What did scientists learn about earthquakes at the Rocky Mountain Arsenal？
A) They occur at about 4,000 metres below ground level.
B) The injection of water into earthquake faults prevents earthquakes from occurring.
C) They are usually caused by the oil in the faults.
D) Harmful earthquakes earl be possibly prevented by causing small, harmless earthquakes.
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更多“What did scientists learn abou…”相关的问题
第1题
11. A. what be studied B. what should study C. what to study D. what studied
12. A. In three years B. For three years C. After three years D. Three years
13. A. never would be B. would be never C. would not be ever D. would never be
14. A. I didn't either B. Nor I did C. So didn't I D. Also didn't I
15. A. Not al1 B. Neither C. Nor D. Both
16. A. since B. while C. before D. whereas
17. A. understand B. recognize C. suggest D. inform
18. A. speaking B. to say C. to speak D. saying
19. A. a lot B. much C. a bit D. more
20. A. as B. being C. to be D. but
第2题
And even social decay in general－so much so that the promise of technology is obscured’． That promise is a cleaner and healthier worl
D．If wise applications of science and technology do not lead to a better world,what else will． A．Another distinction between science and technology has to do with the progress in each．
B．Unlike science,progress in technology must be measured in terms of the human factor．
C．What scientists discover may shock or anger people－as did Darwin’s theory of evolution．
D．Science and technology are different．
E．We are all familiar with the improper use of technology．
F．Science is a method of answering theoretical questions; technology is a method of solving practical problems． 第 46 题 请选择处的最佳答案．
第3题
Language is always changing.The earliest known languages had complicated grammar but a small, limited vocabulary.Over the centuries, the grammar changed, and the vocabulary grew.For example, the English and Spanish people who came to America during the sixteenth and seventeenth centuries gave names to all the new plants and animals they found.In this way, hundreds of new words were introduced into English and Spanish vocabularies.Today life is changing very fast, and language is changing fast, too.
There are several major language families in the world.Some scientists say there are nine main families, but other scientists divide them differently.The languages in each family are related, and scientists think that they came from the same parent language.
We learn our own languages by listening and copying.We do this without studying or thinking about it.But learning a foreign language takes a lot of study and practice.
(1).What do all languages in the world have？
A.Complicated vocabularies
B.Single grammar
C.Large vocabularies
D.A system of sounds
(2).What does the earliest known languages have？
A.Different word orders
B.Difficult grammar
C.Difficult vocabularies
D.Easy sound system
(3).What did the English and Spanish people who came to America do？
A.They gave names to different animals
B.They found many new plants and animals
C.They changed the grammar of English and Spanish
D.They introduced new words into English and Spanish
(4).Scientists think that the languages in each family_________________________.
A.are related
B.should be divided differently
C.should be separated
D.are not very different
(5).According to the passage, we learn our own language by_________________________.
A.thinking about it
B.practicing it
C.listening and copying
D.studying it
第4题
one of the bacon best - known books was his essays .each essay was a short piece of writing in which he tried to give a lesson by discussing sides of a subject such as studying , conversation , friends and healthful living .in many of his books , bacon explained
how scientists should study things as they realy exist in nature and then try to figure out what caused a particular thing to be as it is .later , by doing experiments , the scientist could see that any cause would always have the same result .this method , which is called inductive（归纳）reasoning , is used by al the scientists today , but it was new in bacon 's time .
54.Which of the folowing is true ?（）
A.Francis Bacon was the most important philosopher of England .
B .Francis Bacon had good education .
C.Francis Bacon worked for a French ambassador at the age of 15.
D.Francis Bacon stayed in France until he was 23.
55.Francis Bacon was famous for（）.
A.inventing the scientific method of studying things in nature
B.his books
C.his essays
D.being a member of parliament
56.His essay gave many useful lessons on（）
A.studying
B.conversation
C.friends and healthful living
D.all of the above
57.“ Inductive reasoning ” means（）.
A.to discover general laws from particular facts or examples
B.to reach a conclusion by reasoning from general laws to a particular case
C.to study things as they used to be
D.to study things in a particular way
58.Which of the following is NOT true ?（）
A.Bacon was a learned man .
B.Bacon did a lot for philosophy .
C.the inductive reasoning was widely used both today and in bacon's time
D.Bacon gave scientists much useful advice .
第5题
A.Not until…have
B.Until…did
C.Not until…do
D.Until…have
第6题
Dr。 Ben Carsen grew up in a poor single parent house-hold in Detroit。 His mother， who had only a 3rd grade education helds two jobs cleaning bathrooms。 To his classmates and even to his
teachers he was thought of as the dummest kid in his class。 According to his own not so fond memories。
He had a terrible temper， and once threatened to kill another child。 Dr。 Carsen was headed down part of seld distraction until a critical moment in his youth。 His mother convinced that he had to do something dramatic preventing leading a life of failure laid down some rules。 He could not
watch television except for two programs a week， could not play with his friends after school
until he finished his homework。 And had to read two books a week， and write book reports about them。 His mother’s strategy worked。 “Of course， I didn’t know she couldn’t read。 So there I was
submitting these reports。” he said。 She would put check marks on them like she had been reading them。 As I began to read about scientists，economists and philosophers。 I started imaging myself in their shoes。 As he got into the hobbit of hard work， his grade began to soar。 Ultimately he received a scholarship to attending Yale
University， and later he was admitted to the University of Michigan Medical School。
He is now a leading surgeon at Johns Hopkins Medical School and he is also the author of the three books。
Questions 23 to 25 are based on the conversation you’ve just heard。
Q23 What do we learn about Ben Carsen ？
Q24 What did Ben Caren’s classmates and teachers think of him whenhe was first at school？
Q25 What did Ben Carsen’s mother tell him to do when he was a school boy？
第7题
According to the writer, how did the young scientists feel before the flight？
A．sick
B．keen
C．nervous
D．impatient
第8题
At the beginning, how did many scientists view Peppeberg's work？
A． It would reveal a creature's mind.
B． It would probably end in failure.
C． It would be hard to judge its value.
D． It would be a long-term project.
第9题
1.In the 19th century, scientist found that a person would lose the power to do certain things()
A、when he got weaker in health
B、if certain parts of his brain were hurt
C、after he did a quite different job
D、when he grew older
2.Scientists today are still unable to show exactly()
A、what each part of the brain is doing
B、how many chemical changes take place in the brain each second
C、whether each part of the brain does the same job
D、which part of the brain is the most important
3.It has been found that one's brain usually works ()
A、faster when he is old
B、a little now and a little then
C、in a very simple way
D、more complicated than we thought
4.Which of the following is NOT true according to the text？()
A、Scientists are working hard at the researches on the brain.
B、As many as six million chemical changes take place in the brain every minute.
C、A young man doing physical labor is sure to have a much slower min
D、Even an old man may have a quick mind if his brain is given much exercise.
5.The more work we give to our brains()
A、the less result we will gain
B、the more work they are able to do
C、the weaker their power will get
D、the more tired they will feel
第10题
Learning Disabilities
Learning disabilities are very common. They affect perhaps 10 percent of all children. Four times as many boys as girls have learning disabilities.
Since about 1970, new research has helped brain scientists understand these problems better. Scientists now know there are many different kinds of learning disabilities and that they are caused by many different things. There is no longer any question that all learning disabilities result from differences in the way the train is organized.
You cannot look at a child and tell if he or she has a learning disability. There is no outward sign of the disorder. So some researchers began looking at the brain itself to learn what might be wrong.
In one study, researchers examined the brain of a learning-disabled person who had died in an accident. They found two unusual things. One involved cells in the left side of the brain, which control language. These cells normally are white. In the learning disabled person, however, these cells were gray. The researchers also found that many of the nerve cells were not in a line the way they should have been. The nerve cells were mixed together.
The study was carried out under the guidance of Norman Geschwind, an early expert on learning disabilities. Doctor Geschwind proposed that learning disabilities resulted mainly from problems in the left side of the brain. He velieved this side of the brain failed to develop normally. Probably, he said, nerve cells there did not conncts as they should. So the brain was like an electrical device in which the wires were crossed.
Other researchers did not examine brain tissue. Instead, they measured the brain’s electrical activity and made a map of the electrical signals.
Frank Dully experimented with this technique at Children’S Hospital Medical Centre in Boston. Doctor Dully found large differences in the brain activity of normal children and those with reading problems. The differences appeared throughout the brain. Doctor Duffy said his research is evidence that disabilities involve damage to a wide area of the brain, not just the left side.
第41题 Which of the following is NOT mentioned in the passage？____________.
A Learning disabilities may result from the unknown area of the train
B learning disabilities may result from damage to a wide area of the train
C Learning disabilities may result from abnormal organization of the train cells.
D Leaning disabilities may result from problems in the left side of the brain.
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