【摘要】If the population of the earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the planet.By the middle of the 21st century,if present trends continue, we will have used up all the oil that drives our cars,for example.Even if scientists develop new ways of feeding the human race,the crowded conditions on earth will make it necessary for lus to look for open space somewhere else. But none of the other planets in our solar system are capable of supporting life at present. One possible solution to the problem, however,has recently been suggested by American scientist, Professor Carl Sagan.
Sagan believes that before the earth's resources are compleetely exhausted it will be possible to change the atmophere of Venus and so create a new world almost as large as earth itself. The difficult is that Venus is much hotter than the earth and there is only a tiny amount of water there.
Sagan proposes that algae organisms that can live in extremely hot or cold atmospheres and at the same time produce oxygen,should be bred in condition similar to those on Venus.As soon as this has been done, the algae will be placed in small rockets. Spaceship will then fly to Venus and fire the rockets into the atmosphere .In a fairly short time, the alge will break down the carbon dioxide into oxygen and carbon.
When the algae have done theri work, the atmosphere will become cooler,but befor man can set foot on Venus it will be neccessary for the oxygen to produce rain. The surface of the planet will still be too hot for man to land on it but the rain will eventually fall and in a few years something like earth will be reproduced on Venus.
1.Inte long run, the most insoluble problem caused by population growth on earth will probably be the lack of ______.
a.food
b.oil
c.space
d.resources
2.Carl Sagan believes that Venus might be colonized from earth because _____
a.it might be possible to change its atmosphere
b.its atmosphere is the same as the earth's
c.there is a good supply of water on Venus
d.the days on Venus are long enough
3.On Venus there is a lot of ________.
a.water
b.carbon dioxide
c.carbon monoxide
d.oxygen
4.Algae are plants that can____.
a.live in very hot temperatures
b.live in very cold temperatures
c.manufacture oxygen
d.all of the above
5. Man can land on Venus only when_______.
a.the algae have done their work
b.the atmosphere becomes cooler
c.thereis oxygen
d.it rains there
答案：cabdd
There are three kinds of goals: short-term,medium-range and long-term goals.Short-range goals are those that usually deal with current activities,which we can apply on a daily basis.Such goals can be achieved in a week or less,or two weeks,or possible months.It should be remembered that just as a building is no stronger than its foundation ,out long-term goals cannot amount to very munch without the achievement of solid short-term goals.Upon completing our short-term goals,we should date the occasion and then add new short-term goals that will build on those that have been completed.
The intermediate goals bukld on the foundation of the short-range goals.They might deal with just one term of school or the entire school year,or they could even extend for several years.Any time you move a step at a time,you should never allow yourself to become discouraged or overwhelmed. As you complete each step,you will enforce the belief in your ability to grow adn succeed.And as your list of completion dates grow,your motivation and desire will increase.
Long-range goals may be related to our dreams of the future. They might cover five years or more. Life is not a static thing.We should never allow a long-term goal to limit us or our course of action.
1.Our long-term goals mean a lot__.
a.if we complete our short-range goals
b.if we cannot reach solid short-term goals
c.if we write down the dates
d.if we put forward some plans
2.New short-term goals are bulid upon__.
a.two years
b.long-term goals
c.current activities
d.the goals that have been completed
3.When we complete each step of our goals ,__.
a.we will win final success
b.we are overwhelmed
c.we should build up confidence of success
d.we should strong desire for setting new goals
4.Once our goals are drawn up,__.
a.we should stick to them until we complete them
b.we may change our goals as we have new ideas and opportunities
c.we had better wait for the exciting news of success
d.we have made great decision
5.It is implied but not stated in the passage that ___.
a.those who habe long-term goals will succeed
b.writing down the dates may discourage you
c.the goal is only a guide for us to reach our desination
d.every should have a goal
答案：adcbc
The economy of the United states after 1952 was the econnomy of a well-fed,almost fully employed people. Despit occasional alarms, the country escaped any postwar depression and lived in a state of boom. A n economic survey of the year 1955, a typical year of the 1950’s, may be typical as illustrating the rapid economic growth of the decade. The national output was value at 10 percent above that of 1954 (1955 output was estimated at 392 billion dollars). The production of manufacturers was about 40 percent more than it had averaged in the years immediately following World War 2. The country’s business spent about 30billion dollars for new factories and machinery. National income available for spending was almost a third greater than it had been it had been in 1950. Consumers spent about 256 billion dollars; that is about 700 million dollars a day ,or about twenty-five million dollars every hour , all round the clock. Sixty-five million people held jobs and only a little more than two million wanted jobs but could not find them . Only agriculture complained that it was not sharing in the room. To some observers this was an ominous echo of the mid-1920’s . As farmer’s shre of their products declined , marketing costs rose. But there were , among the observers of the national economy, a few who were not as confident as the majority . Those few seemed to fear that the boom could not last and would eventually lead to the oppsite-depression.
1. What is the best title of the passage?
a. The Agriculatural Trends of 1950’s
b. The Unemployment Rate of 1950’s
c. U.S. Economy in the 50’s
d. The Federal Budget of 1952
2. In Line 4 , the word “boom” could best be replaced by______.
a. nearby explosion
b. thunderous noise
c. general public support
d. rapid economic growth
3. It can be inferred the national from the passage that most people in the United States in 1955 viewed the national economy with an air of _________.
a. confidence
b. confusion
c. disappointment
d. suspicion
4. Which of the following were LEAST satisfied with the national economy in the 1950’s?
a. Economists
b. Frmaers
c. Politicians
d. Steelworkers
5. The passage states that incom available for spending in the U.S. was greater in 1955 than in 1950 . How much was it ?
a. 60%
b. 50%
c. 33%
d. 90%
答案：cdabcWomen are also underrepresented in the administration and this is because there are so few women full professors. In 1985,Regent Beryl Milburn produced a report blasting the University of Texas System adminitration for not encouraging women.The University was rated among the lowest for the system.In a 1987 update ,Milburn commended the progress that was made and called for even more improvement.
One of the positive results from her study was a System-wide program to inform women of available administrative jobs.
College of Communication Associate Dean Patrica Witherspoon,said it is important that woman be flexible when it comesto relocating if they want to rise in the ranks.
Although a woman may face a chilly climate on campus , many times in order for her to succeed , she must rise above the problems around her and concentrate on her work.
Until women make up a greater percentage of the senior positions in the University and all academia,inequities will exist.
"Women need to spend their energies and time doing scholarly activities that are important here at the University." Spirduso said. "If they do that will be successful in this system.If they spend their time in little groups mourning the sexual discrimination that they think exists here, they are wasting valuable study time."
1.According to Spirduso,women need to ____.
a.produce a report on sexual discrimination
b.call for further improvement in their working conditions
c.spend their energies and time fighting against sexual discrimination
d.spend more time and energy doing scholarly activities
2.From this passage ,we know that _____.
a.there are many women full professors in the University of Texas
b.women play an important part in adminitrating the University
c.the weather on the campus is chilly
d.women make up a small percentage of the senior positions in the University
3.Which of the following statements is true?
a.the number of women professors in the University in 1987 was greater than that of 1985
b.the number of women professors in the University in 1987 was smaller than that of 1985
c.the number of women professors was the same as that of 1985
d.more and more women professors thought that sexual discrimination did exit in the University
4.One of the positive results from Milburn's study was that _____.
a.women were told to con centrate on teir work
b.women were given information about available administrative jobs
c.women were encouraged to take on all the administrative jobs in the Unversity
d.women were encouraged to do more scholarly activities
5. The title for this passage should be _______.
a.The University of Texas
b.Milburn's Report
c.Women Professors
d.Sexual Discrimination in Academia
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