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  When Babbage was working at Cambridge, a new idea occurred to him.He wanted to construct a calculating machine to work out the solutions(解法)to maths problems not only with correctness but also with a speed beyond the power of any human mind.His machine could solve problems involving(涉及)long rows of figures in one continuous operation(运算).

  In 1822 Babbage exhibited his invention and won a prize from the government.After that, he immediately started to work on a larger machine designed to solve more difficult problems.Although he received some money left by his father, the money was not enough to support his design.He wrote to the government about his plan and was given £2500 to start with, a sum worth much more in those days than it is now.

  Babbage continued his work in London for four years.Then his health broke down, and he had to take a long holiday abroad.When he returned to London in 1828, he was at the end of his resources.Many bills remained unpaid.His chief assistant and co-workers quarreled with him and left with many expensive tools.For one year no work was done.During this period, Babbage, whose mind was always active, suddenly thought of a completely new idea for the machine.He rushed to meet the government officials to explain his new idea.But this time, they were unwilling to help him.For eight years, they refused to say whether they wanted the machine or not, and their final answer was “No”.

  From 1828 to 1839, Babbage held the position of professor at Cambridge very successfully.But his greatest work was the unfinished calculating machine which stood covered in dust in his house.It was the beginning of the modern computer.

(1)

The machine Babbage designed would solve difficult maths problems ________.

[  ]

A.

in one operation with few mistakes

B.

in more than one operation without any mistakes

C.

in more than one operation with slight mistakes

D.

in one operation without any mistakes

(2)

Babbage failed to continue his research work in 1828 mainly because ________.

[  ]

A.

he was in poor health

B.

he almost ran out of money

C.

his co-workers argued with him

D.

he spent all his money on his bills

(3)

Babage explained his new idea to the government officials, expecting that ________.

[  ]

A.

they would agree to his plan

B.

they would pay for his new idea

C.

they would support him with money

D.

they would exhibit his new design

(4)

From the passage, we can infer that ________.

[  ]

A.

Babbage failed to be a famous scientist at Cambridge

B.

Babbage always had new ideas but gave them up easily

C.

Babbage always needed support from the government officials

D.

Babbage was the first designer of the modern computer

答案:1.D;2.B;3.C;4.D;
解析:

(1)

这是一道细节判断题。从第一段“He wanted to construct a calculating machine to work out the solutions(解法)to maths problems not only with correctness but also with a speed beyond the power of any human mind”可知。

(2)

这是一道细节判断题。根据第三段可知他没有继续工作是因为缺乏资金。

(3)

这是一道推断题,从文章第三段“He rushed to meet the government officials to explain his new idea.But this time, they were unwilling to help him.”可知。

(4)

这是一道细节判断题。从文章最后一句“It was the beginning of the modern computer.”可知。


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科目:高中英语 来源:设计必修一英语北师版 北师版 题型:050

阅读理解

How Long Can People Live?

  She took up skating at age 85, made her first movie appearance at age 114, and held a concert in the neighborhood on her 121st birthday.

  Whe n it comes to long life, Jeanne Calment is the world’s recordholder.She lived to the ripe old age of 122.So is 122 the upper limit to the human life span(寿命)?If scientists come up with some sort of pill or diet that would slow aging, could we possibly make it to 150-or beyond?

  Researchers don’t entirely agree on the answers.“Calment lived to 122, so it wouldn’t surprise me if someone alive today reaches 130 or 135,”says Jerry Shay at the University of Texas.

  Steve Austad at the University of Texas agrees.“People can live much longer than we think,”he says.“Experts used to say that humans couldn’t live past 110.When Calment blew past that age, they raised the number to 120.So why can’t we go higher?”

  The trouble with guessing how old people can live to be is that it’s all just guessing.“Anyone can make up a number,”says Rich Miller at the University of Michigan.“Usually the scientist who picks the highest number gets his name in Time magazine.”

  Won’t new anti-aging techniques keep us alive for centuries?Any cure, says Miller, for aging would probably keep most of us kicking until about 120.Researchers are working on treatments that lengthen the life span of mice by 50 percent at most.So, if the average human life span is about 80 years, says Miller,“adding another 50 percent would get you to 120.”

  So what can we conclude from this little disagreement among the researchers?That life span is flexible(有弹性的),but there is a limit, says George Martin of the University of Washington.“We can get flies to live 50 percent longer,”he says.“But a fly’s never going to live 150 years.”

  “Of course, if you became a new species(物种),one that ages at a slower speed, that would be a different story,”he adds.

  Does Martin really believe that humans could evolve(进化)their way to longer life?“It’s pretty cool to think about it,”he says with a smile.

(1)

What does the story of Jeanne Calment prove to us?

[  ]

A.

People can live to 122.

B.

Old people are creative.

C.

Women are sporty at 85.

D.

Women live longer than men.

(2)

According to Steve Austad at the University of Texas, ________.

[  ]

A.

the average human life span could be 110

B.

scientists cannot find ways to slow aging

C.

few people can expect to live to over 150

D.

researchers are not sure how long people can live

(3)

Who would agree that a scientist will become famous if he makes the wildest guess at longevity?

[  ]

A.

Jerry Shay.

B.

Steve Austad

C.

Rich Miller

D.

George Martin

(4)

What can we infer from the last three paragraphs?

[  ]

A.

Most of us could be good at sports even at 120.

B.

The average human life span cannot be doubled.

C.

Scientists believe mice are aging at a slower speed than before.

D.

New techniques could be used to change flies into a new species.

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