On a clear February morning, a California black bear was set free. Looking around, he 【小题1】 (skillful) climbed the nearest tree. From high above the ground, he could see the hundreds of acres 【小题2】 were now his home. His eyes were filled with 【小题3】(curious)

The bear had come a long way. Last fall, the seven-month-old bear bub(幼兽) was found all alone. He had no mother to care for him. He was thin, 【小题4】 (weight) only 20 pounds----about half the normal weight for a bear that age. Luckily the bub 【小题5】(bring) to The Fund for Animals Wildlife Center in Ramona, California. At the center, the bub shared 【小题6】 outdoor enclosure(围栏) with another bear. There were trees to climb and places for them to dig dens(兽穴). 【小题7】(teach) the cub to find his own food, people working at the center 【小题8】(hide) fruit in tree branches. Soon, the bear was an expert at climbing trees and "picking" the fruit. All the staff felt 【小题9】(amaze) at his adaptability.

Finally, the day had come. With his new skill and strong body, the bub was ready to be 【小题10】 his own, and ready to live like a bear should---in the wild.

Thousands of years ago, Britain 【小题1】(cover) by thick forests, where wolves, bears, many different 【小题2】 (type) of deer and wild cattle lived. There were less than four million people who lived in small villages 【小题3】 (protect) by wooden walls from the animals outside. But now the population of the UK has increased to sixty-five million. Three-quarters of Britain 【小题4】 (make)up of fields, towns or cities. Although 25 per cent of land is countryside, new methods of farming mean that there are 【小题5】 (few) birds and small animals living in fields than ever before. 【小题6】 (actual), some organizations and writers say that Britain needs to become more natural again. They suggest trees and plants 【小题7】 grew in the United Kingdom before towns and cities were built should be allowed to grow again. Even large wild animals should be helped to return and live wild. They call his "rewilding", But not everyone agrees. In the last twenty years, over one million trees which originally grew in Scotland 【小题8】 (plant). But wild animals? Some people ask 【小题9】 wolves will attack sheep or even humans. They are also angry that rewilding might mean an end to 【小题10】 (walk) in the hills which so many people enjoy.

Natural resources are things 【小题1】 exist in nature and can be used by people. Some natural resources are renewable, like trees. When one tree is cut down, we can plant a new tree to replace it. Others, 【小题2】, are not renewable, like the coal dug out of the ground. Once it is used, it is 【小题3】. (go)

Although we all know that our natural resources are limited, we often waste them in our daily life. Paper, bottles and cans 【小题4】 (throw) away carelessly; food is wasted just because of  its  poor  taste; clothes  are  rejected 【小题5】 (simple) due  to  their  old fashion. These valuable natural resources will run out before long 【小题6】 better use is made of them.

Actually, everyone can make contributions (贡献) to 【小题7】 (protect) our natural resources. For example, 【小题8】riding a bicycle or walking instead of driving, we can save lots of petrol. Water is a very important natural resource because we all need 【小题9】 to stay alive. We can make wise【小题10】 (choose) to save water, like reusing the water that has been used to wash vegetables to water flowers.