Today much rubber is synthetic. It
would seem that there would be less opportunity for accidents in creating this
artificial product. Nevertheless the first synthetic rubber was produced by
accident, an even stranger accident than that which happened to Charles
Goodyear.
In 1917, Professor Harry L. Fisher, a teacher of
organic chemistry at Columbia University, was asked by the United States War
Department to prepare chemical compounds, The War Department planned to test
these compounds in order to decide how effective they would be against an enemy.
Fisher was given a list of 20 such compounds, and number 13 on the list was a
chemical made with sulfur. Some people think that is an unlucky number, and
Fisher thought it was when he first heated the chemicals in his laboratory The
result was a bad - smelling, sticky substance that certainly had
A. the first synthetic rubber was produced by Charles Goodyear
B. if it had not been for a traffic accident, we would not have had synthetic rubber
C. more need for rubber helped the development of synthetic rubber
D. the first synthetic rubber came into being totally unexpectedly
[单项选择]A. The promotions and higher salaries bring increased responsibilities.
B. There are more opportunities to be promoted in government agencies.
C. Businesses and organizations are reluctant to promote their employees.
D. Once a higher position becomes vacant, more responses from the public will be heard.
[单项选择]The actual cost of the building was much higher than our original ______.
A. consideration
B. judgment
C. estimate
D. plan
[单项选择] Passage Two
Human needs seem endless. They might be
regarded as making up several levels. When there is enough money to satisfy one
level of needs, another level appears.
The first and most basic
level of needs involves food. Once this level is satisfied, the second level of
needs, clothing and some sort of shelter, appears. By the end of World War Ⅱ ,
these needs were satisfied for a great majority of Americans. Then a third level
appeared. It included such items as automobiles and new houses.
By 1957 or 1958 this third level of needs was fairly well satisfied. Then,
in the late 1950s, a fourth level of needs appeared: the "life-enriching" level.
While the other levels involve physical satisfaction, that is, the feeding,
comfort, safety, and transportation, this level stresses mental needs for
recognition, achievement, and happiness. I
A. he has saved up enough money
B. he has grown dissatisfied with his simple shelter
C. he has satisfied his hunger
D. he has learned to build houses
[单项选择]
Higher education and our university system seem to be in the news constantly. John O’Leary, editor of the Good University Guide, thinks that universities may secretly be pleased by falling numbers.
Universities all over the country are preparing themselves for the possibility of empty places when fees are ￡9,000 a year. At the same time, some of the UK’s best-known academics are staking their reputations--and some of their own money--on students paying ￡18,000 a year.
Why it should cost ￡18,000 a year to provide the cheapest subjects in higher education with visiting lecturers and few of the facilities offered by other universities is a mystery. But the big names and exclusivity might attract enough rich overseas students to see it through what will surely be a difficult opening period.
There will not be enough of either to comfort all the existing universities. Those at the top can afford a 10 per cent drop in applications and still have plent
A. John O’Leary has just released the latest issue of Good University Guide.
B. Universities are getting ready for not having enough students next year.
C. Some of the most famous scholars in the UK are found taking bribes.
D. The tuition fee for college has been proposed to rise to ￡18,000 a year.
[简答题]To improve higher education, the most important thing we should do is to produce ______.
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