The author's main purpose in writing the passage is to
The author writes this passage to
The author in this passage in tends to
To argue a belief，文章作者摆事实，讲道理，论证自己的观点。
To inform people of something，文章作者只介绍和传递信息，并不发表自己看法。
To illustrate the significance/importance，文章作者会从多方面阐述意义或重要性。
To warn people of certain danger，文章作者会分析该事物的后果，危害性。
To analyse the causes of something，文章作者会从间接和直接或平行几方面分析原因或因素。
To describe certain problems/phenomena，文章作者会用事实、数据、例证或生动的形象描写。
To give people a piece of advise，文章作者用祈使句较多。告诉方法、做法等。
To propose a solution，文章作者会阐明某种建议或解决方法的可行性、优点等。
Most individual stockmarket investors, particularly in Asia, are speculators who want to pit their wits against the market at large. They share British entrepreneur Jim Slater's view that "a long-term investment is a short-term investment gone wrong," and look for the big,quick profits which can be made when share prices are driven up by important new information about a company's business, for instance the announce- ment of a takeover bid.
Official market-moving announcements of this kind are frequently foreshadowed by unofficial rumours. Buying or selling on the basis of such "inside" information vio- lates the rules of most stockmarkets, but is widely practised and hard to document. Sometimes a rumour may be spread deliberately for the purpose of artificially raising a share price, usually by investors who hold shares which they want to sell. This is the so-calledramp .
Speculative situations tend to produce the highest rewards, but they also carry with them the highest risk.the profits made by the first people into a ramp are only as big as the losses made by those who get in last. The merit of analysing companies be- fore plunging headlong into buying their shares is that it helps limit the "downside”of any investment--the amount of money you stand to lose if your investment goes wrong. Companies which have good saleable assets and steady cash earnings may fall periodically out of favour with the stockmarket,but they are unlikely to collapse alto-gether,and they are likely sooner or later to regain value.
This investor who bothers to verify that the company in which he is speculating is not fundamentally worthless has the reassurance that even a bad short-term buy should prove to have some long-term value.
The author in this passage intends to
A. warn people not to buy stocks
B. encourage people to go to stockmarket
C. advise people to be cautious of buying or selling stocks
D. tell people how to buy and sell stocks
第二段是说小道消息的作用，有时故意散布谣言，造成股价大跌大涨。第三段是说股票市场这种情况以及不正当的投机行为可能一下子带来巨大的暴利，但也具有很大的风险。所以在买之前要了解该公司的业绩，才不会输光。尤其是最后一段是直接对投资者说的：The investor who bothers to veri-fy that the company in which he is speculating……has the reassurance that even a bad short-term buy should prove to have some long-term value只有核实和掌握该公司的情况，才能在做短线买卖中，获得长期投资的收益。
显然按照作者的口气和论述，我们可以推断作者介绍股票市场中这种独特的投机情况，是要投资者小心谨慎。所以C项ad-vise people to be cautious of buying or selling stocks是正确的答案。
Normally a student must attend a certain number oi" courses in order to graduate, and each course which he attends gives him a credit(学分)which he may count to- wards a degree. In many American universities the total work for a degree consists of thirty-six courses each lasting for one semester(学期). A typical course consists of three classes per week for fifteen weeks; while attending a university a student will probably attend four or five courses during each semester. Normally a student would expect to take four years attending two semesters each year. It is possible to spread the period of work for the degree over a longer period. It is also possible for a student to move between one university and another during his degree course, though this is not in fact done as a regular practice.
For every course that he follows a student is given a grade, which is recorded, andthe record is available for the student to show to prospective employers. All this impo- ses a constant pressure and strain of work, but in spite of this some students still find time for great activity in student affairs. Elections to positions in student organizations arouse much enthusiasm. The effective work of maintaining discipline is usually per- formed by students who advise the academic authorities. Any student who is thought to have broken the rules, for example, by cheating has to appear before a student court. With the enormous numbers of students, the operation of the system does in- volve a certain amount of activity. A student who has held one of these positions of au- thority is much respected and it will be of benefit to him later in his career.
Normally a student would at least attend classes each week.
The high point in railroad building came with the construction of the first trans- continental system. In 1862 Congress authorized two western railroad companies to build lines from Nebraska westward and from California eastward to a meeting point, so as to complete a transcontinental crossing linking the Atlantic seaboard with the Pa- cific. The Government helped the railroads generously with money and land. Actual work on this project began four years later. The Central Pacific Company, starting from California, used Chinese labor, while the unio Pacific employed crews of Irish labourers. The two groups worked at remarkable speed, each trying to cover a greater distance than the other. In 1869 they met at a place called Promontory in what is now the state of Utah. Many visitors came there for the great occasion. There were joyous celebrations all over the country, with parades and the ringing of church bells to honor the great achievement.
The construction of the transcontinental railroad took
A. 9 years
B. 7 years
C. 4 years
D. 3 years