When Albert Einstein was young, he was a quiet child who spent much of his time alone.He was slow to talk and had difficulty in learning to read.
When Albert was five years old, his father gave him a compass(指南针).Albert was filled with wonder when he discovered that the compass needle(针)always pointed in the same direction-the north.He asked his father and uncle what caused the needle to move.
Their answers were difficult for Albert to understand.Yet he spent a lot of time thinking about them.He said later that he felt something must be behind things.
Albert did not like school.The German schools of that time were not pleasant.Students couldn抰 ask questions.Albert said he felt as if he were in prison.
One day Albert told his uncle Jacob how much he hated school, especially mathematics.His uncle told him to solve mathematical problems by pretending to be a policeman."You are looking for someone," he said, "but you do not know who he is.Call him X.Find him by using your mathematical tools."
Albert learned to love mathematics.He was studying the complex mathematics of calculus(微积分学)while all his friends were still studying simple mathematics.Instead of playing with friends he thought about things such as "What would happen if people could travel at the speed of light?".
Albert wanted to teach mathematics and physics.He graduated with honors, but it was a pity that he could not get a teaching job.
(1)
Why did Albert Einstein hate school?
[ ]
A.
He couldn抰 play with his friends there.
B.
Students were not allowed to ask questions.
C.
The schools were like prisons at that time.
D.
He had to learn mathematics that he didn抰 like.
(2)
What does the underlined word "complex" probably mean?
[ ]
A.
Useful.
B.
Difficult
C.
Boring.
D.
Interesting.
(3)
We can learn from the passage that _________.
[ ]
A.
Einstein became a mathematics teacher after graduation
B.
Einstein gradually loved mathematics with his uncle抯 help
C.
learning mathematics is like working as a policeman
D.
Einstein liked playing with other children
(4)
What is the main idea of the passage?
[ ]
A.
How Albert Einstein studied in school.
B.
Something about Albert Einstein抯 early interests.
C.
Something about the young Albert Einstein.
D.
Why Albert Einstein learned more than his classmates.
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.