Our planet is home to about seven billion people. Since the 1990s, population experts have predicted the number would grow to nine billion before it begins to slow down and possibly decrease.

But a new report predicts the world’s population is likely to increase to almost 11 billion by 2100. Based on the most modem statistical tools, the new report makes use of government records and considers expert predictions, including death rates, birthrates and international migration, or people moving across borders. The report says during the rest of this century, Africa’s population will grow from about 3.5 billion to 5.1 billion over the next 85 years.

John is director of the United Nations Population Division. He says that in the past, researchers thought population growth in Africa would be similar to that of other areas. They expected slower growth rates as birth control use became more widespread. But he says those ideas were wrong.

“The level of contraception use has continued to increase but slowly — more slowly than expected, and birthrate therefore has been falling less rapidly than expected, and the population therefore continues to grow somewhat more rapidly than we expected.

The new findings are based on a joint research project of the United Nations and the University of Washington,

The researchers believe the population of Asia will reach five billion by 2050. That is up from the current 4.4 billion. And then begin decline. The researchers also believe that North America, Europe, Latin America and the Caribbean area will have a total population of below one billion.

John says the pressure of feeding the rising population is likely to be less than that might be expected.

“The relatively good news is that the world has been winning the race between population growth and food production. If you look back historically over the last 50 years, certainly for the world as a whole and for many, most individual countries and regions, the increase in food production has outpaced the increase of population.”

1.Which area will experience the largest increase in population at the end of the century?

A. Asia. B. Africa.

C. Europe. D. North America.

2.“Contraception use” in the fourth paragraph refers to ________.

A. a method of expert predictions

B. a way of avoiding growth in population

C. a joint research into the rising population

D. a potential technology for food production

3.Why is the pressure of feeding the rising population less than expected according to John?

A. Expert predictions are not exactly like what the facts happen.

B. Birthrates have always been falling less rapidly than we expected.

C. The population grows less rapidly than population experts expected.

D. The increase in food production has outpaced the increase of population,

4.What can be inferred from the passage?

A. The world’s population will increase constantly.

B. The population of Asia will rise by 5 billion by 2050.

C. John is optimistic about feeding the rising population,

D. Population growth in Africa was much slower than expected.

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科目:高中英語 來源:新人教版2017-2018學(xué)年高二必修5英語: Unit 2 單元綜合測評 題型:閱讀理解

The brain is a remarkable part.It's responsible for thoughts and feelings.Now a new study finds that going through tough times as a kid also can have an impact.The adult brains of people who lived through lots of stress before the age of six—and then became depressed or anxious as teenagers—were different compared with adults who had an easier childhood.It seems that teens changed the shape of their brains by internalizing (使內(nèi)在化) the stresses experienced years earlier.

Researchers already knew that the shape and size of a child's brain can change in response to lots of stress.They also knew that adults were more likely to be depressed if,as kids,they'd lived in poverty.Some studies showed that these depressed adults had unusual changes in their brain shape.But no one had tested if the early stress and later brain changes were linked.

Scientists in England studied almost 500 boys from birth until the ages of 18 to 21.Sarah Jensen is one of the new study's authors.Almost all of the boys her team studied experienced some hard times as kids.And,she concludes,“This is not necessarily harmful.”To some extent,that's just life.What can be dangerous,she says,is when children experience too many forms of difficulties.Her team's new data suggest that the tougher the childhood,the stronger the impact on the brain might be.

What's happening in the world around us relates to how we feel.Her team linked more childhood stress to more depression.Still,she notes,it's possible that if you find support for anxiety or depression,you might be able to prevent the changes seen here.“If you can change the environment,you can change the course of things,”Sarah says.So,she recommends,if teens develop anxiety or depression,it's good to ask for psychological doctors to give advice.

1.When people had a hard childhood,

A. they will have a brave attitude to life

B. their way of thinking may be strange

C. they will be good at dealing with stress

D. the shape of their brain may be changed

2.What is the breakthrough of the new research?

A. The size of the brain can change.

B. The brain can be influenced by stress.

C. Poverty can affect the brain's shape in future.

D. Changes in brain are connected with earlier hardship.

3.It's a problem when children

A. had a lonely childhood

B. led a peaceful childhood

C. got different kinds of hardship

D. experienced limited hard times

4.For teenagers with anxiety,Sarah suggests .

A. they adapt to their life

B. they seek professional help

C. they talk to friends or relatives

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科目:高中英語 來源:內(nèi)蒙古2017-2018學(xué)年高二上學(xué)期第一次月考英語試卷 題型:閱讀理解

Devon, 17, is used to paying her own cell phone and car expenses. But lately it's been harder. The family she baby-sits for hasn’t been calling as much as usual and she couldn't find a job over the summer. Devon's dad said it's a sign of the tough economy. He told her he's feeling the pinch too and that he had to use her college fund to pay the loan(貨款).

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However, as discouraging as things may seem now, the good news is that the economy always gets back on track after a while. Jobs may be hard to find, but the slow economy can open up new opportunities. The couple Devon babysat for might cut back on evening's out, but they could be interested in hiring her for after-school care. Perhaps it's time to sell her old toys and baby gear (設(shè)備)in the basement(地下室) or help others sell these items online if she is good at it. She could charge them a fee to sell their old stuff(東西).

1.What does the underlined phrase in the first paragraph refer to?

A. Getting hurt. B. Receiving less calls.

C. Out of work. D. Short of money

2.According to the passage, what constantly appears on the screen nowadays?

A. News on the tough economy. B. Devon's family troubles.

C. Advertisements for babysitters. D. Information on yard sales.

3.What do people do to overcome the tough economy?

A. To strike for high pay. B. To open a new store to sell toys.

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4.The passage is mainly about________

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B. family troubles made by tough economy

C. ways of solving the slow economy

D. the increasing prices and expenses

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科目:高中英語 來源:河南省新鄉(xiāng)市2018屆高三(衛(wèi)星班)上學(xué)期第一次月考英語試卷 題型:七選五

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Ask questions. When you’re researching different dieting products and plans or even talking to a doctor about diets, ask as many questions as you can.2.Ask questions like: Do I have to purchase special meals or supplements? Does the program include a part to help me maintain my weight loss?

Get real. 3.Don’t burden yourself with unrealistic expectations. Remember, large amounts of weight loss are not realistic and are most likely not safe or healthy. Talk with your health care professional to determine a healthy weight goal.

4.To maintain your weight, you must balance your intake of calories with the energy you burn. Just 30 minutes of fast walking in most days can take about 10 pounds off your weight each year.

Weight yourself weekly. It’s important to track your weight on any diet or weight loss plan, but don’t get on the scale every day. weighing daily won’t show you the big picture. 5.

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C. Stick with your healthy eating plan.

D. Losing one to two pounds a week is a realistic goal.

E. Being well informed will help you choose the best diet for you.

F. Regular weight check-ins will show you your progress over time.

G. If so, you must find a way to turn that excitement into determination.

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It is often said that eyes can speak. In a bus you may look at g stranger, 1. not too long. If he notices that he is being stared at, he may feel 2. (comfort). It is the same in daily life. When you are 3. (look) at for several more times, you will look at yourself up and down to see if there is anything wrong 4. you. If nothing goes wrong, you 5. (feel) angry with the person who is looking at you. Eyes can speak, right?

6. (look) too long at someone may seem to be impolite. But sometimes things are different when it 7. (come) to staring at the opposite sex, if a man glances at a woman for more than ten seconds, his intentions are obvious, that is, he wishes to attract 8. (she ) attention, to make her understand that he is admiring her.

In fact, continuous eye contact is limited to 9. (love) only, who will enjoy looking at each other 10. (gentle ) for a long time,to show affection that words cannot express. Evidently, eye communication should be done according to the relationship between the two people.

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A home computer not only helps children master the old ways of learning, but also opens up possibilities that simply aren’t available in traditional education. Some software, for example, allows kids to make decisions and see the results in different situations. The World Wide Web encourages young minds to move easily from link to link, topic to topic. The best software draws children into learning by making them curious — what if I click on this picture, drag this over here, visit that website?

Knowing how to use a computer also encourages a child’s confidence. Kids figure out quickly that computers are powerful, and mastering the machine makes them feel grown-up. In turn, feeling confident on a computer often translates to academic (學(xué)術(shù)的) confidence. Researchers have found that attitudes toward writing, for example, improve when students write on a computer.

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Although the benefits of computers are real, they have disadvantages, too. Kids can lose their way, wasting hours on mindless software or violent games. Just as parents have always helped children make good choices about everything from friends to food, books to TV, now we must make sure they get the best out of computers.

1.The passage is mainly talking about _____.

A. the disadvantages of children’s using computers

B. the advantages of children’s using computers

C. the development of computers

D. the fact using computers makes children lose their way

2.Which of the following is NOT an advantage of a home computer?

A. It provides new ways of learning.

B. It encourages children’s confidence.

C. It can enrich family life.

D. Kids can play violent games on it.

3.What effects do computers have on family life?

A. They reduce the connection between family members.

B. They destroy the relationship between parents and kids.

C. They provide more opportunities of communication.

D. They make all the family members study together.

4.According to the last paragraph, we can learn that we should _____.

A. let children use computers freely

B. forbid children to use computers in their spare time

C. permit children to use any software they like

D. help children make good use of the computers

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科目:高中英語 來源:山東省2017-2018學(xué)年高一新人教版必修二:Unit 3 Computers 單元測試英語試卷 題型:單項(xiàng)填空

Life is a thing one can’t live all to oneself, but a thing one ______ others.

A. talks with B. likes with

C. shares with D. loves with

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科目:高中英語 來源:新人教版2017-2018學(xué)年高二必修5英語:Unit2 The United Kingdom單元練習(xí) 題型:閱讀理解

There is no better way to enjoy Scottish traditions than going fishing and tasting a little whisky(威士忌) at a quiet place like the Inverlochy Castle. When Queen Victoria visited there in 1873 she wrote in her diary, “I never saw a lovelier spot,” And she didn't even go fishing.

Scotland is not easily defined. In certain moments, this quiet land of lakes and grass mountains changes before your very eyes. When evening gently sweeps the hillside into orange, the rivers, teeming with fish, can turn into streams of gold. As you settle down with just a people and a basket on the bank of River Orchy, near the Inverlochy Castle, any frustration will float away as gently as the circling water. It's just you and purple, pink, white flowers, a perfect harmony. If you are a new comer to fishing, learning the basics from a fishing guide may leave you with a lifetime's fun. For many, fishing is more than a sport; it is an art.

Scotland offers interesting place where you can rest after a long day's fishing. Set against a wild mountain and hidden behind woodland, the beautiful Inverlochy Castle Hotel below the Nevis is a perfect place to see the beauty of Scotland's mountains. Ben Nevis is the highest of mountains, and reaching its 1342-metre top is a challenge. But it's not just what goes up that matters; what comes down is unique. More than 900 metres high, on the mountain's north face, lies an all-important source of pure water. Its name comes form the Gaelic language "usqueb" or "water of life"; and it is the single most important ingredient(原料) in Scotland's best known whisky.

1.The story of Queen Victoria is to show that  .

A. the queen is rich in tour experience

B. the Castle is a good place to go in Scotland

C. tasting whisky is better than going fishing

D. 1873 is a special year for the queen

2.How is Paragraph 2 mainly developed?

A. By giving descriptions. B. By following time order.

C. By analyzing causes. D. By making comparisons.

3.What is Ben Nevis special for?

A. The Inverlochy Castle Hotel.

B. The beauty of its surroundings.

C. The water from the mountain.

D. The challenge up to its top.

4.What is the main purpose of the passage?

A. To introduce Scottish traditions to tourists.

B. To show the attractions of Scotland to readers.

C. To explore geographical characteristics of Scotland.

D. To describe the pleasures of life in Scotland.

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科目:高中英語 來源:山東省濟(jì)南市2017-2018學(xué)年高二上學(xué)期開學(xué)考試英語試卷. 題型:書面表達(dá)

假定你是李華,你的加拿大網(wǎng)友Peter成立一個網(wǎng)上“讀書俱樂部”,邀請世界各地中學(xué)生參加。假定你對讀書特感興趣,希望加入該俱樂部,請用英文寫一封自薦信。要點(diǎn)如下:

1.你對此事情的看法,并表達(dá)積極參加的愿望;

2.陳述自己的有利條件,如癡迷于讀書,中英文閱讀和寫作能力強(qiáng)等;

3.若成為會員,會給其他會員提供更多幫助并使自己讀更多的書。

注意:1.不要逐詞逐句地翻譯;

2.為使語句連貫,可以適當(dāng)增加細(xì)節(jié);

3.詞數(shù)100左右,開頭和結(jié)尾已給出,不計(jì)入總數(shù)。

Dear Peter,

I’m Li Hua. I’d like to join your “Reading Club” on the Internet. ……

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Yours sincerely,

Li Hua

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