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2018年北仑区成人高考专升本考前英语模拟试卷及答案(4)

时间:2017/12/16 12:06:58   作者:马老师   来源:浙江继续教育在线www.jxjyu.cn   阅读:1763   评论:0
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  Ⅳ. Reading Comprehension (60 points)

  Directions:

  There are four reading passages in this part. Each passage is followed by five questions. For each question there are four suggested answers marked A, B, C and D. Choose one best answer and blacken the corresponding letter on the Answer Sheet.

  Passage One

  What’s the best way to protect a tender, green seedling from the hungry stomach of deer? Give the seedling bad breath!

  The same chemical that gives people bad breath after they have eaten garlic can save small trees from being eaten by animals.

  A kind of chemical selenium(硒), which is also found in garlic, is planted in the soil near a young tree. The tree’s roots absorb the selenium which is then carried to the leaves.

  From there the selenium is used to form a chemical called dimethyl selenide (乙烷硒化物)-the same chemical made in the human mouth after eating garlic. As deer wander around looking for food, they smell the seedlings’ leaves and leave the plants alone.

  The selenium is important. Why? Because each year deer eat millions of dollars’ worth of trees farm seedlings.

  So far, selenium has been tested only on Douglas fir (枞树) seedlings, but researchers think they could protect fruit trees and garden plants, too.

  61. When people eat garlic, ________.

  A. they send out a horrible smell B. they are out of breath

  C. they will feel sick D. it is hard for them to breathe

  62. According to this passage the bad smell given off from those leaves is that of ______.

  the young trees absorb garlic

  the roots of the young trees smell like garlic

  the young trees aren’t fit for the deer to eat

  the leaves of the young trees smell like garlic

  64. Up till the time the news was announced, this kind of chemical was used _______.

  A. all over the world B. all over the United States

  C. on fruit trees and garden trees D. on Douglas fir young trees

  65. The best title of this passage is ________.

  A. Hungry Deer and Young Trees B. Why Don’t Deer Eat Young Fruit Trees

  C. Plants Saved by “Bad Breath” D. How to Protect Young Trees

  Passage Two

  Hair loss is one of those things we still do not understand. Science has, of course, shown that men are more likely than women to suffer major hair loss. Some kinds of hair loss are temporary (暂时的), an effect of illness. In those cases we can expect the hair to grow back.

  It all depends on whether the hair root is alive. If it is not, hair loss is permanent and nothing will help.

  Some daily loss of hair is a normal, healthy sign. Most people lose between 40 to 50 scalp hairs each day.

  Each of these scalp hairs grows for from two to six years and then rests. About three months later it is pushed out by a new hair growing from the same root.

  This is not something that should cause great concern.

  Something else we know is that normal hair loss is seasonal, with the most hair loss occurring in the fall. Everyone experiences a normal cycle of loss and growth.

  The problem of hair loss results when loss is greater than growth.

  The main cause of hair loss in men seems to be accumulation (积累) of a hormone (荷尔蒙) in the body. When that hormone reaches a certain level, the hair growing period is shortened and hair loss is the result. This is no cure for most cases of hair loss. This, however, is not the end of the world.


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