题目内容

We're leaving at six o'clock , and hope _____ most of the journey by lunch time .

        A. to do         B. to have done          C. to make       D. to have made

B


解析:

要答对这道题需要两方面的知识。一是不定式的完成体用来表示这个动作发生在谓语动作之前,或是表示该动作的完成。本题中的不定式的完成体表示的正是该动作的完成,因此这句话可改写为:We're leaving at six o'clock , and hope that we will have done most the journey by lunch time . (我们将在六点时动身,希望在午饭前走完大半路程。)第二,知识是与journey连用的不同的动词所具有的不同的内涵。词组to make a journey或to go on a journey 都表示"做一次旅行",在这两个词组里a journey是一个整体,但是如果要表示旅程中的一部分,正确的英语则使用do这个动词,例如:do some / much / most of the journey (走完这个旅程的一部分/大部分/绝大部分)。

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NASA’s Mars detector (探测器), Opportunity, succeeded in finding signs that water once existed on the planet. Opportunity landed on Mars in January. Scientists now believe that the planet could once have supported life.

This discovery was chosen by Science, one of the world’s leading magazines, as the most important scientific achievement of 2004 last Friday.

“This little, wheeled, one-armed box went around another planet and has done something no human has ever managed,” according to Science. “It has discovered another place in the universe where life could once have existed.”

“Although we still can’t say that life could have existed in this environment, it is now certain that there was water on Mars,” said Steve Squyres, one of the scientists working on the Mars mission. The evidence comes from pictures and chemical readings taken by Opportunity. It includes marks on rocks like those caused by flowing water on Earth and salty chemicals like those found in dried-out sea-beds. Scientists said the new evidence proved beyond doubt that water has been existed on Mars. But it is still unknown whether the water on Mars was like an ocean or just ice.

While Opportunity has not found any signs of life, the presence of water means life is possible. “In everything we know about life on Earth, there is no example without liquid water,” Squyres said. “So water is important for the search for life on Mars.”

Researchers agree that a future mission (任务) should bring back physical samples (样品). But some scientists worry about the risk that this could introduce dangerous foreign creatures to Earth. “The problem here is how to get the samples back,” Squyres replied. “I think it is our responsibility to limit any risk.”

1. ________ prove that water existed on Mars.

A. The physical samples with salty chemicals      B. The marks on rocks and salty chemicals

C. Scientific achievements of 2004              D. Creatures from Mars

2. Which of the following is true according to the text?

A. It is now certain that there was water on Mars.

B. The water on Mars was like an ocean.

C. Evidence of life on Mars has been found.

D. Search for life on Mars is a great risk to humans.

3. How did scientists draw the conclusion that there was water on Mars?

A. The world’s leading magazine has announced the fact.

B. Scientists have taken many pictures and chemical readings on the Mars.

C. Astronauts have got some rocks from Mars.

D. Scientists have made a study of the pictures and readings sent back by Mars detector.

4. It can be inferred that, if the creatures from Mars came to Earth, ________.

A. they would be kind to humans    B. they would be cruel to humans

C. they would be a great danger to Earth

D. it would be hard to say whether it would be a good news or bad news

An elderly woman died and several other passengers were critically injured when a crowded Virgin express train crashed in Cumbria last night.

     A huge rescue operation involving RAF helicopters and dozens of ambulances arrive. After passengers were trapped in the train for more than four hours because fallen power line poles made access for emergency workers difficult.

     Authorities reported up to 80 injuries. Thirteen people were taken to hospital in a“critical or serious condition.”

     Between 180 and 200 passengers were on the 5:15pm Virgin service from London Euston to Glasgow Central when all nine carriages left the rails between Oxenholme and Tebay. Witnesses said that the train shook violently before toppling(倾斜) over into an embankment(筑堤)with at least four carriages overturning. Early this morning, authorities confirmed an elderly woman had died and some other passengers had suffered injuries including back strains, head wounds and broken bones.

     Ruth Colton, a passenger on the train, said she was reading a book when the journey became uncomfortable. It seemed that the train was being beaten by heavy winds,“as if we were on a plane”.

     The accident brought concerns that Britain's busiest rail route would be crippled(瘫痪)for some time. The line between Preston and Carlisle was postponed as Virgin Trains promised a rapid investigation into the “serious incident”—the company's first big crash.

     It is understood that the investigation will examine whether there was an obstacle on the track and the possibility of speeding or mechanical breakdown. The driver, who was injured, will be interviewed and a black-box recorder installed in the train will be examined.

What made the rescue come so late?

    A. It's not accessible to reach the accident spot.

    B. No enough helicopters and ambulances could be found at that time.

    C. It was too far from hospital to Cumbria.

    D. No one called the emergency center.

According to the passage, the busiest rail route in Britain is          

    A. From Preston to Carlisle         B. Between Euston and Glasgow

    C. From Oxenholme to Tebay       D. Between Virgin and Pendolino

What does the underlined word “critical”mean?

     A. Important.      B. Careless.     C. Dangerous.      D. Surprising.

Which of the following is the possible cause of the accident?

     A. Careless driving.                 B. Heavy wind.

     C. Over loading.                    D. Obstacle on the track.

We can learn from the passage that Virgin Trains               

     A. made no quick reaction to this accident

     B. seldom had so serious an accident before

     C. had made full preparations for the accident

     D. didn't mind how many passengers the train can hold

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