A black hole is created when a large star bur...

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 solid that a teaspoon of matter from it weighs billion of pounds.

The more the star shrinks(收缩), 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(吞噬) 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(挤压). 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!

1.When the star begins to die ______.

A. there is no fuel left in it　　 B. a huge explosion will happen

C. its outer layer goes into space first　　 D. it doesn't give off light any longer

2.Which of the following doesn't help produce a black hole?

A. The dying star shines very brightly.

B. The light can't go out of the star.

C. The star becomes smaller and smaller

D. The gravity inside the star is very strong.

3.The black hole ______.

A. continues becoming smaller and smaller all the time

B. goes into another universe and becomes a white hole

C. will appear at another place at a different time

D. can pull in everything we know of in the world

4.What's the best title for this passage?

A. A New Scientific Discovery: Black Holes　　 B. What Are Black Holes?

C. What Are Black Holes? How Do Black Holes Come Into Being?　　 D. Travel Through A Black Hole

高一英语阅读理解中等难度题查看答案及解析

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 solid that a teaspoon of matter from it weighs billions of pounds.

The more the star shrinks(收缩), 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(吞噬) 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(挤压). 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!

1.When the star begins to die ______.

A. there is no fuel left in it　　 B. a huge explosion will happen

C. its outer layer goes into space first　　 D. it doesn't give off light any longer

2.Which of the following doesn't help produce a black hole?

A. The dying star shines less brightly.

B. The light can't go out of the star.

C. The star becomes smaller and smaller

D. The gravity inside the star is very strong.

3.The black hole ______.

A. continues becoming smaller and smaller all the time

B. goes into another universe and becomes a white hole

C. will appear at another place at a different time

D. can pull in everything we know of in the world

4.What's the best title for this passage?

A. A New Scientific Discovery: Black Holes

B. What Are Black Holes?

C. How Do Black Holes Swallow Light?

D. Travel Through A Black Hole

高一英语阅读理解中等难度题查看答案及解析

Astronomers and scientists think that a black hole is a region of space ______ which matter has fallen and _______ which nothing can escape.

A．into; from                             B．towards; towards

C．out of; from                           D．through; through

高一英语单项填空中等难度题查看答案及解析

I’d like to have these documents _______ in a minute.

A. sorting out　　　　　　 B. sorted out

C. to be sorting out　　 D. sort out

高一英语单项填空中等难度题查看答案及解析

You will have an accident if you don’t ______, for the road is icy.

高一英语单项填空简单题查看答案及解析

Standing inside ____ lots of strange creatures with white skin and large black eyes.

高一英语单项填空困难题查看答案及解析

I could feel the judging eyes of my family burning a hole into the back of my head as I picked up my phone. All of a sudden, the chattering in the living room died and all I could hear was the sound of the turkey sizzling (发出嘶嘶声) in the oven.

“Look at her! She’s been on her phone all day long! It’s all your fault! Children will never respect elders if they are not taught how to behave! ” my grandmother shouted.

I was very shocked and angry! I opened my mouth to say something, but words failed me and I just sat down quietly on the chair like a mouse in its trap. I thought “Here we go again.” I truly love my family and I would do anything for them. I also know that they would do anything for me as well. However, there are moments that make me feel like they are just stuck with me. They all agree on one thing: technology is wrecking me.

If I am going to be treated like a child or completely ignored, I will most likely not enjoy your company, and I feel like this applies to (适用于） the majority of the people. So I sometimes simply shut myself in my room and listened to the voices coming from the living room, thinking: They all grew up in a world so different that it amazes me how they have actually gotten this far. They did not have phones or any type of advanced technology, which is both good and bad. Bad because they had almost no type of fast communication, and good because they were forced to interact (互动) with one another, which is something today’s society is lacking in. However, maybe if they made an effort to be aware of how things work nowadays, they would not be so against everything.

1.What happened when the author picked up her smart phone?

A. Her family laughed at her.　　 B. Her family kept silent.

C. She felt like having headache.　　 D. She smelt something burning.

2.The underlined word in the third paragraph probably means ________.

A. punishing　　 B. encouraging

C. ruining　　 D. saving

3.We can infer from the passage that the author felt it hard ________.

A. to do something to please her family

B. to satisfy her family’s high expectation

C. to get along with her family in some way

D. to move out or break away from her family

4.The author uses the last paragraph to show that ________.

A. it is important to strengthen understanding among the family

B. it is necessary to treat each other well in the family

C. it is hard for the older people to accept the advanced technology

D. it is her duty to provide her family with a happier life in the future

高一英语阅读理解困难题查看答案及解析

I could feel the judging eyes of my family burning a hole into the back of my head as I picked up my phone. All of a sudden, the chattering in the living room died and all I could hear was the sound of the turkey sizzling (发出嘶嘶声) in the oven.

“Look at her! She’s been on her phone all day long! It’s all your fault! Children will never respect elders if they are not taught how to behave! ” my grandmother shouted.

I was very shocked and angry! I opened my mouth to say something, but words failed me and I just sat down quietly on the chair like a mouse in its trap. I thought “Here we go again.” I truly love my family and I would do anything for them. I also know that they would do anything for me as well. However, there are moments that make me feel that they are just stuck with me. They all agree on one thing: technology is wrecking me.

If I am going to be treated like a child or completely ignored, I will most likely not enjoy your company, and I feel that this applies to (适用于) the majority of the people. So I sometimes simply shut myself in my room and listened to the voices coming from the living room, thinking: They all grew up in a world so different that it amazes me how they have actually gotten this far. They did not have phones or any type of advanced technology, which is both good and bad. Bad because they had almost no type of fast communication, and good because they were forced to interact (互动) with one another, which is something today’s society is lacking in. However, maybe if they made an effort to be aware of how things work nowadays, they would not be so against everything.

1.What happened when the author picked up her smart phone?

A. Her family laughed at her.　　 B. Her family kept silent.

C. She felt like having a headache.　　 D. She smelt something burning.

2.The underlined word in the third paragraph probably means ________.

A. punishing　　 B. encouraging

C. destroying　　 D. saving

3.We can infer from the passage that the author felt it hard ________.

A. to do something to please her family

B. to satisfy her family’s high expectation

C. to get along with her family in some ways

D. to move out or break away from her family

4.The author uses the last paragraph to show that ________.

A. it is important to strengthen understanding among the family

B. it is necessary to treat each other well in the family

C. it is hard for the older people to accept the advanced technology

D. it is her duty to provide her family with a happier life in the future

高一英语阅读理解困难题查看答案及解析

When she was collecting rubbish in the morning， the cleaner saw a tall man in a black coat______outside the office．

A. waiting B. waited

C. wait D. to wait

高一英语单项填空简单题查看答案及解析

We were driving on the right road when, all of a sudden, a black car pulled out of a parking space right in front of us. My taxi driver stepped on his brake, skidded(打滑), and missed the black car’s back end by just inches! The driver of the black car, who almost caused a major accident, turned his head angrily and started shouting bad words at us.

My taxi driver just smiled and waved at the guy. I mean, my taxi driver was friendly. So, I said, “Why did you just do that? This guy almost ruined your car and sent us to hospital!” And the following is what my taxi driver told me, which I now call “the law of the Garbage Truck”.

“Many people are like garbage(垃圾) trucks. They run around full of garbage, full of anger, and full of disappointment. As their garbage piles up, they need a place to dump(倾卸)it. And if you let them, they dump it on you. When someone wants to dump on you, don’t take it personally. Just smile, wave, wish him well, and move on. Believe me. You’ll be happier.”

So this is “The Law of the Garbage Truck”. I started thinking: How often do I let “Garbage Trucks” run right over me? And how often do I take their garbage and spread it to other people at work, at home, or on the streets? It was then that I said, “I’m not going to do it any more.”

I began to see “Garbage Trucks”. I see the load they’re carrying. I see them coming to drop it off. And like my taxi driver, I don’t make it a personal thing; I just smile, wave, and move on.

Good leaders know they have to be ready for their next meeting. Good parents know that they have to welcome their children home from school with hugs and kisses. What about you? The mark of a successful person is how quickly he can get back his focus on what’s important.

1.Who acted like a garbage truck in the accident described in the first two paragraphs?

2.The reason why the taxi driver just smiled and waved at the guy is that ______.

3.The underlined part “the load” in Paragraph 5 refers to _____.

4.What is the main idea of the last paragraph?

高一英语阅读理解中等难度题查看答案及解析