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 (地殼), 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 (上地殼) 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(裂縫)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(拼圖),”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

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科目:高中英語 來源:2016屆黑龍江省哈爾濱高三第一次三校聯(lián)合模擬考英語試卷(解析版) 題型:閱讀理解

Tu Youyou has become the first Chinese woman to win a Nobel Prize, for her work in helping to create an anti-malaria(瘧疾) medicine. The 84-year-old’s route to the honour has been anything but traditional. In China, she is being called the "three nos" winner: no medical degree, no doctorate, and she’s never worked overseas.

In 1967, malaria, a then deadly disease, spread by mosquitoes was decimating Chinese soldiers fighting Americans in the jungles of northern Vietnam. A secret research unit “Mission 523 “was formed to find a cure for the illness. Two years later, Tu Youyou was instructed to become the new head of “Mission 523”.

“Mission523” read ancient books carefully for a long time to find historical methods of fighting malaria. When she started her search for an anti-malarial drug, more than 240,000 compounds(化合物) around the world had already been tested, without any success. Finally, the team found a brief reference to one substance, sweet wormwood(青蒿), which had been used to treat malaria in China around 400 AD. The team took out one active compound in wormwood, and then tested it. But nothing was effective until Tu Youyou returned to the original ancient text. After another careful reading, she changed the drug recipe one final time, heating the compound without allowing it to reach boiling point.

After the drug showed promising results in mice and monkeys, Tu Youyou volunteered to be the first human recipient of the new drug. “

In any case, Tu Youyou is consistently praised for her drive and passion. One former colleague. Lianda Li, says Ms Tu is “unsociable and quite straightforward”, adding that “if she disagrees with something, she will say it.”

Another colleague, Fuming Liao, who has worked with Tu Youyou for more than 40 years, describes her as a “tough and stubborn woman”. Stubborn enough to spend decades piecing together ancient texts, she applies them to modern scientific practices. The result has saved millions of lives.

1.According to Para. I, we can learn that_______.

A. Tu is the first woman to win a Nobel Prize

B. Tu has a medical degree

C. Tu’s road to success is not traditional

D. Tu discovered a cure for malaria

2. The underlined word “decimating” can be replaced by_______.

A. encouraging B. killing

C. annoying D. benefiting

3. Which of the following statements is true?

A. Tu first invented the idea of using sweet wormwood as a cure.

B. Tu was inspired by medical textbooks published in northern vietnem.

C. The compound needs to be heated to the boiling point to be effective.

D. Over 240,000 compounds were proved ineffective before Tu’s seareh.

4.Tu Youyou can be best described as a _______ person.

A. devoted and stubborn

B. straightforward and mean

C. considerate and tough

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科目:高中英語 來源:2016屆江西師范大學(xué)附屬中學(xué)高三上學(xué)期第一次月考英語試卷 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)。

Many of us are so busy with work, school and home life that often there is no time left over to do something that you enjoy.What follows are some ways to carve out that essential time you need to slow down, enjoy life and relax yourself.

Evenings with yourself.1. If others ask you to do things those nights, just tell them you have plans.Use the time for gardening, reading, exercise, thinking or the ultimate luxury of doing nothing !

Monthly treat.Schedule a treat for yourself once a month.2. Maybe you get a spa treatment, go to see a movie, a haircut, play golf or whatever treat you're always thinking about but rarely get to.Schedule it in and it will happen!

3. Sports, theater, concerts or any other event you would enjoy.Schedule the plans with a friend later.Having the tickets already in hand will force you to make it happen!

Leave work on time.Huh? 4.If this is you, make it a point to leave work exactly on time at least once a week, if not more.And then enjoy that time! Leave work at work.

Join a group.Here are some ideas of groups that can allow you some time away from work and home: singing group, gardening group, astronomy society, book club, biking club, ski club, etc.What are you interested in? Strike while the iron is hot.5. If you can't find a club, consider starting one yourself!

A.It could be on your lunch break, a weekend or it could be leaving work early.

B.Don’t ignore your friends.

C.Look up a club in your area today and join!:.]

D.Buy tickets in advance.

E.Try to save certain weeknights just for you.

F.It is suggested that you join as many groups as possible.

G.Yes, many of us stay at work late on a regular basis.

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科目:高中英語 來源:2016屆湖北武漢華中師大第一附中高三上學(xué)期期中英語試卷(解析版) 題型:書面表達(dá)

假如你是李華,你打算參加11月份舉行的武漢市中學(xué)生英語演講比賽。請(qǐng)你以李華的名義寫一篇主題為“感恩”的演講稿。

內(nèi)容包括:

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2.你會(huì)成為一個(gè)懂得感恩的人嗎?說說你的打算。

注意:

詞數(shù):120詞左右。

開頭和結(jié)尾已寫好,不計(jì)入總詞數(shù)。

Good afternoon, everyone! It’s a great honor for me to speak here.____________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

Thank you for listening.

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科目:高中英語 來源:2016屆山東日照一中高三上學(xué)期期末英語試卷(解析版) 題型:完形填空

完形填空

閱讀下面短文,從短文后各題所給的四個(gè)選項(xiàng) (A、B、C和D)中,選出可以填入空白處的最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。

My Air Force room in Florida was empty and quiet—I was alone. My five roommates were gone for their ________ ; I had chosen to ________ behind in the camp. Being young and far from my home, I felt ________ . My room was comfortable enough, but I hadn’t ________ until then what made it so—the presence of others walking, joking or just lying on their ________ .

I was not able to sleep. In fact, I________ being alone sometimes, but tonight was ________ . Turning over again and again in the darkened room gave no ________ . The last sign of daylight had disappeared, ________ to my inner depression. ________ , the Christmas lights on the tall pine trees would only ________ me of my great misery.

________ , I heard weak sound of men attempting to sing. Yes, the voices grew louder and came my way. I ________ still, enjoying the sound.

In the corridor (走廊) outside my ________ , voices came near enough for ________ to hear Christmas carols being sung. Suddenly, there, four airmen, identities unknown, were slightly unsteadied by holiday cheer. The first held a Coke bottle with a ________ candle stuck in its top. The others ________ a dancing line behind him.

Seeing I was in the room, with joyful ________ in the flickering(搖曳的) light, they sang me several carols, ________ me a merry Christmas and left as fast as they had arrived.

I slept soundly soon after, burying my face in my pillow, ________ that someone had cared.

1.A. presents B. fights C. holidays D. weekends

2.A. remain B. sleep C. help D. work

3.A. guilty B. silly C. curious D. lonely

4.A. prepared B. realized C. recovered D. awoken

5.A. toys B. food C. beds D. floors

6.A. imagined B. preferred C. suggested D. began

7.A. different B. busy C. good D. simple

8.A. balance B. effort C. comfort D. progress

9.A. adding ` B. appealing C. leading D. sticking

10.A. Therefore B. Otherwise C. Yet D. Besides

11.A. cure B. remind C. rob D. think

12.A. Suddenly B. Sadly C. Unluckily D. Lately

13.A. stared B. sang C. lay D. observed

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16.A. lighted B. falling C. burned D. flying

17.A. broke B. crossed C. formed D. drew

18.A. noises B. quarrels C. necks D. faces

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20.A. grateful B. satisfied C. doubtful D. hopeful

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科目:高中英語 來源:2016屆廣東汕頭金山中學(xué)高三上學(xué)期期末英語試卷(解析版) 題型:閱讀理解

Why You Should Celebrate Your Mistakes

When you make a mistake, big or small, cherish(珍視) it like it's the most precious thing in the world, because in some ways, it is.

Most of us feel bad when we make mistakes, beat ourselves up about it, feel like failures, get mad at ourselves.

And that's only natural: most of us have been taught from a young age that mistakes are bad, that we should try to avoid mistakes. We've been scolded when we make mistakes at home, school and work. Maybe not always, but probably enough times to make feeling bad about mistakes an unconscious reaction.

Yet without mistakes, we could not learn or grow. If you think about it that way, mistakes should be cherished and celebrated for being one of the most amazing things in the world: they make learning possible; they make growth and improvement possible.

By trial and error-trying things, making mistakes, and learning from those mistakes-we have figured out how to make electric light, to paint the ceiling of the Sistine Chapel, to fly.

Mistakes make walking possible for the smallest toddler, make speech possible, make works of genius possible.

Think about how we learn: we don't just consume information about something and instantly know it or know how to do it. You don't just read about painting, or writing, or computer programming, or baking, or playing the piano, and know how to do them right away. Instead, you get information about something, from reading or from another person or from observing usually...then you construct a model in your mind...then you test it out by trying it in the real world...then you make mistakes...then you revise the model based on the results of your real-world experimentation and repeat, making mistakes, learning from those mistakes, until you've pretty much learned how to do something. That's how we learn as babies and toddlers, and how we learn as adults. Mistakes are how we learn to do something new, because if you succeed in something, it's probably something you already knew how to do. You haven't really grown much from that success---at most it's the last step on your journey, not the whole journey. Most of the journey was made up of mistakes, if it's a good journey.

So if you value learning, if you value growing and improving, then you should value mistakes. They are amazing things that make a world of brilliance possible.

1.Why do most of us feel bad about making mistakes?

A. Because mistakes make us suffer a lot.

B. Because it's a natural part in our life.

C. Because we've been taught so from a young age.

D. Because mistakes have ruined many people's careers.

2.According to the passage, what is the right attitude to mistakes?

A. We should try to avoid making mistakes.

B. We should owe great inventions mainly to mistakes.

C. We should treat mistakes as good chances to learn.

D. We should make feeling bad about mistakes an unconscious reaction.

3.The underlined word "toddler" in Paragraph 6 probably means __________.

A. a small child learning to walk

B. a kindergarten child learning to draw

C. a primary school pupil learning to read

D. a school teenager learning to write

4.We can learn from the passage that __________.

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B. growing and improving are based on mistakes

C. we learn to make mistakes by trial and error

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科目:高中英語 來源:2015-2016學(xué)年吉林大學(xué)附中高二上學(xué)期期末英語試卷(解析版) 題型:其他題

選詞填空

從下列方框中所給的詞和短語中選出適當(dāng)?shù)脑~或短語,并用其適當(dāng)形式填空。

appeal to let out be opposed to in place

leave out be addicted to subscribe to be exposed to

flexible range attempt typical

1.Once you ___________ smoking, it is hard to break the habit.

2.He chose those books that ___________ him.

3.I like to have everything ___________, so I can find them easily.

4.It is nothing unusual. It is ___________ of him to be late for work.

5.What if we were more ___________ with what we could do with our time?

6.To learn English well, I have to ___________ some magazines.

7.If the film ___________ to light, the photo can not develop.

8.They failed in all their ___________ to climb the mountain.

9.Mary accidentally ___________ secret that her mother had telephoned.

10.He is a good physician and leader. He must ___________ drug abuse.

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科目:高中英語 來源:2015-2016學(xué)年遼寧葫蘆島一中高一下學(xué)期期初考英語試卷(解析版) 題型:閱讀理解

Nearly a quarter century after a German boy threw a message in a bottle off a ship in the Baltic Sea, he's received an answer.

A 13?year?old Russian, Daniil Korotkikh, was walking with his parents on a beach when he saw something lying in the sand.

“I saw that bottle and it looked interesting, ” Korotkikh told The Associated Press on Tuesday.“It looked like a German beer bottle and there was a message inside.”

It said, “My name is Frank, and I'm five years old.My dad and I are travelling on a ship to Denmark.If you find this letter, please write back to me, and I will write back to you.” The letter, dated 1987, included an address in the town of Coesfeld.

The boy in the letter, Frank Uesbeck, is now 29.His parents still live at the letter's address.

The Russian boy and the German man met each other earlier this month through an Internet video link.The Russian boy said he did not believe that the bottle actually spent 24 years in the sea.He believed it had been hidden under the sand where he found it for a long time.

Uesbeck was especially happy that he was able to have a positive effect on a life of a young person far away from Germany.“It's really a wonderful story, ” he said.“And who knows? Perhaps one day we will actually be able to arrange a meeting in person.”

1.What is this passage mainly about?

A.Message in a bottle. B.A beautiful beer bottle.

C.Travelling on a ship. D.Meeting an old friend.

2.When the German boy threw the bottle into the sea, ________.

A.he was going back home

B.he was already 29 years old

C.he was walking with his parents on a beach

D.he was travelling to Denmark by ship with his dad

3.According to the text, which of the following statements is TRUE?

A.Korotkikh's parents still live in the town of Coesfeld.

B.The German boy did not believe that the bottle actually spent 24 years in the sea.

C.Frank Uesbeck and Daniil Korotkikh have met each other in person.

D.Daniil Korotkikh and Frank Uesbeck have got in touch with each other.

4.Why was Uesbeck very happy when he got the information of the 24 years' message bottle?

A.Because he could have a new friend.

B.Because the two boys could surf the Internet together.

C.Because he finally got what he had lost.

D.Because he could have a positive influence on a life of a young person.

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科目:高中英語 來源:2015-2016學(xué)年四川樂山第一中學(xué)高二上學(xué)期期中英語試卷(解析版) 題型:其他題

用方框內(nèi)所給詞的適當(dāng)形式填空

in conclusion keep one’ word absorb let off follow in the footsteps of apology result in illegal cut back on argue

1.At last, Mr Smiths declared that they would ______ the production of computers by ten percent.

2.Since he had a(n) ___ with his wife, he hasn’t spoken to her even if they sit next to each other.

3.He ________ other famous scientists and tried to make contributions to the important research.

4.We’d better believe him because he is always ___________________.

5.____________, I wish China Daily European Weekly every success in the Year of the

Monkey and years beyond.

6.She felt guilty about what she had done and _________ to her friend for it.

7.When lying on the sofa, _________ in her book, Mary didn’t notice her parents come in.

8.Yesterday two people are arrested at the train station for bringing animals into China from the Korea ___________.

9.You may also want to _________ some steam(過剩精力) by drawing, writing or anything else that relaxes yourself.

10.Some chemical factories pour waste water into rivers for convenience, _________ serious water pollution.

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