1 . Several days of unusual warm weather in northern Greenland have caused rapid melting(融化). “Temperatures have been running around -12.2 ℃-15.5 ℃. It is warmer than normal for this time of year,” scientists said. The amount of ice that melted in Greenland between July 15 and July 17 alone—6 billion tons of water per day—would be enough to fill 7.2 million Olympic-sized swimming pools, according to the report from the National Snow and Ice Data Center. Put another way, it was enough to cover the whole state of West Virginia with a foot of water.

For the scientists out on the ice sheet(冰盖), the warmth has been alarming. “It really makes me anxious,” said Kutalmis Saylam, a scientist who is now working in Greenland. “Yesterday, we could hang about in our T-shirts, which was not really expected. Since Greenland holds enough ice, sea level would rise by 7.5 meters around the world if ice all melted.”

In 2020, scientists found that Greenland’s ice sheet had melted beyond the point of no return. “No efforts to prevent global warming can stop it from finally breaking into small parts,” said researchers.

Aslak Grinsted, a climate scientist, said that they were trying to get flights into the camp so they can ship out the ice cores(冰芯) they had recently collected. But the warmth is destabilizing the landing site. “The weather we are seeing right now is too hot for the ski-equipped planes to land,” Grinsted said. “So we store the ice cores in large caves we have made into the snow to protect it from the heat of the summer.” Scientists made use of the abnormal warmth while they were waiting, playing volleyball in their shorts on an ice sheet at the top of the world.

Grinsted referred to the temperatures as a heat wave, and noted that the possibility of temperatures getting this hot was clearly connected to global warming.

1. How does the author support the topic of paragraph 1?

A．By exploring reasons.	B．By making comparisons.
C．By designing the numbers.	D．By doing some experiments.

2. What did Kutalmis mean in paragraph 2?

A．He disliked wearing a T-shirt.

B．He worried about the warmth.

C．He was deeply impressed by the ice.

D．He was thirsty for enjoying the sea view.

3. What does the underlined word “destabilizing“ mean in paragraph 4?

A．Quitting.

B．Improving.

C．Sheltering.

D．Destroying.

4. What will the author probably do in the following paragraph?

A．Recommend visiting Greenland.

B．Describe how to ship out the ice core.

C．Call on people to protect the environment.

D．Plan to organize a sports meeting on ice.

2 . When the monthly electricity bill came home, parents always couldn’t believe their eyes, as the amount was much more than needed.     1     Here are some tips for parents to educate their children on how to save energy.

Switch off the lights. Assign one day in a week for a “turn off” practice, for a few hours. Tell the kids the significance of using less electricity and how it impacts the environment.     2    

Use energy-efficient transportation. When parents and their children are out on vacation, have a cycling outing. When the whole family rides bicycles together, it not only serves as a great bonding exercise, but it also teaches the children about eco-friendly transportation options.     3    

Play a game.     4     Engage them in a game instead. Ask the little ones to walk around the house with pen and paper, and make a note of all the equipment that consumes energy. Let them suggest what measures can be taken within the home to reduce consumption of electricity and go green. Parents can stick small notes near these appliances to give them interesting information on conservation.

    5     Create a theatre-like experience at home on a Sunday and gather everyone in the family, especially the kids, to watch an informative film about environmental issues or climate change. If parents have slightly older children, they can discuss the film and ask them what they think.

A．Watch an environmental film.

B．Talk with children about their opinions.

C．Play some games related to environmental protection.

D．Lecturing kids about environmental issues won’t help.

E．It makes them aware of the environmental effect of cars.

F．Light up some candles and play a board game to keep the children occupied.

G．So parents should urge their children to take up environment -friendly projects.

3 . It is reported that half the world’s forests have already been destroyed. This widespread destruction is due to deforestation (采伐森林). Deforestation is the removal of a forest or group of trees where the land is later transformed to a non-forest use. Cutting down trees is necessary for man’s survival. However, deforestation has a number of negative effects on the environment and needs to be controlled.

There are two main purposes for cutting down trees and one of them is to use the trees as resources. Essential items like paper, furniture and charcoal are all made from trees. Deforestation is also carried out to clear land for farming and to make room for roads and houses. As the population grows, more of the forest has to be cleared.

Although deforestation is necessary up to a point, it has some negative effects on the environment. Firstly, cutting down forests destroys animal habitats, leaving them with no place to live in. Deforestation also allows erosion to occur, which leaves the land easy to landslides and makes it difficult for plants to grow there. Finally, the removal of trees also worsens air pollution. Trees act as natural air filters that change carbon dioxide into oxygen. When they are removed, carbon dioxide can build up and pollute the atmosphere. Hence, it is obvious that deforestation harms the environment.

Due to the harm deforestation causes, it is necessary to control it. There are a number of ways to do this. One of them is to make better use of farming land. That means we do not need as much land for farming, and hence do not need to cut down so many trees. There must also be laws to limit deforestation and these laws must be enforced strictly. On top of that, reforestation must be carried out systematically. This method involves planting new trees and plants in areas where deforestation has occurred to replace what was destroyed.

To sum up, although deforestation must be carried out, it can harm the environment and must be controlled. Beyond a certain point, this damage to the environment cannot be fixed. Hence, we should do our best to make sure that the damage is never too great to fix.

1. What is the second paragraph mainly about?

A．How people get farmland.

B．What trees mean to human beings.

C．Why people carry out deforestation.

D．What effect deforestation has on environment.

2. What consequence may deforestation bring to animals according to the text?

A．Homelessness.

B．Extinction.

C．Disease.

D．Wars.

3. According to the text, how can we control the harm of deforestation?

A．By replacing new trees.	B．By banning deforestation.
C．By passing laws to limit farmland.	D．By making the best of farmland.

4. What may be the worst result if deforestation is beyond control?

A．Carbon dioxide will pollute the atmosphere.

B．There will not be any forest left in the world.

C．The damage to the environment will be beyond repair.

D．People will have no trees as resources for essential items.