A black hole is created when a large star burns out. Like our sun, stars are unbelievably hot furnaces(熔炉) that burn their own matter as fuel. When most of the fuel is used up, the star begins to die.
The death of a star is not a quiet event. First there is a huge explosion. As its outer layer is blasted off into space, the dying star shines as brightly as a billion suns.
After the explosion gravity pulls in what’s left of the star. As the outside of the star sinks toward the center, the star gets smaller and smaller. The material the star is made of becomes tightly packed together. A star is so dense that a teaspoon of matter from it weighs billion of pounds.
The more the star shrinks, the stronger the gravity inside it becomes. Soon the star is very tiny, and the gravity pulling it in is unbelievably strong. In fact, the gravity is so strong that it even pulls light into the star! Since all the light is pulled in, none can go out. The star becomes black when there is no light. Then a black hole is born!
That’s what we know about black holes. What we don’t know is this: What happens inside a black hole after the star has been squeezed into a tiny ball? Does it keep getting smaller and smaller forever? Such a possibility is hard to imagine.
But if the black hole doesn’t keep shrinking, what happens to it? Some scientists think black holes are like doorways to another world．They say that as the star disappears from our universe, it goes into another universe. In other words a black hole in our universe could turn into a “white hole” in a different universe. As the black hole swallows light, the white hole shines brightly — somewhere else. But where? A different place, perhaps, or a different time — many years in the past or future.
Could you travel through a black hole? Right now, no. Nothing we know of could go into a black hole without being crushed．So far the time being, black hole must remain a mystery.
Black holes are a mystery—but that hasn’t stopped scientists from dreaming about them. One scientist suggested that in the future we might make use of the power of black holes. They would supply all of Earth’s energy needs, with plenty to spare. Another scientist wondered if a black hole could some day be used to swallow earthly waste—a sort of huge waste disposal (处理) in the sky!
When the star begins to die ______.
A．there is no fuel left in it B．its outer layer goes into space first
C．a huge explosion will happen D．it doesn’t give off light any longer
Which of the following doesn’t help produce a black hole?
A．The gravity inside the star is very strong.
B．The light can’t go out of the star.
C．The star becomes smaller and smaller
D．The dying star shines very brightly.
The black hole ______.
A．continues becoming smaller and smaller all the time
B．goes into another universe and becomes a white hole
C．can pull in everything we know of in the world
D．will appear at another place at a different time
The author mainly intended to tell us _____.
A．A New Scientific Discovery: Black Holes
B．How Black Holes Came Into Being
C．What Black Holes Are
D．Travel Through A Black Hole
云南师大附小一线名师提优作业系列答案
冲刺100分单元优化练考卷系列答案科目：高中英语 来源：江苏省南通市通州区2010届高三联考试卷（英语） 题型：阅读理解
Tess still stood hesitating like a swimmer about to make his dive, hardly knowing whether to return or move forward, when a figure came out from the dark door of the tent. It was a tall young man, smoking.
He had an almost black face, though red and smooth. His moustache was black with curled points, though he could not be more than twenty-three or-four. There was all unusual force in his face, and in his daring rolling eyes.
“Well, my beauty, what can I do for you?” said he, coming forward. And seeing that she was quite at a loss: “Never mind me, I am Mr. d’Urbervilles. Have you come to see me or my mother”
This differed greatly from what Tess had expected. She had dreamed of an aged and dignified face. She tried to keep calm and answered-“I came to see your mother, sir.”
“I am afraid you cannot see her-she is ill in bed,” replied the representative of the house; for this was Mr. Alec, the only son of the noble family. “What is the business you wish to see her about?”
“It isn’t business-it is-I can hardly say what.”
“Pleasure”
“Oh no. Why, sir, if I tell you, it will seem…”
Tess’s sense of a certain ridicule was now so strong that despite her general discomfort at being here, her rosy lips curved（弯曲）towards a smile, much to the attraction of the young man.
“It is so foolish,” she stammered（结结巴巴地说）; “I fear I can’t tell you”
“Never mind; I like foolish things. Try again, my dear,” said he kindly.
“Mother asked me to come,” Tess continued, “and, indeed, I was in the mind to do so myself. But I did not think it would be like this. I came, sir, to tell you that we are of the same family as you.”
“Ho! Poor relations!”
“Yes.”
“Stokes”
“No; d’Urbervilles.”
“Ay, ay; I mean d’Urbervilles.”
“Our names are worn away to Durbeyfield; but we have several proofs that we are d’Urbervilles. The local scholars hold the view that we are, …and…and we have an old seal（印章）and a silver spoon marked with the same castle as yours. So mother said we ought to make ourselves known to you, as we’ve lost our horse by a bad accident; we can hardly make a living.”
“Very kind of your mother, I’m sure.” Alec looked at Tess as he spoke, in a way that made her uneasy. ”And so, my pretty girl, you’ve come on a friendly visit to us, as relations.”
“I suppose I have,” looking less confident and uncomfortable again.
“Well—there’s no harm in it. Where do you live? What are you?”
—Tess of the d’Urbervilles By Thomas Hardy
67. How does Tess feel in the whole course of the meeting with Alec？
A. Excited and hopeful B. Nervous and uncomfortable
C. Surprised but comfortable D. Pleased but embarrassed
68. In the eyes of Tess, Alec is ________.
A. forceful and daring B. unfriendly and talkative
C. a gentle and reliable man D. older than she had expected
69. Why does Tess pay the visit to the d’Urbervilles？
A. To see Alec himself.
B. To see Alec’s mother.
C. To confirm that they are of the same family.
D. To make known their relationship and seek help.
70. Alec appears quite friendly to Tess mainly because ________.
A. Tess is his distant relation B. Tess looks polite to him
C. Toss is a pretty girl D. Tess looks ridiculous
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科目：高中英语 来源：江苏省南通市通州区2010届高三重点热点专项练习 题型：阅读理解
D
Tess still stood hesitating like a swimmer about to make his dive, hardly knowing whether to return or move forward, when a figure came out from the dark door of the tent. It was a tall young man, smoking.
He had an almost black face, though red and smooth. His moustache was black with curled points, though he could not be more than twenty-three or-four. There was all unusual force in his face, and in his daring rolling eyes.
“Well, my beauty, what can I do for you?” said he, coming forward. And seeing that she was quite at a loss: “Never mind me, I am Mr. d’Urbervilles. Have you come to see me or my mother”
This differed greatly from what Tess had expected. She had dreamed of an aged and dignified face. She tried to keep calm and answered-“I came to see your mother, sir.”
“I am afraid you cannot see her-she is ill in bed,” replied the representative of the house; for this was Mr. Alec, the only son of the noble family. “What is the business you wish to see her about?”
“It isn’t business-it is-I can hardly say what.”
“Pleasure”
“Oh no. Why, sir, if I tell you, it will seem…”
Tess’s sense of a certain ridicule was now so strong that despite her general discomfort at being here, her rosy lips curved（弯曲）towards a smile, much to the attraction of the young man.
“It is so foolish,” she stammered（结结巴巴地说）; “I fear I can’t tell you”
“Never mind; I like foolish things. Try again, my dear,” said he kindly.
“Mother asked me to come,” Tess continued, “and, indeed, I was in the mind to do so myself. But I did not think it would be like this. I came, sir, to tell you that we are of the same family as you.”
“Ho! Poor relations!”
“Yes.”
“Stokes”
“No; d’Urbervilles.”
“Ay, ay; I mean d’Urbervilles.”
“Our names are worn away to Durbeyfield; but we have several proofs that we are d’Urbervilles. The local scholars hold the view that we are, …and…and we have an old seal（印章）and a silver spoon marked with the same castle as yours. So mother said we ought to make ourselves known to you, as we’ve lost our horse by a bad accident; we can hardly make a living.”
“Very kind of your mother, I’m sure.” Alec looked at Tess as he spoke, in a way that made her uneasy. ”And so, my pretty girl, you’ve come on a friendly visit to us, as relations.”
“I suppose I have,” looking less confident and uncomfortable again.
“Well—there’s no harm in it. Where do you live? What are you?”
—Tess of the d’Urbervilles By Thomas Hardy
67. How does Tess feel in the whole course of the meeting with Alec？
A. Excited and hopeful B. Nervous and uncomfortable
C. Surprised but comfortable D. Pleased but embarrassed
68. In the eyes of Tess, Alec is ________.
A. forceful and daring B. unfriendly and talkative
C. a gentle and reliable man D. older than she had expected
69. Why does Tess pay the visit to the d’Urbervilles？
A. To see Alec himself.
B. To see Alec’s mother.
C. To confirm that they are of the same family.
D. To make known their relationship and seek help.
70. Alec appears quite friendly to Tess mainly because ________.
A. Tess is his distant relation B. Tess looks polite to him
C. Tess is a pretty girl D. Tess looks ridiculous
查看答案和解析>>
科目：高中英语 来源：2013-2014学年福建省高三上学期11月学段考试英语试卷（解析版） 题型：阅读理解
A tall figure appeared from the dark door of the tent. It was a smoking young man about twenty three or four. He had an almost black face, though smooth. His moustache was black with curled points. There was an unusual force in his face, and in his daring rolling eyes. cef
Rebecca still stood hesitating like a swimmer about to make his dive, hardly knowing whether to return or move forward.
"Hi, my beauty, what can I do for you?" said he, approaching. Realizing that she was quite at a loss, the man spoke in a gentle voice, "Never mind. I am Mr. Thackeray. Have you come to see me or my mother?"
This scene differed greatly from what Rebecca had expected. She had dreamed of an aged and dignified(威严的) face. She told herself to be calm and answered "I came to see your mother, sir."
"I am afraid you cannot see her-she is ill in bed," replied the representative of the house; for this was Mr. Alee Thackeray, the only son of the noble family. "What is the business you wish to see her about?"
"It isn't business-it is-I can hardly say what!"
"Pleasure?"
"Oh no. Why, sir, if I tell you, it will seem..."
Rebecca's sense of a certain ridicule(奚落，讥笑) was now so obvious and strong that, despite her general discomfort at being here, her rosy lips curved(弯曲) towards a smile, much to the attraction of the young man.
"It is so foolish", she murmured. "I fear I can't tell you!"
"Never mind; I like foolish things. Try again, my dear," said he kindly.
"Mother told me to come," Rebecca continued; "and, indeed, I was in the mind to do so myself. But I did not expect it would turn out like this. I came…sir, I came to tell you that we are of the same family as you."
"Ho Ho! Poor relations?"
"Yes."
"Rossetti?"
"No. Thackeray."
"Ay, ay; I mean Thackeray."
"Our names are worn away to Durbeyfield; but we have several proofs that we are Thackeray. The local scholars hold the view that we are, and...and we have an old seal and a silver spoon marked with the same castle as yours. So mother said we ought to make ourselves known to you, as we've lost our horse by a bad accident. We can hardly make a living."
"It’s very kind of your mother, I'm sure." Alec looked at Rebecca as he spoke, in a way that made her uneasy. "And so, my pretty girl, you've come on a friendly visit to us, as relations?"
"I suppose I have," looking less confident and uncomfortable again.
"Well, there's no harm in it. I mean it doesn’t hurt to come and make yourself known to me. Where do you live? What are you?" …
1.While meeting with Alec, Rebecca feels _______during the whole course.
A. nervous and uneasy
B. excited and hopeful
C. amazed and comfortable
D. pleased but embarrassed.
2.Which of the following is suitable to describe Rebecca’s impression of Alec?
A. unfriendly and ta lkative
B. forceful and daring
C. gentle and reliable
D. older than expected
3.What is Rebecca’s real purpose of making this visit?
A. To see Alec himself.
B. To see Alec's mother.
C. To confirm that they are of the same family.
D. To make known their relationship and seek help.
4.From the passage, we can conclude that Alec appears quite friendly to Rebecca largely because __________.
A. Rebecca is his distant relation
B. Rebecca looks polite to him
C. Rebecca is a pretty girl
D. Rebecca looks ridiculous
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科目：高中英语 来源： 题型：阅读理解
第三部分：阅读理解（共20小题；每小题2分,满分40分）
Tess still stood hesitating like a swimmer about to make his dive, hardly knowing whether to return or move forward, when a figure came out from the dark door of the tent. It was a tall young man, smoking.
He had an almost black face, though red and smooth. His moustache was black with curled points, though he could not be more than twenty, three or four. There was an unusual force in his face, and in his daring rolling eyes.
"Well, my beauty, what can I do for you?" said he, coming forward. And seeing that she was quite at a loss: "Never mind me. I am Mr. d'Urberville. Have you come to see me or my mother?"
This differed greatly from what Tess had expected. She had dreamed of an aged and dignified face. She tried to keep calm and answered, "I came to see your mother, sir."
"I am afraid you cannot see her—she is ill in bed," replied the representative of the house; for this was Mr.Alee, the only son of the noble family."What is the business you wish to see her about?"
"It isn't business—it is— I can hardly say what!"
"Pleasure?"
"Oh no. Why, sir, if I tell you, it will seem—"
Tess's sense of a certain ridicule was now so strong that, despite her general discomfort at being here, her rosy lips curved(弯曲) towards a smile, much to the attraction of the young man.
"It is so foolish," she stammered(急急巴巴地说); "I fear I can't tell you!"
"Never mind; I like foolish things. Try again, my dear," said he kindly.
"Mother asked me to come," Tess continued; 'and, indeed, I was in the mind to do so myself. But I did not think it would be like this.I came, sir,to tell you that we are of the same family as you."
"Ho! Poor relations?"
"Yes."
'Stokes?'
"No; d'Urbervilles."
"Ay, ay; I mean d'Urbervilles."
"Our names are wom away to Durbeyfield; but we have several proofs that we are d'Urbervilles. The local scholars hold the view that we are,and we have an old seal(印章) and a silver spoon marked with the same castle as yours. So mother said we ought to make ourselves known to you, as we've lost our horse by a bad accident; we can hardly make a living."
"Very kind of your mother, I'm sure.' Alec looked at Tess as he spoke, in a way that made her uneasy. 'And so, my pretty girl, you've come on a friendly visit to us, as relations?"
"I suppose I have," looking less confident and uncomfortable again.
"Well-there's no harm in it. Where do you live? What are you?"
—Tess of the d'Urbervilles By Thomas Hardy
61. How does Tess feel in the whole course of the meeting with Alec?
A. Excited and hopeful. B. Nervous and uncomfortable.
C. Surprised but comfortable. D. Pleased but embarrassed.
62. In the eyes of Tess, Alec is _______________.
A. forceful and daring B. unfriendly and talkative
C. a gentle and reliable man D. older than she had expected
63. Why does Tess pay the visit to the d'Urbervilles?
A. To see Alec himself.
B. To see Alec's mother.
C. To confirm that they are of the same family.
D. To make known their relationship and seek help.
64. Alec appears quite friendly to Tess mainly because __________.
A. Tess is his distant relation B. Tess looks polite to him
C. Tess is a pretty girl D. Tess looks ridiculous
查看答案和解析>>
科目：高中英语 来源： 题型：阅读理解
Tess still stood hesitating like a swimmer about to make his dive, hardly knowing whether to return or move forward, when a figure came out from the dark door of the tent. It was a tall young man, smoking.
He had an almost black face, though red and smooth. His moustache was black with curled points, though he could not be more than twenty-three or –four. There was an unusual force in his face, and in his daring rolling eyes.
‘Well, my beauty, what can I do for you?’ said he, coming forward. And seeing that she was quite at a loss: ‘Never mind me. I am Mr. d’Urberville. Have you come to see me or my mother?’
This differed greatly from what Tess had expected. She had dreamed of an aged and dignified face. She tried to keep calm and answered---
‘I came to see your mother, sir.’
‘I am afraid you cannot see her---she is ill in bed,’ replied the representative of the house; for this was Mr. Alec, the only son of the noble family. ‘What is the business you wish to see her about?’
‘It isn’t business---it is ---I can hardly say what!’
‘Pleasure?’
‘Oh no. Why, sir, if I tell you, it will seem--- ’
Tess’s sense of a certain ridicule was now so strong that, despite her general discomfort at being here, her rosy lips curved(弯曲) towards a smile, much to the attraction of the young man.
‘It is so foolish’, she stammered(结结巴巴地说); ‘I fear I can’t tell you!’
‘Never mind; I like foolish things. Try again, my dear,’ said he kindly.
‘Mother asked me to come,’ Tess continued; ‘and, indeed, I was in the mind to do so myself. But I did not think it would be like this. I came, sir, to tell you that we are of the same family as you.’
‘Ho! Poor relations?’
‘Yes.’
‘Stokes?’
‘No; d’Urbervilles.’
‘Ay, ay; I mean d’Urbervilles.’
‘Our names are worn away to Durbeyfield; but we have several proofs that we are d’Urbervilles. The local scholars hold the view that we are, ---and ---and we have an old seal(印章) and a silver spoon marked with the same castle as yours. So mother said we ought to make ourselves known to you, as we’ve lost our horse by a bad accident; we can hardly make a living.’
‘Very kind of your mother, I’m sure.’ Alec looked at Tess as he spoke, in a way that made her uneasy. ‘And so, my pretty girl, you’ve come on a friendly visit to us, as relations?’
‘I suppose I have,’ looking less confident and uncomfortable again.
‘Well---there’s no harm in it. Where do you live? What are you?’
---Tess of the d’Urbervilles By Thomas Hardy
63. How does Tess feel in the whole course of the meeting with Alec?
A. Excited and hopeful. B. Nervous and uncomfortable.
C. Surprised but comfortable. D. Pleased but embarrassed.
64. In the eyes of Tess, Alec is ______.
A. forceful and daring B. unfriendly and talkative
C. a gentle and reliable man D. older than she had expected
65. Why does Tess pay the visit to the d’Urbervilles?
A. To see Alec himself.
B. To see Alec’s mother.
C. To confirm that they are of the same family.
D. To make known their relationship and seek help.
66. Alec appears quite friendly to Tess mainly because ______.
A. Tess is his distant relation B. Tess looks polite to him
C. Tess is a pretty girl D. Tess looks ridiculous
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