题目内容


Do you suppose Darwin, one of the greatest scientists of all times, really
did fools' experiments?  
Or did he do experiments that were so simple and basic that other people just thought they were foolish?
Sometimes people think they already know the answer to a question or the solution (解决办法) to a problem. Sometimes they really do know an answer or a solution, but without thinking they are important.
Charles Darwin didn’t settle for (满足于) just thinking he knew something. And, he believed all things could be important however simple they seemed to be.
Suppose you drop two sheets of paper which are exactly the same size and shape. If you drop them at the same time in the same place, they will fall in the same way. Now make one of the sheets of paper into a tight little ball and let it drop along with the other sheet. What happens? You have done an experiment that is so simple that you might think it couldn't be worth anything.
But this simple experiment is important. It explains part of our present-day understanding of physics ideas that were worked out long ago by Galileo and Newton. And these understandings set aside some of ancient Greek physics.
Science sometimes stops to look at very simple things and to think very hard about them. Even the simplest idea, what we might think is foolish, can shake the foundations (基础) of science.
68. “Sometimes people think they already know the answer to a question.” This means that _________.
A. they are already told the answer
B. the question is so important that everyone should know the answer
C. they are already to answer such a question by others
D. the question is simple enough for them to answer
69. From the passage, we learn that Charles Darwin _________.
A. did many fools' experiments
B. enjoyed doing simple experiments
C. was not satisfied with what he knew
D. tried to prove that Galileo and Newton were sometimes wrong
70. The underlined phrase “set aside” most probably means “________”
A. throw away        B. store up     B. put to use       D. realize
71. The author of the passage tries to ________.
A. convince(使…信服) us that Charles Darwin, Galileo and  Newton are the greatest scientists in the world
B. draw the conclusion that basic sciences are simple things
C. prove that two sheets of paper, with the same size and shape, will fall at the same speed
D. draw our attention to everyday happenings around us


68-71 DCAD

解析

练习册系列答案
相关题目

It was a dark and cold night. The car driver didn’t have even one passenger all day. When he went by the railway station, he saw a young man coming out with two bags in his hands. So he quickly opened the door of the car and asked, “Where do you want to go, sir?”

  “To the Star Hotel,” the young man answered. When the car driver heard that, he didn’t feel happy. The young man would give him only three dollars because the hotel was not far from the railway station. But suddenly, he had an idea. He took the passenger through many streets of the big city.

 After a long time, the car finally arrived at the hotel. “You should pay me fifteen dollars,” the car driver said to the young man. “What! Fifteen dollars? Do you think I’m a fool? Only last week I took a car from the railway station to this same hotel and I only gave the driver thirteen dollars. I know how much I have to pay for the trip. I won’t pay you one dollar more than I paid to the other car driver last week.”

Which of the following is true? ____________

A .The young man went past the railway station. 

B. The young man was working in the railway station

C. The young man had just got off a train.

D. The young man was waiting for his friend there.

What do you think of the car driver?__________

A .He was a nice and clever man.  B. He liked to work very hard.

C. He was good at driving       D. He was not an honest person.

The driver felt very ____when he saw the young man coming out of the railway station.

A .sad  B. sorry  C. happy  D. worried

From the passage we know that the young man__________.

A .Knew clearly how far it was from the station to the hotel.

B. Had been to the hotel several times.

C. didn’t want to stay in this city.

D. must be a stranger and didn’t know the city very well.

当前不少文学作品被改编成电影。有人选择看电影，有人则喜欢读原著。请你以“Film or book, which do you prefer?”为题，按照下列要点写一篇英语短文。

看电影：省时、有趣、易懂

读原著：细节更多，语言优美

我的看法和理由

注意：1. 词数：100-150。文章题目和开头已给出（不计入总词数）。

      2. 参考词汇：原著：original work或book in the original

                    Films or book, which do you prefer?

  Some of us think that it is better to see the film than to read the book in the original.

Here is a question I have often asked at dinner parties:

   You're on an island with only one other person, your best friend. He's dying of cancer. In his final days, he tells you, "I have 100,000 dollars in a bank back home. When I die, make sure my son goes to medical school." Then he dies. But his son is a no-good playboy who has no interest in going to medical school and will waste that money away in a very short time. But your son is entering college, and he is willing to become a doctor. Which one do you give the money to for medical school?

   I've asked this question of everyone from the president of a famous university to an ordinary young soldier, and it has never failed to get a discussion going. Everyone has an opinion, most of them different, but all of them correct. Sometimes this one topic lasts the whole evening.

Which of the following is TRUE to the passage?

   A. Only the clever people can answer the question rightly.

   B. Some people refuse to answer such a silly question.

   C. Everyone at the dinner party seems to be interested in the question.

   D. Most of the people have the same answer.

What the writer often says at dinner parties is _______.

   A. not a true story                  B. a true story

   C. a strange story                   D. just a joke

Why does the writer often ask people such a question? Because ______.

A. he wants to find the answer for a research

B. he is interested in such a question

C. he likes to make fun of people at parties

D. he wants to offer people a topic in which everyone could say something

Which of the following decisions is most likely NOT correct?

A. You give the money to your friend's son.

B. You give the money to your son for medical school.

C. You keep the money for your future medical care.

D. You keep the money for your friend's son.

The Haitian tsunami gave scientists a chance to find out how well vital and potentially life-saving warning systems were working.

       Noaa’s Pacific Marine Environmental Laboratory has developed a warning system that picks up signals of tsunamis directly from the sea-floor.

       It is called Dart-the Deep-ocean Assessment and Reporting of Tsunamis. If seismometers(地震仪) detect an earthquake, the Dart buoys（浮标） will determine what is happening to sea levels, and whether a big wave might be on the way. This information is then sent via satellite to a central location which can organize an alarm. Within 50 minutes of the Haiti earthquake, this system was able to issue an alarm to other countries in the Caribbean to say that a small tsunami had been caused to start, and that was unlikely to affect them.

       Dr Bernard said, “The first 30 minutes following the earthquake, we have to rely on education.” The critical aspects of this are: do you feel the earthquake; do you see the ocean draw down; and do you hear that loud roar? If so, you should run for higher ground.

      

 “But after the first few minutes, it’s crucial that we have the technology—the measurements to avoid unnecessary evacuation(疏散撤离)and tell people when it is safe to return.” Right now, there are 50 of these Dart buoys all over the globe—four of which are in the Caribbean.

Dr Bernard says that, with 75 to 100 buoys worldwide, this system could provide global tsunami warnings within one hour.

 “That’s for everywhere we know that tsunamis have happened. If we wanted to go to half an hour detection, we could probably double or multiply by four times that number,” he said.

       “In some countries, including Haiti, there may not be enough resources to support a specific tsunami warning centre for something that happens so infrequently.”

       He said that this system was relatively inexpensive to fix and operate.

       “To get it down to an hour for everywhere affected would cost $50m initial investment and then 10% of that to maintain it,” he said.

       “That’s not a terribly expensive system considering the potential savings of lives.”

In which section would you probably read the passage in a newspaper?

A. Education and Society                   

B. Culture and Leisure

C. Science and Technology          

D. Health and Medicine

How many buoys would at least be needed for global tsunami warnings within half an hour?

A. 150                 

B. 100                  

C. 75                   

D. 50

Which of the following can be inferred from the passage?

       A. The system can warn people of the coming of tsunami directly after the earthquake.

       B. We can’t escape the danger of tsunami within 30 minutes following the earthquake.

       C. Each country can easily afford a tsunami warning centre though it seldom happens.

       D. It’s worthwhile to spend money on the warning system for possible savings of lives.

Which of the following would be the best title for this passage?

A. Tsunami Assessment               

B. Earthquake detecting

C. Disaster Warning System        

D. Life Saving System

—— Do you think he will do me a favor?

—— As far as I know, he is the last one to help others. He＿＿＿＿be prepared to give you a hand, though.

A. might     B. must     C. can     D. should

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网