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Part One
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1.To answer correctly is more important than(    ).
  A. answered quickly    B. a quick answer
  C. quickly answered    D. to answer quickly
2.It (    ) until dark that he realized that it was too late to return home.
  A. is       B. wasn¡¯t
  C. weren¡¯t      D. were
3.Do you remember (    ) Tom about this before?
  A. to telling      B. telling
  C. to have told     D. tell
4.Look, (    ).
  A. there he goes     B. there goes he
  C. he goes there     D. he there goes
5.It seems difficult (    ).
  A. to stop the child to crying  B. to stop the child of crying
  C. stopping the child cry   D. to stop the child from crying
6.I have never drunk (    ) beer in my life.
  A. the better one     B. more best
  C. more better     D. better
7.(    ) we have done what you want, there is no reason for you to complain any more.
  A. Now that      B. Because
  C. In case      D. For fear that
8.Only then did he (    ) the situation he and his fellow soldiers were in.
  A. aware      B. aware of
  C. become aware     D. become aware of
9.The man in charge of the newspaper files saw an excited boy(    ) into the room.
  A. rushed      B. rushes
  C. rush       D. had rushing
10.Jane has a very good collection of books, (    ) are written in foreign languages.
  A. many of those     B. those
  C. many of which    D. many in which
11.Many new opportunities will be opened up in the course of time for those (    ).
  A. with an university education.  B. with a university education
  C. have a higher education   D. have had a higher education
12.Fifty people were invited to the party, but only forty (    ).
  A. turned around     B. turned up
  C. turn to      D. turned in
13.When she is nervous, she does nothing (    ).
  A. but eating     B. but eat
  C. to eat      D. eat
14.They argued back and forth for a long time about (    ) next.
  A. what should they do   B. what they should do
  C. what do they do    D. what they are doing
15.(    ) to hear that I had withdrawn from the competition.
  A. They all very surprised   B. Surprised
  C. Surprisingly     D. They were all very surprised
16.It¡¯s (    ) possible (    ) necessary.
  A. not only...but also    B. either...but
  C. not ... and     D. whether ... or
17.When the old man (    ), he found himself lying in hospital.
  A. come up to     B. come to
  C. came to      D. came up
18.He (    ) when he recognized the voice at the other end of the phone.
  A. hung up      B. hang up
  C. hanging      D. hung in
19.(    ) lose all our money, but we almost lost our lives.
  A. Not only we     B. Not only did we
  C. Not did we only    D. Only we did not
20.He who makes no mistakes (    ) nothing.
  A. make      B. making
  C. makes      D. made

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Ten thousand years ago, when people learned to grow plants and raise animals for food, the population of the earth was very small. There were only about five million people who had to be fed, and each family was able to provide its own food. Later, people began to exchange food for services.
Now the world¡¯s population is close to four billion. There is not enough land for each family to have its own farm. Supplying food to consumers had become what might be the largest industry in the world.
    Farming which was a family job in the past, has now become big business. Huge areas of land are used to raise one kind of crop¡ªfruits or vegetables or grains. Scientists are always trying to develop methods to make the soil produce better crops and to develop crops that contain more life-giving nutrients. Other kinds of scientists search for ways to attack insects that eat or destroy our food crops.
    After the crops have been harvested, workers are needed to prepare them for use. Some fruits and vegetables are sold fresh, some are frozen, some are preserved in cans and jars. Some grains must be ground to make flour; others are cut up to be used for animal food.
    Cows, sheep, goats, pigs, chickens, turkeys, and other animals are raised to provide meat for th