Many of us have wondered what Earth is like beneath the surface. So have writers and scientists. In French novelist Jules Verne’s masterpiece Journey to the Center of the Earth, explorers go down to Earth’s center and discover amazing wonders.
But in real life, human beings haven’t even come close to the planet’s core (核心). The core is over 6,000 km down. The deepest hole ever created, according to the BBC, is the Kola Superdeep Borehole in Russia, which only goes 12.3 km down.
So how do we know about everything down below without any samples？
One good way to start is to think about the Earth’s density (密度), Simon Redfern of the University of Cambridge in the UK told the BBC.
“The density of the material on Earth’s surface is much lower than the average density of the whole Earth, so that tells us there’s something that has greater density,” Redfern said.
The challenge is to find out which heavy materials the core is made of. And the main material scientists have found is iron. The idea is that when Earth formed 4.5 billion years ago, a lot of iron made its way down to the core, taking up about 80 percent of it. Today scientists are still working on finding out which other materials the core could be made up of.
You might also wonder how we know the size of the core. There’s a one-word answer: seismology (地震学).
When an earthquake happens, seismic stations around the world record the shockwaves it sends throughout the planet. It’s like hitting one side of the planet with a huge hammer and listening on the other side for the noise.
Early research found that some shockwaves, called “S-waves”, went missing. S-waves can only travel through solid material, but not through liquid, so they must have found something molten in Earth’s center. By following the S-waves’ paths, scientists found out that rocks became liquid around 3,000 km down.
There are still many questions about the Earth’s core to answer. But the study of the dark world below isn’t just for scientists’ curiosity.
The movement of Earth’s molten iron core builds up a powerful magnetic (有磁力的) field. It protects us from radiation from the sun and is needed for compasses and GPS systems to work.
So perhaps none of us will ever set eyes on the core, but it’s good to know it’s there.
1.The author mentions Jules Verne’s novel Journey to the Center of the Earth in the first paragraph to .
A. discuss the possibility of going down to Earth’s center
B. show how much humans have discovered about Earth
C. paint a picture in our imagination of the dark world below
D. show humans’ deep interest in Earth’s center
2.We can learn from the article that “S-waves” .
A. are often used to predict earthquakes
B. cannot travel through liquid material
C. are the most noticeable shockwaves produced by earthquakes
D. can travel most rapidly at 3,000 kilometers below Earth’s surface
3.We can infer from the last three paragraphs that .
A. research into Earth’s core has hardly made any progress in recent years
B. improvements in GPS systems could help people find out more about Earth
C. Earth’s core helps to protect humans from harm
D. scientists are likely to reach Earth’s center within dozens of years
高三英语阅读理解中等难度题
Many of us have wondered what Earth is like beneath the surface. So have writers and scientists. In French novelist Jules Verne’s masterpiece Journey to the Center of the Earth, explorers go down to Earth’s center and discover amazing wonders.
But in real life, human beings haven’t even come close to the planet’s core (核心). The core is over 6,000 km down. The deepest hole ever created, according to the BBC, is the Kola Superdeep Borehole in Russia, which only goes 12.3 km down.
So how do we know about everything down below without any samples？
One good way to start is to think about the Earth’s density (密度), Simon Redfern of the University of Cambridge in the UK told the BBC.
“The density of the material on Earth’s surface is much lower than the average density of the whole Earth, so that tells us there’s something that has greater density,” Redfern said.
The challenge is to find out which heavy materials the core is made of. And the main material scientists have found is iron. The idea is that when Earth formed 4.5 billion years ago, a lot of iron made its way down to the core, taking up about 80 percent of it. Today scientists are still working on finding out which other materials the core could be made up of.
You might also wonder how we know the size of the core. There’s a one-word answer: seismology (地震学).
When an earthquake happens, seismic stations around the world record the shockwaves it sends throughout the planet. It’s like hitting one side of the planet with a huge hammer and listening on the other side for the noise.
Early research found that some shockwaves, called “S-waves”, went missing. S-waves can only travel through solid material, but not through liquid, so they must have found something molten in Earth’s center. By following the S-waves’ paths, scientists found out that rocks became liquid around 3,000 km down.
There are still many questions about the Earth’s core to answer. But the study of the dark world below isn’t just for scientists’ curiosity.
The movement of Earth’s molten iron core builds up a powerful magnetic (有磁力的) field. It protects us from radiation from the sun and is needed for compasses and GPS systems to work.
So perhaps none of us will ever set eyes on the core, but it’s good to know it’s there.
1.The author mentions Jules Verne’s novel Journey to the Center of the Earth in the first paragraph to .
A. discuss the possibility of going down to Earth’s center
B. show how much humans have discovered about Earth
C. paint a picture in our imagination of the dark world below
D. show humans’ deep interest in Earth’s center
2.We can learn from the article that “S-waves” .
A. are often used to predict earthquakes
B. cannot travel through liquid material
C. are the most noticeable shockwaves produced by earthquakes
D. can travel most rapidly at 3,000 kilometers below Earth’s surface
3.We can infer from the last three paragraphs that .
A. research into Earth’s core has hardly made any progress in recent years
B. improvements in GPS systems could help people find out more about Earth
C. Earth’s core helps to protect humans from harm
D. scientists are likely to reach Earth’s center within dozens of years
高三英语阅读理解中等难度题查看答案及解析
It is the only place ______ the earth to have been visited by humans.
A.beneath B.below C.beyond D.behind
高三英语单项填空简单题查看答案及解析
Since many young people have become rich on Taobao.com, I wonder what ________ ________ is like to run a successful on-line business.
A．that B．this C．it D．one
高三英语单项填空中等难度题查看答案及解析
I wonder what it feels like to be one of ____ really rich. The Browns already have Rolls Royce and now they are buying ____ third.
A. the; the B.不填; a C. the; a D.不填; the
高三英语单项填空简单题查看答案及解析
I wonder what it feels like to be one of ______ really rich. The Browns already have Rolls Royce and now they are buying ______ third.
A. the; the B. /; a C. the; a D. /; the
高三英语单项填空困难题查看答案及解析
One of the most wonderful things about having a positive attitude is that it can touch many people, and it often exists in our everyday life.
Recently, I stopped by a store to get a newspaper and a bottle of drink. The young woman at the check-out counter said, “That’ll be three dollars in all please.” She then glanced down at the paper I was buying and said. “I’m sick and tired of all this negative stuff-on the front pages. I want to read some good news for a change.” She then said, “In fact, I think soemone should just publish a Good News newspaper--- a paper with wonderful, inspirational stories about people over-coming difficulty and doing good things for others. I’d buy one every day!” she then thanked me for coming in and said, “Maybe we’ll get lucky tomorrow; maybe we’ll get some good news.” And she laughed. She made my day.
The following day after my business appointments. I dropped by the same store again to pick up bottled water and a piece of newspaper, but a different young lady was behind the counter. As I checked out I said “Good afternoon” and handed her my money. She said nothing, not a word, not a smile or not a gesture. She just handed me my change and in a negative tone ordered “Next!”
It hit me right between the eyes: Two people, the same age; one made me feel great, and the other, well, made me feel that I had inconvenienced her by showing up.
Every morning you should ask yourself this important question. “Who do I want to be today? The Grouch(不高兴的人) or ‘The Good News Girl?’” Your answer will go a long way toward determining the joy and happiness that you will experience in your life.
53. What does the first salesgirl dislike according to her words?
A. Those who have bad manners.
B. The bad news in the newspaper.
C. The advertisements in the newspaper.
D. The bad news who break the laws.
54. After he had bought a newspaper on the first day the author _________.
A. was very lucky and excited that day
B. always remembered the girl’s word
C. read the news in the newspaper carefully
D. was in a pleasant mood the whole day
55. We learn from the passage that the salesgirl the author met the next day was ________.
A. humorous B. enthusiastic C. very cool D. positive
56. What does the underlined sentence in Paragraph 4 mean?
A. I was very surprised. B. I was especially angry.
C. I felt very unhappy. D. It hurt my heart badly.
高三英语阅读理解简单题查看答案及解析
One of the most wonderful things about having a positive attitude is that it can touch many people in the course of everyday life.
Recently I stopped by a store to get a newspaper and a bottle of juice. The young woman at the check-out counter said, “That’ll be three dollars in all please.” And as I reached into my wallet，the thought occurred to me that a newspaper and a bottle of juice didn’t quite make it to three dollars.
When I looked up to get a “re-quote”(重说一遍), she had a big smile on her face and said，“I got to get my tip in there somehow!” I laughed when I knew what she meant. She then glanced down at the paper I was buying and said, “I’m sick and tired of all the negative material on the front pages. I want to read some good news for a change.” She then said, “In fact, I think someone should publish a Good News newspaper —a paper with wonderful, inspirational stories about people overcoming difficulties and doing good things for others. I’d buy one every day!” She then thanked me for coming in and said, “Maybe we’ll get lucky tomorrow; maybe we’ll get some good news!” We both laughed，and I thought: she just made my day.
The following day after work I dropped by the same store again to pick up bottled water and a newspaper, but a different young lady was behind the counter. As I checked out I said, “Good afternoon”, and handed her my money. She said nothing，and didn’t smile or make a gesture. She just handed me my change and said in a bored voice, “Next!”
It hit me right between the eyes. Two people, the same age; one had made me feel great, while the other had made me feel that I had inconvenienced her by showing up.
The choices we make and attitudes we show influence lives every day in positive or negative ways…our peers, our friends，and even strangers we’ve never met before and will never meet again. So every morning you should ask yourself：“Who do I want to be today—‘The Grouch’(好抱怨的人) or ‘The Good News Girl?” Your answer will go a long way toward determining the quality of your life and that of those around you.
1. From the first salesgirl’s words we know that __________.
A. she was sick and tired of people with bad manners
B. she didn’t like the bad news in the newspaper
C. she liked reading all kinds of stories
D. she thought it was boring to sell newspapers
2. After the author bought the newspaper the first day，he _________.
A. had a sad day
B. kept thinking about what the girl had said
C. read the newspaper carefully
D. was in a pleasant mood all day
3.The other salesgirl’s attitude towards the author the next day was __________.
A. humorous B. enthusiastic C. cold D. positive
4.The author learned from his experience that __________.
A. a Good News newspaper would be very popular
B. a positive attitude creates warmth and happiness
C. good relationships matter a lot
D. he needed to change the quality of his life
高三英语阅读理解简单题查看答案及解析
One of the most wonderful things about having a positive attitude is that it can touch many people in the course of everyday life．
Recently I stopped by a store to get a newspaper and a bottle of juice．The young woman at the check-out counter said, “That’ll be three dollars in all please．” And as I reached into my wallet，the thought occurred to me that a newspaper and a bottle of juice didn’t quite make it to three dollars．
When I looked up to get a “re-quote”（重说一遍）, she had a big smile on her face and said，“I got to get my tip in there somehow!” I laughed when I knew what she meant．She then glanced down at the paper I was buying and said, “I’m sick and tired of all the negative material on the front pages．I want to read some good news for a change．” She then said, “In fact, I think someone should publish a Good News newspaper —a paper with wonderful, inspirational stories about people overcoming difficulties and doing good things for others．I’d buy one every day!” She then thanked me for coming in and said, “Maybe we’ll get lucky tomorrow; maybe we’ll get some good news!” We both laughed，and I thought: she just made my day．
The following day after work I dropped by the same store again to pick up bottled water and a newspaper, but a different young lady was behind the counter．As I checked out I said, “Good afternoon”, and handed her my money．She said nothing，and didn’t smile or make a gesture．She just handed me my change and said in a bored voice, “Next!”
It hit me right between the eyes．Two people, the same age; one had made me feel great, while the other had made me feel that I had inconvenienced her by showing up．
The choices we make and attitudes we show influence lives every day in positive or negative ways…our peers, our friends，and even strangers we’ve never met before and will never meet again．So every morning you should ask yourself：“Who do I want to be today—‘The Grouch’（好抱怨的人） or ‘The Good News Girl?” Your answer will go a long way toward determining the quality of your life and that of those around you．
1.From the first salesgirl’s words we know that __________．
A．she was sick and tired of people with bad manners
B．she didn’t like the bad news in the newspaper
C．she liked reading all kinds of stories
D．she thought it was boring to sell newspapers
2.After the author bought the newspaper the first day，he _________．
A．had a sad day B．kept thinking about what the girl had said
C．read the newspaper carefully D．was in a pleasant mood all day
3.The other salesgirl’s attitude towards the author the next day was __________．
A．humorous B．enthusiastic C．cold D．positive
4.The author learned from his experience that __________．
A．a Good News newspaper would be very popular
B．a positive attitude creates warmth and happiness
C．good relationships matter a lot
D．he needed to change the quality of his life
高三英语阅读理解中等难度题查看答案及解析
One of the most wonderful things about having a positive attitude is that it can touch many people in the course of everyday life.
Recently I stopped by a store to get a newspaper and a bottle of juice. The young woman at the check-out counter said, “That’ll be three dollars in all please.”She then glanced down at the paper I was buying and said, “I’m sick and tired of all the negative material on the front pages. I want to read some good news for a change.”She then said, “In fact, I think someone should publish a Good News newspaper——a paper with wonderful, inspirational stories about people overcoming difficulties and doing good things for others. I’d buy one every day!”She then thanked me for coming in and said, “Maybe we’ll get lucky tomorrow; maybe we’ll get some good news!”We both laughed, and I thought: she just made my day.
The following day after work I dropped by the same store again to pick up bottled water and a newspaper; but a different young lady was behind the counter. As I checked out I said, “Good afternoon”, and handed her my money . she said nothing, and didn’t smile or make a gesture. She just handed me my change and said in a bored voice, “Next!”
It hit me right between the eyes. Two people, the same age; one had made me feel great , while the other had made me feel that I had inconvenienced her by showing up.
The choices we make and attitudes we show influence lives every day in positive or negative ways. So every morning you should ask yourself:“Who do I want to be today—‘The Grouch(不高兴的人)’or ‘The Good News Girl’?”Your answer will go a long way toward determining the quality of your life and that of those around you.
1.From the first salesgirl’s words we know that________.
A. she was sick and tired of people with bad manners
B. she didn’t like the bad news in the newspaper
C. she liked reading all kinds of stories
D. she thought it was boring to sell newspapers
2.After the author bought the newspaper the first day, he________ .
A. had a sad day B. kept thinking about what the girl had said
C. read the newspaper carefully
D. was in a pleasant mood all day
3.The other salesgirl’s attitude towards the author the next day was________.
A. humorous B. enthusiastic C. cold D. positive
4.The author learned from his experience that ________ .
A. a Good News newspaper would be very popular
B. a positive attitude creates warmth and happiness
C. good relationships matter a lot
D. he needed to change the quality of his life
高三英语阅读理解中等难度题查看答案及解析
Many of us have heard of the saying: everything is possible if you can just believe. But few of us really know the power of faith and perseverance(坚定). South African swimmer Natalie du Tiot embodies(体现)those virtues.
Du Tiot, 24, became the first swimmer to compete in both the Olympic Games and the Paralympics (残奥会)in Beijing. Although she finished 16th in the tough 10km marathon in the able-bodied Games, she has collected three golds in the Paralympics so far.
One of the most successful disabled athletes of all time, Natalie du Tiot was already a promising swimmer when she lost her leg in a motorcycle accident in 2001, at just 17.
“There are a lot of dark moments,” she said, “There are some days when I cry. But I try to remember that better days are ahead. You just go on.”
Within a few months, she was back in the swimming pool.
She still completes and still succeeds. The only difference is she has switched to longer events—from 200m and 400m individual medley to 800m and 1,500m freestyle—to make up for her loss of speed with only one leg. But she made no adjustment to her mental look(精神面貌).
“Going out in the water, it feels as if there’s nothing wrong with me. It doesn’t matter if you look different. You’re still the same as everybody else because you have the same dream.”
She is the owner of many world records, and she also won gold when competing against able-bodied swimmers in the 1,500m freestyle at the All African Games in 2007.
But there is no magic recipe(秘诀) for success. It all comes down to hard work and determination. “She is stubborn, which is good and bad,” said her coach Karoly Von Toros. “Good for the swimming, but bad for the coach.”
There is a poem that hangs on her wall that reads:
The tragedy (悲剧)of life does not lie in not reaching your goals;
The tragedy of life lies in not having goals to reach for.
1. Natalie du Tiot is a vivid example that____________________.
| A．you are what you believe |
| B．your biggest enemy is yourself |
| C．results are not so important as the process |
| D．you must set reasonable goals or you will fail |
2.According to the text , Natalie du Tiot became________________.
| A．the first athlete to compete with able-bodied swimmers in the world |
| B．the youngest disabled swimmer to break the world record in the 1,500m freestyle |
| C．the youngese disabled swimmer to collect three golds in a single Paralympics |
| D．the first swimmer to compete in both the Olympic Games and the Paralympics |
3.Which of the following is the correct order of the events that happened to Natalie du Tiot？
a. She won gold at the All Africa Games.
b. She finished 16th in the tough 10km marathon in the Olympics
c. She adjusted herself to long events.
d. A motorcycle accident disabled her.
| A．cdab | B．dcba | C．dcab | D．dacb |
4.In dark moments it was_______________ that pushed her on.
| A．her coach | B．her family | C．hope and faith | D．her love of swimming |
高三英语阅读理解中等难度题查看答案及解析