Most of the time, the ground feels solid beneath our feet. That's comforting. But it's also misleading because there's actually a lot going on underground. Masses of land (called plates) slip, slide, and bump against each other, slowly changing the shape of continents and oceans over millions and billions of years.
Scientists know that Earth formed about 4. 5 billion years ago. They also know that our planet was hot at first. As it cooled, its outermost layer, called the crust (地壳), eventually formed moving plates. Exactly when this shift happened, however, is an open question.
Now, an international group of researchers has an answer. They've found new evidence suggesting that Earth's crust started shifting at least 3.8 billion years ago. The new estimate is l. 3 billion years earlier than previous ones.
Not long before 3. 8 billion years ago, lots of small planets were hitting Earth, keeping its crust in a hot, melting state. After the hard crust formed, much of it sank at various times into the planet's hot insides. There, it melted before returning to the surface.
In some places, however, the crust never sank. One of the oldest such places is in Greenland, in an area called the Isua supracrustal (上地壳) belt. The rocky crust there is between 3. 7 and 3. 8 billion years old. The belt was once part of the seafloor, but now it is exposed to air.
The researchers recently took a close look at the Isua supracrustal belt. They noticed long, parallel cracks(裂缝)in the rock that have been filled in with a type of volcanic rock.
To explain this structure, the scientists propose that tension in the crust caused the seafloor to crack open long ago. Hot, liquid rock oozed from deep inside Earth to fill the cracks. Finally, the whole area cooled, forming what we see today.
That explanation, plus chemical clues inside the rock, suggests that the Isua supracrustal belt was once part of plate under the ocean, beginning around 3.8 billion years ago.
“It's a fantastic case of solving a jigsaw puzzle(拼图),”says one of the researchers. He notes that the puzzle was “a very difficult one because these rocks are all very old and have been badly ruined".
1.The underlined phrase “oozed from" in Paragraph 7 is closest in meaning to________.
A. filled up gradually
B. washed away quickly
C. flew out of slowly
D. broke through suddenly
2.What can we infer from the text?
A. The shapes of continents and oceans changed slowly.
B. The Earth's crust started shifting l.3 billion years ago.
C. The crust began to shift when the Earth was hot.
D. The hit from small planets made the Earth cool.
3.What do scientists know about the past of the Isua supracrustal belt?
A. It was once covered by hot, liquid rock.
B. It remained under the deep sea.
C. It stayed hot and sinking.
D. It kept moving slowly.
4.The text is mainly about________.
A. why the Earth cooled
B. how the Isua supracrustal belt formed
C. whether the ground beneath our feet is still
D. when Earth's crust began shifting
高三英语阅读理解困难题
Most of the time, the ground feels solid beneath our feet. That's comforting. But it's also misleading because there's actually a lot going on underground. Masses of land (called plates) slip, slide, and bump against each other, slowly changing the shape of continents and oceans over millions and billions of years.
Scientists know that Earth formed about 4. 5 billion years ago. They also know that our planet was hot at first. As it cooled, its outermost layer, called the crust (地壳), eventually formed moving plates. Exactly when this shift happened, however, is an open question.
Now, an international group of researchers has an answer. They've found new evidence suggesting that Earth's crust started shifting at least 3.8 billion years ago. The new estimate is l. 3 billion years earlier than previous ones.
Not long before 3. 8 billion years ago, lots of small planets were hitting Earth, keeping its crust in a hot, melting state. After the hard crust formed, much of it sank at various times into the planet's hot insides. There, it melted before returning to the surface.
In some places, however, the crust never sank. One of the oldest such places is in Greenland, in an area called the Isua supracrustal (上地壳) belt. The rocky crust there is between 3. 7 and 3. 8 billion years old. The belt was once part of the seafloor, but now it is exposed to air.
The researchers recently took a close look at the Isua supracrustal belt. They noticed long, parallel cracks(裂缝)in the rock that have been filled in with a type of volcanic rock.
To explain this structure, the scientists propose that tension in the crust caused the seafloor to crack open long ago. Hot, liquid rock oozed from deep inside Earth to fill the cracks. Finally, the whole area cooled, forming what we see today.
That explanation, plus chemical clues inside the rock, suggests that the Isua supracrustal belt was once part of plate under the ocean, beginning around 3.8 billion years ago.
“It's a fantastic case of solving a jigsaw puzzle(拼图),”says one of the researchers. He notes that the puzzle was “a very difficult one because these rocks are all very old and have been badly ruined".
1.The underlined phrase “oozed from" in Paragraph 7 is closest in meaning to________.
A. filled up gradually
B. washed away quickly
C. flew out of slowly
D. broke through suddenly
2.What can we infer from the text?
A. The shapes of continents and oceans changed slowly.
B. The Earth's crust started shifting l.3 billion years ago.
C. The crust began to shift when the Earth was hot.
D. The hit from small planets made the Earth cool.
3.What do scientists know about the past of the Isua supracrustal belt?
A. It was once covered by hot, liquid rock.
B. It remained under the deep sea.
C. It stayed hot and sinking.
D. It kept moving slowly.
4.The text is mainly about________.
A. why the Earth cooled
B. how the Isua supracrustal belt formed
C. whether the ground beneath our feet is still
D. when Earth's crust began shifting
高三英语阅读理解困难题查看答案及解析
Beneath our feet _____ that our life depends on for food and clothing.
A.the earth lay | B.the earth lies |
C.lies the earth | D.does the earth lie |
高三英语单项填空中等难度题查看答案及解析
Beneath our feet_____ that our lives depend on for food and clothing.
A. lies the earth B. lay the earth C. the earth lies D. does the earth lie
高三英语单项填空困难题查看答案及解析
For most of us, the rain that falls on our roof runs off into the ground or the sewer(下水道) system. But if you want to save a little water and reuse it on your lawns or plants --- or even use it for laundry, dishes, or other needs --- collecting rainwater from your gutter’s downspouts(檐槽的水落管) is a no-brainer.
According to John C. Davis, writing in E / The Environmental Magazine, just about any homeowner can collect rainwater, given that the roof and gutters do most of the work. And since an inch of rain falling on a 2,000-square-foot roof produces some 1,200 gallons of water, you can harvest enough to water your lawn or garden.
Plants and grass actually do better when fed rainwater instead of tap water, which is usually treated with substances that can hold back plant growth. Using rainwater can also extend the life of pipes, since the salts added to tap water may gradually damage the pipes. However, homeowners should set up a water purification system if they do plan to use rainwater for inside needs.
Rainwater harvesting can also be good for the local community, as it reduces the erosion, flooding, and pollution associated with heavy rainfall, and reduces dependence on public water supplies. So some states fund rainwater collection systems in their local communities.
Many varieties of rain barrel(桶) systems, starting at just $100, are available for home use. A typical setup is simply a rain barrel positioned under a gutter’s downspout. Skillful homeowners can make their own water harvesting systems, but buying one is a lot easier. Most garden centres offer a range of choices as well as tips.
1.The underlined word “no-brainer” in Para. 1 probably means something that ______.
A.is hard to deal with B.is very easy
C.is of no real value D.deserves more attention
2.From Paragraphs 3 and 4, we can learn _______.
A.how to set up a water harvesting system B.how a rain barrel system works
C.some advice on saving tap water D.the benefits of using rainwater
3.What is the topic of the passage ?
A.Basic gardening skills. B.Water-saving techniques.
C.Wastewater treatment systems. D.Roof rainwater collection.
高三英语阅读理解中等难度题查看答案及解析
One of the areas of our body which conveys most about how we feel is how we move our hands and arms. 1., but most often they occur unconsciously and naturally.
2.. Open hands and arms, especially extended, and with hands up in front of the body at chest height, indicate that what you’re saying is important, and, especially when people are speaking in public, a pointing finger or a hand waving above the shoulders stresses a personal point. However, research shows that people often find speakers who point their fingers a lot rather annoying.
Openness or honesty. 3., they will often hold one or both of their hands out to the other person. Footballers who have just committed a foul (犯规)often use this gesture to try to convince the referee that they didn’t do it.
Nervousness. If a person puts his hand to his mouth, this either indicates that he is hiding something, or that he is nervous. 4., and so does holding a bag or briefcase very tightly in front of the body.
Feeling defensive. Arms folded tightly over the chest is a classic gesture of defensiveness and indicates that you are protecting yourself. It is often seen among strangers in queues or in lifts or anywhere where people feel a bit insecure. People also sometimes use this gesture when they are listening to someone, to show that they disagree with what is being said. 5.!
A. Saying something important
B. When people want to be open or honest
C. Hand and arm gestures are sometimes intentional
D. But this gesture can simply mean that the person is cold
E. Playing with your fingers, like tapping the table, also shows anxiety
F. This gesture is typical of lawyers, accountants, and other professionals
G. When someone puts up his both hands, he probably gives in to his enemies
高三英语七选五中等难度题查看答案及解析
We live in a fast-paced and anxiety-filled world that oftentimes seems to shift beneath our feet. Thus we are sometimes affected by fears or anxiety impacting our life. For as long as I could remember I had struggled with anxiety. After I left university, I made friends with a Moroccan woman at work. One day she invited me to________her and her family back home. I wanted to, but I would have to travel there ________ and I knew we would be in a very rural area. How would I cope with my ________?
Then one day it ________ to me that I had a life to live. I could choose to let anxiety ________ me or I could go to Morocco and ________ something different. I was 23 years old and had never been out of the UK alone. The journey to Morocco ________ something inside me. I managed to cope with my anxiety. The sense of ________ was overwhelming and still to this day when I get afraid of going somewhere alone, I remember how ________ it felt when I arrived in Morocco.
Upon arrival I was so ________ for the generous welcome I received. My friend’s family had arranged a welcome party. The people were so loving toward me. As a moment of ________ felt in a faraway village, this reminded me that I was “good enough”, which helped to ________ my anxiety.
Waking up the next day, in the morning light, I saw the area where we were. I was ________ by how rural it was – and the realization that these people had very few ________ .
In the days afterwards, I traveled around Morocco. We went to Marrakesh and ________ the Atlas mountains. We had the most amazing food – lots of fresh fruits and vegetables.
At the end of my ________ something inside me had changed. I realized I had not felt anxious for nearly two weeks.
Experiencing a different culture far away from home helped me to realize what is important in life, what really ________, and with that my anxiety ________. When I returned home I was much more active in ________ my anxiety. Working with people, helping them ________ their anxiety, is how I can share the love I found in Morocco.
1.A. send B. consult C. call D. visit
2.A. alone B. soon C. free D. safe
3.A. work B. curiosity C. homesickness D. worries
4.A. appeared B. hit C. struck D. occurred
5.A. impress B. control C. reach D. persuade
6.A. enjoy B. experience C. take D. experiment
7.A. changed B. moved C. supported D. impressed
8.A. achievement B. fear C. disappointment D. embarrassment
9.A. good B. ashamed C. afraid D. proud
10.A. sorry B. confused C. confident D. thankful
11.A. doubt B. luck C. love D. surprise
12.A. improve B. hold C. protect D. reduce
13.A. inspired B. moved C. pleased D. shocked
14.A. lands B. difficulties C. resources D. friends
15.A. discovered B. explored C. examined D. recognized
16.A. opportunity B. rush C. stay D. life
17.A. rules B. exists C. matters D. hurts
18.A. disappeared B. expanded C. remained D. removed
19.A. expressing B. challenging C. forgetting D. remembering
20.A. drop B. notice C. pass D. overcome
高三英语完型填空中等难度题查看答案及解析
Even in the best and most loving of times, families can feel impossibly confined (受限制的). Teens are irritable and furious. Parents are annoying and embarrassing. For Esther and her daughter Chaya, the tiny new coronavirus changed all that.
Esther was born in Wuhan-a dynamic and culturally rich place that she deeply loves but moved to the U.S. During the winter holiday, they went to Wuhan to visit Esther’s parents. Gradually at first, then more frequently, they noticed face masks on city streets. To be safe, they wore their own masks and stopped going to public gatherings. Then, suddenly the city was on lockdown. No one could leave. Their reservations home on a China Southern airlines flight were worthless. “I feared for my daughter’s life,” said Esther, “If it got worse, there could be chaos. She doesn’t speak much Chinese.”
For days, Esther repeatedly called and emailed for help. It was nonstop. She stayed online, checking all the time. Chaya felt distressed and helpless. It's awful seeing her mother go through that-without having anything she could do to help in the hotel.
Their luck changed with one email. For the 1,000 Americans stuck in Wuhan, there were 230 available seats on one outbound flight, it said. Esther bought two $1,100 seats. After a 12-hour wait at the airport, they got clearance to leave, and arrived at March Air Force Base, where they were isolated in two small connected rooms with a shared bath for two weeks. There were daily medical checkups, twice daily temperature checks and a 10 a m. briefing (简报). But there was no WiFi, TV or friends. For emotional support, Esther phoned her husband Haim, an engineering manager for Uber, and their two other children, ages 13 and 11.
Now home, they are basking in (沉浸于) the thrill of phone calls, TV interviews and a caring community. They’ve gotten little sleep. Suitcases remain unpacked. But anyhow, they have survived not just the outbreak of a virus but the unforgettable experience of mother-daughter togetherness.
1.What can be inferred from the second paragraph?
A.The culture and vitality of Wuhan have attracted Esther and Chaya there.
B.The virus has affected people's life in Wuhan.
C.The flight of going back to the U.S. has been postponed.
D.The city was locked down because it was in chaos.
2.What caused Chaya's depressed mood?
A.Seeing her mother suffer from reaching out for help. B.Being kept in Wuhan for poor health.
C.Missing her family and friends at home. D.Being unable to speak Chinese.
3.Why were they isolated after Esther and Chaya arrived at the airport?
A.The concern of their safety as well as the public’s.
B.Their infection of the virus.
C.The lack of flight home.
D.Their emotional problems after the experience.
4.What is the best title of the text?
A.Life in Wuhan: fighting the virus together.
B.Life about people infected by the virus.
C.Life about a mom and teen united by a virus.
D.Life about a mom and daughter from the U.S.
高三英语阅读理解中等难度题查看答案及解析
The building _____ in our school is for us teachers. Though there’s noise most of day, we still feel happy about it .
A.built | B.has been built | C.being built | D.to be built |
高三英语单项填空中等难度题查看答案及解析
Most of the time, we choose colors for decorating based on our personal taste and our sense of aesthetics (审美学). But, a number of color experts believe that colors have an effect on our emotions and that it would be wise of us to be conscious of that before settling on a definite choice.
Some of the effects of colors are well known and accepted by most people. In fact, those effects have been the subject of serious research and experiments and have been scientifically proven. But not all scientists agree on the validity (正确性) of the results.
When we become interested in the psychological effects of colors, it is important to know that not all societies share our opinion of those effects on our emotions. What we hold as an "objective" observation on a color is often nothing more than a reflection of our cultural belongingness, which has attributed properties to that color for generations.
Why is it not possible for us to hold a really objective discourse(论述)on the subject? In part, because it is very difficult to separate the psychological from the symbolic, the symbolic aspects are definitely cultural. Often, and this without our realizing it, they influence our understanding of colors and the following emotions - both psychological aspects. Black and white are good examples. In western countries, black is considered serious, dramatic and sometimes sad. People are warned against its potentially depressing effects on decoration. Black is the traditional color of mourning. White, on the other hand, is associated with purity, peace and optimism. For those reasons, white is the traditional color of bridal dresses. No one would think of attending a funeral in white. Any more than it would occur to a bride to wear black. We simply remain convinced that it is not in the "nature" of those colors. Yet, in certain oriental countries, it is white, not black that is the color of mourning.
That having been said, there is some “overlapping” in the properties different cultures attribute to certain colors. For example, Feng Shui, the traditional Chinese philosophy that distinguishes between good and evil influences explains colors much in the same way as the majority of western color specialists. Is that to say that colors have real natural properties which all humans perceive(感知) in the same way or is the phenomenon an example of the cross-influences that affect the thinking of cultures brought closer to one another by a certain Venetian(威尼斯人) called Marco Polo? It is difficult to say.
But, be that as it may, colors do affect us. And if you feel emotions for a certain color, note them and remember them. You may even wish to consider them next time you are planning to decorate. The decision is yours!
1. Most of the time, we ignore ______ when choosing colors for decoration.
A.personal taste B.our aesthetics
C.cultural effects D.psychological effects
2.Why is it not possible for us to hold a really objective discourse on the subject?
A.Because it is often nothing more than a reflection of our cultural belongingness.
B.Because the colors have the properties for generations.
C.Because it is difficult to separate the psychological from the cultural.
D.Because the symbolic aspects influence our perception of colors.
3. The italicized word “overlapping” is paragraph 6 is closest in meaning to______
A.difference B.conflict C.sameness D.agreement
4. In western countries, white is ______.
A.preferred by bridals B.used in a funerals sometimes
C.depressing in decoration D.pure in its nature
5. According to the author, which of the following statements is certain?
A.Different cultures can have the same properties of colors.
B.If you feel emotions for a color, note them and remember them.
C.All humans perceive colors’ natural properties in the same way.
D.Marco Polo disclosed the psychological effects of colors.
高三英语阅读理解中等难度题查看答案及解析
Thomas Hardy, probably the most searching and knowledgeable novelist of our time, was born on June 2, 1840, in Dorsetshire, England. He died on January 11, 1928. In his youth, Hardy read much and dreamt of becoming a poet, but he studied and practiced architecture as an assistant to a London architect, winning a prize for design. The fine descriptions of structure in his novels were probably somewhat due to his architectural training.
For five years he worked hard to practise writing poetry, but when he was twenty-seven, Hardy turned to fiction. His first story was accepted two years later, but upon the advice of George Meredith he decided not to publish it. His first novel, Desperate Remedies, appeared in 1871. During the next twenty-five years he published fourteen novels and two collections of short stories.
Under the Greenwood Tree (1872) he never surpassed(超越)in happy and delicate perfection of art. This and his next novel, A pair of Blue Eyes (1873), begin to show deep irony(讽刺) which is so obvious throughout Hardy’s writings.
Far from the madding Crowd (1874) was his first popular success. In it is shown Hardy’s amazing power of describing nature as symbolic background for his characters, an organic part of the action of his story. This was the earliest of what he called his novels of character and environment, which included The Return of the Native, Tess of D’Urbervilles, his masterpiece, and Jude the Obscure. Not until he was fifty-eight years old was his first collection of poems published, and he was sixty-four when the first part of The Dymats, surprised the literary world.
1.How did Thomas Hardy benefit from his architectural career?
A. He could practice writing while working. B. He made a lot of money to support his writing.
C. He found material for his novels and poems. D. He applied architectural knowledge in his novels.
2.What is Thomas Hardy’s Under the Greenwood Tree considered to be?
A. One of his masterworks. B. One of his best collections of poems.
C. His best novel in perfection of art. D. His first popular success.
3.Which of the following is one of his novels of character and environment?
A. Desperate Remedies. B. A pair of Blue Eyes. C. Tess of D’Urbervilles D. The Dymats.
4.What type of writing is this text?
A. A biography. B. A book review. C. A novel. D. A news report.
高三英语阅读理解简单题查看答案及解析