2 . There are hundreds of great national nature reserves in China. Now feast your eyes on the following amazing ones.

Qinghai Lake National Nature Reserve

Qinghai Lake, China’s largest saltwater lake in Qinghai Province, is a key body of water for lots of animals and birds. As an important stopover, migratory birds (候鸟) would rest in this area during their movement trip every year. The reserve became a national nature reserve in the year of 1997.

Bayanbulak National Nature Reserve

The only Bayanbulak Wetland, in Xinjiang Uygur Autonomous Region, is at the foot of Tianshan Mountains, which makes itself suitable for migratory birds. Bayanbulak means “rich spring water” in Mongolian, meaning that the area is rich in water. Every year, swans (天鹅) from different places fly here for nesting, which became a national swan reserve in 1986.

Rongcheng Swan National Nature Reserve

As one of the largest wintering places for swans in China, this reserve in Shandong Province mainly protects whooper swans (大天鹅), which make it different from other nature reserves. In 2007, it was changed into a national nature reserve. Now every year, thousands of whooper swans arrive here to spend the winter, making it an important resting and wintering place for themselves.

Sanya Coral Reef (珊瑚礁) National Marine Nature Reserve

This reserve focuses on protecting coral reefs and their living environment in Sanya City, Hainan Province. In 1990, it became a national nature reserve. This reserve is on the coast, so the area of the reserve has good water quality and many kinds of creatures,

1. What do the first reserve and the second reserve have in common?

A．The area of wetland.	B．The geography of them.
C．The year of becoming the national reserve.	D．The friendly environment for migratory birds.

2. What makes the Rongcheng Swan National Nature Reserve special?

A．Its saltwater lake.	B．The whooper swans.
C．Its rich spring water.	D．The warm climate.

3. Which place best suits coral lovers?

A．Bayanbulak National Nature Reserve.	B．Qinghai Lake National Nature Reserve.
C．Rongcheng Swan National Nature Reserve.	D．Sanya Coral Reef National Marine Nature Reserve,

3 . 假定你是某国际学校学生会李华, 你校正在开展垃圾分类活动，请你代表学生会用英语写封倡议信，向全校学生发出“垃圾分类，从我做起”的倡议。内容包括：
1.活动的目的和意义。
2.提出倡议。
注意：
1.写作词数应为 80 左右；
2.请在答题卡的相应位置作答。
Dear fellow students,
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Students Union

4 . Earth Day falls on April 22 each year to inform people about environmental problems and inspire them to act. It first came into being in 1970, followed in 1972 by World Environment Day. It has been celebrated ever since, slowly but surely picking up steam. Interestingly, it remained a grassroots affair for 20 years before spreading out to 140 countries in 1990. Now, it is celebrated around the world. Humans still face many challenges, such as climate change and plastic pollution. But we can all make a difference.

When Claire was in the seventh grade, she learned about plans to expand and modernize her middle school. As a follower of Earth Day, she wanted to help. Claire asked the school board to add solar panels to the project because, she explained, clean energy would contribute to a truly modern school, and help her school pursue sustainable development.

The board liked the idea but said it could contribute just $25,000, one-fifth of the cost. So Clarie turned to the community, looking for a solution. Her friends and neighbors shared her enthusiasm. Soon Claire organized a group of kids and adults, who set to work raising the rest. They wrote grant (拨款) requests, put on a talent show and asked for donations, even going door-to-door for them at Halloween. And they appealed to charitable foundations too. One donated more than half the cost!

After two years of hard work, the group paid for the solar panels, which now supply one-fourth of the school’s electricity needs, saving the district thousands of dollars. “My favorite part about this project was that one person could start something small and then the project could grow and have a big impact on the community,” Claire said “There are always going to be barriers and hard parts. When there’s a challenge presented to you, use it as a learning moment and an opportunity to overcome it.”

You can be a hero for the environment, so find out what can be recycled where you live.

1. What can we learn about Earth Day from the first paragraph?

A．It was first celebrated on April 22, 1972.	B．It gained instant popularity worldwide.
C．It aims to raise environmental awareness.	D．It promotes solutions to human challenges.

2. Why did Claire give advice to her school?

A．To sell the solar panels.	B．To make her school greener.
C．To improve academic grades.	D．To beautify the school campus.

3. What is paragraph 3 of the text mainly about?

A．The vital role of charities.	B．Difficulties in raising money.
C．Constant efforts on the project.	D．Financial support from the public.

4. Which of the following can best describe Claire?

A．Responsible and determined.	B．Generous and creative.
C．Energetic and reliable.	D．Curious and adventurous.

5 . 阅读下列短文, 在空白处填入1个适当的单词或括号内单词的正确形式。

Ar Horqin Grassland Nomadic System in the Inner Mongolia autonomous region, listed on the list of Globally Important Agricultural Heritage Systems by the United Nations,     1     (demonstrate) the wisdom of herdsmen to work in harmony with nature.

The     2     (season) movement of herds among different pastures (牧场) plays an important role in maintaining the self-renewal and recovery     3     (capable) of the grasslands. While keeping soil fertility from degrading, the nomadic lifestyle can protect vegetation and make good use of water resources,     4     the growing population of people and livestock, still puts much pressure     5     the grassland resources. Locals have, therefore, come up with ways to avoid overgrazing. With ancestral wisdom     6     (root) in a time of relatively small societies, it may be unable to solve issues today. This is     7     modern planning can help with.

For example, since 2015, under the guidance of the local government of Ar Horqin Banner, the number of sheep and goats in the nomadic system     8     (reduce) from 390,000 to 190,000, while the number of cattle has been increased from 40,000 to 81,000 head. No more than 100,000 sheep are allowed to migrate to the summer camps every year. With     9     (scientific) designed grazing patterns ensuring sustainable development of the grasslands, herdsmen can maintain     10     more balanced relationship with nature.

7 . We often think that buying an artificial tree instead of a real one for Christmas will help the environment by not cutting down trees. However, this argument doesn’t consider the process of producing and disposing of the trees, during which a lot of CO₂, emissions are being let off into the air. Actually, increased demand(需求)for real trees is helping the environment.

Artificial trees, when created, give out an average of 40kg of CO₂. To harvest a real Christmas tree, very little CO₂ emissions are caused. If left to biodegrade (生物降解), a real tree will return to the earth in one to two years depending on conditions. An artificial tree, however, will take hundreds of years to degrade, letting out more pollutants into the air. Further, even if an artificial tree is recycled, the process will continue to produce even more CO₂.

Real trees do not have these problems. They can have positive effects on our health. When they are near a window and regularly watered, they will produce clean oxygen which can improve health.

Undoubtedly, cutting down trees is bad for the environment, so what makes cutting down Christmas trees any different? Christmas trees have specific farms where they are harvested, meaning that protected forests aren’t cut down, and, with every tree harvested a new one is planted. The trees aren’t harvested until they are between 10 and 12 years old and the farms always have trees growing while they’ re harvesting this year’s trees.

If you have already used an artificial tree, the best thing you can do is to keep using it year over year to save it from going to landfill.

1. What does the Paragraph 1 say about artificial trees?

A．The process of producing them is difficult.	B．The demand for them is on the increase.
C．They help fight againstCO2 emissions.	D．They do no good to the environment.

2. How is Paragraph 2 organized?

A．By listing data.	B．By explaining different views.
C．By making comparisons.	D．By giving examples.

3. What do we know about the real Christmas trees from the passage?

A．They have a bad effect on the environment.	B．Cutting them down almost causes no harm.
C．They are harvested from protected forests.	D．Harvesting them needs great efforts.

4. What’s the purpose of the text?

A．To inform us of the function of real Christmas trees.

B．To tell us the benefit of not keeping a Christmas tree.

C．To show artificial trees have less value than real trees.

D．To explain why real Christmas trees are environmentally-friendly.

8 . In times of stress, particularly when the water gets too warm, the coral(珊瑚)erupts the algae(海藻), and the coral turns white, causing a state called coral bleaching(漂白). Just a few degrees of heat can lead to coral bleaching, putting the coral on a path to starvation and death.

Driven by climate change, marine heat waves are becoming one of the greatest threats to the existence of coral, which is important to the ocean ecology. But in some rare good news researchers have discovered coral can recover from bleaching even before a heat wave ends, suggesting it has the potential to survive long heat waves. Coral was thought to survive only if a heat wave lasted just a few weeks.

But no one had studied this process during a longer heat wave. Then in 2015, Julia Baum, a marine ecologist at the University of Victoria, began a survey of two common species: brain and star coral around Kiritimati in the central Pacific Ocean. They checked the condition of the coral as the heat wave struck and disappeared.

Starting in May 2015, the temperature rose about 1 ℃ within 2 months. As expected, coral that housed heat-sensitive algae bleached sooner than those housing the heat-tolerant kind of algae. As the water continued to warm, even heat-tolerant algae erupted.

Many brain and star coral on Kiritimati recovered from bleaching while the water was still unusually warm. Baum said, "The unexpected recovery provides new hope, because it means that even under lasting heat waves, there's a path forward for some of them."

An unusual feature of the recovery is that brain coral that started out with heat-sensitive algae had a higher survival rate(82%)than coral that began with heat-tolerant algae(25%). "That finding is surprising," said Baum, expecting that heat-tolerant algae would be better suited for helping coral survive a heat wave. But during a longer heat wave, it might be more advantageous to start with a heat-sensitive algae.

1. What results in coral bleaching?

A．The white algae.	B．The coral's death.
C．An attack of waves.	D．A rise in ocean temperature.

2. Why did Baum begin the survey?

A．To prove that coral can stop climate change.

B．To study how coral bleaching comes about.

C．To figure out whether coral survives long heat waves

D．To explain why coral bleaching is a big threat to coral

3. How did Baum feel about the finding?

A．Ashamed.	B．Confused
C．Worried.	D．Astonished.

4. What can the finding be used to do?

A．Protect the ocean environment.	B．Reduce coral bleaching.
C．Grow more different algae.	D．Regulate the heat wave.