题目内容

单词拼写

根据句意和首字母或汉语提示写出单词。

1.We’ve had a very __________(正面的) response to the idea.

2. He is very s__________ with his students.

3. David is very __________(热情的) about the plan.

4. The teacher was patient with __________(退步的) children.

5. The teacher has __________(拒绝) all our ideas.

6. The boss is c__________ about making promises.

7. The police are watching the m__________ of the suspicious character carefully.

8. This theory predicates the big bang theory of the u__________.

9. Let’s s__________ the coin to decide whether to go or not.

10. She had a great eye for color and came up with some c_________ ideas for our house.

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As free as they make us, mobile phones still need to stay close to a power source. Soon that may change with "green" power.

Three Chilean students got the idea for a plant-powered device(装置) to charge their cellphones, while sitting in their school's outdoor courtyard during a break from exams, with dead mobile phones. Then, one of them had an "aha" moment.

“It occurred to Camila to say about plants, "said inventor Evelyn Aravena. "Why don't you have a socket, if there are so many plants? 'After that, we thought, why don't they have a charging outlet? Because there are so many plants and living things that have the potential to produce energy, why not? ' "

Their invention — a small biological circuit called E-Kaia - uses the energy plants to produce during photosynthesis(光合作用). A plant uses only a small part of that energy and the rest goes into the soil, and that's where the E-Kaia collects it. The device plugs into the ground and then into your phone.

"It's the most amazing project I've ever seen in my life, plain and simple. They brought this original model, and it worked — and that's when it all changed, at least from my personal point of view and I began to support them. " said Mauricio Cifuentes.

The device solved two problems for the engineering students — they needed an idea for a class project, and an outlet to plug in their phones.

"Looking for a place to charge the notebook, which had no power, and the mobile phones, we weren't able to find anything because all the other students were in the same state of madness trying to find a place to charge their devices," said Aravena.

But plants are everywhere, and the biocircuit makes the best of their excess(过多的) power.

The E-Kaia doesn't carry much charge but it's powerful enough to completely recharge a mobile phone in less than two hours.

The student inventors have applied for patents on their technology, and expect the E-Kaia to go on sale in December 2016.

1.How could the students get the "green" power idea?

A. By carrying out an experiment.

B. Just from an occasional thought.

C. With the support of their professors.

D. Enlightened(启发) by the information in a science book.

2.How does the device work?

A. By using the energy during photosynthesis. B. By using a small biological circuit.

C. By using the electricity stored in the device. D. By using a device buried in the ground.

3.What can we learn from what Mauricio Cifuentes said?

A. He intended to buy the patent.

B. The device was made in a rough way.

C. He showed great interest in the device.

D. He attempted to produce the device in large numbers.

4.What might be the best title for the passage?

A. A New Device to Change the World

B. Green Power - A New and Potential Source

C. Chilean Students Find A Green Way to Charge Phones

D. A New Device Invented by Chilean Students Will Be on Sale

A

Nikola Tesla

Long overshadowed in public memory by his one-time employer, Thomas Edison, Tesla (1856—1943) was a brilliant scientist and engineer who earned more than 700 patents. He is most famous for developing alternating current (交流电), but his work also led to advances in wireless communications, lasers, X-rays, radar, lighting, robotics, and much more.

Tesla was born to Serbian parents in what is now Croatia, but he emigrated(移民) to the U.S. as a young man, where he eventually became a naturalized citizen. Besides Edison, who later became his bitter rival, Tesla often worked with inventor George Westinghouse. In 1893, the pair demonstrated their advances in lighting and motors in the "White City" at the Chicago World’s Fair. In 1895, Tesla and Westinghouse developed the world’s first hydroelectric power plant, at Niagara Falls.

At the turn of the century, Tesla set up a laboratory called Wardenclyffe in the small community of Shoreham, Long Island, where he conducted some of his most ambitious experiments. The building was financed by J. P. Morgan and designed by acclaimed architect Stanford White.

The most prominent feature was Wardenclyffe Tower, also called Tesla Tower, a 187-foot-tall metal lattice tower topped with a big antenna that was intended to beam communications and even energy across the Atlantic.Tesla ran out of money while building the tower and was foreclosed(取消赎回权) on twice. As with his previous Colorado Springs lab, assets were sold to pay up his debts. In 1917, the U.S. government blew up the tower, fearing that German spies were using it in World War I. The metal was sold for scrap. For decades, the building was used for photo processing.

"The tower is long gone, but the three-quarter-length statue of Tesla unveiled last week is a fitting memorial," said Alcorn, a retired teacher. "This is the last remaining Tesla laboratory anywhere in the world," she said. "He inspires those who work hard but don’t get recognition, and people are starting to recognize how important his contributions are."

As a sign of that growing appreciation, Elon Musk’s start-up electric car company Tesla Motors was named after the visionary inventor in 2003.

1.We can infer from Para.1 that Tesla belong to those .

A. who aren’t brilliant enough as an inventor

B. who work hard but don’t get recognition

C. who have worked only for one employer

D. who helped Edison to earn many patents

2.The events that are related to Tesla are .

a. he moved to the U.S. to become an American

b. he entered the Chicago World’s Fair

c. he joined in American army in WWI

d. he developed the world’s first hydroelectric power plant

e. he built a lab called Wardenclyffe

A. b, c, d, e B. c, d, e, a C. a, b, d, e D. a, b, c, d

3.Why did the U.S. government destroy the tower?

A. To treat it as a sign of German’s failure in WWI.

B. To stop it from being used for photo processing.

C. To get its metal for the material of war.

D. To prevent it being used by German spies in WWI.

4. Which of the following can be seen as a sign of growing appreciation towards Tesla?

A. An electric car company was named after him.

B. A new statue of him was built in Croatia.

C. People collect money to rebuild Tesla Tower.

D. A lab was opened as a museum to Tesla.

5.The purpose of writing this passage is to .

A. explain why a car company was named Tesla

B. introduce the achievements of Tesla

C. inspire us to learn from a famous scientist

D. record the contribution made by Tesla in WWI

The Diet Zone: A Dangerous Place

Diet Coke, diet Pepsi, diet pills, no-fat diet, vegetable diet… We are surrounded by the word “diet” everywhere we look and listen. We have so easily been attracted by the promise and potential of diet products that we have stopped thinking about what diet products are doing to us. We are paying for products that harm us psychologically and physically.

Diet products significantly weaken us psychologically. On one level, we are not allowing our brain to admit that our weight problems lie not in actually losing the weight, but in controlling the consumption of fatty, high-calorie, unhealthy foods. Diet products allow us to jump over the thinking stage and go straight for the scale(秤)instead. All we have to do is to swallow or recognize the word “diet” in food labels.

On another level, diet products have greater psychological effects. Every time we have a zero-calorie drink, we are telling ourselves without our awareness that we don't have to work to get results. Diet products make people believe that gain comes without pain, and that life can be without resistance and struggle.

The danger of diet products lies not only in the psychological effects they have on us, but also in the physical harm that they cause. Diet foods can indirectly harm our bodies because consuming them instead of healthy foods means we are preventing our bodies from having basic nutrients. Diet foods and diet pills contain zero calorie only because the diet industry has created chemicals to produce these wonder products. Diet products may not be nutritional, and the chemicals that go into diet products are potentially dangerous.

Now that we are aware of the effects that diet products have on us, it is time to seriously think about buying them. Losing weight lies in the power of minds, not in the power of chemicals. Once we realize this, we will be much better able to resist diet products, and therefore prevent the psychological and physical harm that comes from using them.

1.From Paragraph 1, we learn that .

A. diet products fail to bring out people's potential

B. people have difficulty in choosing diet products

C. diet products are misleading people

D. people are fed up with diet products

2.One psychological effect of diet products is that people tend to .

A. try out a variety of diet foods

B. hesitate before they enjoy diet foods

C. pay attention to their own eating habits

D. watch their weight rather than their diet

3.In Paragraph 3, “gain comes without pain” probably means .

A. losing weight is effortless

B. it costs a lot to lose weight

C. diet products bring no pain

D. diet products are free from calories

4.Diet products indirectly harm people physically because such products .

A. are over-consumed

B. lack basic nutrients

C. are short of chemicals

D. provide too much energy

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