Large companies need a way to reach the savings of the public at large. The same problem, on a smaller scale(小规模地), faces practically every company trying to develop new products and create new jobs. There can be little hope of raising the money needed from friends and people we know, and while banks may agree to provide short-term finance(资金), they are generally unwilling to provide money, for long-term projects. So companies turn to the public, inviting people to lend them money, or take a share(股份) in the business in exchange for a share in future interests. This they do by issuing(发行) stocks(股票) and shares in the business through the Stock Exchange. By doing so they can put into circulation(流通) the savings of single persons and institutions, both at home and abroad.
When the saver(储蓄者) needs his money back, he does not have to go to the company with whom he originally placed it. Instead he sells his shares through a stockbroker(证券经纪人) to some other saver who is seeking to invest his money.
Many of the services needed both by industry and by each of us are provided by the government or by local organizations. Without hospitals, roads, electricity, telephones and railways, this country could not work. All these require continuous spending on new equipment and new development if they are to serve us properly, requiring more money than it is raised through taxes alone. The government, local organizations and nationalized industries therefore frequently need to borrow money to finance(给…提供资金) major capital spending, and they, too, come to the Stock Exchange.
There is hardly a man or woman in this country whose standard of living does not depend on the ability of his or her employers to raise money to finance new development. In one way or another his new money must come from the savings of the country. The Stock Exchange exists to provide a channel through which these savings can reach those who need finance.

  1. 1.

    The money which enables these companies to go ahead with their projects is _______.

    1. A.
      exchanged for part ownership in the Stock Exchange
    2. B.
      raised by the selling of shares in the companies
    3. C.
      repaid to its original owners as soon as possible
    4. D.
      invested in different companies in the Stock Exchange
  2. 2.

    All the basic services on which we depend are _______.

    1. A.
      unable to provide for the needs of the population
    2. B.
      financed wholly by rates and taxes
    3. C.
      in constant need of financial support
    4. D.
      run by the government or local organizations
  3. 3.

    The Stock Exchange makes it possible for the government, local organizations and nationalized industries _______.

    1. A.
      to make certain everybody saves money
    2. B.
      to borrow as much money as they wish
    3. C.
      to make certain everybody lends money to them
    4. D.
      to raise money to finance new development
  4. 4.

    The underlined word invest probably means _______.

    1. A.
      give more money with
    2. B.
      provide less money with
    3. C.
      borrow less money with
    4. D.
      make more money with

An annoying problem for humans, who like to boast (夸耀) about all the distant planets and moons we have explored, is that we've never taken a good look right under our noses. The inside of the earth is relatively close, but how can we get there?
The deepest oil well enters a mere six miles into the crust (地壳) (the center of the earth is about 4,000 miles deeper). Russian scientists dug the deepest hole in Siberia, but bottomed out at about 7.5 miles below the surface. The Mohole project, a U.S. plan in the 1950s, called for drilling a hole 25 miles down to the boundary between the hard rocks of the crust and the soft mantle (地幔). Sadly the project involved government supporting.
It gets harder and harder to drill deep into the earth because rocks get softer and softer. Hard but easily broken at the surface, rocks become plastic at depth, and the pressure caused by the weight of the overlaying crust ---  about 52,800 pounds per square inch at a depth of ten miles, makes further drilling impossible.
What little we know about the inside of the earth (like the fact that there's a crust, a mantle, and a core) comes from indirect evidence, such as the analysis of earthquakes.
So maybe it's time for a thorough new method to explore the earth's inside. Scientist David Stevenson says we should forget about drilling holes. Instead, we should open a crack (裂缝).
Stevenson suggests digging a crack about a half mile long, a yard wide, and a half mile deep (not with a shovel) but with an explosion on the scale of a nuclear bomb. Next, he'd pour a few hundred thousand tons of molten (熔化的) iron into the crack, along with a robot. The iron, thicker than the surrounding crust, would move downward at about 16 feet per second, carrying the robot with it and opening the crack deeper and deeper. The iron mass would drop for about a week and 2,000 miles to the outer edge of the earth core, the robot sending out data to the surface.
Stevenson compares his idea to space exploration. "We're going somewhere we haven't been before,"he says. "In all possibility, there will be surprises.”
This idea can probably be put in the drawer marked with Isn't Going To Happen. The robot would have to survive temperatures that would melt pretty much anything. But Stevenson's idea may inspire a new look at an old problem. Great things can come from what seems like impossible ideas.

  1. 1.

    Going inside the earth is _____ than going into space.

    1. A.
      more interesting
    2. B.
      more possible
    3. C.
      easier
    4. D.
      more challenging
  2. 2.

    How deep have we gone into the earth until now?

    1. A.
      6 miles.
    2. B.
      4,000 miles.
    3. C.
      7.5 miles.
    4. D.
      25 miles.
  3. 3.

    Which of the following is TRUE about David Stevenson's idea?

    1. A.
      It is an inspiring but not practical idea now.
    2. B.
      It is a practical proposal that has come into use now.
    3. C.
      It is a good proposal that will soon be put into practice.
    4. D.
      It is a false theory that cannot be carried out at all.
  4. 4.

    What might be the most suitable title for the text?

    1. A.
      An Annoying Problem for Humans
    2. B.
      To the Center of the Earth
    3. C.
      The Mohole Project
    4. D.
      David Stevenson's Proposal

Some people say that the best way to reduce the size of your waist is to do stomach exercise. Many people believe that when specific muscles are exercised, the fatty tissues (组织) in the immediate area are burned up. The truth is that exercise burns fat from all over the body and not from one specific area. Of course, if you reduce the fat throughout your body, you will certainly see results around your waist too.
Some people believe that you need to exercise twice a week in order to keep a sufficient level of physical fitness. However, studies directed by American scientists show that unexercised muscles lose their strength very quickly. Within 48 to 72 hours, you must use the muscles again to reestablish (重建) the good physical effects. And what does that mean to you? American scientists concluded that while daily exercise is most helpful, exercising every other day or three days a week will keep a sufficient level of physical fitness.
Is it true that you burn more calories running one mile than walking the same distance? The answer is no. The truth is that you use the same amount of energy whether you walk or run the mile, since in both cases you are moving the same weight the same distance. The speed does not matter. Of course, if you run rather than walk for 30 minutes, you will cover more distance, and therefore burn more calories.
If your breathing doesn’t return to normal within 5 minutes after you finish exercising, you have exercised too much. Five minutes or so after exercising, your breathing should be normal, your heart shouldn’t be beating loudly, and you shouldn’t be tired.

  1. 1.

    If you want to reduce the fat around your waist, you should ____.

    1. A.
      do stomach exercise
    2. B.
      exercise the waist
    3. C.
      exercise all the muscles of your body
    4. D.
      run fast for 30 minutes
  2. 2.

    From the second paragraph, we learn that ____.  

    1. A.
      we only need to exercise twice a week
    2. B.
      we should exercise three times a week
    3. C.
      muscles lose their strength after 48 hours
    4. D.
      we should exercise every other day, or three days a week
  3. 3.

    It can be inferred from the third paragraph that _________ .  

    1. A.
      you will lose more weight running one hour than walking one hour
    2. B.
      whether you run one mile or walk the same distance, you use the same amount of energy
    3. C.
      you will lose more weight running one mile than walking the same distance
    4. D.
      both A and B
  4. 4.

    If you have exercised too much, _______. 

    1. A.
      your breathing will take longer than 5 minutes to return to normal after you finish exercising
    2. B.
      your breathing will return to normal within 5 minutes after finishing exercising
    3. C.
      your heart will not be beating loudly
    4. D.
      you will be too tired to move
  5. 5.

    This passage tells us that _________.  

    1. A.
      it is better to do more running than walking
    2. B.
      the more exercise you do, the healthier you will be
    3. C.
      the unexercised muscles must be used again within 48 to 72 hours
    4. D.
      in order to lose weight, you have to run fast
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