A black hole is a place in space where gravity pulls so much that even light cannot get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying.

Because no light can get out, people can’t see black holes. Space telescopes with special tools can help find black holes. The special tools can see how stars that are very close to black holes act differently from other ones.

Black holes can be big or small. Scientists think the smallest black holes are as small as just one atom. These black holes are very tiny but have the mass of a large mountain. Mass is the amount of matter, or “staff”, in an object.

Another kind of black hole is called “stellar”(星球黑洞). Its mass can be up to 20 times more than the mass of the sun. There may be many stellar mass black holes in Earth’s galaxy. Earth’s galaxy is called the Milky Way.

The largest black holes are called “supermassive”(超大質(zhì)量黑洞). These black holes have masses that are more than one million suns together. Scientists have found proof that every large galaxy contains a supermassive black hole at its center. The supermassive black hole at the center of the Milky Way galaxy has a mass equal to about four million suns and would fit inside a very large ball that could hold a few million Earths.

Scientists think the smallest black holes formed when the universe began. Stellar black holes are made when the center of a very big star falls in upon itself, or falls apart. When this happens, it exploded part of the star into space. Scientists think supermassive black holes were made at the same time as the galaxy they are in.

A black hole can not be seen because strong gravity pulls all of the light into the middle of the black hole. But scientists can see how the strong gravity affects the stars and gas around the black hole. Scientists can study stars to find out if they are flying around, or orbiting a black hole.

When a black hole and a star are close together, high-energy light is made. This kind of light cannot be seen with human eyes. Scientists use satellites and telescopes in space to see the high-energy light.

1.The gravity of a black hole may become so strong that light cannot get out when ____________.

A. the star is going to die          

B. special tools are used on it

C. other stars come close to it      

D. it is seen from the space telescopes

2.According to the passage, which of the following is NOT true?

A. A black hole can be very tiny but extremely heavy.

B. The gravity of a black hole holds all light in its center.

C. Scientists observe high-energy light through their own eyes.

D. Some small black holes came into being as early as the universe.

3.The underlined word “galaxy” in Paragraph 5 means __________.

A. a black hole                       B. the Milky Way

C. a series of stars                    D. a planet near the earth

4.What does the last sentence in Paragraph 5 suggest?

A. Neither the sun nor the earth is as heavy as a black hole.

B. There is a supermassive black hole at the center of the Milky Way.

C. The supermassive black hole had existed before the Milky Way was formed.

D. There is a reason why the large black holes are called “supermassive”.

5.The last two paragraph mainly focus on the question of _________.

A. what a black hole is        

B. how black holes form

C. how big black holes are    

D. how scientists know about black holes

 

【答案】

 

1.A

2.C

3.C

4.D

5.D

【解析】

試題分析：文章介紹黑洞的形成，它的特點(diǎn)以及科學(xué)家探索研究黑洞的方法。

1.細(xì)節(jié)題：根據(jù)文章第一段中“This can happen when a star is dying.”可知恒星的死亡可能會(huì)形成黑洞。故選A。

2.細(xì)節(jié)題：根據(jù)第三段中“These black holes are very tiny but have the mass of a large mountain”這些黑洞可能會(huì)非常小，但是有一座山一樣的質(zhì)量，可知A正確；根據(jù)倒數(shù)第二段中“A black hole can not be seen because strong gravity pulls all of the light into the middle of the black hole.”黑洞不可見(jiàn)是因?yàn)閺?qiáng)大的引力將所有的光線吸進(jìn)黑洞的中間，可知B項(xiàng)正確；根據(jù)最后一句“Scientists use satellites and telescopes in space to see the high-energy light.”科學(xué)家們使用衛(wèi)星和太空望遠(yuǎn)鏡查看高能光，可知科學(xué)家不是用自己的眼睛，因此C錯(cuò)誤；根據(jù)第六段中“Scientists think the smallest black holes formed when the universe began.”科學(xué)家認(rèn)為最小的黑洞在宇宙開(kāi)始時(shí)形成，可知D項(xiàng)正確。故選C。

3.推理題：根據(jù)第四段中“Earth’s galaxy is called the Milky Way”地球所在的星系叫銀河系，常理可知星系是有很多星星組成的。故選C。

4.推理題：根據(jù)第五段最后一句“The supermassive black hole at the center of the Milky Way galaxy has a mass equal to about four million suns and would fit inside a very large ball that could hold a few million Earths.”在銀河系中心的超大質(zhì)量黑洞的質(zhì)量相當(dāng)于四百萬(wàn)個(gè)太陽(yáng),是一個(gè)可以容納幾百萬(wàn)地球在內(nèi)的巨大的球，由此可知這是在解釋什么叫做“超大質(zhì)量黑洞”。故選D。

5.推理題：閱讀最后兩段內(nèi)容可知是在介紹科學(xué)家是如何找到黑洞的。故選D。

考點(diǎn)：考查科普教育類(lèi)閱讀

 

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源：江蘇省南通市通州區(qū)2010屆高三聯(lián)考試卷（英語(yǔ)） 題型：閱讀理解

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（彎曲）towards a smile, much to the attraction of the young man.
“It is so foolish,” she stammered（結(jié)結(jié)巴巴地說(shuō)）; “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

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：江蘇省南通市通州區(qū)2010屆高三重點(diǎn)熱點(diǎn)專項(xiàng)練習(xí) 題型：閱讀理解


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（彎曲）towards a smile, much to the attraction of the young man.
“It is so foolish,” she stammered（結(jié)結(jié)巴巴地說(shuō)）; “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：高中英語(yǔ) 來(lái)源：2013-2014學(xué)年福建省高三上學(xué)期11月學(xué)段考試英語(yǔ)試卷（解析版） 題型：閱讀理解

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(威嚴(yán)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，譏笑) was now so obvious and strong that, despite her general discomfort at being here, her rosy lips curved(彎曲) 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

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

第三部分：閱讀理解（共20小題；每小題2分,滿分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(彎曲) towards a smile, much to the attraction of the young man.

"It is so foolish," she stammered(急急巴巴地說(shuō)); "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：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

  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(彎曲) towards a smile, much to the attraction of the young man.

‘It is so foolish’, she stammered(結(jié)結(jié)巴巴地說(shuō)); ‘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; ‘a(chǎn)nd, 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

查看答案和解析>>

同步練習(xí)冊(cè)答案