-It is surprising to meet an old friend in a foreign country. - A. How pleasant surprise B. What pleasant surprise C. What a pleasant surprise D. How a pleasant surprise 题目和参考答案——青夏教育精英家教网—

题目内容

—It is surprising to meet an old friend in a foreign country.

—　　

A. How pleasant surprise　　 B. What pleasant surprise

C. What a pleasant surprise 　　 D. How a pleasant surprise

答案：C
解析：

surprise 是可数名词。how和what构成的感叹句how+adj.（adv．）+S+P，what+a+（adj．）+n （s）+s+p。

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An annoying problem for humans, who like to boast (夸耀) about all the distant planets and moons we have explored, is that we've never taken a good look right under our noses．The inside of the earth is relatively close but how can we get there?

The deepest oil well enters a mere six miles into the crust (地壳) (the center of the earth is about 4,000 miles deeper)．Russian scientists dug the deepest hole in Siberia," but bottomed out at about 7.5 miles below the surface．The Mohole project, a U.S．plan in the 1950s, called for drilling a hole 25 miles down to the boundary be??tween the hard rocks of the crust and the soft mantle (地幔)．Sadly the project involved govern??ment supporting.

It gets harder and harder to drill deep into the earth because rocks get softer and softer． Hard but easily broken at the surface, rocks become plastic at depth, and the pressure caused by the weight of the overlaying crust — about 52,800 pounds per square inch at a depth of ten miles, makes further drilling impossible.

What little we know about the inside of the earth (like the fact that there' s a crust, a mantle, and a core) comes from indirect evidence, such as the analysis of earthquakes.

So maybe it' s time for a thorough new method to explore the earth's inside．Scientist David Stevenson says we should forget about drilling holes．Instead, we should open a crack (裂缝)．

Stevenson suggests digging a crack about a half mile long, a yard wide, and a half mile deep (not with a shovel) but with an explosion on the scale of a nuclear bomb．Next, he'd pour a few hundred thousand tons of molten (融化的) iron into the crack, along with a robot．The iron, thicker than the surrounding crust, would move downward at about 16 feet per second, carrying the robot with it and opening the crack deeper and deeper．The iron mass would drop for about a week and 2,000 miles to the outer edge of the earth core, the robot sending out data to the sur??face.

Stevenson compares his idea to space explo??ration．"We're going somewhere we haven't been before," he says．"In all possibility, there will be surprises."

This idea can probably be put in．the drawer marked with Isn't Going To Happen．The robot would have to survive temperatures that would melt pretty much anything．But Stevenson's idea may inspire a new look at an old problem．Great things can come from what seems like impossible ideas.

Going inside the earth is ________ than going into space.

A．more interesting B．more possible C．easier D．more challenging

How deep have we gone into the earth until now?

A．6 miles． B．4,000 miles． C．7.5 miles． D．25 miles.

Which of the following is TRUE about David Stevenson's idea?

A．It is an inspiring but not practical idea now．

B．It is a practical proposal that has come into use now.

C．It is a good proposal that will soon be put into practice.

D．It is a false theory that cannot be carried out at all.

What might be the most suitable title for the text?

A．An Annoying Problem for Humans

B．To the Center of the Earth

C．The Mohole Project

D．David Stevenson' s Proposal

Australian scientists are trying to give kangaroo-style stomachs to cattle and sheep in order to cut he greenhouse gases they send out, which are thought to be responsible for global warming.

Thanks to special bacteria in their stomachs, kangaroo flatulence(肠胃气胀)contains no methane(甲烷)and scientists want to transfer that bacteria to cattle and sheep who produce large quantities of the harmful gas.

While the usual image of greenhouse gas pollution is a billowing smokestack (烟囱) pushing out carbon dioxide, farm animals’ passing wind contribute a surprisingly high percentage of total emissions (排放物)in some countries.

“Fourteen percent of emissions from all sources in Australia are from enteric methane from cattle and sheep,” said Athol Kleve, a senior research scientist with the Queensland state government.

“And if you look at another country such as New Zealand, which has got a much higher agricultural base, they're actually up around 50 percent, ” he said.

Researchers say the bacteria also make the digestive process much more efficient and could potentially save millions of dollars in feed costs for farmers.

But it will take researchers at least three years to isolate (分离) the bacteria, before they can even start to develop a way of transferring it to cattle and sheep.

Another group of scientists, meanwhile, has suggested Australians should farm fewer cattle and sheep and just eat more kangaroos.

The idea is controversial (有争议的), but about 20 percent of health-conscious Australians are believed to eat the national symbol already.

“It's low in fat, it’s got high protein levels and it's very clean in the sense that basically it's the free-range (放养的) animal,” said Peter Amp of the University of New South Wales's institute of environmental studies.

1.Scientists intend to put bacteria into cattle and sheep _________.

A. so that they can make full use of special bacteria

B. to help Australian farmers to earn more money

C. so that they can protect Australian ecosystem

D. to prevent them from sending out harmful gases

2.Athol Kleve seems to believe that ________.

A. cattle and sheep produce more carbon dioxide

B. less cattle and sheep are raised in New Zealand

C. farm animals are responsible for greenhouse gases

D. New Zealand has the most animals in the world

3.What do the underlined words “the idea” in paragraph 9 refer to?

A. Australians should farm fewer cattle and sheep and just eat more kangaroos.

B. The bacteria could make the digestive process much more efficient.

C. Australians should give kangaroo - style stomachs to cattle and sheep.

D. The bacteria could save millions of dollars in feed costs for farmers.

4.Which of the statements is the advantage Peter Amp lists about kangaroo?

A. it is rich in protein B. it is cheaper than beef

C. it is high in fat D. it is more delicious than sheep

三、单词拼写：请根据括号内汉\英语提示或已给的首字母写出单词的正确形式。（1分×10=10分）

1. He e____________ us for hours with his stories and jokes

2. Tibet is a ____________（多山的） province .

3. U______________, my computer system broke down again .

4. The learner of a second language has many difficulties to ___________(克服).

5. We were a____________ that she behave so rudely at the party.

6. The little boy a_________ himself by drawing pictures on the ground .

7. To our surprise , he made no ____________（解释）of his absence.

8. Those who have not known _________ (hungry) can never imagine what it is.

9. The play was so _______ (humour) that the audience laughed all through it.

10. The news that Tom, an excellent student, had ________ (failure) his exams surprised us all.

单词拼写：请根据括号内汉\英语提示或已给的首字母写出单词的正确形式。

1. He e________ us for hours with his stories and jokes
2. Tibet is a ________(多山的) province.
3. U________, my computer system broke down again.
4. The learner of a second language has many difficulties to _______(克服).
5. We were a________ that she behave so rudely at the party.
6. The little boy a_________ himself by drawing pictures on the ground.
7. To our surprise, he made no _________(解释)of his absence.
8. Those who have not known ________ (hungry) can never imagine what it is.
9. The play was so _______ (humour) that the audience laughed all through it.
10. The news that Tom, an excellent student, had ________ (failure) his exams sur-prised us all.