江西赣中南五校2016届适应性考试英语试题及答案(3)

      A. god helps those who help themselves
      B. most employers can treat employees, fairly
      C. try your best and you will be paid off at last
      D. the longer you work, the more you will be paid
  30. The author sets the example of "dark cave" to prove the opinion that__________.
      A. method is important in life
      B. one will suffer from suffocation without air
   .  C. never should we lose confidence in life
      D. we can change luck with efforts
  31. What is the main idea of the passage?
      A. Rewrite your destiny.                   B. How to change one's bad luck.
      C. Why should we be energetic to life?       D. Human life is precious and powerful.
D
Comparatively few fresh-water species of fishes are limited in their distribution to a single river system, yet not many are found on both sides of a high mountain ridge, such as the Rocky Mountains in North America. That is to say, the fish of the Mississippi Valley are generally different and distinct from those of the Pacific slope.
   While it is a well-known fact that the fish life in no two river systems, even though they empty into the sea on the same side of a divide, such streams do have many species in common.]The principal rivers of the Atlantic slope of the United States, for example, contain several species common to all of them, including the bullhead catfish(鲶鱼), the bluegill sunfish and the largemouth bass(鲈鱼). None of these species can endure salt water, so that they cannot now migrate from one river system to another. On the other hand, the more northern streams contain species not found in the southern ones, and vice versa. The common lake, for example, is found in the Atlantic streams from Maryland northward, and the brook trout(蹲鱼)and yellow perch(鲈) emerge only in the streams from North Carolina southward.
    How the present distribution came about must remain a matter of conjecture. It is quite probable that some of the streams, including those on opposite sides of a divide, may have been connected at one time. Again, streams may be entirely separate during normal weather, but an exceptionally heavy rainfall or the sudden melting of snow in the uplands sometimes causes floods which may form a temporary connection between them, providing a passage way for fishes.]It is possible, also that water birds may accidentally carry fish or spawn from one stream to another, or that man may be instrumental in such a transfer.
    Evidently, then, fresh-water fishes may become distributed far beyond the confines of the stream of their origin. The chief factor in limiting the still wider distribution of species is temperature. This forms such an efficient barrier that comparatively few species of fresh-water fishes of the United States extend their range into Mexico. In Panama only one fish common to the fresh waters of the States has been found, and that is the eel(鳗), which is not strictly a fresh-water form, as it enters salt water to spawn and is taken in fairly salty water at other times.
32. According to the passage, __________.
   A. The Mississippi River and the Pacific slope are on the same of the Rocky Mountains.
   B. The Mississippi River and the Pacific slope are on the two sides of the Rocky Mountains.
   C. The Mississippi River and the Rocky Mountains are on the two sides of the Pacific slope.
   D. The Pacific slope and the Rocky Mountains are on the two sides of the Mississippi.
33. In different river systems on one side of a divide, we may find__________.
   A. fishes of the same species.
   B. fishes of the different origin.
   C. a few rare fish species.
   D. fishes that have the same life.
34. Species, which can’t tolerate saltiness, may spread in to another river by the following mechanisms except__________.
   A. being carried by birds                  B. flooded connections
   C. humanity                          D. spawning in the river mouth
35. Efforts to deliberately transplant the bluegill sunfish and the large-mouth bass into Panama would probably fail due to ______.
A. eels              B. salinity            C. rainfall         D. temperature 
第二节（共5小题；每小题3分，满分15 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。
Are you concerned about the effect of the haze(雾霾) in Singapore on the health of your children? Then you should read the following passage.
“Young children, especially those with lung or heart illness, should avoid outdoor activity at PSI(Pollution Standards Index--- used in Singapore) levels above 100,” says Dr Biju Thomas.
The immune system(免疫系统) of children is not mature. ___36___ Exposure to the haze can result in symptoms such as a blocked nose, dry throat, breathing difficulty, and so on.
Children who are exposed to the haze and experience any of these symptoms which are not serious should recover on their own in time if they limit their exposure to the haze. ___37___