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 My friend David was not used _______ by air, so he felt unwell(不舒服).

  A. to traveling           B. to travel                   C. traveling                  D. Travel

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        ______ the poor living conditions, they continue to gather in the suburban villages because of low rents and easy transport.

A. Except                             B. Instead of                       C. Despite                           D. In case of

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 — Do I have to clean the dining room now?

— No, you ______.

don’t have to         B. mustn’t       C. needn’t to      D. shouldn’t

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27. ---Why does she always ask you for help?               

   ---There is no one else ____, is there?                              

      A. who to turn to                                      B. she can turn to

    C. for whom to turn                                 D. for her to turn

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 Peter was so angry at all ____ Mary was doing ___ he walked out.

A. what; as       B. what; that       C. that; which     D. that; that

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 It is ____ that most of us want to go outing.

A. such fine weather        B. such a fine weather  

C. so fine weather          D. so fine a weather

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科目: 来源: 题型:阅读理解

第四节: 阅读理解(共20小题,每小题2分,满分40分)

       阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

A

Science Daily -------- Dutch ecologist Roxina Soler and her colleagues have discovered that subterranean(地下的)and above ground herbivorous(食草的)insects can communicate with each other by using plants as telephones. Subterranean insects issue chemical warning signals through the leaves of the plant. Thus, aboveground insects are warned that the plant is already “ occupied”.

                     In recent years it has been discovered that different types of aboveground insects develop slowly if they feed on plants that also have subterranean residents and vice versa(反之亦然). It seems that a system has developed through natural selection, which helps the subterranean and aboveground insects to communicate with each other. This avoids unnecessary competition.

       Through the “green telephone lines”, subterranean insects can also communicate with a third party, namely caterpillars(毛虫). Parasitic wasps(寄生的黄蜂)lay their eggs inside aboveground insects. The wasps also benefit from the signals sent by the leaves, The communication between subterranean and aboveground It is still not clear how widespread this phenomenon is.

       This research was carried out at the Netherlands Institute for Ecology by Roxina Soler, Jeffrey Harvey, Martijn Bezemer, Wim van der Putten and Louise Vet. was funded by the Free Competition of NOW Earth and Life Sciences.

41. After finding a plant occupied by root-eating insects, aboveground insects will usually ________.

       A. send out warning signals

       B. choose to leave the plant

       C. fight with the root-eating insects

       D. compete with them for the same plant

42. Aboveground insects will develop more quickly if their food plants _______.

       A. have more green leaves

       B. get more water and sunlight

       C. are often visited by parasitic wasps

       D. are not occupied by root-eating insects

43. The underlined part “a third party” in Paragraph 4 refers to ______.

       A. caterpillars               B. root-eating insects    

       C. parasitic wasps          D. aboveground insects

44. What is the best title for the passage ?

       A. Insects use plants as “telephones”

       B. How do animals avoid competition

       C. The living habit of different insects

       D. Communication between different insects

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第二节(共5小题;每小题2分,满分10分)

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

_____56___. The time and money that doctors spend on their medical education are probably one reason for this problem. A visit to a doctor’s office costs from fifteen to fifty dollars. It is impossible to pay for the medical care they need. _____57_____. Most doctors, however, disagree. They say that they were required to study medicine for a long time. Tuition(学费) for many years of medical education costs a lot of money. Doctors say that it is necessary for most medical students to borrow money from a bank to pay their tuition.???????????????? _____58_____, young doctors need a lot of money for their work. _____59_____. Therefore it is possible that the high cost of medical care in American is unnecessary. Because high tuition is one cause of high costs, _____60_____.

A.It is possible for the poor people to see the doctor in America.

B.Many people in the United States think that doctors are overpaid

C.One way to lower costs would be to have medical schools that are free or have low tuition

D.They are not willing to pay high tuition for the doctors

E.The cost of medical care in the United States is very high

F.Because this money must be repaid to the bank

G.So, they charge people high prices for medical care

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6.The small factories___________from the fall of the prices.

A.benefited       B.benefited      C.benefited to       D.benefited in

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 The mother was trembling with anger. She _____ her son and said nothing.

A.looked at       B.stared at       C.glared at       D.glanced at

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