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Bungee jumping is an activity about jumping from a tall structure while connected to a large elastic cord(有彈性的繩子). 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(擺動)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(商業(yè)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.
小題1:Which of the following is NOT suitable for bungee jumping?
A．The fixed-wing aircraftB．The helicopter
C．The hot-air balloonD．The mobile crane
小題2:In the second paragraph, the author tells_________________.
A．who suits bungee jumping
B．the principle of bungee jumping
C．the material used for bungee jumping
D．the danger of bungee jumping
小題3:According to the last paragraph, the safety of the jumpers depends mainly on________.
A．the weight of the jumper
B．the height of the jumping place
C．the length of the cord
D．the speed of the falling
小題4:The purpose of writing this passage is to__________.
A．teach people how to carry out a bungee jumping
B．remind people of the danger of bungee jumping
C．advise people not to take the risk of bungee jumping
D．introduce some knowledge about bungee jumping

小題1:A
小題2:B
小題3:C
小題4:D

試題分析：文章介紹了蹦極跳的一些知識。包括適合這項運動的場合，原理如何保證安全等。
小題1:細節(jié)題：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
小題2:段落主旨題：文章第二段介紹了蹦極跳的原理。選B
小題3:從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.可知蹦極跳安全的關鍵是有彈性的繩子。選C
小題4:主旨題：文章介紹了蹦極跳的一些知識。選D
點評：文章有很強的實用性，和題目相關的有的涉及到一些長句的理解，要求考生長句的分析能力，還有段落大意的歸納，考查學生的概括能力，考生做題時要多的通過句子看到本質。
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D．The height of the weight you carry.
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C．avoid using big bags very often
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小題1:What do most people think causes bad behavior?
A．Being forced by others. B．Not having enough will power.
C．Enjoying their first experiences.D．Following the examples of their friends.
小題2:The author mentions his experience in the third paragraph to prove ____.
A．will power helps develop bad habits sometimes
B．drinking beer is harmful to the health of teenagers
C．self-control should be developed when one is young
D．everyone can be challenged by different temptations
小題3:In the last paragraph, the author stresses(強調) that ____.
A．without self-control, no one can succeed
B．bad habits don’t always lead to bad results
C．applying self-control correctly is important
D．people can develop wisdom from bad behavior
小題4:What would be the best title for the passage?
A．My First Sip of BeerB．Do You Have Will Power ?
C．Will Power Benefits UsD．Dark Side of Self-control

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