Around the world more and more people are ___1___ dangerous sports and activities. Of course there have always been people who have ___2___ adventure—those who have climbed the ___3___ mountains, explored unknown parts of the world or ___4___ in small boats across the greatest oceans. Now, however, there are people who look for an immediate pleasure from a ___5___ activity which may only last a few minutes or even ___6___.

I would consider bungee jumping to be a good example of such an activity. You ___7___ from a high place about 200 meters above the ground with an elastic rope ___8___ to your ankles. You ___9___ at up to 150 kilometers an hour until the rope stops you from ___10___ the ground. It is said that 2 million people around the world have now ___11___ bungee jumping. Other activities, ___12___ most people would say are as dangerous as bungee jumping, ___13___ jumping from tall buildings and ___14___ into the sea from the top of high rocks.

Why do people take part in such activities as these? Some psychologists(心理学家) suggest that it is because life in ___15___ societies has become safe and boring. Not very long ago, people’s lives were constantly under ___16___. They had to go out and hunt for ___17___, and life was a continuous battle for survival.

Nowadays, according to many people, life offers ___18___ excitement. They live and work in relatively safe condition; they buy food in shops; and there are doctors and hospitals to ___19___ them if they become ill. The answer for some of these people is to ___20___ danger in activities such as bungee jumping.

1. A. escaping from       B. taking part in     C. going in     D. taking in

2. A. looked up      B. looked into C. looked for  D. looked around

3. A. lowest    B. highest       C. beautiful    D. wild

4. A. sailed     B. swam  C. jumped      D. crossed

5. A. safe B. excited       C. funny  D. dangerous

6. A. years      B. seconds      C. hours  D. days

7. A. jump      B. run     C. walk   D. cross

8. A. followed B. tied     C. brought      D. took

9. A. go   B. run     C. fall     D. fly

10. A. falling  B. running      C. flying D. hitting

11. A. tried     B. looked for  C. found  D. studied

12. A. that      B. which C. it D. what

13. A. hold     B. include       C. find    D. contain

14. A. swimming    B. running      C. diving D. sailing

15. A. old       B. modern      C. past    D. formal

16. A. safety   B. imperfection      C. danger       D. perfection

17. A. animals B. food   C. water  D. dangers

18. A. few      B. little   C. much  D. many

19. A. look at  B. look into    C. look for     D. look after

20. A. look for       B. look after   C. explore      D. find

_________ around the Water Cube，we were then taken to see the Bird’s Nest for the 2008 Olympic Games．

　　A．Having shown　

　　B．To be shown

　　C．Having been shown

　　D．To show

________ around our new dormitory,the foreigners were taken to visit our canteen,which lies behind.

A.Showing　         B.Having shown?

C.Being shown　   D.Having been shown?

_____around the Water Cube, we were then taken to see the Bird’s Nest for the 2008 Olympic Games.

    A. Having shown    B. To be shown    C. Having been shown    D. To show

Around 1850,a terrible disease ______the potato crop,and potatoes ______bad in the soil.

A.fight;went          B.hit;went             C.struck;turned      D.attacked;became