Question

Bungee jumping is an activity about jumping from a tall structure while connected to a large elastic cord(有弹性的绳子). The tall structure is usually a fixed object, such as a building, bridge or crane; but it is also possible to jump from a movable object, such as a hot-air balloon or helicopter, that has the ability to stay over one place on the ground; fixed-wing aircraft are unsuitable because they only stay high when moving quickly forward.
When the person jumps, the cord stretches to absorb (吸收)the energy of the fall, then the jumper flies upwards again as the cord jumps back. The jumper oscillates(摆动)up and down until all the energy is used up.
The word bungee first appeared around 1930 and was the name for a rubber eraser. The first modern bungee jumps were made on 1 April 1979 from the 250-foot Clifton Suspension Bridge in Bristol, by David Kirk, Chris Baker and Alan Weston of the Dangerous Sports Club. The jumpers continued with jumps in the US from the Golden Gate and Royal Gorge bridges, spreading the concept worldwide. By 1982 they were jumping from mobile cranes and hot-air balloons. Later they put on commercial(商业的)shows, which began in 1986.
As with any sport, injuries can still happen, and there have been deaths. A relatively common mistake in the cases that may cause death is to use a cord that is too long. The cord should be fully shorter than the height of the jumping place to allow it room to jumper either starts to slow down or keeps speeding up depending upon the speed of falling

1. 1.
   Which of the following is NOT suitable for bungee jumping?
   1. A.
      The fixed-wing aircraft
   2. B.
      The helicopter
   3. C.
      The hot-air balloon
   4. D.
      The mobile crane
2. 2.
   In the second paragraph, the author tells______.
   1. A.
      who suits bungee jumping
   2. B.
      the principle of bungee jumping
   3. C.
      the material used for bungee jumping
   4. D.
      the danger of bungee jumping
3. 3.
   According to the last paragraph, the safety of the jumpers depends mainly on______.
   1. A.
      the weight of the jumper
   2. B.
      the height of the jumping place
   3. C.
      the length of the cord
   4. D.
      the speed of the falling
4. 4.
   The purpose of writing this passage is to______.
   1. A.
      teach people how to carry out a bungee jumping
   2. B.
      remind people of the danger of bungee jumping
   3. C.
      advise people not to take the risk of bungee jumping
   4. D.
      introduce some knowledge about bungee jumping

Answer 1

ABCD
试题分析：文章介绍了蹦极跳的一些知识。包括适合这项运动的场合，原理如何保证安全等。
1.细节题：文章第一段的句子：The tall structure is usually a fixed object, such as a building, bridge or crane; but it is also possible to jump from a movable object, such as a hot-air balloon or helicopter,可知答案是A
2.段落主旨题：文章第二段介绍了蹦极跳的原理。选B
3.从文章的最后一段的句子：The cord should be fully shorter than the height of the jumping place to allow it room to jumper either starts to slow down or keeps speeding up depending upon the speed of falling.可知蹦极跳安全的关键是有弹性的绳子。选C
4.主旨题：文章介绍了蹦极跳的一些知识。选D
考点：考查运动类短文
点评：文章有很强的实用性，和题目相关的有的涉及到一些长句的理解，要求考生长句的分析能力，还有段落大意的归纳，考查学生的概括能力，考生做题时要多的通过句子看到本质。