If you want to cook something quickly, you heat it from both sides. That’s what’s happening to the West Antarctic ice sheet(南極洲西部冰蓋). A new study reveals that the area under the ice sheet is far hotter than previously thought, fed by an unexpected flow of geothermal energy(地?zé)崮?. While the CO2 we send out heats the atmosphere above the continent, earth is melting us ice from below.
If you were to drill (鉆) deep at some place on the continents, you would find that the temperature increases about 25℃ for every kilometer deep into the hole on average. Scientists call this the geothermal gradient(地?zé)崽荻?. Until recently, no one had drilled deeply enough through the West Antarctic ice to determine the geothermal gradient underground. For the new study, researchers drilled all the way through the ice and into the mud. They found that the geothermal gradient was about 200℃, which is several times the global average on continents. Few predicted this result, although it had been showed that the earth below the West Antarctic ice is unusually hot.
Even with the new discovery, though, we still don’t know exactly where the heat is coming from. One interesting possibility is volcanoes, which are under the ice. As recently as 2013, scientists were still discovering volcanoes under the ice in the area, and there may be many more.
Some people say that these volcanoes, rather than manmade climate change, are responsible for melting the area’s ice. While it’s true that heat coming from within the earth, including heat related to volcanoes, makes the melting faster, it is just one contributor to the loss of the West Antarctic ice sheet---not the main cause. Today’s study could help us understand how the whole system, including global warming, is melting the ice.
1.What’s happening to the West Antarctic ice sheet?
A. The ice sheet is getting hotter and hotter.
B. It is heated from below rather than from above.
C. The ice sheet is producing a new kind of energy.
D. It is melting from both sides.
2.What can be learned from the second Paragraph?
A. It was the first time that researchers had tried to measure geothermal gradients.
B. The geothermal gradient showed where the heat came from.
C. The result was beyond the researchers’ expectations.
D. Researchers never knew the earth under the West Antarctic ice was hot.
3.The author would probably agree that ___.
A. the new discovery is unhelpful without a certain conclusion
B. no volcano has been found to support the researchers’ idea
C. volcanoes are the most important reason for the melting of the ice
D. global warming is surely one reason for the melting of the ice
4.What’s the main idea of the passage?
A. The West Antarctic ice sheet is in danger.
B. Researchers are trying to stop global warming.
C. The West Antarctic ice sheet’s melting will bring terrible consequences.
D. It has been known how to stop the melting of the West Antarctic ice sheet.
年級 | 高中課程 | 年級 | 初中課程 |
高一 | 高一免費(fèi)課程推薦! | 初一 | 初一免費(fèi)課程推薦! |
高二 | 高二免費(fèi)課程推薦! | 初二 | 初二免費(fèi)課程推薦! |
高三 | 高三免費(fèi)課程推薦! | 初三 | 初三免費(fèi)課程推薦! |
科目:高中英語 來源:2016屆江西南昌二中高三上學(xué)期第四次考試英語試卷(解析版) 題型:短文改錯(cuò)
短文改錯(cuò)
假定英語課上老師要求同桌之間交換修改作文,請你修改你同桌寫的以下作文。文中共有10處語言錯(cuò)誤,每句中最多有兩赴,每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改。
增加:在缺詞處加一個(gè)漏字符號(hào)( ),并在其下面寫出該加的詞。
刪除:把多余的詞用斜線(\)劃掉。
修改:在錯(cuò)的詞下劃一橫線,并在該詞下面寫出修改后的詞。
注意:1.每處錯(cuò)誤及其修改均限一詞。
2.只允許修改10處,多者(從第11處起)不計(jì)分。
Mistakes are something did, said or believed, as a result of wrong thinking or understanding, lack of knowledges or skills. No one is perfect, but no one makes no mistake. Because many people are afraid of making mistakes, we don’t believe, say or do much. They behaved like this just because they want to make no mistake. As I said, it’s impossible. Being afraid of making mistakes is mistake itself. Only through mistakes can there be discover or progress. Making mistakes for seeking truth is much more better than doing nothing. Mistakes are the best teachers which guide us through difficulties. Don’t let mistakes scare you. Let’s learn on mistakes.
查看答案和解析>>
科目:高中英語 來源:2015-2016學(xué)年安徽省宣城市三校高二上學(xué)期期中英語試卷(解析版) 題型:短文改錯(cuò)
短文改錯(cuò)
請修改下面的短文。短文中共有10處語言錯(cuò)誤,每句中最多有兩處。每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改。
增加:在缺詞處加一個(gè)漏字符號(hào)(∧),并在此符號(hào)下面寫出該加的詞。
刪除:把多余的詞用斜線( \ )劃掉。
修改:在錯(cuò)的詞下劃一橫線,并在該詞下面寫出修改后的詞。
注意:1. 每處錯(cuò)誤及其修改均僅限一詞;
2. 只允許修改10處,多者(從第11處起)不計(jì)分。
We middle school students have had many exams. We have both achieved success and suffered by failure. Different students take different attitudes towards failure.
Some fall in low spirits when they don’t do well in exams. They usually lost heart and no longer study as harder as before. And most students take an active attitude. They encourage them to be self-confident. They find out the causes that they will no longer make up similar mistakes.
As is know to all, failure is the mother of success. Even some great man may have failed many times before they succeed. So we must deal with failure correct.
查看答案和解析>>
科目:高中英語 來源:2015-2016學(xué)年湖南常德石門第一中學(xué)高一上期中英語試卷(解析版) 題型:七選五
根據(jù)短文內(nèi)容,從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。
How to cope with yesmen
Have you ever had someone in your organization who was always agreeable? A type of person who always agrees with everyone else. 1..
We have most likely all met a yesman at one time or another. Yesmen are eager to please, but find it very difficult to voice their opinion. So what can you do as a leader to cope with (對付) them?
Talk to them. The first step is an honest and objective conversation about their behavior. __ 2._ Try to get them to see how they respond in these situations so they can start to see themselves objectively(客觀地) as well.
___3. Start with a recent time when they agreed with a decision, and ask for their opinion. Keep asking "why?" or "how come?" Acknowledge their views and let them know that the rest of the team is waiting to hear what they say.
Find out why they always agree. It may be they are just very agreeable people. 4.__ Identify the causes and work with them to reduce the external (外部的) barriers to having their voice heard.
Tell them they need to disagree, constructively, when they have the next opportu- nity. When that time comes about, don't embarrass them by putting them on the spot. Instead, ask them what they think, avoid yes-no questions, and use "why" and "how come" questions to get their thoughts out there for the benefit of the team. Thank them for their ideas. 5.
A. Ask what their opinions are.
B. They should provide value to the organization.
C. Or they feel like they will be saying something stupid.
D. Even if all the ideas presented conflict with each other!
E. Sometimes the person does not realize that they agree with everything.
F. Yesmen are a challenge in any organization that values individual contributions.
G. This will build their confidence and allow them to continue doing what you have started in the future.
查看答案和解析>>
科目:高中英語 來源:2016屆山東滕州第一中學(xué)高三12月階段檢測英語試卷(解析版) 題型:語法填空
閱讀下面材料,在空格處填入適當(dāng)?shù)膬?nèi)容(1個(gè)單詞)或使用括號(hào)中單詞的正確形式。
When someone has deeply hurt you, it can be very difficult to let go of your anger. But forgiveness is possible --- and it can be surprisingly 1. (benefit) to your physical and mental health. So far, research 2. (show) that people who forgive can have more energy, better appetite and better sleep. “People who forgive show 3. (little) anger and more hopefulness,” says Dr. Frederic Luskin, who wrote the book Forgive for Good. “So it can help reduce the tiredness out of the immune system and allow people 4. (feel) more energetic.”
So when someone has hurt you, cool down first. Take a couple of breaths and think of something 5. gives you pleasure: a beautiful scene in nature, or someone you love. Don’t wait for an 6. (apologize). “Many times the person who hurt you may never think of apologizing,” says Dr. Luskin. “They may have wanted to hurt you or they just don’t see things 7. same way. So if you wait for people to say sorry, you could be waiting a very long time.”
Next keep in mind that forgiveness does not necessarily mean 8. (accept) the action of the person who upsets you. Instead, learn to look for the love, beauty and kindness around you. Finally, try to see things 9. the other person’s perspective. You may realize that he or she was acting out of ignorance. To gain perspective, you may want to write a letter to 10. (you) from that person’s point of view.
查看答案和解析>>
科目:高中英語 來源:2015-2016學(xué)年湖南兩校理科班高一上第二次聯(lián)考英語試卷(解析版) 題型:語法填空
語法填空
閱讀下面材料,在空白處填入適當(dāng)?shù)膬?nèi)容(1個(gè)單詞)或括號(hào)內(nèi)單詞的正確形式。
We can always hear voices comparing the education systems in China and the US. It's true that 1. exist a lot of differences, but this cannot be an excuse 2. having a passive attitude toward studying in China.
When I came back from the US last year and continued my senior middle school education in China, I sensed many great differences. I thought that school in China was too hard for 3. (we) students, and that we didn't get to do enough fun exercise except running around playgrounds together. My mom had a long talk with me. After that, I realized that though high school life in China is harder, it can give us 4. (much). The pressure helps us learn the true meaning of competition 5. we step into society. It gives us a strong heart and 6. (teach) us to step forward no matter what the 7. (real)is. It's like climbing a mountain. You might feel dizzy and nervous, but the top is always there 8. (wait) for you as long as you are strong enough一 9. (take) one more step.
We complain 10. (main) because we can't see the whole picture. We all need to understand that success takes efforts and tears.
查看答案和解析>>
科目:高中英語 來源:2015-2016學(xué)年江西上高二中高二上第二次月考英語試卷(解析版) 題型:短文改錯(cuò)
短文改錯(cuò)
假定英語課上老師要求同桌之間交換修改作文,請你修改你同桌寫的以下作文。文中共有10處語言錯(cuò)誤,每句中最多有兩處。每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改。
增加:在缺詞處加一個(gè)漏字符號(hào)(∧),并在其下面寫出該加的詞。
刪除:把多余的詞用斜線 (\)劃掉。
修改:在錯(cuò)的詞下劃一橫線,并在該詞下面寫出修改后的詞。
注意:1.每處錯(cuò)誤及其修改均僅限一詞。
2.只允許修改10處,多者(從第11處起)不計(jì)分。
SQ3R stand for five steps in the reading process: Survey, Question, Read, Review and Recite. The first step is survey, which helps you to predict how the author is going to say. The second step is question, which means to form questions basing on your survey. The third step is read and note something down. You’d better take note or underline something importantly while reading. The fourth step is review, which means to go over the text check your understanding and try to answer for all the questions you’ve written down while reading. The fifth step is recite, which means to make the summary of the reading in your own words. You can be sure you have understood the text although you can recite them without referring to the notes.
查看答案和解析>>
科目:高中英語 來源:2016屆河北衡水冀州中學(xué)高三上學(xué)期一輪復(fù)習(xí)2英語試卷(解析版) 題型:閱讀理解
At the age of ten I could not figure out what this Elvis Presley guy had that the rest of us boys did not have.I mean,he had a head,two arms and two legs,just like the rest of us.About nine o’clock on Saturday morning I decided to ask Eugene Correthers,one of the older boys,what it was that made this Elvis guy so special.He told me that it was Elvis’ wavy hair and the way he moved his body.
About half an hour later all the boys in the orphanage(孤兒院)were called to the main dining-room and told we were all going to downtown Jacksonville,F(xiàn)lorida to get a new pair of Buster Brown shoes and a haircut.That is when I got this big idea,which hit me like a ton of bricks. If the Elvis hair cut was the big secret,then that’s what I was going to get.
A11 the way to town I told everybody, including the matron(女管家)from the orphanage who was taking us to town,that I was going to look just like Elvis Presley and that I would learn to move around just like he did and that I would be rich and famous one day, just like him.
When I got my new Buster Brown shoes, I could hardly wait for my new hair cut and now that I had my new Busier Brown shoes I would be very happy to go back to the orphanage and practice being like Elvis.
We finally arrived at the big barber shop,where they cut our hair for free because we were orphans(孤兒).I looked at the barber and said,“I want an Elvis hair cut. Can you make my hair like Elvis?”I asked him,with a big smile on my face.“Let's just see what we can do for you,little man,”he said.I was so happy when he started to cut my hair.Just as he started to cut my hair, the matron signed for him to come over to where she was standing.She whispered something into his ear and then he shook his head,like he was telling her “No”.Then he told me they were not allowed to give us Elvis hair cuts.Then I saw my hair falling onto the floor.
1.In the author’s eyes,Elvis Presley was_________.
A.disgusting B.a(chǎn)dmirable
C.a(chǎn)mbitious D.dynamic
2.From the passage,we can know that______________.
A.Buster Brown was more appealing than Elvis Presley
B.An Elvis hair cut cost the orphans a lot of money
C.The matron did not want the boy to have an Elvis hair cut
D.The barber was unwilling to give the boy an Elvis hair cut
3.We can learn from the underlined sentence that the boy was______.
A.excited to have an Elvis hair cut
B.worried to think about the secret
C.a(chǎn)nxious to remove the ton of bricks
D.careful to seize the chance
4.How would the boy probably feel when he walked out of the barber shop?
A.Delighted. B.Guilty.
C.Self-satisfied. D.Depressed.
查看答案和解析>>
科目:高中英語 來源:2015-2016學(xué)年江蘇泰州中學(xué)高二上第二次質(zhì)檢英語試卷(解析版) 題型:閱讀理解
閱讀理解
閱讀下列四篇短文,從每小題后所給的A、B、C、D四個(gè)選項(xiàng)中,選出最佳選項(xiàng),并在答題卡上將該選項(xiàng)涂黑。
Emergency rooms (ER) are supposed to cure people but Dr. John Stemgold wonders if working in an ER in Willits made him sick. The ER was downwind of the Remco chrome plant. “I used to sit facing that window and kind of daydream out the window, looking at Remco, looking at the fog coming out of there. Then I would cough and cough.” Stemgold said.
What Dr.Stemgold didn’t know was that Remco was flowing out Chromium VI into the air--- a chemical known to cause cancer and breathing problems in humans. A recent state health department study found that people who were in Willits when Remco was in operation from 1964 to 1995 are at higher risk for cancer because of Chromium VI exposure.
Today Dr.Stemgold has lots of time to play his guitar. It turns out he has a form of breathing difficulty. Hospital chemicals cause coughing so violently that he’s broken bones and it’s cost him his career. Others in this town believe the Chromium has made them sick, too, and their families. Actually, Chromium VI was classified as a carcinogen , a cancer-causing substance, thirty years ago, Twenty years ago, a group of state scientific specialists found no exposure level below which carcinogen effects would not have some probability of occurring. Still, Remco was allowed to flow out Chromium VI into the air.
In the battle to balance public health and a healthy economy, laws often favor business, Alan Ramo is a professor of law at Golden Gate University. “There is a real drive to make money, to have employment. When there’s a real job that’s available and a theoretical risk of a chemical, jobs win out, business wins out.”
And chemicals are allowed to flood the marketplace and the government requires strict testing before any drugs can be sold. But the vast majority of industrial chemicals are put into use little testing of any kind Chemicals that people like us, you and me might be exposed to. Marilyn Underwood is with California state health department. “ You need to have the convincing evidence that something is bad to then start regulating it.” However, in most cases, chemicals are not tested until someone reports the abnormal, unnatural condition of the environment in general.
“I think that if people really knew what really goes on with environmental protection I think they would be shocked and they should be.” Says Professor Ramo. “It might be valuable for other people to know what has happened to me, not for me but for them.” He said “because they might be in a similar situation because of where they work.”
1.What happened to the people who lived in Willits from 1964-1995?
A. most of them were forced to move away.
B. They earn a lot of fortune from the factory or the profit it brought about.
C. employees from local area all got sick and lost their jobs at the plant.
D. They have a greater chance of having severe disease.
2.What can we infer from the scientists’ finding twenty years ago?
A. Chromium VI surroundings help surgeons have more casual life.
B. More skillful and capable doctors were needed.
C. There is no safe level of Chromium VI exposure.
D. A group of scientists were trying proper ways to solve the problems.
3.When are new chemicals for industry tested?
A. When they make smog-forming gases.
B. When some problem is noticed.
C. Ten years after they are first used.
D. When the plant faces collapse.
4.One of the important issues in the story is______.
A. The dangers of emergency rooms that create health problem downwind.
B. Doctors prescribing too many drugs.
C. The battle to balance public health and a healthy economy
D. Why scientists restricted chemical, like Chromium VI
查看答案和解析>>
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com