One night in December 2016，a bear came into the city of Vancouver in Canada.It 【小题1】(walk) through the city streets past houses，shops and offices.Then it found some food in bins outside a restaurant 【小题2】started eating.In the morning，someone saw the bear and called the police.The police came and put the bear in a car and took 【小题3】 to the mountains outside the city.【小题4】(lucky)，the bear was safe.

Big animals usually come into cities 【小题5】(find) food.In Moscow in Russia，there are 35，000 wild dogs.The dogs live in parks，old houses，markets and train stations.Some dogs live in 【小题6】(group) and others live alone.Many people in Moscow like the dogs.They give them food and water.Some people make small houses 【小题7】the dogs in their gardens.This helps the dogs in winter，【小题8】the temperature in Moscow is－10 ℃ and there is a lot of snow and ice.

Many animals live in cities.In some cities，you can see birds，insects，mice and squirrels every day.But sometimes，it is 【小题9】(danger) when big animals come into cities to find food.We need to find ways of stopping animals 【小题10】(come) into the city without hurting them.

Daisy，a high school student，whose name comes from a sort of wild flower，is concerned about wildlife．She has longed 【小题1】（learn）something about wildlife around the world．

One day，she took a magical journey to three places on a flying carpet．In Tibet，she met an antelope 【小题2】（look）sad．She was told that they were being hunted mercilessly for the fur，which 【小题3】（use）to make sweaters for people，so they became an endangered species．At this，she realized protection was badly needed there．The carpet carrying Daisy 【小题4】（fly）so fast that next minute they arrived in Zimbabwe，【小题5】 she came across a happy elephant．It said，"By now，something has been done to protect us from being killed by farmers while money from tourism goes to the farmers．【小题6】 number of us is growing and the farmers are happy as well．" After hearing that，Daisy burst into laughter in【小题7】（relieve）．All of a sudden，the carpet rose again and Daisy was taken to rainforest．There she saw a monkey rubbing 【小题8】（it）with an insect over his body，because it had a drug that could affect mosquitoes．There，Daisy appreciated how animals could live together in peace．

When they landed home，everything began to disappear，for it was 【小题9】（actual）a dream．Anyhow，Daisy has learned that great importance should be attached 【小题10】wildlife protection and she is now determined to do something as the WWF suggests．

Over-dried Earth

The south-west of the United States, together with some parts of Mexico across the Rio Grande, is one of the driest parts of the North American continent. But, over the past two decades, even that expected dryness 【小题1】 (take) to the limit. According to Park Williams, who works at Columbia University’s Lamont-Doherty Earth Observatory, the current lack of rainfall in the area constitutes a megadrought of a severity 【小题2】(see) on only four other occasions in the past 1,200 years.

Dr Williams studies the annual growth rings of 1,586 ancient trees, in order to reconstruct soil-moisture patterns going back to 800 A.D. During warm, wet years trees grow fast, producing wide rings. During cold, dry 【小题3】 they grow more slowly, producing narrow rings. During a drought, a tree 【小题4】 not grow much at all.

【小题5】they describe in this week’s Science, the team identified dozens of droughts over the centuries in question. But four stood out. They then took the average soil-moisture value for the current drought and compared it with sequential（连续的） 19-year averages with the previous four, one of them 【小题6】(last) nearly a century. This showed that the region is already drier than it was during the first three of the previous megadroughts, and is equivalent to the event of 1575-1603.

In a world 【小题7】 human actions are driving temperatures up, Dr Parker and his colleagues wondered how much people are 【小题8】(blame) for this state of affairs. To estimate that, they turned to climate modelling.

Climate models are able to re-run the past with and 【小题9】 the warming effects of human activity, offering a way to compare what actually happened with what might have done. In their simulated world in which anthropogenic（人类起源的） emissions had not increased the greenhouse-gas effect, the team found that a drought did indeed still influence the western reaches of North America during the first two decades of the 21st century. But this imaginary dry spell was considerably 【小题10】(severe) than the real one-ranking 11th rather than 2nd in the period under study (see chart).