Today we can see that many people are cutting down the trees in the forests. A lot of        lands have become deserts. If we read newspapers, we’ll learn that the forests on the earth are getting smaller       . We are cutting down large numbers of trees        we need wood and farmland. Some scientists say that there will not be any great forests        20 or 30 years.
What will happen if the forests disappear? A lot of plants will die and the animals will      
their homes. In many places the new farmland will soon look        the old desert. Crops will not grow there. There won’t be enough       , and the weather will get hot and dry. If the climate of the earth changes, life will be        for everyone. Our living environment will become       . More and more rich farmland will disappear. We will suffer a lot from both droughts (干旱) and floods.
It’s our duty        the forests well. Everyone should try his best to make a contribution (贡献) to taking care of the forests. Stop cutting down the trees and make the world greener!
小题1:A. rich                B. low                  C. lonely
小题2:A. on time         B. all the time             C. in time
小题3:A. or              B. so                   C. because
小题4:A. at              B. on                   C. in
小题5:A. find                B. build                    C. lose
小题6:A. up              B. like                 C. at
小题7:A. snow            B. rain               C. wind
小题8:A. easy                B. happy                   C. hard
小题9:A. better and better   B. worse and worse          C. bigger and bigger
小题10:A. to protect     B. do                   C. to do

Many young people all over the world love to travel and see the world. Have you heard of backpackers? They are normally young people who travel cheaply with just one bag and comfortable walking boots. They buy local food in supermarkets to save money and at the same time become friends with local people.
Some people prefer adventure tours. Brave people may try bungee(蹦极) jumping from the bridge overlooking the Victoria Falls in Africa with only a rope around their legs. Some enjoy the challenge of rock climbing in the Alps in Switzerland. Others may go ice skiing in the Rocky Mountains in the USA.
Have you ever heard of an ecotourism (生态旅游)? It means a holiday in which people come close to nature but are very careful not to destroy the nature beauty or living things in the area. How can this be possible? Let's read an interview with people who enjoyed a swimming with dolphins tour.
Interviewer what was the most exciting part of your holiday?
Sharon from South Africa I felt excited when I heard the sound of wild dolphins beside me in the water and then swimming directly under me. An image I will never forget.
Xavier from Portugal There were two dolphins below us swimming downwards. One stopped and looked back at me as if to say “What are those strange things?” Fantastic!
Interviewer Did you feel that your holiday helped local people and areas to keep their beautiful environment?
Jane from New Zealand The hotel and the whale and dolphin watching companies hire local people. They used to hunt those whales and dolphins, but now they can earn money from tourism and mustn’t kill whales and dolphins. Not many boats are used at the same time so these animals aren't disturbed. The boat companies also work to educate the local schools about the importance of protecting these wonderful animals.
Helen from England I am glad they are not killing the whales and dolphins any more, but the cars and boats use fuel(燃料) which could cause pollution and make the sea dirtier.
Well, what do you think? Thousands of people visit the Forbidden City or the Great Wall of China every year. Do you think that's a good thing, or do you feel that China's important tourist attractions can be affected? Are there any ways of sharing your treasures (珍宝) but keeping them in good condition?

小题1:From the first paragraph, backpackers are young people________.

A．visiting historical places in China

B．traveling cheaply with just one bag

C．who love to travel and see the world alone

D．who love to buy local things as souvenirs

小题2:What can't you do when you take an ecotourism?

A．Come close to nature in the holiday carefully.

B．Protect the living things in the area.

C．Be careful not to destroy the nature beauty.

D．Keep the local people unhappy.

小题3:Sharon, Xavier, Jane and Helen think the tours are helpful EXCEPT________.

A．the hotel and the companies hire local people to help them earn money

B．local people used to hunt and kill whales and dolphins but now they don't

C．not many boats are used at the same time so animals aren't disturbed

D．the cars and boats use fuel to cause pollution and make the sea dirtier

小题4:According to the passage, which of the following is NOT true?

A．It's a cheap and popular way to travel and see the world as a backpacker.

B．We believe an ecotourism can greatly protect the nature beauty and living things.

C．China's tourist attractions can be protected because of being visited by tourists.

D．We’d better find good ways to share our treasures and keep them good.