1 . Several years ago, Jason Box, a scientist from Ohio, flew 31 giant rolls of white plastic to a glacier (冰川) in Greenland. He and his team spread them across 10,000 feet of ice, then left. His idea was that the white blanket would reflect back the rays of the sun, keeping the ice cool below. When he came back to check the results, he found it worked. Exposed ice had melted faster than covered ice. He had not only saved two feet of glacier in a short time. No coal plants were shut down, no jobs were lost, and nobody was taxed or fired. Just the sort of fix we’re looking for.

“Thank you, but no thank you.” says Ralph King, a climate scientist. He told Grey Childs. author and commentator, that people think technology can save the planet, “but there are other things we need to deal with, like consumption. They burned $50,000 just for the helicopter” to bring the plastic to the glacier. This experiment, quote-unquote, gives people false hope that climate change can be fixed without changing human behavior. It can’t. Technology won’t give us a free ride.

Individuals respond to climate change differently. Climatologist Kelly Smith is hardly alone in her prediction that someday soon we won’t be climate victims, we will be climate Choosers. More scientists agree with her that if the human race survives. The engineers will get smarter, the tools will get better, and one day we will control the climate. but that then? “Just the mention of us controlling the climate sent a small shiver down my back, Grey writes.” “Something sounded wrong about stopping ice by our own will,” he says.

Me? I like it better when the earth takes care of itself, I guess one day we will have to run the place, but for the moment, sitting at my desk, looking out at the trees bending wildly and the wind howling, I’m happy not to be in charge.

1. Why does the author mention Jason Box’s experiment in the first paragraph?

A．To introduce a possible solution to climate change.

B．To describe a misleading attempt to fix the climate.

C．To report on a successful experiment on saving the glacier.

D．To arouse people’s attention to the problem of global warming.

2. Which statement would Ralph King most probably agree with?

A．The fight against climate change will not succeed.

B．Technology is not the final solution, let alone its high cost.

C．It’s best to deal with climate change without changing our behavior.

D．Jason’s experiment plays a significant role in fixing climate change.

3. What is Grey Childs’s attitude to human’s controlling the climate?

A．Favorable

B．Tolerant

C．Doubtful.

D．Unclear.

4. Which of the following is a suitable title for the text?

A．But should we fix the climate?

B．Is climate change a real problem?

C．How can we take care of the earth?

D．What if all the glaciers disappeared?

2 . Climate change can happen naturally or in response to human activities, including the burning of fossil fuels and clearing of forests. Burning fossil fuels creates gases that trap heat in the atmosphere. In fact, about 90 percent of the heat is absorbed by the ocean. So it’s really important to track the oceans’ warming, says Jörn Callies. He’s an oceanographer at the California Institute of Technology. Tracking how that heat affects the ocean is difficult because of its depth and size, though. This makes it hard for scientists to understand long-term changes in temperature.

In September 2020, Callies and other scientists reported a new way to check the temperature of the ocean. As temperature affects how fast sound travels (sound travels faster in warmer water than colder water). Scientists originally proposed using sounds produced by machines to measure ocean warming, but it would affect marine animals. Whales, for example, use sound to communicate. Finally, Callies and his team showed they could use the natural sounds produced by earthquake instead.

For their study, the scientists looked at data for 2,000 pairs of earthquakes. Each earthquakes pair happened in the same place but at different times. What did the scientists find? The sound waves traveled a few tenths of a second faster in more recent quakes than in older ones. This difference suggests a warming trend of 0.04 degrees Celsius (about 0.08 degrees Fahrenheit) per decade. A tiny amount of a degree may not sound like a lot. But it represents a huge of heat that the ocean absorbed. It takes a lot of heat to change the temperature of a body of water almost 3,200 kilometers (2,000 miles) wide and several kilometers deep.

However, Callies says it’s not the time to worry about that yet. They don’t know if the warming is only specific to the one region (East Indian Ocean) or if it’s happening elsewhere. “We just don’t have the data yet.” he says.

1. The heat caused by burning fossil fuels is mainly ________.

A．cleared by the forest	B．disappearing naturally
C．taken in by ocean	D．trapped by human activities

2. It is difficult to track the heat in the ocean because ________.

A．scientists can’t understand the changes in temperature

B．measuring the temperatures cost too much

C．the changes in temperature is too small

D．oceans are so deep and big to measure

3. Scientists choose sounds produced by earthquakes to track the ocean’s warming because ________.

A．natural sounds is less harmful to marine animals

B．sounds produced by machines are not correct

C．marine animals absorb sounds produced by machines

D．sounds produced by earthquakes travels faster than those by machines

4. Which conclusion can be drawn from the third paragraph?

A．The change of sound sped affects temperature.

B．The change in the ocean’s heat can be ignored.

C．The experiment was not a success.

D．The change in the ocean’s heats is actually very big.

5. What does Callies mean in the last paragraph?

A．Study should be continued and more data need to be collected.

B．There is no need to worry about the climate change.

C．He lost confidence in the study.

D．The scientists can’t analyze the data correctly.