Monarchs (黑脉金斑蝶) are the only butterflies known to make two-way migrations, as birds do. In the late summer and early fall, the butterflies typically leave southern Canada and northern and central     1     (region) of the United States. They make a dangerous trip to Florida and Mexico,     2     the weather is warmer. In recent years, monarch populations have been dropping dramatically. To help save the monarchy butterfly population, teens in the North Carolina community formed a club. The Monarch Butterfly Club at East Chapel Hill High School     3     (success) applied for land from the town council for the monarchs’     4     (protect). Club members hope that the garden they     5     (create) will be a safe resting place for the monarchs during     6     (they) long migration. The students plan to get more land from the community in the future. This summer, the club held events for the community. Residents of Chapel Hill were able to help club members plant milkweed for     7     young to eat. “We tell people about the club and our goals     8     (raise) awareness,” said member Kevin Guo, 16. “We’re hoping this can make a change     9     cause people to do more for the butterflies. “According to club member Reymond Zhao, also 16, the situation has to     10     (improve) as soon as possible. He has been planting milkweed in his own backyard for the past few years. “In the future, we might get more schools or clubs into this,” he said. “We need all the help we can get.”

Kunming, the capital of Yunnan Province, is the economic and     1     (culture) center of southwest China. It is linked by rail with all of China's major cities. Its rail link with Hanoi(河内)     2     (establish) in 1901.

Kunming's mild climate makes it a good place     3     (visit) any time of the year.    4     it can be hot and humid in summer, it has cool, dry winters. The climate here is great for flowers, with more than 400 varieties     5     (plant) here. The camellia (山茶花)is the city's official flower. The city is also known for     6     (it) green parks, such as Cuihu (Green Lake) Park with its waterways and winding paths. Younger     7     (travel) may enjoy a visit to Daguan Park because of its food stalls.

In addition to its own charms, Kunming serves as a base from    8     people can explore the culture of ethnic groups in the area. The most well-known are the Dai, Bai and Naxi. People can also visit the Yunnan Stone Forest, which has been known     9     the "first wonder of the world" since the Ming Dynasty. Located 120 km (75 miles) from Kunming, the stone forest     10     (feature) awesome rock formations.

In hundreds of cities around the world, people can use a car     1     actually owning one. It’s known as car sharing.

Car sharing works like this: people pay a fee     2     (join) a car share organization. These organizations have cars available in different parts of a city 24 hours a day. Members make a     3     (reserve) for a car, and then go to one of several parking lots in a city to pick up the car. They pay an hourly or daily rate for driving it. When they are     4     (finish), they return the car to a parking area for someone else to use.

Car sharing works well for several reasons. Some people only need to drive from time to time. Usually, people only need a car for special reasons like moving things or     5     (take) long trips. Many people don’t want the costs or responsibilities of owning     6     car. The car-share organization pays for gas insurance, cleaning and repair costs.

Members also don’t have to wait in line or fill out     7     (form) to get a car. They know a variety of cars will be available when they need one.

Car sharing also     8     (benefit) the environment. People drive only     9     they need to and fewer cars on the road means     10     (little) traffic and air pollution. As more and more cities become interested in reducing traffic, car sharing programs are becoming an effective choice.

According to a new report by IPCC (Intergovernmental Panel on Climate Change), the deadly heat waves, floods     1     droughts are disturbing the     2     (life) of thousands of people from the American West to southern Europe and central China. And they will be likely only to get     3     (bad) as global temperatures continue to rise. “So far, all regions of the world     4     (affect) by some extremes,” says Sonia Seneviratne, an environmental     5     (science). “We can link extreme weather to climate change in     6     same way we can link cancer to smoking,” says Friederike Otto, one of the report’s authors. And, like smoking, the damage is hard     7     (disappear), Otto says. The most important thing, experts say, is to make sure these events don’t grow even more common and intense     8     they are now. “I feel     9     (strong) that the public needs to know that dangerous climate change is here and now,” says Michael Wehner, an extreme weather researcher. To limit global warming to just 2℃, Wehner says, “It’s my feeling that we would have to do something rather extreme.” Something extreme, he adds, means completely     10     (get) rid of consumption of coal, oil, and natural gas.

Sanjiangyuan, literally meaning the “source of three rivers”, is home to the headwaters of the Yangtze, Yellow and Lancang rivers. The pilot national park, with a total area of 123,100 square km     1     (locate) on the Qinghai-Tibet Plateau and harbors more than 70,000 herdsmen. Therefore.     2     is very important to maintain the purity and cleanliness of this area, because it directly affects the water quality in most of China.

For a long time, there were too many local herdsmen and animals     3     (use) the grass in the area and consequently the local lakes were getting smaller.     4     the national park was established, the government has invested a significant amount of money in equipment and training for accurate monitoring of wildlife. For example, the population of snow leopards is an important indicator of ecological health in the area, and as long as     5     number of these animals stays stable, the area is safe and     6     (environmental) healthy. Much of the grassland has been returned to its natural state, and the herdsmen have been helped to move to the local towns and to find new jobs.     7     (encourage) by local government, more and more local people are supported to take part in environmental protection. They have been appointed as conservators in the area, responsible for collecting rubbish or for observing the wildlife.     8     more people working as conservators, the     9     (aware) of environmental protection has gradually become part of their lives. Local officials also have said that their jobs have become a lot     10     (easy) now that the training programmes and government support are in place. Now, in Sanjiangyuan National Park, the mountains have become greener, the water clearer and the sky bluer.

A male elephant that broke away from the wandering elephant pack     1    ( send) back to its forest home on Wednesday in Xishuangbanna Dai Autonomous Prefecture, southwest China's Yunnan Province, local authorities said.

Yuxi City headquarters in charge of monitoring the pack's migration (迁徙) took the     2     (decide) early Wednesday morning     3     ( prevent) the lone animal from entering heavily populated areas. At 3 p. m.，the elephant was caught and returned to the nature reserve. The animal appeared     4     (health) and did not suffer from any injuries.

The pack of 15 wandering wild Asian elephants travelled about 500 kilometers north from their forest home. The male elephant separated from the pack on June 6, and moved around in the     5     (city) of Kunming, Anning and Yuxi, with an activity area of 140 square kilometers and a walking distance of 190 kilometers. It had relied mainly on     6     was provided by the locals. The     7    (remain) 14 elephants have been moving southward recently but are still far from the reserve.

Asian elephants are     8     A-level state protection in China, where they are     9     (most) found in Yunnan. Thanks to determined protection efforts in recent decades, the wild elephant population in     10     province has grown to about 300, from 193 in the 1980s.

As we all know, the pollution of air, water and soil are the most serious problems. The     1     (pollute) air, which causes diseases and deaths, does great harm     2     people’s health. What’s more, vegetation (植被) has been greatly reduced with the rapid     3     (develop) of the modern city.     4     (protect)the environment, governments of many countries have done a lot. In the past few years, legislative (立法的) steps     5     (introduce) to control air pollution. Governments are playing the most important role in     6     (environment) protection today. In my opinion, the government must take even more concrete measures. First, it should let people fully realize     7     importance of environment through education. Second, much more efforts should be made to put the population planning policy into effect, because more people means more pollution. Finally, those     8     destroy the environment intentionally (有意地) should be     9     (severe) punished. Everyone should be aware that     10     (destroy) environment means destroying mankind themselves.