【题目】 You and your friends are leaving a concert on a Friday night. When you get outside, your ears are ringing. You have to shout to be heard. 【1】 So no harm done…right?

Not quite. Temporary buzzing may be easy to ignore, but repeated exposure to loud noise will eventually cause serious--- and irreversible(无法治愈的)--- hearing loss. A new study conducted by researchers at Brigham and Women’s Hospital in Boston shows that one in five people between the ages of 12 and 19 are experiencing slight hearing loss, and one in 20 have mild hearing loss. 2

But the good news is that there plenty of ways you can protect your ears from further damage and still listen to the music you love:

Ask around. Put your earbuds in or your headphones on, and then ask a friend next to you whether or not he or she can hear what you’re listening to. 3 Turn it down.

Buy noise-canceling headphones. A pair of earbuds or headphones that fits comfortably will limit outside noise so that you can hear your music better at lower volumes.

Take breaks. 4 So when listening to music, take your headphones off for 15 or 20 minutes and let your ears enjoy the quiet.

5 You can buy a cheap pair at any drugstore as an easy way to lower volume at concerts or while playing or practicing your own music without changing the quality of the sound.

A. Use earplugs.

B. Keep the volume below 70 percent.

C. If th answer is yes, your music is too loud.

D. Like every other part of your body, your ears need rest.

E. But by morning, your hearing is totally back to normal.

F. Unfortunately, there’s no way to get back hearing you’ve already lost.

G.. The exposure to noise is louder and longer than in any previous generation.

【题目】Scientists have long understood the key role that oceans play in regulating the Earth’s climate. Oceans cover 70 percent of the globe and store a thousand times more heat than the atmosphere does. What’s newer is the understanding of how this key component of our climate system responds to global warming.

A brake on global warming for now

One of oceans’most important climate functions is absorbing heat and carbon dioxide (CO2), one of the gases that cause global warming. Acting as a heat sponge (海绵), oceans have absorbed huge amounts of heat and CO2 in the last forty years.

Fujita explains that "oceans are saving us from faster climate change they are a big flywheel that delays rapid overheating of the Earth, putting a brake on the climate system."

"That’s the good news," he adds. "The bad news is that oceans only slow the atmospheric warming. Once oceans come to balance with a greenhouse gas warmed earth, the extreme heat will remain in the atmosphere and things will get much hotter." But where and how oceans release this accumulated (积累的) heat is uncertain. And as oceans store heat, fragile underwater ecosystems are struggling.

The most recent scientific report from the Intergovernmental Panel on Climate Change (IPCC) also notes with concern that oceans are acidifying because of increased absorption of atmospheric CO2, and thus causing a threat for shell-forming species. Sharp increases in carbon dioxide levels will cause further acidification of oceans.

Currents distributing heat

Another important role oceans play is that of distributor. Oceans deliver heat and life-sustaining nutrients around the globe. Just as blood vessels bring oxygen and nutrients to cells in the human body, oceans’ currents carry oxygen, nutrients and heat throughout the Earth. Oceans distribute 25 percent to 50 percent of the energy the planet receives from the sun. For example, the Gulf Stream carries heat across the Atlantic. This warm current gives northwestern Europe a milder climate than it would normally have so far north. A change to oceans’ circulation (循环) patterns could throw Europe into a colder period, even as the rest of world experiences warmer temperatures.

1We can infer from the passage that .

A.oceans cause global warming

B.oceans stop global warming

C.oceans release nutrients and heat

D.ocean ecosystems face more dangers

2From the passage we can learn that oceans’ currents .

A.produce oxygen and nutrients everywhere

B.absorb 25% to 50% of the energy from the sun

C.distribute heat and nutrients around the globe

D.change oceans’ circulation patterns

3Which of the following is NOT the result of oceans absorbing heat and carbon dioxide?

A.It causes further acidification.

B.It affects shell-forming species.

C.It makes the atmosphere hotter.

D.It regulates the Earth’s climate.

4This passage mainly talks about .

A.the roles of oceans B.global warming

C.ocean currents D.carbon dioxide

【题目】The National Geographic Channel has unearthed a time capsule (时光宝盒) buried by late Apple chairman and co-founder Steve Jobs thirty years ago.

The time capsule was buried in Aspen, Colorado, in 1983, shortly after Jobs attended the International Design Conference being held in that city. Organizers called the device the Aspen Time Tube and contributed items like Rubik's cubes(魔方) and some iconic music. Jobs added his own items to the capsule, including the " Lisa" ( also known as an "Apple" ) mouse" he used for his presentation at the conference.

Younger readers may not recognize the name but the Lisa Apple mouse was one of the first commercial mice released to consumers. The mouse was specially designed for the Apple Lisa computer. It's also the first personal computer to offer users a graphical user interface(图形用户界面)

Initially, the plan was to dig up the time capsule in the year2000, but organizers forgot its exact location. Recently, they brought in researchers working with the National Geographic Channel show Diggers to find the device. Eventually they came across the 13-foot-long, 1.5-foot-diameter tube. Inside they found a lot of 1980s artifacts(人工制品)that are still being catalogued.

“When the end came off, literally things just poured out.” noted Diggers host Tim Saylor "There must be literally thousands of things in there.”

“They had the foresight to put a bunch of stuff in plastic bags." Saylor said. “I could see at least a dozen plastic bags and other items. But I know for sure there got to the photographs in there. /span>People had hand-written things on the back of the photographs, so there will be some really interesting things inside.”

Among the artifacts researchers expect to discover inside: a Steve Jobs speech in which the Apple visionary outlines his predictions for future technologies. We should know more about the researchers, discoveries once the Diggers program airs this fall.

1Which of the following is true about the Lisa mouse?

A. The mouse was the first commercial one for consumers.

B. The mouse was created only for the Apple Lisa computer.

C. The mouse was buried in Aspen, Colorado for two decades.

D. The mouse was invented after the International Design Conference.

2Why wasn't the time capsule dug up in 2000?

A. Because it was not the time set by Steve Jobs.

B. Because it could not be accurately located.

C. Because organizers forgot its precise shape.

D. Because the local government didn't approve.

3From the passage we can infer that_______.

A. there were some special photographs found-inside the time capsule

B. a Steve Jobs speech with future predictions was found inside the cap

C. Steve Jobs predictions for future technologies have come true

D. more about the capsule will be discovered in the Diggers program

4The best title for the passage might be _______.

A. The "Lost" Steve Jobs Time Capsule

B. The Mystery of Steve Jobs Speech Solved

C. Steve Jobs' 1983 Time Capsule Recovered

D. Co-founder & Former Apple CEO Steve Jobs

【题目】Babies who watch TV are more likely to show late learning development and language at 14 months, especially if they are watching programs aimed at adults and older children, according to a new study, which would probably surprise those parents who leave their babies in front of a TV set.

Babies who watched 60 minutes of TV daily had developmental scores a third lower at 14 months than babies who were watching less TV. Although their developmental scores were still in the normal range, the difference may have been due to the fact that when children and parents are watching TV, they are missing the talking, playing and other communications that are important to learning and development.

This new study, which appeared in the Aechives of Pediatric and Adolescent Medicine, followed 259 lower-income families in New York, most of whom spoke Spanish as their primary language at home. Other studies of higher-income families have also come to the same conclusion: TV watching is not only non-educational, but it seems to slow down babies’ development.

But what about “good” TV, like Sesame Street? The researchers didn’t find any difference when compared to non-educational programs designed for small children, like Spongebob SquarePants. Earlier research by some of the same scientists, most of whom are at New York University School of Medicine’s Bellevue Hospital Centre, has found that parents whose children watch non-educational TV programs like Spongebob SquarePants spend less time reading to their children or teaching them.

At this point, parents reading this will probably be astonished. TV is so often a parent’s good friend, keeping children happily occupied(占时间)so that the adults can cook dinner, answer the phone, or take a shower. But, clearly, this electronic babysitter(保姆)is not an educational aid. It is best to make sure the babies are fast asleep if you have to watch TV.

【1】According to the first paragraph, 14-month-old babies who watch TV probably_______.

A. learn things quickly

B. prefer programs for older children

C. surprise their parents with their development

D. speak later than babies who don’t

2Babies who watched 60 minutes of TV daily had lower developmental scores perhaps because _______.

A. they watch non-educational programs

B. they have little communication with their parents

C. they lost interest in real things

D. their parents don’t speak English at home

3We can infer from the passage that______.

A. Educational and non-educational TV have different effects on babies

B. Many parents leave babies to the TV to do their own things

C. Educational TV is very popular among higher-income families

D. Lower-income families tend to teach their babies at home

4Which would be the best title for the passage?

A. Developing Better Learning Ability

B. A New Study on Babies’ Bad Habits

C. TV Watching Is Bad for Babies’ Brains

D. Make Sure Your Babies Watch “Good” TV Programs

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