Sort out the papers to be thrown away, and put the rest back．题目和参考答案——青夏教育精英家教网—

题目内容

Sort out the papers to be thrown away, and put the rest back．

答案：
解析：

把要丢掉的文件挑出来，其余的放回去。

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New security camera can “see” through clothes

New technology that can “ see ” through clothing and detect what ’ s underneath can now be used to scan crowds, making it a potentially effective tool to prevent terrorist attacks in public places.

The Thru Vision T5000 camera picks up Terahertz rays ，or T-rays, which are naturally sent out by all objects and can pass through clothes or even walls. The camera can then detect metallic and nonmetallic objects hidden under clothing on still or moving subjects without showing any body detail.

While similar technology is seen at airports around the world, the T5000 is designed to be used in large, open areas. With a range of 25 meters, the T5000 can screen people in public places, thus avoiding bottle-necks at border crossing or security checkpoints. It also means people can be screened without knowing it.

The technology develops from British astronomers ’ work in studying dying stars. Astronomers use T-ray cameras to see through dust and clouds in space. The company sees uses for its camera at other sites where political or business activities take place.

For privacy concerns，Thru Vision Chief Executive Clive Beattie said the image produced by the camera did not show detailed parts of the body. ” It's almost a shining light bulb(灯泡）.“ Beattie said. "You don' t see the detail that people might be concerned about. “ In London' s busy Piccadilly Circus—which is already filled with closed -circuit surveillance (监视）cameras— reaction to the new technology was mixed. Some said the camera was going too far and violating privacy，but others said they are willing to put safety before privacy concerns. “ There ’ s surveillance everywhere anyway, “ said one commuter. “I don' t think it’ s much of a difference. I don' t care that they can see through me because they can see me anyway.“

Some experts said the privacy violation of the camera was not worth the benefit. “ What we should consider is how much we want to lose our privacy in order to obtain a sort of national security，” said David Murakami Wood，director of the Surveillance Studies network，which deals with surveillance and privacy problems. “ In most cases this isn' t real security—it ’ s a sense of safety that has very little real effect. ”

What can we learn about T5000?

A. It can detect metallic and nonmetallic objects underneath.

B. It can see through clothing or walls by sending out T-rays.

C. It was first used to observe stars by astronomers.

D. It is widely used at airports around the world.

What is the most probable purpose of the new invention?

A. To improve people ’ s life standard. B. For scientific research.

C. For commercial benefits. D. For safety reasons.

Which is most probably the opinion of people on using the new camera?

A. Some agree to its use as it is new technology to protect privacy.

B. Some agree to its use because safety is the most important.

C. Some don' t agree to its use because it makes no difference.

D. Some people don' t care because they know little about it.

What' s the main idea of the last paragraph?

A. Safety is more important than privacy.

B. T5000 is more beneficial than harmful.

C. T5000 does not really provide security.

D. It's not worth giving up privacy for safety.

Mothers and daughters go through so much — yet when was the last time a mother and daughter sat down to write a book together about it all? Perri Klass and her mother, Sheila Solomon Klass, both gifted professional writers, prove to be ideal co-writers as they examine their decades of motherhood, daughterhood, and the wonderful ways their lives have overlapped (重叠).

Perri notes with amazement how closely her own life has mirrored her mother’s: both have full-time careers; both have published books, articles, and stories; each has three children; they both love to read. They also love to travel — in fact, they often take trips together. But in truth, the harder they look at their lives, the more they acknowledge their big differences in circumstance and basic nature.

A child of the Depression (大萧条), Sheila was raised in Brooklyn by parents who considered education a luxury for girls. Starting with her college education, she has fought for everything she’s ever accomplished. Perri, on the other hand, grew up privileged in the New Jersey suburbs of the 1960s and 1970s. For Sheila, wasting time or money is a crime, and luxury is unthinkable while Perri enjoys the occasional small luxury, but has not been successful in trying to persuade her mother into enjoying even the tiniest thing she likes.

Each writing in her own unmistakable voice, Perri and Sheila take turns exploring the joys and pains, the love and bitterness, the minor troubles and lasting respect that have always bonded them together. Sheila describes the adventure of giving birth to Perri in a tiny town in Trinidad where her husband was doing research fieldwork. Perri admits that she can’t sort out all the mess in the households, even though she knows it drives her mother crazy. Together they compare thoughts on bringing up children and working, admit long-hidden sorrows, and enjoy precious memories.

Looking deep into the lives they have lived separately and together, Perri and Sheila tell their mother-daughter story with honesty, humor, enthusiasm, and admiration for each other. A written account in two voices, Every Mother Is a Daughter is a duet (二重奏) that produces a deep, strong sound with the experiences that all mothers and daughters will recognize.

1.Why does Perri think that her own life has mirrored her mother’s?

A. They both have gone through difficult times.

B. They have strong emotional ties with each other.

C. They have the same joys and pains, and love and bitterness.

D. They both have experiences as daughter, mother and writer.

2.The word “luxury” in Paragraph 3 means ______.

A. something rare but not pleasant

B. something that cannot be imagined

C. something expensive but not necessary

D. something that can only be enjoyed by boys

3.What is Paragraph 4 mainly about?

A. The content of the book. B. The purpose of the book.

C. The influence of the book. D. The writing style of the book.

4.How are women’s lives explored in this book?

A. In a musical form. B. Through field research.

C. With unique writing skills. D. From different points of view.

选择正确的词组,并用其适当形式填空(10分，每空1分)

die out; in peace; in danger (of); protect....from; pay attention to; come into being; dream of; to be honest ; or so; be familiar with; play jokes on; in relief; in addition; sort out; attach...to

1.The two communities live together __________________.

2. ___________________, I am not sure what to do.

3.The government is doing its best to ____those rare animals _____being hunted.

4.He will arrive at six o’clock ________________________.

5. Please _________ the things you want to keep and throw everything else away.

6. When his son came home at last, he was _________________.

7. I had warned him of the possible danger, but he didn’t __________________it.

8.She ________________________________ history.

9.I _____________________ becoming a millionaire when I was a child..

10.He is ____________________________________ losing life.

Health officials issued a waring over common energy-saving l一ghtbulbs(灯泡) after research showed some types could potentially harm the skin and may even raise the risk of cancer.

A study by the Health Protection Agency (HPA) found that some eco-friendly lightbuulbs release levels of ultraviolet (UV) (紫外线) radiation that are above recognized safety limits. The agency urged people who work with lamps nearby to avoid spending more than one hour within a foot of the eco-friendly bulbs. The warning was directed at those using desk lamps for long periods, such as jewellery makers, and others who might have lights close to their faces, such as car mechanics.

John O’Hagan, a scientist at the HPA’s centre for radiation, chemical and environmental dangers, began tests on the ligthbulbs after patient groups raised concern about them. Among the groups were patients with a skin disease called lupus, which makes people highly sensitive to light.

The tests measured UV light from the lamps and found the highest levels of UV radiation, measured 2cm from the lightbulbs, were equivalent to being outside in direct sunlight in the summer. The most immediate risk from the lightbulbs is a reddening of the skin similar to sunburn, but there is also a small increased risk of skin cancer associated with this, again similar to that of sunburn.

The risk of health problems from the lightbulbs was not so high that people should remove them from their homes. People are advised to avoid using open lightbulbs for long close work until the problem is sorted out. It has confirmed that the government will not be reviewing its strategy on introducing energy efficient lightbulbs.

1.The underlined word “equivalent” in paragraph 4 most probably means ______.

A．equal

B．vital

C．relevant

D．harmful

2.In order not to be harmed by the UV radiation from some lightbulbs, people should ______.

A．stop using eco-friendly lightbulbs at home

B．avoid using open lightbulbs for long close work

C．take care not to expose their skin to direct sunlight

D．urge the government to ban the use of lightbulbs

3.In the next part, the author would most probably further explain _____.

A．why people needn’t remove the lightbulbs from their homes

B．how researchers have planned to sort out the problem

C．how the government has responded to HPA’s discovery

D．how long people should work close to the open lightbulbs

4.We can learn from the passage that ____.

A．health officials issued a warning over common lightbulbs.

B．jewellery makers should avoid working with the eco-friendly bulbs for more than one hour

C．John O’Hagan did tests on the lightbulbs with some patients

D．people are advised to avoid using open lightbulbs for long close work

Have you ever stayed up late? If so, you know that not getting enough sleep can leave you tired and grumpy . Not sleeping enough can also make it harder to think clearly the next day.

Sleep experts have long known that getting a good night’s sleep is important.

It helps kids perform their best during the day. A recent study shows that sleep helps improve problem--- solving skills and creative thinking.

For the study, two groups of volunteers answered a math problem. The group that slept for eight hours solved the problem correctly more often than the group that did not get enough sleep.

While you sleep, your brain is busy doing its “homework”. It sorts out information from your day. Getting enough sleep each night can boost your brainpower. That will help you do your best in school. Experts say that, in return, can lead to better grades.

1.What is the best title for the passage?

A．Too Much Sleep	B．It’s Homework Time
C．Sleep to Succeed	D．Math Problems

2.The underlined word “boost” in paragraph 5 means ________.

A．reduce	B．improve
C．disturb	D．worsen

3.Why is sleep important?

A．It can improve problem-solving skills and creative thinking

B．It will help you do your best in school

C．It helps your brain sort out information from your day.

D．All of the above

4. What did the results of a recent sleep study show?

A．People who sleep enough are good at math

B．Sleep is important for learning

C．If you get enough sleep, you don’t have to do your homework

D．Adults need more sleep than kids

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