Thefirstparagraphisintendedto________.
A、suggestthatself-medicationhasalonghistoryA
暫無解析
Whyaretoday'soldermiddle-agedandelderlybecomingthenewwinners?
Part V Writing
寫作指導
這是一篇描寫文 (Description)。用通俗的話說，描寫文就是用文字給人物、地點、景物畫象。一篇描寫文主要是通過所感受的細節——所見所聞發展而來的。在寫人 時，不僅僅要用細節描寫其外貌，而要注重通過他的言行來表現其人物性格、思想和品德，更要抓住他區別于他人的性格特點，這樣就容易給讀者留下深刻的印象。短文的第一、二段敘述故事發生的時間、地點，故事發生的原因及故事所涉及的人物。文章的三、四、五段描寫的是人物的外貌，穿著及性格特點。通過對人物言行 的簡單描寫來揭示主人翁的助人為樂的高尚精神。短文的最后一段，要用一句話概括作者對主人翁的看法： A good guy。文章有描述，有議論，要加敘加議，有血有肉，上下文連貫要緊密，首尾要呼應，人和事要給人們留下深刻印象。
Directions:
In thissection,you will hear two long conversations.At the end of each conversation, you will hear some questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D. Then mark the corresponding letter on the Answer Sheet with a single line through the centre.
Questions 1 to 4 are based on the conversation you have just heard.
1、 A. The collection of precious metals.
B. A standard measuring weight unit.
C. The value of precious metals.
D. A new metric system of measurement.
2、 A. Checking the accuracy of scales.
B. Calculating the density ofmetals.
C.Observing humidity of atmosphere.
D.Measuring amounts of rainfall.
3、 A. It has been rusty. B. It was not scientific.
C. It was of low quality. D. It was out of date.
4、 A. It is very cheap. B. It is difficult to say.
C. It is too expensive. D. It is reasonable.
Questions 5 to 8 are based on the conversation you have just heard.
5、 A. She is busy writing a biological article.
B. She is busy with a program about endangered species.
C. She is busy reading some books on economics.
D. She is busy with two research papers.
6、 A. Some species are impossible to conserve.
B. People are less conscious of saving endangered species.
C. Funds are difficult to get to conserve endangered species.
D. It is difficult to determine which animals are endangered.
7、 A. The relatives of the tailed toad have been extinct.
B. The varieties of the tailed toad are helpful to the research ofevolution.
C.If the tailed toad is well conserved,many other species will be better saved.
D.If the tailed toad was extinct,some myth about evolution would lose.
8、 A. The man is busy preparing the research paper.
B. The woman should hand two papers in on the same day.
C. The man is reading a hook only about biology.
D. The woman is glad to make a decision on which animal to save.
Thematterisnottobe____.
We can begin our discussion of “population as global issue” with what most persons mean when they discuss “the population problem”: too many people on earth and a too rapid increase in the number added each year. The facts are not in dispute, It was quite right to employ the analogy that likened demographic growth to “a long, thin powder fuse that burns steadily and haltingly until it finally reaches the charge and explodes.”
To understand the current situation, which is characterized by rapid increases in population, it is necessary to understand the history of population trends. Rapid growth is a comparatively recent phenomenon. Looking back at the 8,000 years of demographic history, we find that populations have been virtually stable or growing very slightly for most of human history. For most of our ancestors, life was hard, often nasty, and very short. There was high fertility in most places, but this was usually balanced by high mortality. For most of human history, it was seldom the case that one in ten persons would live past forty, while infancy and childhood were especially risky periods. Often, societies were in clear danger of extinction because death rates could exceed their birthrates. Thus, the population problem throughout most of history was how to prevent extinction of the human race.
This pattern is important to notice. Not only does it put the current problems of demographic growth into a historical perspective, but it suggests that the cause of rapid increase in population in recent years is not a sudden enthusiasm for more children, but an improvement in the conditions that traditionally have caused high mortality.
Demographic history can be divided into two major periods: a time of long, slow growth which extended from about 8,000 BC.till approximately AD. 1650. In the first period of some 9600 years, the population increased from some 8 million to 500 million in 1650. Between 1650 and the present, the population has increased from 500 million to more than 4 billion. And it is estimated that by the year 2000 there will be 6.2 billion people throughout the world. One way to appreciate this dramatic difference in such abstract numbers is to reduce the time frame to something that is more manageable. Between 8000BC and 1650, an average of only 50,000 persons was being added annually to the world’s population each year. At present, this number is added every six hours. The increase is about 80,000,000 persons annually.
1.Which of the following demographic growth pattern is most suitable for the long thin powder fuse analogy?
A.A virtually stable or slightly decreasing period and then a sudden explosion of population.
B.A slow growth for a long time and then a period of rapid, dramatic increase.
C.Too many people on earth and a few rapid increase in the number added each year.
D.A long period when death rates exceeds birthrates and then a short period with higher fertility and lower mortality.
2.During the first period of demographic history, societies were often in danger of extinction because___.
A.only one in ten persons could live past 40.
B.there was higher mortality than fertility in most places.
C.it was too dangerous to have babies due to the poor conditions.
D.our ancestors had little enthusiasm for more children.
3.Which statement is true about population increase?
A.There might be an increase of 2.2 billion persons from now to the year 2000.
B.About 50,000 babies are born every six hours at present.
C.Between 8000 BC and the present, the population increase is about 80,000,000 persons each year.
D.The population increased faster between 8000BC and 1650 than between 1650 and the present.
4.The author of the passage intends to___.
A.warn people against the population explosion in the near future.
B.compare the demographic growth pattern in the past with that after 1650.
C.find out the cause for rapid increase in population in recent years.
D.present us a clear and complete picture of the demographic growth.
5.The word “demographic” in the first paragraph means___.
A.statistics of human.
B.surroundings study.
C.accumulation of human.
D.development of human.
