All the people gathering there in the early morning _____ to clear up the rubbish.

A. volunteering　　　　　B. volunteered　　　 C. being volunteered　　 D. to volunteer

 If your idea of a good time is to sleep in a hut, carry your own rubbish, and eat insects and wild animals, then ecotourism may be just for you. But is it also for people who want to fly over a rainforest sky before checking into a comfortable and expensive hotel in the middle of a national park? Whatever ecotourism is, it is hot--perhaps too hot for its own good.

The World Tourism Organization claims that the industry looked after 592 million travelers last year who spent $423 billion, and of all the types of tourism, ecotourism seems to be the fastest growing. By the broadest measure -- a trip with some sort of nature or wilderness element -- ecotourism already accounts for perhaps a third of these travelers. On a stricter definition favored by the Ecotourism Society, it is “responsible travel that preserves natural environments and keeps up the well-being of local people,” which accounts for no more than 5% of tourism.

Ideally, ecotourism helps both people and nature. Before the disastrous civil war, Rwanda’s Mountain Gorilla Project was one such model. Visits to the gorillas were limited, local guides ensured good behavior or on the part of the humans, and the high admission charge - $170 a day -- paid for salaries and presentation of the gorillas’ living areas. As this made the gorillas worth more alive than dead, poaching (偷猎) decreased. As another example, preservation Cooperation, Africa’s largest ecotour operator, uses only local labor, buys products 5om local farmers, and supports building projects: such as clinics and schools. This contribution to social advance is also good business sense. Projects from which local people benefit directly are less likely to be affected by poaching and theft.

Ecotourism’s biggest problem is labeling. Going on an eco-tour is no guarantee of good ecology. So far, only Australia has an official system to grade tour operators and tourist attractions on the basis of their “greenness”. Another issue is how eco-tourists damage the environment. Dolphin-feeding, for instance, is innocent and enjoyable, but after too many free meals, the dolphins forget how to catch their own dinners.

Keeping prices high is one way to limit enthusiasm. But measuring the effect of ecotourism on human environments is trickier. It is common, for villagers to see ecotourism as a source of new income. Hence, the very tourists who venture in search of traditional cultures end up breaking them up. As ecotourism becomes more popular, it will finally threaten the very things that are good for business.

1.According to the passage, ecotourism may _________.

A. harm its own purpose by becoming too popular

B. save the environment by becoming more popular

C. harm its own purpose by becoming less popular

D. save the environment by becoming less popular

2.Within the tourism industry as a whole, ecotourism _____________.

A. has no single, clear definition that would satisfy everybody

B. has expanded less rapidly than other types of tourism

C. claims that no comfortable hotels should be used by tourists

D. most often has a negative effect on local culture

3.Rwanda’s Mountain Gorilla Project is a good example because ___________.

A. tourists were free to visit the gorillas whenever they wanted to

B. local people’s attitudes toward animals were not affected

C. the gorillas were protected from both tourists and local people

D. the gorillas’ living area was modernized because of the high admission

4. _________ most directly benefits the local community.

A. Rwanda’s Mountain Gorilla Project            B. Preservation Corporation

C. Australia’s grading system                            D. Dolphin-feeding

       The Florida sun baked my shoulders as I worked along the I-595 freeway near Fort Lauderdale, picking up rubbish. I paused to  36  the sweat off  my forehead and look up at the cloudless blue sky.“  37  can’t it rain?” I thought. That would   38  things down.

       I thought about my  39  , who were probably sitting in an air-conditioned  40  right now. I’d had some problems in school,   41  my parents decided to let me  42  full-time with my dad, We both worked for my uncle, who had taken  43  of a maintenance（道路养护）company. It was up to us to keep the roads  44  of rubbish. The job was  45  and dirty, especially on hot days  46  this. I wondered why I ever agreed to do it.

       We continued our  47  route along the I-595,   48  for the overpass bridge. Then I noticed an area where some  49  were broken on the ground. It wasn’t like that before.

       “Dad! Pull over! I want to  50  something out.”

       I jumped off the truck and rushed to the bridge. Something was telling me to  51  …there wasn’t much time.  52  I saw a Toyota that   53  upside down in the tree. Maybe it was a stolen car that somebody  54  there, I thought. Then, just at that   55  , I noticed something moving. It was a bloody leg poking out of the driver’s side window!

       “Heeeelp!”a lady moaned.

36． A．wipe                     B．cut                         C．put                         D．send

37． A．When                   B．How                       C．Why                       D．Where

38． A．turn                      B．keep                       C．make                      D．cool

39． A．parents                 B．school-times            C．friends                    D．school yards

40． A．office                   B．classroom               C．restaurant                D．living room

41． A．but                       B．or                          C．for                         D．so

42． A．work                    B．study                      C．stay                        D．spend

43． A．business                B．possession               C．position                  D．place

44． A．away                    B．from                      C．far                         D．clear

45． A．easy                            B．lonely                     C．smelly                    D．noisy

46． A．for                       B．like                        C．after                       D．as

47． A．regular                 B．common                 C．unusual                   D．normal

48． A．reaching               B．going                            C．looking                   D．heading

49． A．cars                      B．bottles                    C．branches                 D．glasses

50． A．check                   B．help                       C．take                        D．bring

51． A．decide                  B．hurry                      C．consider                  D．stop

52． A．Above                  B．Behind                   C．Ahead                    D．Below

53． A．hung                    B．trapped                   C．caught                    D．fell

54． A．stored                   B．deserted                  C．lost                        D．hid

55． A．bridge                  B．tree                        C．moment                  D．way

       The Florida sun baked my shoulders as I worked along the I-595 freeway near Fort Lauderdale, picking up rubbish. I paused to  36  the sweat off  my forehead and look up at the cloudless blue sky.“  37  can’t it rain?” I thought. That would   38  things down.

       I thought about my  39  , who were probably sitting in an air-conditioned  40  right now. I’d had some problems in school,   41  my parents decided to let me  42  full-time with my dad, We both worked for my uncle, who had taken  43  of a maintenance（道路养护）company. It was up to us to keep the roads  44  of rubbish. The job was  45  and dirty, especially on hot days  46  this. I wondered why I ever agreed to do it.

       We continued our  47  route along the I-595,   48  for the overpass bridge. Then I noticed an area where some  49  were broken on the ground. It wasn’t like that before.

       “Dad! Pull over! I want to  50  something out.”

       I jumped off the truck and rushed to the bridge. Something was telling me to  51  …there wasn’t much time.  52  I saw a Toyota that   53  upside down in the tree. Maybe it was a stolen car that somebody  54  there, I thought. Then, just at that   55  , I noticed something moving. It was a bloody leg poking out of the driver’s side window!

       “Heeeelp!”a lady moaned.

36． A．wipe                     B．cut                         C．put                         D．send

37． A．When                   B．How                       C．Why                       D．Where

38． A．turn                      B．keep                       C．make                      D．cool

39． A．parents                 B．school-times            C．friends                    D．school yards

40． A．office                   B．classroom               C．restaurant                D．living room

41． A．but                       B．or                          C．for                         D．so

42． A．work                    B．study                      C．stay                        D．spend

43． A．business                B．possession               C．position                  D．place

44． A．away                    B．from                      C．far                         D．clear

45． A．easy                            B．lonely                     C．smelly                    D．noisy

46． A．for                       B．like                        C．after                       D．as

47． A．regular                 B．common                 C．unusual                   D．normal

48． A．reaching               B．going                            C．looking                   D．heading

49． A．cars                      B．bottles                    C．branches                 D．glasses

50． A．check                   B．help                       C．take                        D．bring

51． A．decide                  B．hurry                      C．consider                  D．stop

52． A．Above                  B．Behind                   C．Ahead                    D．Below

53． A．hung                    B．trapped                   C．caught                    D．fell

54． A．stored                   B．deserted                  C．lost                        D．hid

55． A．bridge                  B．tree                        C．moment                  D．way

The Florida sun baked my shoulders as I worked along the I-595 freeway near Fort Lauderdale, picking up rubbish. I paused to  36  the sweat off  my forehead and look up at the cloudless blue sky.“  37  can’t it rain?” I thought. That would  38  things down.
I thought about my  39  , who were probably sitting in an air-conditioned  40  right now. I’d had some problems in school,   41 my parents decided to let me  42  full-time with my dad, We both worked for my uncle, who had taken  43  of a maintenance（道路养护）company. It was up to us to keep the roads  44  of rubbish. The job was 45  and dirty, especially on hot days  46  this. I wondered why I ever agreed to do it.
We continued our  47  route along the I-595,  48  for the overpass bridge. Then I noticed an area where some  49  were broken on the ground. It wasn’t like that before.
“Dad! Pull over! I want to  50  something out.”
I jumped off the truck and rushed to the bridge. Something was telling me to  51  …there wasn’t much time.  52  I saw a Toyota that  53  upside down in the tree. Maybe it was a stolen car that somebody  54  there, I thought. Then, just at that  55  , I noticed something moving. It was a bloody leg poking out of the driver’s side window!
“Help!” a lady moaned.