It seems that electronic devices just keep getting smaller. Scientists in the United States have announced the creation of the first transistor with only two dimensions（二維）.

A transistor is a small electronic device that transfers or carries electronic current. Scientists hope these new 2D transistors will be used for building high-resolution（高分辨率）displays that need very little energy.

Two groups of scientists created these 2D transistors. They report that the transistors are only a few atoms thick.

Usually transistors are made with the element silicon（硅）. Computer processors, memory chips, TV screens and other electronic devices contain billions of silicon-based transistors. But these very small electrical parts have certain limitations.

Dimitris Ioannou is an electrical engineering professor at George Mason University. He says the traditional transistor has been improved as much as it can be.He adds that researchers have been looking for new materials with special features and they want transistors to be seen through and soft.

“If the layers are very thin, the transistor can become flexible, so it doesn't have to be rigid（堅(jiān)硬的）, like it would be in a silicon chip. So people can think of applications like wearable electronics, television screens and other things,” said Ioannou.

These new transistors can also carry higher current. They also can move the current much faster than traditional transistors. This is important for high-definition screens.

Dimitris Ioannou says the scientific success could prove very useful in the future. "Now, how good and how useful it will be, it's still in the stage of research, but it certainly is an advance," said Ioannou.

1.Which of the following statements about the newly created transistor is TRUE?

A. They are expected to be used in high-resolution displays.

B. The transistors are made with the element silicon.

C. They are rigid, just like traditional transistors.

D. They have already been put into actual use.

2.What does the underlined sentence in Paragraph 5 mean?

A. The traditional transistors have been changed into two-dimensional ones.

B. Many of the traditional transistors have been improved over the years.

C. The traditional transistor has been developed to its fullest.

D. The traditional transistor has been developed quite well.

3.What is Dimitris Ioannou's attitude towards the creation of the new transistors?

A. Negative. B. Neutral.

C. Indifferent. D. Positive.

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科目：高中英語 來源：河北省2017屆高三上學(xué)期第14周周測英語試卷 題型：閱讀理解

There have always been a lot of commonly believed but false ideas about being fat and doing exercise. Some people believe that they can’t help putting on weight as they get older, while others hold that if they stop exercising, their muscles will turn into fat. Here are some more myths:

I’ll never lose weight--I come from a fat family

Wrong! While we can't change the body type we are born with, we can't blame our genes for making us fat. There's plenty of evidence that fatness runs in families, and the main reason is that they share the same habit of eating too much and exercise too little.

I am fat because I burn calories slowly

Wrong! Fatness is not caused by a slow metabolism(新陳代謝).In fact, although fat people consume more energy than slim people, they also fail to realize how much they eat! Keeping a diary can help you work out your daily food intake mom accurately.

Exercise is boring

Wrong! Anything will become boring if you do it repetitively. The key is to develop a balanced and varied program that's fun as well as progressive. If you enjoy a Sunday walk, take a different mute. If you do yoga, try a Tai chi class. If you like swiping, set yourself a distance or time challenge.

No pain, no gain

Wrong! Exercise is not meant to hurt. Indeed, pain is you body telling you something's wrong, and continuing to exercise could lead to serious injury. You may experience mild discomfort as you begin to exercise regularly, but this is your body adapting to the positive changes in your lifestyle and the aches should disappear relatively quickly. If they don't, rest and seek medical advice.

1.What does the author think about being fat?

A. It is the family genes that make people fat.

B. People are fat because they consume too little energy.

C. A diary of exercise can prevent people from becoming fat.

D. It is the consequence of people's unbalanced lifestyle.

2.According to the author, how can we make exercise mom interesting?

A. By taking varied exercise. B. By choosing simple exercise.

C. By doing regular exercise. D. By sticking to outdoor exercise.

3.What is the author's opinion about "No pain, no gain" in exercising?

A. Keeping lit is essentially a painful experience.

B. Exercise should be stopped if continuous pain is felt.

C. Pain in exercise is a precondition for reaching your goal.

D. Getting used to pain leads to positive changes in your body.

4.What is the purpose of the passage?

A. To declare the importance of keeping lit.

B. To clarify some misconceptions about fatness and exercise.

C. To confirm what has long been believed about keeping fit.

D. To explain some medical facts about being fat and doing exercise.

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科目：高中英語 來源：福建省廈門市2017屆高三3月質(zhì)量檢測英語試卷 題型：完形填空

Sometimes you meet an ordinary person doing something extraordinary. On a recent trip I met Normand Gallant. Normand is someone you could pass on the street and _______ notice but he is a very special person who___________ recognition.

Norm lives in a remote area far from the _________ big hospital, so when his wife_________ cancer several years ago, Norm was faced with a four hour_______to where she could be treated. That meant lots of_________ for meals, fuel, hotels and so on. But in the end the cancer took his wife _______.

Norm was obviously_________ by his wife's passing, but he was also very angry, _________ he realized that other people were________ the same sorts of hardships. He wanted to do something but he didn't want to give money to the ________ that support cancer research because he didn't know how much would actually get to the researchers. What he did was to __________ parties.

About every three weeks on Saturday evenings, there is a party in Norm's garage. There is music and dancing, and ________ during the evening Norm tells about a family who are having difficulties __________the cost of supporting a cancer patient undertaking __________ far from home. Then a honey-pail is passed around and the money ________, every cent of it goes ________ to that family.

Norm's personal loss has ________ an act of kindness that honors the __________ of the wife he has lost. Wouldn't it be ________if we had more people in the world like Normand Gallant? He makes the world a better place.

1.A. often B. ever C. always D. never

2.A. deserves B. dislikes C. avoids D. achieves

3.A. best B. nearest C. cleanest D. cheapest

4.A. discovered B. cured C. examined D. developed

5.A. flight B. walk C. drive D. wait

6.A. trouble B. expense C. efforts D. preparations

7.A. anyway B. somehow C. meanwhile D. instead

8.A. impressed B. stricken C. moved D. terrified

9.A. if B. although C. before D. because

10.A. understanding B. questioning C. facing D. settling

11.A. doctors B. families C. organizations D. hospitals

12.A. attend B. promote C. throw D. enjoy

13.A. at some point B. by this means C. for some reason D. in this case

14.A. calculating B. decreasing C. budgeting D. meeting

15.A. research B. treatment C. responsibility D. risk

16.A. collected B. distributed C. saved D. deposited

17.A. gradually B. smoothly C. directly D. explicitly

18.A. served as B. resulted from C. gone through D. contributed to

19.A. memory B. recovery C. cancer D. kindness

20.A. interesting B. nice C. precious D. meaningful

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科目：高中英語 來源：湖北省襄陽市2017屆高三第五次適應(yīng)性考試英語試卷 題型：完形填空

A few years ago, an elderly woman entered my video store, along with her daughter. The______was showing an air of impatience,______her watch every few seconds. If the daughter had possessed a rope, she would have ______ her mother to it as a means of pulling her along.

The old woman began to pick DVDs herself. I walked over and asked ______I could help her find something. The woman smiled up at me and showed me a________on a piece of paper.______rushing off to find the DVD for the woman, I asked her to______with me so I could show her where she could find it and I wanted to enjoy her______for a moment. Something about her movements ______ the memories of my own mother, who’d _____. As we walked along the back of the store, I described what was on the shelves: old television shows, action movies, cartoons, science fiction. The woman seemed glad of the unrushed “trip" and ______ conversation.

I said to her daughter,“_____some advice?”“ Of course not,” said the daughter. “____her” I said. “When she’s gone, it’s those precious ______that will come back to you. Times like this, I know.” It was_______ .I still missed my mom and remembered the times when I’d used my impatience to make her______ .

Together they ____ their way toward the store’s exit. They stood there for a moment, side by side,______the holiday crowds. Then the daughter glanced over and looked at her mother lovingly. And slowly, she placed her arm with apparently unaccustomed affection ______ her mother’s shoulders and______guided her back into the crowd.

1.A. mother B. daughter C. merchant D. waitress

2.A. checking B. fixing C. adjusting D. removing

3.A. accustomed B. fastened C. applied D. devoted

4.A. why B. when C. how D. if

5.A. receipt B. ticket C. title D. tip

6.A. Instead of B. Regardless of C. Apart from D. As to

7.A. jog B. trade C. walk D. communicate

8.A. holiday B. time C. stay D. company

9.A. called on B. called for C. called up D. called in

10.A. died away B. passed away C. moved away D. given away

11.A. meaningless B. convincing C. serious D. casual

12.A. Offer B. Lack C. Mind D. Prepare

13.A. Seize B. Cherish C. Forgive D. Leave

14.A. chances B. feelings C. moments D. presents

15.A. true B. appropriate C. reasonable D. impossible

16.A. puzzled B. astonished C. desperate D. upset

17.A. took B. made C. felt D. headed

18.A. observing B. expecting C. approaching D. following

19.A. around B. against C. beneath D. down

20.A. deliberately B. hurriedly C. randomly D. gently

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科目：高中英語 來源：“超級全能生”浙江省2017屆高三3月聯(lián)考英語試卷（有答案） 題型：書面表達(dá)

假定你是李華。你從互聯(lián)網(wǎng)上得知第十二屆國際未來商業(yè)領(lǐng)袖峰會（International Future Business Leader Summit）將在上海舉行，并歡迎中學(xué)生參加。請你寫一封電子郵件申請參加。要點(diǎn)如下：

1.自我介紹（包括英語能力）；

2.申請參加活動的意圖（增長商業(yè)知識、提高領(lǐng)導(dǎo)力、加強(qiáng)交流）；

3.希望獲準(zhǔn)。

注意：1.詞數(shù)80左右；

2.可適當(dāng)加入細(xì)節(jié)，使內(nèi)容充實(shí)，行文連貫。

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科目：高中英語 來源：四川省2016-2017學(xué)年高二下學(xué)期期中考試英語試卷 題型：完形填空

I still remember the first day of school our professor introduced a little old lady named Rose to us. I was curious about what might have _____ her to be taking on this challenge at her age. “I always _____ having a college education and now I’m getting one!” she told me. I like listening to this “time machine” as she ______ her wisdom and experience with me.

At the end of the term, we ____ Rose to make a speech to our football team. As she began to deliver her _____ speech, she dropped her note card on the _____ . A little embarrassed, she simply said, “I’m sorry. This whiskey is ______ me! I’ll never get my speech back in order so let me just tell you what I know.” As we laughed, she _______ her throat and began, “We do not stop _____ because we are old; we grow old because we stop playing. There are some secrets to staying _______ , being happy, and achieving success. You have to laugh and find _____ every day. Have a dream. When you ______your dreams, you die. We have so many people walking around who are ________ and don’t even know it! There is a huge ______ between growing older and growing up. ______ you are nineteen years old and lie in bed for one full year and don’t do one _______ thing, you will turn twenty years old. That doesn’t ______ any talent or ability. The elderly usually don’t have______ for what they did, but rather for things they did not do.”

One week after graduation, Rose _____ peacefully in her sleep. We will remember the wonderful woman who taught us by example that it’s never too late to be all we can_________ be.

1.A. forced B. motivated C. expected D. supported

2.A. dreamed of B. picked up C. turned down D. gave away

3.A. developed B. compared C. organized D. shared

4.A. carried B. informed C. educated D. invited

5.A. dull B. broken C. prepared D. long

6.A. table B. home C. floor D. office

7.A. saving B. killing C. helping D. hurting

8.A. cured B. showed C. created D. cleared

9.A. playing B. working C. jumping D. resting

10.A. wealthy B. clever C. young D. useful

11.A. courage B. spirit C. respect D. humor

12.A. lose B. treasure C. fail D. live

13.A. crazy B. dead C. alive D. curious

14.A. balance B. difference C. relation D. instruction

15.A. As B. Unless C. If D. Though

16.A. productive B. wasteful C. considerate D. strange

17.A. miss B. seek C. take D. gain

18.A. regrets B. rights C. games D. ideas

19.A. smiled B. died C. cried D. acted

20.A. quickly B. reasonably C. silently D. possibly

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科目：高中英語 來源：遼寧省六校協(xié)作體2016-2017學(xué)年高一下學(xué)期期初英語試卷 題型：短文改錯

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處語言錯誤,每句中最多有2處.涉及一個單詞的增加、刪除或修改。

增加:此行缺一個詞在缺詞處加一個漏字符號（/\），在其下面寫出該加的詞。

刪除:把多余的詞用斜線（\）劃掉。

修改:在錯的詞下劃一橫線，在該詞下面寫出改正后的詞。

注意: 1.每處錯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 。

It is interested to look at differences between schools in different countries. In many European countries which the relationship between teachers and students is quite formal, discipline and respect for the teacher is considered as very important. In northern European countries, however, the relationship between teachers and students are more relaxed and much friendly. In America, for example, the relationships are quite formal and the same is true of Britain. Other important difference is whether schools are state schools and private schools. State schools are paid by the government while in private schools, the education of the children is paid for by his parents.

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科目：高中英語 來源：廣東省2017屆高三第三次模擬考試英語試卷 題型：書面表達(dá)

假定你是李華，你和父母在澳洲旅游期間于5月1日至2日入住Golden Bay Hotel酒店，但對其提供的服務(wù)不滿意: 1. 搬運(yùn)工送到房間的皮箱破損；

2. 衛(wèi)生間漏水；

3. 樓下酒吧噪音持續(xù)到很晚，影響休息。請發(fā)電子郵件給酒店的管理者進(jìn)行投訴，希望改進(jìn)服務(wù)。

注意：1. 文章必須包括所有要點(diǎn)�？蛇m當(dāng)增加細(xì)節(jié)，以使文章連貫。

2. 詞數(shù)100，文章開頭結(jié)尾已給出，不計(jì)入總詞數(shù)

3. 參考詞匯：搬運(yùn)工porter ; 漏水leak

Dear Manager,

My name is Li Hua. ______________________________________________________________________

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours sincerely,

Li Hua

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科目：高中英語 來源：遼寧省瓦房店市2016-2017學(xué)年高一6月基礎(chǔ)知識競賽英語試卷 題型：閱讀理解

Monday 2nd January

I am in a small village in the Carpathian Mountains, north of Bucharest, the capital of Romania. I’ve come to see the brown bears, which come to the villages at night to look for food. They walk 20 kilometres a night to get here. A farmer told me that some of his sheep have been killed by bears. But this is unusual. Usually, the bears just take bits of food which people have thrown away. Tonight I hope I’ll see them.

Tuesday 3rd January

Last night I waited with a group of tourists and as it grew dark, we saw the huge black shapes of bears. It seems the bears don’t go for people, unless they are attacked first. They were not afraid of the tourists, who took photos of them. Those clever bears knew where to go for their dinner. They jumped straight into the rubbish, where there was lots of food which people had thrown away.

Wednesday 4th January

Although it’s wonderful to see the bears in the village, it can only mean one thing: their habitat is disappearing. They would prefer to stay hidden in the mountain forests, but the trees have been cut down for firewood. So they cannot find enough food any more.

Thursday 5th January

Today I met the head of the Carpathian Animal Protection Group. He says that there are only about 2,500 bears left, and is worried that they will soon become extinct. Rich people from other countries pay a lot of money to come and shoot the bears for sport. The poor people from these villages need the money. But perhaps they could make more money from the tourists who want to come just watch the bears; and this would continue in the future. Once the bears are all dead, the tourists will stop visiting the village. But if the bears keep visiting the villages, then, perhaps, so will the tourists.

1.The best title for this passage would be _____________.

A. Hungry Brown Bears B. Brown Bears in the Forest

C. Wandering Brown Bears D. Brown Bears—A Wonder

2.It is unusual to the writer that ________________.

A. the brown bears like to be taken photos of.

B. the bears come out at night to look for food

C. the bears just take bits of food thrown away

D. the bears have attacked a farmer’s sheep

3.The villagers could continue to earn money from the bears if _________.

A. they shot the bears for sport

B. people paid more money to kill them

C. more tourists came to see the bears

D. the villagers sold the bears’ skins to tourists

4.What will happen to the bears in the future?

A. They may be kept in zoos.

B. They may become extinct.

C. They may keep eating rubbish.

D. They may be watched by visitors.

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