Washington: NASA has announced evidence that Jupiter's largest moon, Ganymede, has a saltwater ocean under its icy surface. The ocean seems to have more water than all the water on Earth's surface, according to new Hubble observation.

New Hubble observations of Ganymede's magnetic field strongly suggest that the moon, which is the largest in our whole solar system, is home to a subsurface ocean.

Scientists estimate the ocean is 95 kilometres thick, which is about 10 times deeper than Earth's oceans. But unlike our salty waters, Ganymede's ocean is buried under 150 kilometres of ice.

While scientists have speculated(推测) since 1970s about the presence of an ocean on Ganymede------the largest moon in our solar system------ until now the only observational evidence came from a brief flyby by the Galileo spacecraft, which didn’t observe the moon long enough to confirm a liquid ocean.

This discovery marks an important milestone, highlighting what only Hubble can accomplish. In its 25 years in orbit, Hubble has made many scientific discoveries in our own solar system. A deep ocean under the icy surface of Ganymede opens up further exciting possibilities for life beyond Earth.

Scientists have already confirmed the existence of an ocean on Europe, another moon orbiting Jupiter, and NASA has announced plans to send an unmanned mission there searching for the life that might come with liquid water.

Hubble is a telescope that orbits Earth, but because of its impressive gravitational analyses it can be used to study the inside of far distant planets. Using these same principles, scientists could theoretically detect oceans on distant planets as well.

1.What can we learn about the Ganymede from the passage?

It is a planet with the largest moon in our whole solar system.

B. Its ocean adds to people’s excitement about life beyond Earth.

C. It will be used by NASA as a base for the Hubble telescope.

D. Its liquid ocean was first proved by the Galileo spacecraft.

2.Which of the following best describes the writer’s attitude towards Hubble?

A. Cautious B. Doubtful

C. Negative D. Favourable

3.What does the underlined part in Paragraph 6 mean?

An underground ocean has been found in Europe.

B. The presence of an underground ocean in Europe is not possible.

C. It is now certain that there is an ocean on Europe.

D. No evidence has shown the existence of an ocean on Europe.

4.What type of writing does this passage belong to?

A. A term essay

B. A news report

C. An experiment report

D. An exploration review.

Katharine Meyer Graham was once described as “the most powerful woman in America.? She was not a government official or elected representative. She owned and published The Washington Post. Under her leadership, it became one of the most important newspapers in the country.

Katharine Meyer was born in New York City in 1917. Her father was a successful investment banker and became an important financial official. Her family was very rich. Katharine grew up in large houses in New York and Washington. Her parents were often away from home, traveling and working, Katharine was often lonely. Katherine Meyer graduated from the University of Chicago in Illinois in 1938. In 1933, her father bought a failing newspaper, The Washington Post. It was the least successful one of five newspapers in Washington.

Katharine Graham returned to Washington and got a job editing letters to the editor of her father's newspaper. She married Philip Graham. He was a clerk for Supreme Court Justice Felix Frankfurter but soon accepted a job at his wife's father's newspaper. Mr. Graham improved The Washington Post. He bought Newsweek and several television stations. He also established close ties with important political leaders. However, Mr. Graham treated his wife badly. He had an affair with a young reporter. For many years, Mr. Graham suffered from mental illness. He killed himself in 1963.

Katharine Graham had four children to raise and a newspaper to operate. At first, she was only concerned about finding a way to keep control of The Washington Post until her sons were old enough. She did not think she had the ability to do an important job. She had no training in business or experience in operating a large company. In those days, it was unusual for a woman to be the head of a business. Women were expected to look after their homes and children.

Katharine Graham met with officials of the Washington Post. She was elected president of the Washington Post Company. She had no idea about how to operate a newspaper. So she decided to learn. She began by hiring Benjamin C.Bradlee. He later became chief editor. Mr. Bradlee improved the newspaper. He hired excellent reporters and editors. They began doing important investigative reporting. In 1969, Mrs. Graham became publisher as well as president of the Washington Post Company. In the 1970s, the Washington Post became famous around the world because of two major successes.

1.Katharine Graham is considered powerful because____________.

A. she was born of a very rich family

B. she had the most important newspaper.

C. she was in charge of the The Washington Post

D. she gained much money from newspapers

2.We can infer from the second paragraph that Katharine Graham_____________.

A. was one of the top students at university

B. helped her father in purchasing the paper.

C. didn’t take interest in managing a bank.

D. lived a rich life when she was young.

3.After Katharine Graham got married___________.

A. her husband gave up his previous job.

B. she got a job editing letters for the editor

C. she made The Washington Post improved.

D. her husband wanted to be a political leader

4.Faced with the death of Mr. Graham________________.

A. the four children felt lonely and hopeless

B. Katharine Graham made up her mind to raise the kids.

C. Katharine Graham thought more about gaining experience.

D. Katharine Graham seemed to be trapped in the dark world.

5.What do you think of Benjamin C. Bradlee?

A. He was an expert when it comes to earning money

B. He brought The Washington Post back to life

C. He intended to buy The Washington Post.

D. He should have given more help to Katharine Graham.

完形填空

阅读下面短文,从短文后各题的A、B、C、D四个选项中,选出适合填入对应空白处的最佳选项, 并在答题卡上将该选项涂黑。

Perhaps because I was city kid, my exposure to wildlife was limited. That when I moved to the wooded hills of Oregon many years later. For the first time, I animal communities.

One evening, a nursing raccoon (浣熊) with four kids . She extended her tiny paw asking for some food. I was attracted by their cuteness, so I put out a serving of fresh cat food and water. She the next evening. And the next.

All was well until the wildlife began behaving . The raccoons started crying noisily. They could be throughout the entire valley. A few days later, our homeowners association (业主协会) newsletter arrived in the mail. Among the announcements of garage sales came a gentle reminder that feeding the wildlife was not a(n) thing to do.

My face became red with as I read the letter. I’d been found out! I was now identified as the maker!

I went downstairs to discuss the matter with my husband. “I’m not that the association has come up with a policy about it. They must have gotten ,” he said.

“OK, I’m going to feeding the animals,” I said.

Although I told myself that the wildlife around me would without cat food, I felt guilty. Late that night, I walked slowly into the kitchen for a snack. Then a scene outside my attention: There, on the hillside, was my neighbor. She was two deer in the cold.

Another animal , I thought. Even well-intentioned neighborhood associations can’t control our human impulse (冲动) to with wild creatures and the natural world.

1.A. happened B. grew C. changed D. started

2.A. built B. met C. caught D. ignored

3.A. appeared B. waited C. shouted D. slept

4.A. even if B. only if C. if only D. as if

5.A. secretly B. instantly C. directly D. suddenly

6.A. remained B. left C. settled D. returned

7.A. wildly B. politely C. stupidly D. naturally

8.A. seen B. recognized C. heard D. hunted

9.A. special B. usual C. simple D. exact

10.A. suitable B. noble C. valuable D. enjoyable

11.A. disappointmentB. embarrassment C. sadness D. eagerness

12.A. decision B. tool C. trouble D. policy

13.A. surprised B. satisfied C. delighted D. concerned

14.A. requirements B. expectations C. agreements D. complaints

15.A. stop B. keep C. delay D. consider

16.A. survive B. practice C. suffer D. compete

17.A. escaped B. attracted C. deserved D. avoided

18.A. pulling B. washing C. protecting D. feeding

19.A. trainer B. watcher C. lover D. owner

20.A. connect B. play C. live D. work

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