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In summer, millions of people will head for the beach.And while the ocean can be a great place to swim and play, it may also be useful in another way.Some scientists think that waves could help make electricity.
“Have you ever been on a surfboard or boat and felt yourself being lifted up by a wave? Or have you jumped in the water and felt the energy as waves crashed over you?” asked Jamie Taylor of the Wave Energy Group at the University of Edinburgh in Scotland.“There is certainly a lot of energy in waves.”
Scientists are working on using that energy to make electricity.
Most waves are created when winds blow across the ocean.“The winds start out by making little ripples (波纹) in the water, but if they keep on blowing , those ripples get bigger and bigger and turn into waves, ”Taylor said.“Waves are one of nature’s ways of picking up energy and then sending it off on a journey.”
When waves come towards the shore, people can set up dams or other barricades to block the water and send it through a large wheel called a turbine (涡轮) .The turbine can then power an electrical generator (发电机) .
The United States and a few other countries have started doing research on wave energy , and it is already being used in Scotland.
The resource is huge.We will never run out of wave power, besides, wave energy does not create the same pollution as other energy sources, such as oil and coal.
Oceans cover three quarters of the earth’s surface.That would make wave power seem perfect for creating energy around the world.There are some drawbacks, however.
Jamie Taylor said that wave power still cost too much money.He said that its effects on animals in the sea were still unknown.Plus, wave power would get in the way of fishing and boat traffic.
With more research, however, “many of these problems might be overcome,” Taylor said.“Demand for energy to power our TVs and computers, drive our cars, and heat and cool our homes is growing quickly throughout the world.Finding more energy sources is very important, for traditional sources of energy like oil and gas may run out some day.”
In the future, when you turn on a light switch, an ocean wave could be providing the electricity!
1.Which of the following is NOT true?
A.Wave power doesn’t cost too much money.
B.Wave energy is so clean that it doesn’t create the same amount of pollution as other energy sources.
C.Wave power affects fishing and boat traffic.
D.Wave power may affect marine animals.
2.We can infer from the passage that ______.
A.finding more new energy sources is not necessary because of wave energy
B.wave energy is a resource that will never run out and is used all over the world
C.wave power is not quite perfect for creating energy around the world
D.wave power doesn’t create any pollution
3.The underlined word “drawbacks” probably means ______.
A.regrets B.adventures C.disadvantages D.difficulties
4.What can be the best title for the passage?
A.How to Get Electricity by Waves
B.The advantages of Wave Energy
C.Can Waves Make Electricity?
D.The Disadvantages of Wave Energy
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I had an experience some years ago, which taught me something about the ways in which people make a bad situation worse by blaming themselves. One January, I had to hold two funerals on successive days for two elderly women in my community. Both had died “full of years”, as the Bible would say. Their homes happened to be near each other, so I paid condolence (吊唁) calls on the two families on the same afternoon.
At the first home, the son of the deceased (已故的) woman said to me, “If only I had sent my mother to Florida and gotten her out of this cold and snow , she would be alive today. It’s my fault that she died.” At the second home, the son of the other deceased woman said, “If only I hadn’t insisted on my mother’s going to Florida, she would be alive today. That long airplane ride, the sudden change of climate, was more than she could take. It’s my fault that she’s dead.”
You see that any time there is a death, the survivors will feel guilty. Because the course of action they took turned out badly, they believe that the opposite course — keeping Mother at home, putting off the operation — would have turned out better. After all, how could it have turned out any worse?
There seem to be two elements involved in our willingness to feel guilty. The first is our pressing need to believe that the world makes sense, that there is a cause for every effect and a reason for everything that happens. That leads us to find patterns and connections both where they really exist and where they exist only in our minds.
The second element is the view that we are the cause of what happens, especially the bad things that happen. It seems to be a short step from believing that every event has a cause to believing that every disaster is our fault. The roots of this feeling may lie in our childhood.
A baby comes to think that the world exists to meet his needs, and that he makes everything happen in it. He wakes up in the morning and summons the rest of the world to its tasks. He cries, and someone comes to attend to him. When he is hungry, people feed him, and when he is wet, people change him. Very often, we do not completely outgrow that childish view that our wishes cause things to happen.
1.The author had to hold the two women’s funerals probably because .
A.he wanted to comfort the two families |
B.he was an official from the community |
C.he had great pity for the deceased |
D.he was priest of the local church |
2.People feel guilty for the deaths of their loved ones because .
A.they couldn’t find a better way to express their sorrow |
B.they believe that they were responsible |
C.they had neglected the natural course of events |
D.they didn’t know things often turn out in the opposite direction |
3.According to the passage, the underlined part in paragraph 4 probably means that .
A.everything in the world is predetermined |
B.the world can be interpreted in different ways |
C.there’s an explanation for everything in the world |
D.we have to be sensible in order to understand the world |
4.What’s the main idea of the passage?
A.Life and death is an unsolved mystery. |
B.Every story should have a happy ending. |
C.Never feel guilty all the time because not every disaster is our fault. |
D.In general, the survivors will feel guilty about the people who passed away . |
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It must have been around nine o'clock when I drove back home from work because it was already dark. As I came near to the gates I turned off the head lights of the car so as to prevent the beam from swinging (摆动) through the window and waking Jack, who shared the house with me. But I needn't have done so. I noticed that his light was still on, so he was awake anyway—unless he had fallen asleep while reading. I put the car away and went up the steps.
Then I opened the door quietly and went to Jack's room. He was in bed awake, but he didn't even turn towards me.
“What's up, Jack﹖” I asked.
“For God's sake, don't make a noise,” he said.
The way he spoke reminded me of someone in pain who is afraid to talk in case he does himself serious injury.
“Take your shoes off, Neville,” Jack said.
I thought that he must be ill and that I had better give way to him to keep him happy. “There is a snake here,” he explained. “It's asleep between the sheets. I was lying on my back reading when I saw it.I knew that moving was out of the question. I could not have moved even I'd wanted to.” I realized that he was serious. “I was depending on you to call a doctor as soon as you came home,” Jack went on. “It has not bitten me yet but I dare not do anything to upset it. It might wake up. I'm sick of this,” he said.“I took it for granted that you would have come home an hour ago.”
There was no time to argue or apologize for being late.I looked at him as encouraging as I could and went to telephone the doctor.
1.When he got home, Neville found that _____.
A.Jack had fallen asleep while reading B.Jack had been reading for some time
C.Jack's light was not turned off D.Jack was ready to answer the doctor
2.The underlined phrase in Paragraph 6 means _____.
A.impossible B.no problem C.no doubt D.without difficulty
3.Which of the following is NOT true according to the passage﹖
A.Neville and Jack lived in the same house.
B.Neville thought that Jack had fallen ill.
C.Neville really believed that Jack was not making a joke.
D.Neville refused to argue or to make an apology for being late.
4.The reason why Neville thought that Jack must be ill is that Jack ____.
A.asked Neville to take off his shoes
B.made a gesture to show the presence of the snake
C.was afraid to upset the snake sleeping between the sheets
D.behaved strangely as if he were badly hurt
5.According to the passage, Neville should have been home at ____.
A.7 p.m. B.8 p.m. C.9 p.m. D.6 p.m.
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As John moved his bicycle out of the driveway, he heard his mom shout, “Don’t forget to lock it!” He thought to himself that she was such a 36 . Really, what could 37 at that little library in the small prairie(大草原)town?
The day, 38 most that summer, was bright and hot. As he 39 , sweat trickled(滴下) down. When he arrived at the library, he leaned his bike 40 the railing(栏杆) and, 41 his mother’s advice, didn’t bother to 42 it.
The library was extremely 43 , filled with the distinct smell of books. 44 in the stacks(堆), John spent longer than he’d imagined 45 just the right book. He waited patiently for his 46 , and watched 47 the librarian fed his card through the recorded machine.
As he went out of the library, he saw his bike 48 down the sidewalk. Walking beside it was a boy, perhaps fifteen years old.
“Hey! That’s my bike! What do you think you’re doing? Give it 49 .”
“Give it back! You’re 50 . It’s not yours.”
John felt 51 with this boy and his words that the bike was his own. What could he do? He wasn’t at all sure 52 to deal with him.
At that moment, John surprised himself. 53 a step toward the boy, he took 54 of his bike. “This bike is mine. You’ll have to give it back to me.” 55 by his determination, the boy let him go. John jumped on and rode home as quickly as he dared. He felt a little strange, however, and a bit older somehow, but he couldn’t quite put his finger on why.
36. A. housewife B. mother C. worrier D. talker
37. A. happen B. steal C. lose D. take
38. A. as B. with C. of D. like
39. A. went B. rode C. ran D. drove
40. A. to B. on C. at D. against
41. A. remembering B. thinking C. reminding D. ignoring
42. A. lock B. place C. mind D. care
43. A. hot B. warm C. cool D. cold
44. A. Missed B. Run C. Seated D. Lost
45. A. to choose B. choosing C. to search D. searching
46. A. turn B. chance C. book D. Bike
47. A. as B. because C. since D. while
48. A. move B. moving C. moved D. being moved
49. A. in B. out C. up D. back
50. A. laughing B. smiling C. cheating D. joking
51. A. angry B. glad C. sorry D. content
52. A. what B. how C. when D. whether
53. A. Walking B. Making C. Going D. Taking
54. A. hand B. lift C. hold D. finger
55. A. scared B. surprised C. worried D. disappointed
查看习题详情和答案>>I had an experience some years ago, which taught me something about the ways in which people make a bad situation worse by blaming themselves. One January, I had to hold two funerals on successive days for two elderly women in my community. Both had died “full of years”, as the Bible would say. Their homes happened to be near each other, so I paid condolence(吊唁) calls on the two families on the same afternoon.
At the first home, the son of the deceased(亡故的)woman said to me, “If only I sent my mother to Florida and gotten her out of this cold and snow, she would be alive today. It’s my fault that she died. ”At the second home, the son of the other deceased woman said, “If only I hadn’t insisted on my mother’s going to Florida, she would be alive today. That long airplane ride, the sudden change of climate, was more than she could take. It’s my fault that she’s dead.”
You see that any time there is a death, the survivors will feel guilty. Because the course of action they took turned out bad, they believe that the opposite course keeping Mother at home, putting off the operation would have turned out better. After all, how could it have turned out any worse?
There seem to be two elements involved in our willingness to feel guilty. The first is our pressing need to believe that the world makes sense, that there is a cause for every effect and a reason for everything that happens. That leads us to find patterns and connections both where they really exist and where they exist only in our minds.
The second element is the view that we are the cause of what happens, especially the bad things that happen. It seems to be a short step from believing that every event has a cause to believing that every disaster is our fault. The roots of this feeling may lie in our childhood.
A baby comes to think that the world exists to meet his needs, and that he makes everything happen in it. He wakes up in the morning and summons the rest of the world to his tasks. He cries, and someone comes to attend to him. When he is hungry, people feed him, and when he is wet, people change him. Very often, we do not completely outgrow that childish view that our wishes cause things to happen.
1.The author had to conduct the two women’s funerals probably because____.
A.he was minister of the local church |
B.he wanted to comfort the two families |
C.he was an official from the community |
D.he had great pity for the deceased |
2.People feel guilty for the death of their loved ones because ____.
A.they couldn’t find a better way to express their sorrow. |
B.they had neglected the natural course of events |
C.they believed that they were responsible |
D.they didn’t know things often turn in the opposite direction |
3.According to the passage, the underlined part in paragraph 4 probably means that _____
A.everything in the world is predetermined |
B.there’s an explanation for everything in the world |
C.the world can be interpreted in different ways |
D.we have to be sensible in order to understand the world |
4. What’s the idea of the message?
A.Life and death is an unsolved mystery |
B.Never feel guilty all the time because not every disaster is our fault |
C.Every story should have a happy ending |
D.In general, the survivors will feel guilty about the people who passed away |
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