One night, 【小题1】 winter, a bear came into the city in Vancouver Canada. It walked through the city streets past houses, shops and offices. Then it 【小题2】 (find) some food in bins outside a restaurant and started eating. In the morning, someone saw the bear and called the police. The police came with a vet(兽医) from the city zoo. They drove a lorry, in 【小题3】 the bear was taken to the mountains outside the city. 【小题4】 (lucky), the bear was safe. But what happens in other countries when big animals come into cities? In Vancouver it is unusual 【小题5】 (see) a bear, but in some cities you can see big animals on the city streets every day.

Big animals usually come into cities to find food. In Cape Town in South Africa baboons(狒狒) come into the city when they are 【小题6】 (hunger). Human food is very bad for the baboons’ 【小题7】 (tooth) because it has a lot of sugar. Now, there are Baboon Monitors working in Cape Town. 【小题8】 (they) job is to find baboons in the city and return them to the countryside.

In Berlin in Germany, pigs sometimes come into the city for food. They eat flowers and plants in parks and gardens. Sometimes they eat vegetables from gardens 【小题9】 they walk in the street, causing accidents. Some people like the pigs and they give them food and water to drink. Other people do not like the pigs and they want the government and the police to stop them 【小题10】 (enter) the city.

The total number of tigers in many countries has greatly decreased these years. 【小题1】the development of Asia, many lands have been divided up for roads, farms, factories, and so on. 【小题2】, tigers are losing their natural habitats. 【小题3】(hunt) who kill wildlife 【小题4】for human consumption or for illegal trade have reduced numbers of deer and other animals, 【小题5】 (make) tigers’ food insufficient. Some roads allow people to 【小题6】 (easy) get close to places where wild tigers live. Tigers 【小题7】 (kill) for their fur, bones and other body parts, many of 【小题8】are used as ingredients in medicines. Even though the sale of tiger parts is illegal, some people still take 【小题9】(risk). In 1920, scientists 【小题10】 (figure) out that there were 100,000 tigers in the wild. But today the number is in the low thousands.

Preserving more habitats for China’s giant pandas is providing a giant payoff. 【小题1】 (save) the giant panda from dying out isn’t just good for the panda, but it’s also good for economy, a new analysis by an international team of scientists shows.

The results 【小题2】 (publish) in the magazine Current Biology, stress the economic benefits that go hand in hand with environmental 【小题3】 (protect). Giant pandas are one of the rarest species around the world. But pandas fell on hard times in recent decades, thanks largely 【小题4】 human encroachment (侵入). In 1980 alone, many habitats 【小题5】 (destroy) artificially, and in 1990, their habitats covered only 12,340 square kilometers, which is a major threat to the pandas in large part because bamboo, their main food source, is so low in nutrients 【小题6】 they must wander a lot of land in order to find and eat enough of it.

Because of this, Chinese officials began making 【小题7】 (significance) efforts to save the panda from extinction, establishing more reserves and increasing the reserve area three times. Panda numbers 【小题8】 (gradual) began to recover, hitting 1,596 in 2000 and 1,864 in 2010.

“【小题9】 is clear that society’s investment (投资) 【小题10】 (start) to pay off so far in terms of panda population recovery”, the study authors said.