（题文）The__________ that there is life on other...

（题文）The__________ that there is life on other planets in the universe has always inspired scientists to explore the outer space.

A. advice　　 B. order

C. possibility　　 D. invitation

高三英语单项填空中等难度题查看答案及解析

_____the size of the universe, some researchers believe that there is life beyond our planet.

A. Consider　　　 B. To consider

C. Considered　　 D. Considering

高三英语单项填空中等难度题查看答案及解析

Life on earth depends on water, and there is no substitute for it. The current assumption is that our basic needs for water — whether for drinking, agriculture, industry or the raising of fish will always have to be met. Given that premise（前提）, there are two basic routes we can go: more access to water or more engineering solutions (more dams, for instance).

Looking at the engineering solution first, a lot of my research concentrates on what happens to wetlands when you build dams in river basins, particularly in Africa. The ecology of such areas is almost entirely driven by the seasonal regime of the river, or rather, the pulse of the water. And the fact is that if you build a dam, you generally spoil the downstream ecology. In the past, such problems have been hidden by a lack of information. But in the next century, governments will have no excuse for their ignorance. The engineers ability to control water flows has created new kinds of unpredictability. Dams in Africa have meant fewer fish, less grazing and less agriculture — none of which were expected.

The challenge for the next century is to find new means of controlling water. Although GM technology will allow us to breed better dry-land crops, there is no market stimulation for companies to develop crops suitable for the micro-climates of the Sahel and elsewhere in Africa. Who is going to pay for research on locally appropriate crops in the Third World?

This brings us to the key issue in any discussion of water: money. In the next century, just consider the problems of water supply in Mexico City or Delhi. If you’re rich, you drink mineral water and may even have a swimming pool — yet millions in such cities can’t get safe drinking water. People talk about the coming water crisis. I believe we have one now. It is a water crisis for the poor.

1. According to the passage, what are the two ways to solve the problem of water crisis? (no more than 8 words) (2 marks)

2. What will happen when dams are built in river basins in Africa? (no more than 6 words) (3marks)

3.Why are companies not willing to develop locally appropriate crops for Third World? (no more than 6 words) (3 marks)

4.What is the tone of the passage? (no more than 1 words) (2 marks)

高三英语阅读理解中等难度题查看答案及解析

Life on earth depends on water, and there is no substitute for it. The current assumption is that our basic needs for water — whether for drinking, agriculture, industry or the raising of fish will always have to be met . Given that premise (前提), there are two basic routes we can go: more equal access to water or better engineering solutions.

Looking at the engineering solution first, a lot of my research concentrates on what happens to wetlands when you build dams in river basins, particularly in Africa. The ecology of such areas is almost entirely driven by the seasonal changes of the river — the pulse of the water. And the fact is that if you build a dam, you generally spoil the downstream ecology. In the past, such problems have been hidden by a lack of information. But in the near future, governments will have no excuse for their ignorance.

The engineers’ ability to control water flows has created new kinds of unpredictability, too. Dams in Africa have meant fewer fish, less grazing and less floodplain (洪泛区) agriculture — none of which were expected. And their average economic life is assumed to be thirty years. Dams don’t exist forever, but what will replace them is not clear.

The challenge for the future is to find new means of controlling water. Although GM technology (转基因) will allow us to breed better dry-land crops, there is no market for companies to develop crops suitable for the micro-climates of the Sahel and elsewhere in Africa. Who is going to pay for research on locally appropriate crops in the Third World?

1.What’s the main idea of this passage?

2. Which of the following statements is NOT true for meeting our basic needs for water?

3. The author suggests that governments will have no excuse for their careless ignorance in the future because ________ .

4.The author mentions all the problems caused by dams EXCEPT ________ .

5.The last sentence probably implies that ________ .

高三英语阅读理解中等难度题查看答案及解析

The experiment has_________ the possibility of the existence of any life on that planet, but it does not mean there is no life on other planets.

高三英语单项填空简单题查看答案及解析

The experiment has_________ the possibility of the existence of any life on that planet, but it does not mean there is no life on other planets.

A. found out     B. pointed out    C. ruled out     D. carried out

高三英语单项填空简单题查看答案及解析

The experiment has_________ the possibility of the existence of any life on that planet, but it does not mean there is no life on other planets.

A. found out     B. pointed out    C. ruled out     D. carried out

高三英语单项填空中等难度题查看答案及解析

A man, who sometimes takes my bus, is in rags. His life seems different from that of the others. He looks exhausted and carries nothing. He appears along a downtown street, seemingly out of nowhere. We sometimes want to know where he sleeps at night.

A few weeks ago he boarded the bus. A few stops later, a young woman boarded. She swiped (刷) her bus-card, only to find the machine would not accept it. The driver told her to pay the $2.25 fare. “I just bought this card,” she said. “I paid the money...”

The driver said she could take the card back to the sales office and explain the problem. In the meantime she would have to pay the fare for that day. The woman became confused and distressed. The rest of us just watched, wondering how the problem would be solved. Suddenly the man rose from his seat, dropped a few coins into the fare box.

“You’re lucky,” the bus driver said quietly. “He paid for you.” Silence fell over the bus. The rest of us had watched the woman’s discomfort, but he felt it. We lawyers, journalists and business people headed downtown to help fix the world. He fixed her world.

I haven’t seen him since that day. Some people believe angels occasionally drop down and move among us. All I know is that I have a new respect for the simple act of kindness. It speeds us along on our way.

1.According to the first paragraph, the author _______.

A. thinks highly of the man                    B. often gives the man some help

C. knows the man very well                    D. considers the man strange

2. What does the underlined word “distressed” probably mean?

A. exited            B. generous　             C. bored　　　　     D. anxious

3.What did the writer learn from the man?

A.to show concern for other people.

B.to lead a happy life like the man.

C.to share what he has with us.

D.to believe that people are born kind.

高三英语阅读理解中等难度题查看答案及解析

A man, who sometimes takes my bus, is in rags. His life seems different from that of the others. He looks exhausted and carries nothing. He appears along a downtown street, seemingly out of nowhere. We sometimes want to know where he sleeps at night.

A few weeks ago he boarded the bus. A few stops later, a young woman boarded. She swiped (刷) her bus-card, only to find the machine would not accept it. The driver told her to pay the $2.25 fare. “I just bought this card,” she said. “I paid the money...”

The driver said she could take the card back to the sales office and explain the problem. In the meantime she would have to pay the fare for that day. The woman became confused and distressed. The rest of us just watched, wondering how the problem would be solved. Suddenly the man rose from his seat, dropped a few coins into the fare box.

“You’re lucky,” the bus driver said quietly. “He paid for you.” Silence fell over the bus. The rest of us had watched the woman’s discomfort, but he felt it. We lawyers, journalists and business people headed downtown to help fix the world. He fixed her world.

I haven’t seen him since that day. Some people believe angels occasionally drop down and move among us. All I know is that I have a new respect for the simple act of kindness. It speeds us along on our way.

1.According to the first paragraph, the author _______.

A. thinks highly of the man

B. considers the man strange

C. knows the man very well

D. often gives the man some help

2.What does the underlined word “distressed” probably mean?

A. exited            B. generous　

C. bored　　　　         D. anxious

3.What did the writer learn from the man?

A. to show concern for other people.

B. to lead a happy life like the man.

C. to share what he has with us.

D. to believe that people are born kind.

高三英语阅读理解中等难度题查看答案及解析

Stephen Hawking believes that the earth is unlikely to be the only planet _life has developed gradually.

A. that                 B. where                C. which                D. whose

高三英语单项填空中等难度题查看答案及解析