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A

When some plates of the earth move suddenly, an earthquake happens. Many earthquakes begin under the sea. In fact, earthquakes may happen anywhere on the earth. They often happen near mountains.

During an earthquake, the shakings make rocks rise suddenly and even crack(断裂)open. Houses fall, people are killed or hurt, and sometimes the whole villages or cities are destroyed.

Can we do something to keep ourselves safe from earthquakes? Scientists have studied earthquakes and made maps that show“earthquake belts(带)”. In these belts, it’s possible for earthquakes to happen. In these areas we can build strong houses to fight against earthquakes.

In the future, scientists will be able to predict exactly(精确预报)when and where an earthquake will happen. They can also tell people what to do and how to do it.

1. It is said a large number of earthquakes often happen         .

A. next to mountains     B. in the day time   C. on land    D. at night

2. In the future we’ll be no longer so afraid of an earthquake       .

A. because of a map showing the“earthquake belts”

B. because we can guess the date and place of an earthquake

C. as scientists will know what to do and how to do it

D. both B and C

3. Which is the best title of the passage?

A. A Scientist and an Earthquake  B. An Earthquake

C. How to Fight against Earthquake     D. Earthquakes Today and Tomorrow

 

【答案】

1---3  ADB   

【解析】略

 

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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

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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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