________ can cause air pollution, so we’re encouraged to go on bikes or foot.

1. A.
   Keeping lights on when sleeping
2. B.
   Riding in cars
3. C.
   Using paper towels or napkins
4. D.
   Recycling paper

______ can cause high blood pressure and hearing problems.

    A. Air pollution    B. Water pollution      C. Light pollution  D. Noise pollution

Without proper planning, tourism can cause problems. For example, too many tourists can crowd public places that are also enjoyed by the local people of a country. If tourists create too much traffic, the local people become unhappy. They begin to dislike tourists and to treat them impolitely. They forget how much tourism can help the country’s economy(經濟). It is important to think about the people of a destination country and how tourism affects them. Tourism should help a country keep the customs and beauty that attract tourists. Tourism should also advance(推進) the well-being (health and happiness) of local people.

Too much tourism can be a problem. If tourism grows too quickly, people must leave other jobs to work in the tourism industry. This means that other parts of the country’s economy can suffer.

On the other hand, if there is not enough tourism, people can lose jobs. Businesses can also lose money. It costs a lot of money to build large hotels, airports, air terminals, first-class roads and other support facilities needed by tourist attractions. For example, a major international-class tourism hotel can cost as much as 50 thousand dollars per room to build. If this room is not used most of the time, the owners of the hotel will lose money.

Building a hotel is just a beginning. There must be many support facilities as well, including roads to get to the hotel, electricity, sewers to handle waste, and water. All of these support facilities cost money. If they are not used because there are not enough tourists, jobs and money are lost.

1.What is probably the reason if local people dislike tourists?

A．Tourists come to enjoy the customs and beauty.

B．Local people lose jobs.

C．A lot of hotels are built.

D．Too many tourists cause traffic problems.

2.What can we do to solve the problems caused by tourism?

A．Make plans properly

B．Help the country’s economy.

C．Build fewer hotels.

D．Advance the well-being of local people.

3.If tourism grows too quickly, ___________.

A．businesses will lose money

B．other parts of the country’s economy will make more money

C．local people will be happier

D．more local people will work for tourists.

4.Support facilities needed by tourist attractions includes ___________.

①public places ②hotels ③airports ④roads ⑤electricity  ⑥sewers

A．①②③④⑤       B．②③④⑤⑥        C．①②③⑤⑥        D．①③④⑤⑥

5.If the writer wants to add Paragraph 5 to the passage, he may tell us ________.

A．whether people need to build more hotels

B．whether people need to plan tourism properly

C．how to deal with the problems above

D．how to prevent tourism growing too quickly