题目内容

The World Health Organization warns that millions of people are dying every year from indoor air pollution. The WHO finds that poor cooking, heating and lighting technologies are killing millions of people each year.

Indoor air pollution results from the use of dangerous fuels and cook-stoves in the home. To help fight the problem, the WHO announced, new guidelines aimed at reducing household pollutants.

WHO officials say nearly three billion people are unable to use clean fuels and technologies for cooking? heating and lighting. And they say more than seven million people die from exposure to indoor or outdoor air pollution each year. Of that number, the WHO says about 4. 3 million people die from household air pollution given off by simple coal cook-stoves. Most of the deaths are in developing countries.

Carlos Dora is Coordinator in the WHO's Department of Public Health, Environmental and Social Determinants of Health. He says people should not use unprocessed coal and kerosene fuel indoors. He says opening a window or door to let out the harmful air will not improve the situation. It will only pollute the outdoors.

WHO officials say indoor pollution leads to early deaths from stroke, heart and lung disease, childhood pneumonia(肺炎) and lung cancer. Women and girls are the main victims. The United Nations found that more than 95 percent of households in sub-Saharan Africa depend on solid fuels for cooking. It says huge populations in India, China and Latin American countries, such as Guatemala and Peru, are also at risk.

Nigel Bruce is a professor of Public Health at the University of Liverpool. He says researchers are developing good cook-stoves and other equipment to burn fuels in a more efficient way.

WHO experts note some new, safe and low-cost technologies that could help are already available. In India, you can buy an induction(电磁) stove for about $ 8.00. And in Africa a you can buy a solar lamp for less than $ 1. 00.

1.What has been done to reduce indoor air pollution?

A. The WHO provided selfless assistance for the poor.

B. People are forbidden to use coal-stoves inside.

C. The WHO issues official advice to cut down pollution,

D. People are taught how to correctly use their stoves.

2.According to WHO officials, we can know that

A. many people refuse to use clean fuels and technologies

B. seven million people die from indoor air pollution

C. simple coal cook-stoves cause too many deaths

D. the processed coal is dangerous to people’s heath

3.It can be concluded from the fifth paragraph that .

A. most children are suffering a lot from lung cancer

B. solid fuels are easily producing pollutants

C. sub-Saharan Africa is the poorest place

D. some countries are at the risk of using up fuels

4.What can we infer from the passage?

A. More and more will die in the future.

B. It is not hard to solve indoor air pollutants.

C. Most people cannot afford a new stove.

D. The WHO will take strong measures.

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Imagine what you could do with a machine that could make things disappear.

For inspiration, you could read some books. In the books of J.R.R. Tolkein, Bilbo Baggins finds a ring that can make him disappear. Of course, there’s also poor Harry Potter, who used his invisibility cloak (隐形斗篷) to hide from danger.

Now that you’ve got some ideas, it’s time for the hard part: building the cloak. To do that, you have to give up science fiction and turn to real science. An invisibility cloak has to cheat anything or anyone who might be watching. In order to understand how something can be seen, it’s important to understand how we see.

Human beings can only see objects that reflect (反射) light waves. These waves enter the eye and are then processed by the brain. However, if an object doesn’t reflect light, then the waves don’t enter the eye, and the brain doesn’t process. So building an invisibility cloak is building something that doesn’t reflect light.

Cummer was part of a team of scientists from Duke University, including David Smith and David Schurig, who built the world’s first version (版本) of an invisibility cloak. They had been inspired by the work of a British physicist, John Pendry. He in May said that an invisibility cloak was possible and Pendry was not the only one thinking about a disappearing act. At the same time, a Scottish physicist, UIf Leonhardt published a paper on building invisibility equipment.

“It wasn’t easy,” says Cummer. “As often happens in science and research, it didn’t work very well the first time. That first cloak didn’t work like Harry Potter’s --- the scientists didn’t actually see anything disappear. So the research is still under way. ”

1.The first two paragraphs serve as a (n) ________.

A. introduction B. explanation

C. comment D. summary

2.Cummer and other scientists got the idea of building an invisibility cloak from _________.

A. the film Harry Potter

B. the work of a British physicist

C. a paper published by a Scottish physicist

D. the book of J.R.R. Tolkein

3. From the text we learn that the research on an invisibility cloak __________.

A. was led by Pendry

B. was very successful

C. was used in most popular movies

D. is still in progress

4.What can be the best title for the text?

A. The Science of Disappearing

B. The Hardest Part of Building a Cloak

C. The Invention of an Invisibility Cloak

D. Turn Science Fiction into Real Science

Jean is a bright young lady who comes from a rich and famous family. She goes to a good university and has everything that money can buy. Well, almost everything. The problem is that the people in Jean's family are so busy that they can hardly find time to be with her. So Jean spends a lot of time on her QQ. She likes being anonymous (匿名), talking to people who do not know about her famous family and her rich life. She uses the name Linda on QQ and has made a lot of friends who she keeps in touch with quite often.

Last year Jean made a very special friend on QQ. His name was David and lived in San Francisco. David was full of stories and jokes. He and Jean had a common interest in rock music and modern dance. So it always took them hours to talk happily on QQ and sometimes they even forgot their time. Of course, they wanted to know more about each other. David sent her a picture of himself: He was a tall, good-looking young man with a big happy smile. As time went by, they became good friends and often sent cards and small things to each other.

When Jean's father told her that he was going on a business trip to San Francisco, she asked him to let her go with him so that she could give David a surprise for his birthday. She would take him the latest DVD of their favorite rock singer. But when she knocked on David's door in San Francisco, she found that her special friend was only a ten-year-old boy named Jim!

1.Jean spends a lot of her time on QQ because she is .

A. rich B. young C. lonely D. talkative

2.The following states are true about Jean EXCEPT that according to the passage.

A. she is a university student

B. she was born in a wealthy family

C. she made a friend named Jim younger than her

D. she uses her family name on her QQ

3.We could believe that Jean was when seeing Jim himself instead of David on QQ at the door.

A. delighted B. disappointed

C. regretful D. confused

Johnny Smith was a good math student at a high school. He loved his computer. He came home early every day, and then he worked with it till midnight. But Johnny was not a good English student, not good at all. He got an F in his English class. One day after school Johnny joined his computer to the computer in his high school office. The school office computer had the grades of all the students: the math grades, the science grades, the grades in arts and music, and the grades in English. He found his English grade. An F! Johnny changed his English grade from an F to A. Johnny' parents looked at his report card. They were very happy.

"An A in English!" said Johnny's Dad. "You're a very clever boy, Johnny."

Johnny is a hacker(黑客). Hackers know how to take information from other computers and put new information in. Using a modem(调制调解器), they join their computers to other computers secretly. School headmasters and teachers are worried about hackers. So are the police, for some people even take money from bank computer account and put it into their own ones. And they never have to leave home to do it! They are called hackers.

1.Johnny changed his English grade with the computer in _______.

A. the classroom B. the school office

C. a bank near his house D. his own house

2.When Johnny's parents saw the report, they were happy because _______.

A. Johnny was good at math

B. Johnny loved computers

C. Johnny could join one computer to another

D. they thought Johnny was not poor in English any longer

3.Who are worried about hackers in the story?

A. Johnny's parents

B. School headmasters, teachers and the police

C. Only the police

D. Many school headmasters and teachers

4.What should the hackers know well, do you think, after you read this story?

A. Information B. Bank computer accounts

C. Computers D. Grades

根据短文内容,从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

We are all called upon to make a speech at some point in life, but most of us don’t do a very good job. 1.

So, you have to give a speech and you are terrified. You get nervous, you forget what you want to say, you stumble over words, you talk too long, and you bore your audience. Later you think, “Thank Goodness, it’s over. I’m just not good at public speaking. I hope I never have to do that again.”

Cheer up! 2.Here are some simple steps to take the pain out of speech making. Ask yourself the purpose of your speech. What is the occasion? Why are you speaking? Then, gather as many facts as you can on your subject. Spend plenty of your time doing your research. Then spend plenty of your time organizing your material so that your speech is clear and easy to follow. Use as many examples as possible, and use pictures, charts, and graphs if they help you make your points more clearly. 3. Don’t talk over their heads, and don’t talk down to them. Treat your audience with respect. They will appreciate your thoughtfulness.

Just remember: Be prepared. Know your subject, your audience, and the occasion. Be brief. 4. And be yourself. Let your personality come through so that you make person-to-person contact with your audience. If you follow these simple steps, you will see that you don’t have to be afraid of public speaking. In fact, you may find the experience so enjoyable that you volunteer to make more speeches ! You’re not convinced yet? 5.

A. It doesn’t have to be that bad.

B. Take several deep breaths before your speech.

C. This article gives some advice on how to give good speech.

D. Say what you have to say and then stop.

E. Don’t say what you aren’t familiar with.

F. Never forget your audience.

G. Give it a try and see what happens.

Failing in something isn’t a really nice feeling, but Scotland’s Fettes College in Edinburgh wants to show its students that failure isn’t something to fear and is actually something to accept willingly!

The boarding school held “failure week” to celebrate taking risks and learning from them. Whether in sports or school, children often face lots of pressure to succeed and do well, and the school was becoming concerned.

“Young people from all walks of life live in a high-pressure environment where they are trying very hard to achieve a level of perfection,” said Sue Bruce, head of personal and social education in the school.

“This week at Fettes we have been focusing on one of the most misunderstood parts of success: failure. While we are often scared of failure, it is important to learn that it is only through failing, often many times, that we learn how to succeed. All through the week, we have looked at the experiences of some of the most successful inventors, artists and businessmen, who failed hundreds, if not thousands of times on their journey to success,” read a letter on Fettes College’s website.

To celebrate failure, students were encouraged to try something they’ve never done before, like playing an instrument or dancing in front of audiences. A number of students stepped up and tried things that they finally failed in, but they had fun and enjoyed the experience. “The concert was extremely enjoyable, proving that we should always try not to worry about failure and have a go!” read another note on the website. Students were also taught about famous people like J.K. Rowling and Richard Branson who failed many times before they finished what they set out to do.

“If they let the fear of failure stop them from doing something, they are actually stopping themselves from learning, developing, and potentially succeeding,” said Bruce.

1.What is the purpose of the boarding school to hold “failure week”?

A. To get the students involved in social activities.

B. To help the students accept and learn from failure.

C. To make the students study even harder.

D. To teach the students how to get relaxed.

2.During the “failure week” the students could do the following things EXCEPT ___________.

A. taking risks

B. learning from others’experiences

C. trying something new

D. trying to entertain themselves

3.What can we learn from the passage?

A. Many successful people are lucky and achieve success easily.

B. Because we are often scared of failure ,we never succeed.

C. The fear of failure can stop the students from learning and succeeding.

D. The students who failed in trying new things felt depressed.

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