to make  painstaking efforts in writing. Creative power needs cultivation and genius alone may not work in  creating original stories.
3.Do you think it is true that a good story is not written but rewritten? Why or why not?
答案：
In most cases a good story is rewritten. But there are writers who think very carefully about the story to be written before they start writing. Careful thinking and rewriting are of the same nature here.
1.What is the appropriate relationship between speed reading and effective reading?
　答案
    Speed reading and effective reading are mutually related. It is understandable to want to read faster, but it is unwise to want to read everything at top speed. The best reader can read very rapidly, but he or she adjusts the rate according to purpose to the kind of material. The English teacher is to help students to read at rates that are appropriate to the purpose for reading and to the demands of the materials.
2. How are motivations important in reading well?
答案
Motivations are very important in reading well. The “best” students in school can also be reluctant readers. Only when one wants to read well can one hope to read well. But this is a complicated issue. The teacher should help students become highly motivated in reading. Sometimes a book is not taught in a challenging way, or a teacher's questions in class discussion or in individual conferences fail to go beyond simple recall, and a student may feel that the book has very limited value. Often too much is said about a book. And that which is said is sometimes so trivial that it wastes a student's time. So the issue involves both teaching and learning and affects the efficiency of reading.
1.It's been often assumed that the world population is increasing beyond the earth's capacity, but the view in the article is just the opposite. Why does the writer make such a hypothesis? Are you persuaded to follow this view? Why?
答案：
The author's hypothesis is based on the following facts: the growth rate of the world population is now only one percent a year; 44 percent of the world's people live in countri
es where fertility has already fallen below the replacement rate, and fertility is falling almost everywhere else. The reason is that population changes depend on the values people hold. As long as the modern value of saving efforts and money by raising fewer children remains widespread, the world population will not stop declining.
(Of these views, you may have your own judgment, discuss with your partners.)
2.What do you think of the relation between human values and population?
答案：
The author suggests that human values is one of the determining factors of population fluctuation. Modern way of life has led to the declination in population in the modernized counties, and whether the world population will grow or dwindle depends on the values people hold in the future. You may agree, partly agree or disagree to the author's view. Still you may also put forward new views regarding the relation between human values and population.
1. Do you think what Asimov says in the article is only a warning?
答案
What Asimov says in the article is not only a warning, but also the truth. As a futurist, Asimov is highly aware of what our planet might be and he shows great concern over the future of global, telling us what the whole might be if we don't take some measures to control the population. The significance of this piece of writing , I think, is to draw adequate attention from the public. If the population continues to increase at such a rate as Asimov describes, human beings would destroy themselves in the future.
2. What can we do to limit the growth of population?
答案
Generally speaking, there is only one efficient and practical way to limit the growth of population. That is to practice the family planning program. China has been practicing this program all these years and it has achieved a good result. Another way of limiting the gro
wth of population is to encourage people not to have children. Can you figure out some better ways? War, famine or epidemics? No, everyone hopes such disasters won't happen.
1.What is “genetically modified food”? Are you in favor of consuming GM food? Why?
答案：
Genetically modified food is made from crops and vegetables genetically changed by scientists. GM food has aroused great dissentions among governments, scientists, farmers, and consumers. On one hand are the high quality crops due to the gene technique, on the other hand are the potential risks.（ While giving your ideas, consider the interests of different peoples.）

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