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Dear Mr Li,

I am very glad to be a guest of your family. Thank you for accepting me.

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Best wishes!

Yours sincerely,

Jim

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In an effort to discourage people from using plastics, scientists have been hard at work inventing alternative packaging products.

The idea of using seaweed£¨º£²Ý£© to make eco-friendly water bottles has been around for a few years. Recently, Ari Jonsson took his invention¡ªa water bottle made from red seaweed¡ªto show off at a festival. The bottles will only hold their shape as long as they are filled. As soon as these bottles are empty they will begin to break down, though they would be perfectly safe to eat. Ari Jonsson's bottles are a step closer to a widely used alternative to the current plastic ones.

The eatable water container is not the only product to add to our image of the future. Narayana Pessapaty has also created eatable spoons. After the success of his spoons, Mr. Pessapaty is ready to expand and introduce forks and chopsticks to his menu. His aim is to largely reduce the amount of plastic waste, which is a huge problem for waste sites all over the world. It is a product that may take up to 500 years to break down, and recycling companies worldwide are struggling to deal with it.

Aside from the obvious benefits to the environment, this new packaging is also cheap to produce and therefore cheap to buy. Even better is the fact that similar eatable cutlery can be made at home, possibly a science project for children or just fun with friends. Why not experiment and create your own recipes?

1.Why do scientists invent alternative packaging products?

A. To make people's life more convenient.

B. To show off their inventive talents.

C. To change the way we picnic outside.

D. To reduce the amount of plastic waste.

2.What makes Art Jonsson's water bottles eco-friendly?

A. They can be made at home.

B. They are cheap to produce and buy.

C. They will hold their shape when they are filled.

D. They will break down themselves when empty.

3.What do Ari and Narayana's inventions have in common?

A. They are convenient to carry.

B. They are safe to eat.

C. They can be used for a short time.

D. They are heavier than plastics.

4.What can be inferred from this passage?

A. Home-made eatable cutlery is likely to be popular.

B. Eatable cutlery will completely replace plastics in the near future.

C. No recycling companies can break down plastic waste.

D. It's unsafe for individuals to invent eatable cutlery at home.

Hummingbirds(·äÄñ) are one of nature¡¯s most energetic fliers and the only birds to hover(ÅÌÐý) in the air by relying on their strength alone.

Now scientists have found that it is the ratio(±ÈÖµ) of the bird¡¯s wing length to its width that makes them so efficient. The discovery is helping experts compete with 42 million years of natural selection to build helicopters that are increasingly efficient.

David Lentink, an assistant professor at Stanford University in California, tested wings from 12 different species of hummingbirds, which he sourced from museums. He placed them on a machine used to test the aerodynamics(ÆøÁ¦Ñ§) of the helicopter blades(½°Ò¶). Professor Lentink¡¯s team used the same machine to test the blades from an advanced micro-helicopter used by the UK¡¯s army. They found that the micro-helicopter¡¯s blades are as efficient at hovering as the average hummingbirds.

But while the micro-helicopter¡¯s blades kept pace with the average hummingbird wings, they could not keep up with the most efficient hummingbird¡¯s wing. The wings of Anna¡¯s hummingbird were found to be about 27 percent more efficient than the man-made micro- helicopter¡¯s blades.

While Professor Lentink wasn¡¯t surprised at nature¡¯s superiority, he said that helicopter blades have come a long way. ¡°The technology is at the level of an average hummingbird,¡± he said. ¡°A helicopter is really the most efficient hovering device that we can build. The best hummingbirds are still better, but I think it¡¯s amazing that we¡¯re getting closer. It¡¯s not easy to match their performance, but if we build better wings with better shapes, we might match hummingbirds.¡±

Professor Lentink said that we don¡¯t know how hummingbirds maintain their flight in a strong wind, how they navigate(È·¶¨·½Ïò) through branches, or how they change direction so quickly. He thinks that great steps could be made by studying wing aspect ratios-the ratio of wing length to wing width. Understanding these abilities and characteristics could be a benefit for robotics and will be the focus of future experiments.

1.What did the scientists find about hummingbirds?

A. Their wings are long and wide

B. They can hover in the air for a long time

C. The ratio of their wing length to wing width is very important

D. They are the most energetic flier in nature

2.Which is the right order of Professor Lentink¡¯s research?

¢ÙTested wings from different species of hummingbirds

¢ÚGot resources from museums

¢ÛAnalyzed the results and drew a conclusion

¢ÜTested the blades from a micro-helicopter

A. ¢Ù¢Ú¢Û¢Ü B. ¢Ú¢Ù¢Û¢Ü

C. ¢Ú¢Ü¢Ù¢Û D. ¢Ú¢Ù¢Ü¢Û

3.According to Professor Lentink, what will be the focus of future experiments?

A. To know how hummingbirds can fly in a strong wind

B. To know how hummingbirds change direction so quickly

C. To develop a new kind of helicopter

D. To study the secrets of hummingbirds

The American newspaper has been around for about three hundred years. In 1721, the printer James Franklin, Benjamin's older brother, started the New England Courant, and that was what we might recognize today as a real newspaper. He filled his paper with stories of adventure, articles on art, on famous people, and on all sorts of political subjects.

Three centuries after the appearance of Franklin's Courant, few believe that newspapers in their present printed form will remain alive for long. Newspaper companies are losing advertisers, readers, market value, and, in some cases, their sense of purpose at a speed that would not have been imaginable just several years ago. The chief editor of the Times said recently, "At places where they gather, editors ask one another, 'How are you?', as if they have just come out of the hospital or a lost law case.¡± An article about the newspaper appeared on the website of the Guardian, under the headline ¡°NOT DEAD YET.¡±

Perhaps not, but the rise of the Internet , which has made the daily newspaper look slow and out of step with the world, has brought about a real sense of death. Some American newspapers have lost 42% of their market value in the past three years. The New York Times Company has seen its stock drop by 54% since the end of 2004, with much of the loss coming in the past year. A manager at Deutsche Bank suggested that stock-holders sell off their Times stock. The Washington Post Company has prevented the trouble only by changing part of its business to education; its testing and test-preparation service now brings in at least half the company's income.

1.What can we learn about the New England Currant?

A. It is mainly about the stock market.

B. It marks the beginning of the American newspaper.

C. It remains a successful newspaper in America.

D. It comes articles by political leaders.

2.What can we infer about the newspaper editors?

A. They often accept readers' suggestions

B. They care a lot about each other¡¯s health.

C. They stop doing business with advertisers.

D. They face great difficulties in their business.

3.Which of the following found a new way for its development?

A. The Washington Post B. The Guardian

C. The New York Times. D. New England Courant

4.How does the author seem to feel about the future of newspapers?

A. Satisfied B. Hopeful

C. Worried D. Surprised

I was a shy kid. Nothing seemed harder than talking to people. I didn't even like to answer the phone for fear that I¡¯d have to talk to somebody I didn¡¯t know.

____, at school I had to spend all day in the company of others. My ________was studying. It was something I could do ______and by myself. I spent a lot of time studying and was ________with good grades.

Eventually I went to college. I came to realize that some people were rather fun to _______with. Yet my childhood _______carried over and I found myself tongue-tied and ______whenever I found myself in a conversation.

One day while on campus, I ________an advertisement for a position on the local classical music ______station. I had grown up listening to classical music, and I loved it.

In order to get the job, applicants needed to be interviewed. I had absolutely no background in radio, and the idea of listeners ______me. I didn¡¯t really want the job. I just wanted to prove that I could talk to a(n)______.

Two weeks _______, I was even more terrified to discover and I had actually landed the job.

It was a ______job, but I grew to enjoy it. I announced music to thousands of ________in the city, sometimes answering their calls and _______to their requests. I began to feel comfortable talking to these people, these strangers who I couldn¡¯t even _______.

Although I now spend much time talking with people, I¡¯m still basically a _______person. My former shyness is a gift, as I can ______people who feel discomfort when they talk to strangers. I still enjoy moments of being _______. But I¡¯m also glad I decided to make a ______in my life that has opened many doors and opportunities that I never knew existed.

1.A. However B. Therefore C. Otherwise D. Besides

2.A. advice B. practice C. task D. escape

3.A. obviously B. simply C. quietly D. poorly

4.A. filled B. rewarded C. decorated D. faced

5.A. help out B. catch up C. put up D. hang out

6.A. happiness B. shyness C. kindness D. goodness

7.A. excited B. astonished C. embarrassed D. interested

8.A. noticed B. posted C. realized D. believed

9.A. fire B. gas C. TV D. radio

10.A. terrified B. pleased C. satisfied D. amazed

11.A. child B. singer C. interviewer D. applicant

12.A. ago B. later C. before D. since

13.A. well-paid B. puzzling C. comfortable D. challenging

14.A. listeners B. followers C. viewers D. dancers

15.A. referring B. responding C. offering D. comparing

16.A. feel B. move C. hear D. see

17.A. busy B. warm C. quiet D. smart

18.A. look into B. relate to C. combine with D. worry with

19.A. alone B. alive C. active D. awake

20.A. plan B. mistake C. change D. dream

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Many years ago,I was working as a psychologist at a children's institution in England.One day an adolescent boy____in my office.His headmaster had____him to me."David,"he wrote,"is very sad since both his parents died. He refuses to talk and I'm very____about him.Can you help?"

How could I help him?There are human tragedies psychology doesn't have the____to.Sometimes the best thing one can do is to listen____.

The first two times we met,David didn't say a word.I____we play a game of chess the third time he came.He ____.After that we played chess every Wednesday afternoon in____.It's not easy to cheat in chess,____I made sure David won once or twice.It seemed as if he enjoyed my____.But why did he never talk with me?

"Perhaps he____needs someone to share his pain with,"I____.Some months later,I sat staring at David's head, while he was bent____the chessboard.Suddenly,he looked up at me.

"It's your____,"he said.

After that day,David started talking. He got friends in school and joined a bicycle club.He wrote me____a few times about how he would try to get into university.The letters____after some time.I knew he had really started to live a(n)____life.He needn't write me any more to tell me that.

Maybe I gave David something.At least I____a lot from him.For example,David showed me____one¡ªwithout any words¡ªcan reach out to another person.All it____is a hug,a shoulder to cry on,a friendly touch and an ear that listens.

1.A. turned out B. showed up C. stood out D. called up

2.A. led B. drove C. reminded D. referred

3.A. disappointed B. dissatisfied C. concerned D. confused

4.A. medicine B. answer C. method D. hope

5.A. closely B. regretfully C. pitifully D. tearfully

6.A. remembered B. suggested C. announced D. demanded

7.A. refused B. nodded C. allowed D. admitted

8.A. silence B. excitement C. turn D. time

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

10.A. humor B. experience C. wisdom D. company

11.A. firstly B. simply C. similarly D. hardly

12.A. found B. doubted C. thought D. predicted

13.A. on B. off C. down D. over

14.A. fault B. time C. way D. tum

15.A. promises B. letters C. opinions D. choices

16.A. remained B. continued C. stopped D. lost

17.A. normal B. comfortable C. poor D. rich

18.A. saw B. learnt C. asked D. expected

19.A. when B. whether C. how D. why

20.A. matters B. takes C. leaves D. gets

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