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.The passage is likely to _____.
| A．be an advertisement | B．appear on VOA |
| C．make a comment on radar | D．appear on SKYPE |
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. |
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 |
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 |
A sunflower is a sunflower. A mobile phone is a mobile phone. But can you combine the two to do something for your local environment? As early as next year it may well be possible. When you have finished with your mobile phone you will be able to bury it in the garden or a plant pot and wait for it to flower.
A biodegradable (生物可降解的) mobile phone was, this month, introduced by scientists. It is hoped that the new type of phone will encourage consumers to recycle. Scientists have come up with a new material over the last five years. It looks like any other plastic, but overtime it can break down into the soil without giving out any poisonous chemicals. British researchers used the new material to develop a phone cover that contains a sunflower seed. When this cover turns into waste, it forms nitrates (硝酸盐). These feed the seed and help the flower grow. “We’ve only put sunflower seeds into the cover so far. But we are working with plant experts to find out which flowers would perform best. Maybe we could put roses in next time.” said one scientist.
As phone technology is developing so quickly people are constantly throwing their mobiles away. This means producers are under pressure to find ways of recycling them. Some 650 million mobile phones have been sold this year. Most of them will be thrown away within two years, adding plastic, heavy metal and chemical waste to the environment. A biodegradable cover can offer some relief for nature, according to the scientists. “The seed is released and the flower grows in the pot so you don’t have to concern yourself with the phone when you have finished using it,” said Kerry Kirwan, the leader of the research team.After you have finished using the new type of mobile phone, _______.
| A．the sunflower seed will come out and flower in the pot |
| B．the phone cover will break down very soon in the soil |
| C．it will be recycled by the producers |
| D．it can charge itself with electricity in a green way |
This type of research is done because ________.
| A．the technology of making phones is changing rapidly |
| B．too many waste mobile phones may lead to environmental problems |
| C．nobody has ever thought of recycling mobile phones |
| D．producing mobile phones uses a lot of energy |
We can infer from the story ________.
| A．the new type of mobile phones are already on the market |
| B．the new type of mobile phones will sell extremely well |
| C．the material of the new type of phones is harmful |
| D．other flowers may be used in the new type of mobile phones |
The best title of this passage is .
| A．Recycling our phones |
| B．The phones that flower |
| C．A new material for making phones |
| D．The harm of thrown-away phones |
Parking has long been a major headache for drivers in Shanghai. The Transportation Department is mapping out a new plan for the city’s parking system. There are one million cars on the road in Shanghai but only enough public parking space to provide room for 15 percent of these vehicles. It is no wonder that local drivers get so worried trying to find a place to park.
The city is seeing a rise in private car owners. In March, the city sent out 2,000 private car licenses, the highest number of licenses ever sent out in a month. And prices rose to 14,600 yuan, 500 more than in February. Industry experts say this suggests that local people have a strong, active interest in buying cars.
By the year 2020, the number of automobiles in Shanghai will probably reach two million. If one parking lot is for each car, then a lot of parking space should be built for these vehicles.
Downtown Shanghai is most short of parking space. However, experts point out that simply building more parking lots in downtown areas is not practical and doesn’t provide an ideal solution. The idea of “ Park & Ride” system has been suggested. This means that drivers can leave their vehicles in car parks nearby subway or bus stations and ride public transport to go downtown. Based on this idea, the city will limit the number of parking lots in downtown areas and demand higher parking fees but build more parking areas near main subway and bus stops.The underlined phrase “mapping out” in the first paragraph means __________.
| A．making | B．arguing | C．commanding | D．requesting |
About __________ drivers can find places to park their cars in Shanghai now.
| A．850,000 | B．1,000,000 | C．150,000 | D．2,000,000 |
What can we infer from the second paragraph?
| A．The city sent out more private licenses in February. |
| B．Less and less people bought cars in March. |
| C．The city sent out less private licenses in March. |
| D．More and more people are going to buy cars. |
According to the idea of a “ Park & Ride ” system, the city will __________.
| A．send out more private car licenses |
| B．build more parking lots near bus stops |
| C．encourage people to buy more cars |
| D．build more parking areas downtown |
Students who say they never or hardly ever used dictionaries often speak English well but usually write poorly, because they make many mistakes.
The students who use dictionaries most do not learn especially well either. The ones who look up every new word do not read fast. Therefore they do not have time to read much. Those who use small two-language dictionaries have the worst problems. Their dictionaries often give only one or two words as translations of English. But one English word often has many translations in a foreign language and one foreign word has many translations in English.
The most successful students are those who use large college edition dictionaries with about 100,000 words but do not use them too often. When they are reading, these students first try to get the general idea and understand new words from the context. Then they reread and use the dictionary to look up only key words that they still do not understand. They use dictionaries more for writing. If they are not sure how to spell a word, or divide it into syllables, they always use a dictionary. Also, if they think a noun might have an unusual plural form, they check these in a dictionary.The writer thinks that .
| A．choose a good dictionary, and you’ll be successful in learning English |
| B．dictionaries are not necessary to the students who learn English. |
| C．it is very important for students to use good dictionaries properly |
| D．using dictionaries very often can’t help to improve writing |
According to the passage, which of the following is wrong?
| A．Dictionaries have little effect on learning to speak English. |
| B．Whatever new words you meet while reading, never use dictionaries. |
| C．Small two-language dictionaries have serious disadvantages. |
| D．Reading something for the first time, you’d better not use dictionaries. |
This passage mainly tells us ． .
| A．that students shouldn’t use small two-language dictionaries |
| B．what were the defects of small two-language dictionaries |
| C．why students should use large college edition dictionaries |
| D．what dictionary students should choose and how to use it |
Which is not mentioned in this passage?
| A．How to make good use of a dictionary. |
| B．When to use a dictionary. |
| C．How to improve spoken English. |
| D．How to practise reading fast. |
Looking back on my childhood, I believe that naturalists are born and not made. Although we were all brought up in the same way, my brothers and my sisters soon gave up their flowers and insects. Unlike them, I had no ear for music and languages. I was not an early reader and I could not do maths well.
Before World War I we spent our summer holidays in Hungary. I have only the dim memory of the house we lived in, of my room and my toys. Nor do I remember clearly the large family of grandparents, aunts, uncles and cousins who gathered next door. But I do have a crystal clear memory of the dogs, farm animals, local birds, and above all, insects.
I am a naturalist, not a scientist. I have a strong love for the natural world and my passion has led me into varied explorations. I love discussing my favorite topics and enjoy burning the midnight oil reading about other people’s observations and discoveries. Then something brings these observations together in my mind. This has resulted in my publishing 300 papers and books.
But curiosity, a keen （敏锐的）eye, a good memory and enjoyment of the animal and plant world do not make a scientist. A scientist, up to a point, can be made. A naturalist is born. If you can combine the two, you get the best of both worlds.The first paragraph tells us the writer .
| A．was interested in flowers and insects in his childhood |
| B．lost his hearing when he was a child |
| C．didn’t like his brothers and sisters |
| D．was born into a naturalist’s family |
The writer can’t clearly remember his relatives probably because .
| A．he didn’t live very long with them |
| B．the family was very large |
| C．he was too young when he lived with them |
| D．he devoted himself to observing nature |
It can be inferred from the passage that the writer was .
| A．a scientist as well as a naturalist |
| B．not a naturalist but a scientist |
| C．only a born naturalist |
| D．first of all a scientist |
According to the writer, a born naturalist should first of all be .
| A．good at maths | B．full of passion |
| C．knowledgeable | D．self-controlled |
In 1883, a creative engineer named John Roebling was inspired by an idea to build a great bridge connecting New York with the Long Island. However, bridge building experts thought that this was an impossible project and told Roebling to forget it. But Roebling could not ignore the vision of this bridge. After much discussion and persuasion he managed to convince his son Washington, an engineer, that the bridge could be built.
The father and son developed concepts of how it could be completed and how the difficulties could be overcome. After that, they began to build their dream bridge.
The project started well, but when it was only a few months underway (在进行中) a tragic accident on the site took the life of John Roebling. Washington was also injured and left with a certain amount of brain damage, which made him unable to walk or talk or even move.
Everyone had a negative comment since the Roeblings were the only one who knew how to build the bridge. In spite of these difficulties, Washington was never discouraged and still had a burning desire to complete the bridge. It seemed that there was a message for him not to give up. Suddenly an idea hit him. All he could do was to move one finger and he decided to make the best use of it. By moving it, he slowly developed a code of communication with his wife. Then he used the same method of tapping her arm to tell the engineers what to do. The project was underway again. For 13 years Washington tapped out his instructions with his finger on his wife's arm, until the bridge was finally completed.
Today the Brooklyn Bridge stands in all its glory to the victory of one man's determination not to be defeated by circumstances. This is one of the best examples of a never-say-die attitude that overcomes a terrible physical disability and achieves an impossible goal.
1．When John Roebling had the idea of building the bridge, ________.
A. his son supported him immediately
B. many experts thought it impossible
C. there was no bridge around New York
D. he persuaded the government to support him
2．What is the right order of the following statements?
a. The Roeblings talked about the possibilities of building the bridge.
b. Washington became disabled.
c. John Roebling believed that building the bridge was possible.
d. Washington's wife helped instruct the building.
A. a d c b B. b c d a C. c a b d D. a d b c
3．It can be inferred from the passage that ________.
A. the government did offer much help to building the bridge
B. to go to the long Island, we can go across Brooklyn Bridge now
C. Washington had only one finger after the accident
D. it took 13 years to complete the bridge
4．What is the main idea of the passage?
A. the Roeblings were devoted to their work
B. how the Brooklyn Bridge was built by the Roeblings.
C. a strong will is not to be defeated.
D. success lies in patience and hard work.