不想做 帮个忙报答案 Americans like to visit the national parks.In 1996,over 250,000,000 people visitedareas which are managed by the National Park Service.Experts say that by 2011,500,000,000 people per year will visit the parks.As a result,

不想做 帮个忙报答案 Americans like to visit the national parks.In 1996,over 250,000,000 people visitedareas which are managed by the National Park Service.Experts say that by 2011,500,000,000 people per year will visit the parks.As a result,
不想做 帮个忙报答案
Americans like to visit the national parks.In 1996,over 250,000,000 people visited
areas which are managed by the National Park Service.Experts say that by 2011,
500,000,000 people per year will visit the parks.As a result,people are
trying to think of ways to protect the parks from the crowds.
The crowding of the parks
has caused several problems.One is that there is not enough space for all of
the people who want to use the parks.To deal with this problem,you may have
to book your tickets a few months ahead of time.The Park Service may also
raise entrance fees (费) .
Another problem caused by
increased park use is pollution.Some garbage and waste can be cleaned up,and
the cleanup can be paid for by increased entrance fees.To cut down on noise
pollution and air pollution,the number of cars allowed in parks may be limited.
If this happens,people may use buses to travel around the parks.Officials may
also limit the use of jet-skis,snow-mobiles,motor-boats,and sightseeing
helicopters and planes.
The parks may
also be in danger because of development that is going on around them.For
example,around Yellow
Stone Park,
many hotels,golf courses,resorts,and other tourist attractions have been
built.Some of these developments have effect on areas that are used by
animals.People will have to learn to agree about ways to protect the parks.If
they do not,there will soon be no reason to visit these national treasures.
31.According to experts,by 2011 thenumber of visitors ______.
A.may be doubled
B.may rise to 50%
C.will reach 250 million
D.will go up by a second
32.Which of the following is trueaccording to the text?
A.Visitors will pay less than before.ks5u
B.The parks are not big enough to hold all visitors.
C.Visitors may not necessarily buy tickets ahead of time.
D.Only buses are allowed to enter the parks.
33.Entrance fees may be increased _______.
A.because the National Park Service are short of money
B.only for the development of the national parks
C.to protect the animals
D.mainly to limit the number of visitors
34.What is the most possible meaning of theunderlined word “limited” in Paragraph
A.
Enlarged.B.Admitted.
C.Controlled.D.Concerned.
35.What can be inferred from the passage?
A.High fees may probably keep some people out of parks.
B.Helicopters and planes will not be used in parks any longer.
C.The bus will become the only tool in parks in order to cut down pollution.
D.National Park Service will always welcome as many visitors as possible.

不想做 帮个忙报答案 Americans like to visit the national parks.In 1996,over 250,000,000 people visitedareas which are managed by the National Park Service.Experts say that by 2011,500,000,000 people per year will visit the parks.As a result,
ABCCA
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