Researchers Jose Cordova and Erich Astudillo have discovered a new molecule(分子) that kills the bacteria Streptococcus Mutans, long known to be responsible for breaking down sugars in food in the mouth, which damages tooth leading to decay(腐爛). The new molecule they call “Keep 32” has been found to kill the bacteria.

The two have applied for a patent(專利) on their discovery and have also begun a marketing strategy aimed at both oral care products and food products. They say either product, if left in the mouth for just 60 seconds ,will kill all the harmful bacteria in the mouth and keep them at bay for several hours. If the new molecule passes health and safety tests, the two believe products using their new molecule should be on the market in as little as a year and a half. They expect the market for such a product to reach $300 million in just the first year.

The two have been working together since 2005 using money from the Founder Institute and say the aim is to approve the process for creating the molecule they’ve discovered for big companies like Procter & Gamble, Colgate even candy companies such as Hershey’s. In interviews, Astudillo has suggested that the two researchers are already heavily into discussion with several companies, some of which are interested in buying the patent once it is approved.

Over the years many products have come on the scene with announcement of reducing tooth decay and even the loss of teeth, but other than the introduction of fluoride(氟化物) into drinking water, not much progress has been made. If the announcement made by this new team proves true however, it could foresee a mark in saving the world of tooth decay as well as helping to improve the health for millions of people as tooth decay has been linked to many other health problems throughout the body including heart attacks.

1.The underlined word “them” in Para. 2 refers to _________.

A. oral care products B. food products

C. new molecules D. the harmful bacteria

2.The phrase “come on the scene” in Para. 4 is closest in meaning to __________.

A. performed B. occurred

C. existed D. arrived

3.What has been a way to reduce tooth decay and even the loss of teeth over the years?

A. Using the molecule “Keep 32”.

B. Killing the bacteria Mutans.

C. Introducing fluoride into drinking water.

D. Cooperating with some big companies.

4.This passage mainly tells us that ___________.

A. many health problems are closely connected to tooth decay

B. the discovery of a new molecule will greatly benefit health care

C. two researchers are discussing their patent with companies

D. researchers discover a molecule that can kill tooth decay-causing bacteria

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科目:高中英語 來源:2015-2016學(xué)年牡丹江第一高級(jí)中學(xué)高二上期中英語試卷(解析版) 題型:閱讀理解

Even before my father left us, my mother had to go back to work to support our family. Once I came out of the kitchen, complaining, “ Mum, I can’t peel potatoes. I have only one hand.”

Mum never looked up from sewing. “ You get yourself into that kitchen and peel those potatoes,” she told me. “ And don’t ever use that as an excuse for anything again!”

In the second grade, our teacher lined up my class on the playground and had each of us race across the monkey bars, swinging from one high steel rod to the next. When it was my turn, I shook my head. Some kids behind me laughed, and I went home crying.

That night I told Mum about it. She hugged me, and I saw her “we’ll see about that” look. The next afternoon, she took me back to school. At the deserted playground, mum looked carefully at the bars.

“ Now, pull up with your right arm,” she advised. She stood by as I struggled to lift myself with my right hand until I could hook the bar with my other elbow. Day after day we practiced, and she praised me for every rung I reached.

I’ll never forget the next time, crossing the rungs; I looked down at the kids who were standing with their mouths open.

One night, after a dance at my new junior high, I lay in bed sobbing. I could hear Mum came into my room. “ Mum,” I said, weeping, “ None of the boys would dance with me.”

For a long time, I didn’t hear anything. Then she said, “Oh, honey, someday you’ll be beating those boys off with a bat.” Her voice was faint and cracking. I peeked out from my covers to see tears running down her cheeks. Then I knew how much she suffered on my behalf. She had never let me see her tears.

1.Which of the following expressions can be used most suitably to describe Mum’s attitude when she made the child peel potatoes?

A. Cruel B. Serious

C. Strict D. Cold

2. What does the underlined sentence in Paragraph 4 imply?

A. Mum believed every aim could be achieved if you stuck to it.

B. The race across monkey bars was not difficult enough for a child to give up.

C. Mum was determined to prove she herself was better than the teacher.

D. What the child had said brought Mum great attraction and curiosity.

3.When the child looked down at the kids, they were standing with their mouths open because ______.

A. they felt sorry for what they had done before.

B. they were afraid the author might fall off and get hurt.

C. they wanted to see what the author would do on the bars.

D. they were astonished to find the author’s progress.

4.The most probable conclusion we can draw after reading the passage is ____.

A. the last incident was sad enough to make Mum weep

B. the child’s experience reminded Mum of that of her own

C. Mum could solve any problem except the one in the last paragraph

D. Mum suffered more in the process of the child’s growth actually

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科目:高中英語 來源:2014-2015學(xué)年浙江省溫州市十校聯(lián)合體高三第一次月考英語試卷(解析版) 題型:閱讀理解

People are being lured(引誘)onto Facebook with the promise of a fun, free service, and don’t realize that they’re paying for it by giving up loads of personal information.Facebook then attempts to make money by selling their data to advertisers that want to send targeted messages.

Most Facebook users don’t realize this is happening.Even if they know what the company is up to, they still have no idea what they’re paying for Facebook, because people don’t really know what their personal details are worth.

The biggest problem, however, is that the company keeps changing the rules.Early on, you could keep everything private.That was the great thing about Facebook—you could create your own little private network.Last year, the company changed its privacy rules so that many things—your city, your photo, your friends’ names—were set, by default(默認(rèn)), to be shared with everyone on the Internet.

According to Facebook’s vice president Elliot Schrage, the company is simply making changes to improve its service, and if people don’t share information, they have a “l(fā)ess satisfying experience.”

Some critics think this is more about Facebook looking to make more money.Its original business model, which involved selling ads and putting them at the side of the page, totally failed.Who wants to look at ads when they’re online connecting with their friends?

The privacy issue has already landed Facebook in hot water in Washington.In April, Senator Charles Schumer called on Facebook to change its privacy policy.He also urged the Commission to set guidelines for social-networking sites.“I think the senators rightly communicated that we had not been clear about what the new products were and how people could choose to use them or not to use them,” Schrage admits.

I suspect that whatever Facebook has done so far to invade(侵犯)our privacy, it’s only the beginning,which is why I’m considering deactivating(撤銷) my account.Facebook is a handy site, but I’m upset by the idea that my information is in the hands of people I don’t trust.That is too high a price to pay.

1.What do we learn about Facebook from the first paragraph?

A.It is a website that sends messages to targeted users

B.It makes money by putting on advertisements

C.It earns money by selling its user’s personal data

D.It provides a lot of information to its users

2.What does the author say about most Facebook users?

A.They don’t know their personal data enriches Facebook

B.They are unwilling to give up their personal information

C.They don’t identify themselves when using website

D.They care very little about their personal information

3.Why does Facebook make changes to its rules according to Elliot Schrage?

A.To help its users make more friends

B.To obey the Federal guidelines

C.To make money by attracting more users

D.To offer better service to its users

4.What does Senator Charles Schumer argue for?

A.Setting guidelines for advertising on websites

B.Setting rules for social-networking sites

C.Stopping sharing user’s personal information

D.Removing ads from all social-networking sites

5.Why does the author plan to stop using his Facebook account?

A.He is dissatisfied with its service

B.He finds many of its users untrustworthy

C.He doesn’t want his personal data abused

D.He is upset by its frequent rule changes

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科目:高中英語 來源:2016屆江西師大附中九江一中高三上學(xué)期期中英語試卷(解析版) 題型:短文改錯(cuò)

短文改錯(cuò) (共10小題; 每小題1分, 滿分10 分)

假定英語課上老師要求同桌之間交換修改作文, 請(qǐng)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)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。

Last weekend, I helped my grandparents with their trip to the Dalian. On Saturday morning, together with my grandparents, I search the Internet for the train schedule, the weather in Dalian, and some hotel informations. In the afternoon, they went to the train station and managed to buy two tickets for my grandparents although there had a long queue. After dinner, I packed the things into the suitcase, what my grandparents would need, such as clothes, glasses, an umbrella, a map. The next morning, I went to the station to show them off. Waved goodbye to them on the platform, I felt happily for them and wished them a safe journey.

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科目:高中英語 來源:2016屆河北保定第一中學(xué)高三上第三次復(fù)習(xí)英語試卷(解析版) 題型:閱讀理解

8:30 PM

Outlook

Outlook is back with a new series of reports to keep you up to date with all that’s new in the world of entertainment. Stories go all the way from the technical to the romantic, from stage to screen. There will be reports of the stars of the moment, the stars of the future and the stars of the past. The director with his new film, the designer with the latest fashion, and the musician with the popular song are part of the new Outlook. The program is introduced by Fran Levine.

9:00 PM

Discovery

When a 10 -year –old boy gets a first class degree in mathematics or an 8-year- old plays chess like a future grand master, they are considered as geniuses. Where does the quality of genius come from? Is it all in the genes or can any child be turned into a genius? And if parents do have a child who might become a genius in the future, what should they do ? In this 30-minute film, Barry Johnson, the professor at School of Medicine, New York University will help you discover the answer.

10:00 PM

Science/Health

Is it possible to beat high blood pressure without drugs? The answer is “yes”, according to the researchers at Johns Hopkins and three other medical centers. After a study of 800 persons with high blood pressure, they found that after 6 months, those devoted to weight-loss exercise and eating a low-salt, low-fat food lost about 13 pounds and became fitter. Plus, 35% of them dropped into the “normal” category. This week, Dr. Alan Duckworth will tell you how these people reduce their blood pressure to a level similar to what’s achieved with Hypertension drugs.

1. From Outlook, you can get a great deal of information about _____________.

A. famous stars B. story tellers

C. film companies D. music fans

2. Who will be most probably interested in Discovery?

A. Parents who want to send their children to a school of medicine.

B. Children who are good at mathematics.

C. Parents who want their child to become another Albert Einstein.

D. Children who are interested in playing chess.

3.According to the third text, which of the following has almost the same effect as Hypertension drug?

A. Low-salt and low –fat food.

B. Loss of thirteen pounds in weight

C. Six months of exercise without drugs.

D. Exercise plus a healthy diet.

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科目:高中英語 來源:2015-2016學(xué)年湖北襄陽市四校高一上學(xué)期期中英語試卷(解析版) 題型:書面表達(dá)

假設(shè)你叫李華,現(xiàn)在是重點(diǎn)高中第一中學(xué)的一名新生。根據(jù)提示給你初中的英語老師王老師寫一封信,介紹你現(xiàn)在的高中生活:

①已經(jīng)適應(yīng)新的學(xué)校,與同學(xué)相處融洽,

②學(xué)習(xí)有困難,不過取得一些進(jìn)步,請(qǐng)老師不用掛念,你會(huì)努力學(xué)習(xí)的。

③最后表達(dá)對(duì)他的感謝和尊敬。

注意事項(xiàng):

① 詞數(shù)120左右;

② 文章的開頭和結(jié)尾已經(jīng)給出,不計(jì)入總詞數(shù)。

Dear Mr. Wang,

I miss you very much.

Yours sincerely,

Li Hua

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科目:高中英語 來源:2016屆北京市校高三上學(xué)期10月月考英語試卷(解析版) 題型:單項(xiàng)填空

It is good manners to eat up ______ is left in your plate.

A.thatB.whatC.whichD.a(chǎn)ll

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John Smith先生是一位加拿大籍教師,今天他給你們做了一個(gè)講座,介紹了有關(guān)加拿大的情況。請(qǐng)你根據(jù)John Smith先生的講座,寫一篇報(bào)告,向全校英語老師介紹加拿大的有關(guān)情況。

要點(diǎn)包括:1. 加拿大約占世界四分之一陸地面積,是世界第二大國(guó);

2. 人口稀少,全國(guó)人口約3200萬,居民主要講法語和英語;

3. 氣候區(qū)域差別很大;

4. 多湖泊,淡水資源豐富;

5. 豐富的森林資源,是世界最大紙張出口國(guó)。

要求:1. 詞數(shù)100左右。

2. 不要逐句翻譯。

3. 出口:export.

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科目:高中英語 來源:2016屆重慶市高一下學(xué)期期末考試英語試卷(解析版) 題型:單項(xiàng)填空

Today we have chatting rooms, text messaging and emailing, but we seem ______ the art

of municating face to face.

A. losing B. to be losing

C. to be lost D. having lost

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