As we all know, two thirds of the earth’s sur...

As we all know, two thirds of the earth’s surface is water, ___ a lot of fish.

高三英语单项填空中等难度题查看答案及解析

_______ the fact that three quarters of the earth’s surface is covered with water, we can say that it is a ________ planet.

高三英语单项填空中等难度题查看答案及解析

We know more about the surface of the planet Mars than we know about what is at the bottom of Earth’s oceans.

Until recently, scientists had mapped only about 20 percent of the sea floor. But our knowledge of the deep seas is changing because of information from satellites. Scientists have produced a new map that provides a detailed picture of the oceans. The map is expected to help oceanographers, industry and governments.

The new map is twice as detailed as the map made 20 years ago. David Sandwell is a geophysics professor at the Scripps Institution of Oceanography at the University of California. He and other scientists worked on the mapping project. He says they turned to space to look deeper into the ocean. He spoke to VOA on SKYPE.

“The way we’re doing that is to use a satellite altimeter (高度计), a radar to map the topography (地貌) of the ocean surface. Now that seems sort of strange that you’d map the topography of the ocean surface when you really want to get at the sea floor. But, the ocean surface topography has these bumps and dips due to gravitational effects that mimic what’s on the sea floor.”

The scientists collected and studied information from two satellites. Some of the data came from the European Space Agency’s Cryo-2 satellite. It was placed in Earth’s orbit to watch sea ice. The other satellite is the American space agency’s Jason-1. It is studying the surface of the oceans. Scientists combined the satellite data with images gathered by sonar ( 声呐：利用声波探测水下物体的装置或系统) equipment on ships. Sonar works by sending sound waves through the water. When the sound waves hit an object, its presence is confirmed.

“That enables us to look at smaller-scale features and also features that are buried by sediments in the ocean basins.”

The new map shows the sea floor as it has never been seen before. It shows thousands of underwater mountains and places where continents pulled apart. It shows where earthquakes were active many years ago. They all are buried deep underneath the ocean floor.

In one place, three mountain ridges join at the same area. Huge tectonic (构造的) plates can be seen clearly there.

1.The passage is likely to _____.

A. be an advertisement　　　　　　　　　　　　 B. appear on VOA

C. make a comment on radar　　　　　　　　　　 D. appear on SKYPE

2.What will be mentioned in the following paragraph, according to the last paragraph? _____.

A. The detailed information about the place.

B. The more important thing in the ocean.

C. The things buried in the ocean.

D. Scientists told SKYPE they will explore at the same area.

3.Scientists collected and studied information by _____.

A. the European Space Agency’s Cryo-2 satellite

B. the American space agency’s Jason-1

C. sonar equipment on ships

D. the Cryo-2 and the Jason-1

4. What’s the best title of the passage? _____.

A. Scientists Create New Maps of Ocean Floor

B. Scientists Knows More Oceans Than Mars

C. Oceans Will Provide Us With Maps

D. People Knows Easily About Mars

高三英语阅读理解困难题查看答案及解析

____ from the moon, our earth with water ____ seventy percent of its surface, appears as a blue ball.

A. Seen; covered     B. Seeing; covering     C. Seen; covering     D. Seeing; covered

高三英语单项填空简单题查看答案及解析

_______ is even important is ______ as the earth cooled down, water began to appear on its surface.

A. That, that            B. What, that                     C. What, what         D. It, that

高三英语单项填空简单题查看答案及解析

Water, which covers about 74 percent of the earth’s surface, is man’s most precious resource. Without it we cannot live. Clean water keeps us alive; polluted water means disease and death. Keeping our water pure is by no means an easy task but it is something that must be done.

Hong Kong once prided herself on being the “Fragrant Harbour”. However, these days, it is not certain if Hong Kong’s harbour could still be called “fragrant”. For, like many other places, Hong Kong has not been spared water pollution. A visit to Tolo and Victoria Harbour, or any of the beaches in Hong Kong is enough to make one aware of the ugly truth that Hong Kong waters are indeed polluted.

The great threat to our water is bacteria pollution. Another great source of water pollution is poisonous chemicals. These substances, which are found in industrial waste and agricultural pesticides, make up unseen dangers that enter biological food chains.

Pollution control is a continuing problem for the government. It is believed that the most effective form of control is legislation（立法）. Most importantly, the present laws on pollution should be given more force. On the other hand, no amount of legislation can effectively control pollution unless those concerned are properly educated about the danger posed by pollution.

While a great majority of Hong Kong citizens and residents seem to be greatly concerned about ways to control water pollution, it is discouraging to note that there are, in our midst, some people who remain apathetic（无动于衷）about the problem. In a recent radio programme conducted on what people in the streets thought about the water pollution problem, one apparently unconcerned person said, “What do I care about water pollution? I don’t drink polluted water. As long as the water I drink is not polluted, I’m not bothered. Water pollution is too big a problem and let’s leave it to the government.”

If all residents in Hong Kong will take such an indifferent attitude, all the government’s attempts to control pollution, let alone the anti-pollution legislation, will prove useless. The best form of pollution control each citizen can employ is to be aware of his surroundings. We hope that someday, the problem of water pollution in Hong Kong will cease to alarm us.

1.By the underlined sentences, the writer wants to show that ______.

A. we should not use polluted water

B. it is our responsibility to keep our water clean and safe

C. clean water is vitally important to the survival of human beings

D. water is abundant but very expensive

2.What can you infer from the second paragraph?

A. Hong Kong indeed deserves the name.

B. Hong Kong never deserves such a name.

C. Hong Kong can’t avoid the damage of pollution.

D. Hong Kong has failed to live up to such reputation.

3.The writer quotes the words in the programme to show us that a block to the solution of the problem is _________.

A. people’s lack of education

B. people’s I-don’t-care attitude

C. people’s wait-and-see attitude

D. people’s over-dependence on the government

4.In the final analysis, the best approach to the problem of water pollution is ________.

A. legislation

B. rapid development of modern science

C. mass education

D.everybody taking care of his own surroundings

高三英语阅读理解困难题查看答案及解析

As we all know, Lost in Thailand is a very successful movie, the cost of ______ is only 30 million yuan.

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

高三英语单项填空中等难度题查看答案及解析

As we all know, Lost in Thailand is a very successful movie, the cost of ______ is only 30 million yuan.

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

高三英语单项填空简单题查看答案及解析

Qingdao lies in the east of Shandong Province. As we all know, it is an important port city and it is an economic and 1.　 (culture) center. It is also home to the Tsingtao Brewery and the 2. (large) international beer festival in China. Of course Qingdao is a very beautiful city, too. Many places around the city are well worth 　 3. (visit). Every year, the festival 　 4. (hold) on schedule. Millions of visitors 　 5.　 come from the world go to the city during the festival.

It is very convenient to go to Qingdao. It is 　 6. (rough) 560 kilometers from Beijing with an average travel time of one hour and 10 minutes by air and five hours by high-speed train. It is 693 kilometers from Shanghai, and 　 7.　 (take) about one hour and 25 minutes by air. There are also frequent direct 　 8. 　 (flight) from Qingdao to the Republic of Korea and Japan. The city’s airport is connected 　 9. 61 domestic cities and 16 overseas cities, with more than 3,000 planes arriving 10.　 　 taking off each week. Warmly welcome to Qingdao！

高三英语语法填空中等难度题查看答案及解析

　　　　 from the moon, our earth with water 　　　　 seventy percent of its surface, appears a blue ball.

A. Seen; covered　 B. Seen; covering

C. To see; covering　　 D. Seeing; covered

高三英语单项填空中等难度题查看答案及解析