It is only during the last few years that man has generally realized that in the world of nature a balance exists between all forms of life. No living thing can exist by itself. It is part of a system in which all forms of life are joined together. If we change one part of the nature order, this will almost certainly bring about changes in some other parts.
　　The cutting of forests reduced the supply of oxygen. The killing of weeds and insects by chemicals led to the wide-spread poisoning of animals and birds. The throwing of waste products into the ocean hurt life in the sea, while waste gases changed the chemical balance of the atmosphere and shut out some of the sun’s necessary life-giving rays.
　　And so we could go on adding more examples until in despair(绝望) we might feel like giving up the struggle to control these harmful human activities. Man is very clever at changing the world around him to satisfy his immediate needs, but he is not so clever at looking far ahead, or at thinking about what the future results of his action might be. Man may well destroy himself because of his silly action.
【小题1】The first paragraph tells us that _____.

It is only during the last few years that man has generally realized that in the world of nature a balance exists between all forms of life. No living thing can exist by itself. It is part of a system in which all forms of life are joined together. If we change one part of the nature order, this will almost certainly bring about changes in some other parts.

　　The cutting of forests reduced the supply of oxygen. The killing of weeds and insects by chemicals led to the wide-spread poisoning of animals and birds. The throwing of waste products into the ocean hurt life in the sea, while waste gases changed the chemical balance of the atmosphere and shut out some of the sun’s necessary life-giving rays.

　　And so we could go on adding more examples until in despair(绝望) we might feel like giving up the struggle to control these harmful human activities. Man is very clever at changing the world around him to satisfy his immediate needs, but he is not so clever at looking far ahead, or at thinking about what the future results of his action might be. Man may well destroy himself because of his silly action.

1.The first paragraph tells us that _____.

2.In the second paragraph the examples given are used to prove that _____.

3.The last paragraph suggests that in order to get his immediate benefits(利益) _____.

4.Which of the following is true according to the passage?

It is only during the last few years that man has generally realized that in the world of nature a balance exists between all forms of life. No living thing can exist by itself. It is part of a system in which all forms of life are joined together. If we change one part of the nature order, this will almost certainly bring about changes in some other parts.
The cutting of forests reduced the supply of oxygen. The killing of weeds and insects by chemicals led to the wide-spread poisoning of animals and birds. The throwing of waste products into the ocean hurt life in the sea, while waste gases changed the chemical balance of the atmosphere and shut out some of the sun’s necessary life-giving rays.
And so we could go on adding more examples until in despair(绝望) we might feel like giving up the struggle to control these harmful human activities. Man is very clever at changing the world around him to satisfy his immediate needs, but he is not so clever at looking far ahead, or at thinking about what the future results of his action might be. Man may well destroy himself because of his silly action.

1. 1.

   The first paragraph tells us that _____.

   1. A.
      all living things in nature depend on each other
   2. B.
      everything in nature can’t exist without the help of man
   3. C.
      man has known the importance of the balance of nature for a long time
   4. D.
      no living thing can live naturally
2. 2.

   In the second paragraph the examples given are used to prove that _____.

   1. A.
      all forms of life belong to a system in which all the parts can be changed for one another
   2. B.
      it is only during the last few years that man has generally known the balance of nature
   3. C.
      there are some living things which can exist by themselves without change
   4. D.
      we can’t change one form of life without destroying the balance of nature
3. 3.

   The last paragraph suggests that in order to get his immediate benefits(利益) _____.

   1. A.
      man is always anxious to control his activities within limits
   2. B.
      man is always too eager in planning for distant future
   3. C.
      man often fails to think about their future results of his action
   4. D.
      man often feels that he will have to give up in despair
4. 4.

   Which of the following is true according to the passage?

   1. A.
      Cutting down woods does little harm to human beings.
   2. B.
      Man has to pay much more attention to the future results of his present action.
   3. C.
      Oxygen comes from forests.
   4. D.
      The passage tells us to try our best to get as much as possible immediately.

It is often said that politeness costs nothing．In fact，it seems that a little more courtesy could save businesses￡5 billion every year．

Frequently hearing the phrase “thank you” or “well done” means the same to staff as a modest pay rise，researchers say．

Praise and encouragement also makes employees more likely to work hard and stay in their jobs，saving on the cost of finding replacements．

A third of 1,000 workers surveyed by consulting firm White Water Strategies said they did not get thanked at all when they did well—and a further third said they were not thanked enough．

In both cases，staff said they felt undervalued，meaning they were less likely to exert themselves and were more likely to look for employment elsewhere．

The net result is around ￡5.2 billion in lost productivity from employees who would raise their game if they felt more appreciated，White Water claimed According to the company，praising staff has the same motivational kick as a 1 per cent pay rise—and works out much cheaper for bosses．

Three out of four employees said that regular acknowledgement by their boss was important to them，but only a quarter said they were actually given as much praise as they felt they needed．

The survey found that those in blue-collar and manual jobs were less likely to be given any recognition for doing well．

In regional terms，Scottish staff felt most undervalued．Four out of ten workers said they were never thanked and eight out of ten said they would like more praise．However，workers in the North-East are less impressed by being buttered up by the boss，as only 69 per cent said they felt the need to be told “well done” regularly．

Older employees and women need the most reassurance，according to psychologist Averil Leimon，a director of White Water Strategies．She said that words of praise did more than create a pleasant place to work—they could even boost profits．

51．The second paragraph means that_____________.

       A．employees ask for high pay instead of hearing “thank you” or “well done”

       B．bosses always think highly of their employees’ work

       C．bosses’ praise and encouragement are important to workers

       D．bosses should praise their workers from time to time

52．Why praise and encouragement are needed according to the passage?

       A．Most bosses feel it necessary

       B．Most workers didn’t work hard enough.

       C．Most bosses can make money from praise and encouragement

       D．Most workers will work harder and stay in their jobs from praise and encouragement.

53．According to tiffs passage，the majority of staff felt______________．

    A．there were thanked enough         B．they were undervalued

    C．they got satisfactory pay          D．they didn’t need encouragement

54．Which of the following is TRUE according to the passage?

    A．Blue-collar and manual workers need more regular acknowledgement by their bosses．

B．A third of the workers surveyed by White Water Strategies never got thanked at all when

they did well．

    C．Old employees and women do not need to be appreciated as much as the young．

    D．Fewer than 20％ of Scotiish felt that they never got thanked．

55．The main idea of the passage is that___________

    A．praise and encouragement may help employees work better

    B．workers are always demanding more praise and encouragement

    C．bosses in Scotland usually praise and encourage their staff enough

    D．if undervalued employees will certainly look for employment elsewhere