Although we produce carbon when we breathe, t...

Although we produce carbon when we breathe, the carbon we produce is much less than　 _____ produced by a car.

A. that　　 B. it

C. one　　 D. the one

高二英语单项填空中等难度题查看答案及解析

Although we produce carbon when we breathe, the carbon we produce is much less than________ produced by a car.

A. It　　 B. one which

C. the one　　 D. that

高二英语单项填空中等难度题查看答案及解析

Without plant, people could not live. We eat plants. We breathe the oxygen（氧气）that plants produce. And we need plants for another reason: we need them for their beauty.

Imagine a world with no plants. Imagine no flowers with their sweet smells, their beautiful colors and their lovely shapes. Imagine when the wind blows, not being able to hear the leaves in the trees or watch the branches sway（摇摆）from side to side.

Everywhere people need the beauty of plants. That is why we have parks full of trees and flowers. That is why people always try to design houses with room for some grass and a garden.

Do you talk to your plants? Do you give them love and attention?

Peter Tompkins and Christopher Bird, writers of a book called THE SECRET LIFE OF PLANTS, tell of an experiment in which two seeds were planted in different places. While the plants were growing, one plant was given love and hopeful ideas. The other plant was given only hopeless ideas. After six months, the loved plant was bigger. Under the earth it had more and longer roots; above the earth, it had a thicker stem (茎) and more leaves.

1. According to the passage, which of the following is right?

A. If there are no flowers, there will be no sweet smells.

B. Without plants, we can’t hear the wind.

C. We plant trees to watch the branches sway from side to side.

D. We need plants not only for food and oxygen but also for their beauty.

2. In the experiment, the plants were________.

A. talked to in two different ways

B. of different kinds

C. both given love and attention

D. grown in the same place

3. At the end of six months,________.

A. the plants were of the same size

B. one plant had longer roots while the other had a thicker stem

C. one plant had longer roots than the other and had a thicker stem

D. one plant had a thicker stem while the other plant had more leaves

4.The experiment has proved（证明） that________.

A. without plants people could not live

B. we should talk to plants and give them love

C. we should grow as many plants as possible

D. plants need plenty of water, sunshine and attention

高二英语阅读理解中等难度题查看答案及解析

We all know that forests-especially rainforests-absorb carbon dioxide and produce the oxygen that all living things depend on. It’s no wonder that they have been named the lungs of the planet. Today, after the big fires in the Amazon, Alaska, Greenland, and even Siberia, it’s very clear that we need to grow a forest that is fireproof. That’s not an impossible dream. We can grow seaweed forests that are fireproof because they are underwater.

Seaweed can store carbon and help reduce the influence of global warming. Now, seaweed is being farmed in small ocean farms to be used for food, medicines, and beauty products. If seaweed can be grown on a large scale(大规模地), it could help to fight against global warming.

“Seaweed is finally having its moment in the spotlight,” said Halley Froehlich, a scientist at the University of California. She is the lead author of a new study published in Current Biology. The study shows that large-scale seaweed farming could be used to cancel out land-based carbon emissions and it mapped the areas of the oceans where seaweed could be grown.

Now, only 3.8 percent of the US waters off the coast of California are being used to grow seaweed but that is just 0.065 of the ocean that can be farmed. In fact, 48 square kilometers of the world’s oceans can be used for seaweed farming.

For seaweed farms to be part of the global solution, they will have to be much larger. To create underwater forests, seaweed would have to be grown, harvested and then sunk into the deep ocean so that the trapped carbon could be buried for years to come.

While it sounds like a good plan on paper, “The technology doesn’t yet exist” to keep seaweed in the deep ocean, said Froehlich. “Hopefully this paper encourages conversation among engineers and economists about what it would take for the actual tools to be put in place.”

1.What makes people put forward the idea of growing seaweed forests?

A.The burning of forests.

B.Seaweed’s economic and medical value.

C.Uncontrollable carbon dioxide emissions.

D.Their long-lasting dream of underwater exploration.

2.Why can seaweed be used to fight against global warming?

A.It doesn’t burn. B.It doesn’t pollute.

C.It can take in carbon. D.It can break down plastics.

3.What does the underlined part “having its moment in the spotlight”in Paragraph 4 probably mean?

A.Breaking silence. B.Taking a bad turn.

C.Drawing people’s attention. D.Making room for other products.

4.What does Frochlich say about the idea of growing seaweed forests in the last paragraph?

A.It has a long way to go. B.It has been put into practice.

C.It needs lots of money to carry out. D.It needs enough evidence to support.

高二英语阅读理解中等难度题查看答案及解析

When we climbed up to the top of the mountain, we were all ___________.

A. out of the breath   B. short of the breath

C. out of breath      D. short of breaths

高二英语单项填空简单题查看答案及解析

When we climbed up to the top of the mountain, we were all ___________.

高二英语单项填空中等难度题查看答案及解析

When we climbed up to the top of the mountain, we were all ___________.

高二英语单项填空中等难度题查看答案及解析

When we climbed up to the top of the mountain, we were all ___________.

A．out of the breath                       B．short of the breath

C．out of breath                           D．short of breaths

高二英语单项填空中等难度题查看答案及解析

Carbon dioxide ___ from burning fuels is the most common of the so-called greenhouse gases.

高二英语单项填空简单题查看答案及解析

The car _______ in Germany in the 1960slooks old now.

高二英语单项填空简单题查看答案及解析