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听音频，回答题 Did you ever wonder what occurs inside your body when something funny happe

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Did you ever wonder what occurs inside your body when something funny happens？ What is this thing we have in our brains that makes us say "ha-ha" when someone26abanana？

One way to find out is to watch the brain laugh. That"s what Dartmouth neuroscientist William Kelley did. He and his team had a number of volunteers watch an27of Seinfeld while being monitored by an MRI， a machine that allows researchers to see which parts of the brain are active at any 28 time. They then matched the MRI data with the laugh track to see how the brain changes when it"s 29 something funny. There"s no one "funny center" in the brain——but the findings were pretty.

When subjects were looking at something funny， the two regions in their left hemispheres lit up. From 31 studies these regions are known to be associated with resolving unclear meanings. Is there something in "getting it" that"s 32 the process by which we work with unclear information until we suddenly see the pattern in it？

A couple seconds later two other brain regions became 33， called the insula（岛叶） and the amygdala（扁桃腺）. The insula is associated with 34， so it seems likely that this is the brain feeling good when it gets the joke——the "ha-ha" response. The amygdala is associated with memory formation. As the researchers35，while you may not be able to remember every plot detail in an episode of a soap opera， you can probably remember the jokes. Humor stays with us， forming a lasting memory.

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提问人：网友loujing 发布时间：2022-01-07

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第1题

听音频，回答题 Have you ever noticed that while it"s pretty easy to tell your dog is sick，

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Have you ever noticed that while it"s pretty easy to tell your dog is sick， it"s much harder to know how your cat or bird are feeling？ Welt， before you start asking your dog why it can"t be more 26 like animals half its size， it"s probably worth 27 each animal"s place in the food chain. You see， the lower down the food chain you are， the more important it is for you to hide any sign of illness. Obvious illness or pain28 as red flags for predators. You may as well wear a sign saying， "Easy meal， guys. Come and get me."

Now， even small dogs are 29 programmed to function like predators，which 30 considering they are close relatives of wolves. And birds——you can probably 31 why the only way you"d find out your bird is sick is when it dies.

The situation with cats，32 dogs and birds， is much more interesting. On the one hand， cats are predators， but on the other， they"re small enough to be prey.

So how can you tell if your smaller pets need 33 attention？ For one thing，trust your feelings. No one knows your pets like you do， so if you notice even very 34 changes in habits and behavior， you may want to have a vet look them over. For a cat， other signs of illness might be that it has stopped grooming， is losing weight，35more or less than usual， or missing the litter box.

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第2题

听音频，回答题 There is an effect that not only have we all witnessed， but have26. Haven"t

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There is an effect that not only have we all witnessed， but have26. Haven"t we all been on an elevator and noticed that just about everyone stops talking when they get on？ Why do we do that？ You can be having a 27 pleasant conversation with someone， and as soon as you get on an elevator， you just feel like you"d better shut up.

Then， as soon as the doors open， everyone28conversation. Primatologists， or people who study primate （灵长类动物） behavior， have a term for this. It"s called the "elevator effect，" though it doesn"t 29 only on elevators. It happens whenever a group of primates， like humans， is 30 a situation where escape is 31 impossible. It"s thought to be a kind of safety32: as long as nobody talks， nobody is going to risk getting in a fight when there"s no way to spread out. The elevator effect keeps a lid on potential problems before they start.

Even though they rarely if ever ride elevators， chimpanzees demonstrate the elevator effect as well. When chimps are temporarily crowded together into small areas， they will 33 their vocal communication， that is， nobody speaks， and avoid eye 34. The amount of scratching the chimps do， however， goes up. Since scratching is a sign of stress in chimps， we can imagine what they are feeling. It"s just like what we feel in a crowded elevator——everybody carefully35 the lighted numbers and no one saying a thing.

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第3题

听音频，回答题There are more than 2600 four-year universities in the United States， accordi

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There are more than 2600 four-year universities in the United States， according to the National Center for Education Statistics.But even with that26of choice， large numbers of high school students are applying to the same group of prestigious colleges.Today， any（27）is important for those hoping to be accepted by a prestigious school. Yale University， a member of the（28）group of universities known as the Ivy League， set a record this year， by accepting fewer than 9% of those who applied. Part of the problem is that there are more college-age students in the United States than ever——the population is growing.（29）rates are also lower because students are applying to more elite schools——（30）in the hopes of getting into at least one.

Students can now apply online instead of（31）pages of documents by hand. A few years ago， each student applied to three tofive schools（32）. "Today that number is much higher，" says college freshman Brian Kalish， who now leads campus tours for students. "Most kids apply to around five to seven colleges， but some of my friends went as high as 18 different colleges." These daysmany students begin preparing as much as three years before admission tim picking courses， getting（33）school activities andstudying for admissions tests. Educators say students should relax. They say a good edtication is（34）at many schools in the United States， which is（35）to have the finest higher education system. And they say the most important thing for students is to find a school where they feel comfortable.

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第4题

听音频：回答题Last year， researchers published new findings from the Women"s Health Initiat

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Last year， researchers published new findings from the Women"s Health Initiative， a long-term study of more than 160000midlife women. The data showed that multivitamin-takers are no（26）than those who don"t take the pills， at least when it comes to the big diseases——cancer， heart disease， and（27） "Even women with poor diets weren"t helped by taking amultivitamin，" says the study author Marian Neuhouser， PhD， in the cancer（28）program at the Fred Hutchinson CancerResearch Center， in Seattle. Vitamin（29）came into fashion in the early 1900s， when it was difficult or impossible for most people to get a wide variety of fresh fruits and vegetables. Back then， vitamin-deficiency diseases weren"t unheard-of: the bowed legs and（30）ribs caused by a severe shortage of vitamin D， or the skin problems and mental confusion caused by a lack of vitamin B， But these days， you"re（31）unlikely to be seriously deficient if you eat an average diet， if only because many packaged foods are vitamin-enriched. Sure， most of us could do with a couple more daily（32）of produce， but a multivitamin doesn"t do a good job at（33）those. "Multivitamins have maybe two dozen（34）but plans，s have hundreds of other useful compounds，"Neuhouser says. "If you just take a multivitamin， you"re missing lots of compounds that may be providing benefits. " There is onegroup that probably ought to keep taking a multivitamin: women of reproductive age. The supplement is insurance（35）pregnancy.

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第5题

听音频，回答题 For many years， food vendors in American cities have offered selling food fr

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For many years， food vendors in American cities have offered selling food from trucks. Hungry people can find more than just hot dogs in these26. Now looking for new clothing is becoming as easy and satisfying as exploring the tasty 27 of food trucks. The new movement is called the fashion truck. Once a month， just after sunset， trucks fill an outdoor parking lot in Los Angeles， California. Some trucks sell all kinds of food products， from sweet ice cream to 28 seafood. Others have clothing or29for sale. These vehicles are known as fashion trucks.

Many people have never seen a fashion truck before. Janelle Shepard is exploring everything inside the J. D. Luxe fashion truck. The back of the truck is a30. Clothing hangs on one side. Jewelry and purses are on the other side. The store is31 and looks well organized. There is also a very small room for 32 clothes. Another reason to use a truck is that you can take your business to the customers. But she also admits there are difficulties. The biggest challenge is 33 the weather while another issue is keeping the truck in good condition. When a vehicle 34.， the repairs can take days. Business stops during the repair work， Fashion trucks are giving Internet businesses some competition and they attract 35. Experts hope that the city of San Francisco can create laws to rule the growing industry.

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第6题

听音频，回答题For years the advice has been clear: Eating five portions a day of fruit and

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For years the advice has been clear: Eating five portions a day of fruit and vegetables is the key to a healthy life. But five mayno longer be enough. A study has found that to get（26）defense against heart disease， you need to eat at least eight dailyservings of fresh food. The government"s five-a-day advice has its（27）in World Health Organization guidelines to include 14ounces of vegetables in a daily diet. But there have been doubts over whether eating more than this level of fruit and vegetablesmeant even greater health（28）. Now the new study suggests every extra portion provides added protection.（29）， those inthe highest category——eating eight or more a day——have a 22 percent lower chance of dying from heart disease than those who（30）three portions， the UK average. A "portion"（31）just under three ounces， equal to a small banana， a medium appleor a small carrot. The findings come from an ongoing European（32）diet and health， looking at 300000 people in eight countries. Dr. Francesca Crowe of Oxford University is working on the project. She said that although ischemic （缺血性的） heart disease.

（IHD.——the most common（33）——was less likely in those who ate lots of vegetables， it could be explained by the probably healthier lifestyles.（34）these things， the study specifically showed a reduced risk of dying from II-[D of around four percent for each（35）portion of fruit and vegetables eaten above the lowest category， which was those who ate two or fewer portions.

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第7题

根据下面内容，回答题： Only one animal can walk 200 miles without stopping once to rest. It

根据下面内容，回答题：

Only one animal can walk 200 miles without stopping once to rest. It would take a person two days and two nights to walk this far， and only one man has ever done it without stopping. What amazing animal has such endurance？ The camel! The camel is well known for something else， too. It can cross an entire desert without a single drink of water. Its body is built in a special way to help it store water and food.

A person has just one stomach， but a camel has quite a few. Within each stomach are layers and layers of cells. These ceils are like tiny water balloons， storing liquids until the camel needs them.

When the camel drinks， the cells grow larger and larger. For a whole week， they can keep the animal"s thirst away by sending water to all parts of its body.

And did you ever wonder why the camel has a hump？ The hump is a storage place for fat.

Because it has this storage area， the camel does not need to eat very often. When the animal needs energy， the layers of fat serve as fuel to keep it going on the long， hot days in the burning sun.

The camel has one other gift that makes it well suited to arid regions. This gift is its amazing nose. A camel can smell a water hole from miles away!

When a camel moves it sways from side to side like a ship on a wavy ocean. Because of this swaying motion， the camel has been called the "Ship of the Desert. "

The camel‘s hump is a storage place for________. 查看材料

A.muscles

B.extra water

C.body sugars

D.fat

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第8题

点击按钮开始播放听力音频

$amp;Questions 1~5are based on the conversation you have just heard．;$br＞

根据所听到的内容回答题__________

A. The same to you.

B. Thank you very much.

C. You must like playing football.

D. In fact we didn't play very well.

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第9题

点击按钮开始播放听力音频Questions 1~5are based on the conversation you have just heard．根

点击按钮开始播放听力音频

Questions 1~5are based on the conversation you have just heard．

根据所听到的内容回答题__________

A. You are welcome.

B. Pleased to meet you, too.

C. So far so good.

D. The same to you.

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第10题

听第8段材料，回答10至12题。M: How did you like Egypt？W: Oh, perfect. It's one of the most in

听第8段材料，回答10至12题。

M: How did you like Egypt？

W: Oh, perfect. It's one of the most interesting places I've ever seen.

M: Where did you go？

W: Well, we spent most of the time in Cairo and Luxor.

M: What's there to see in Cairo？

W: Well, not all that much, in fact, but there is the museum and the pyramids, and that's really some- thing.

M: What's the city like？

W: It's very large, and the streets are always noisy and dirty.

M: I thought you liked it.

W: Well, I did in a way. It's very different, but I liked Luxor better. Luxor's a little town right on the banks of the Nile. It's very quiet and peaceful and much cleaner than Cairo. And actually I did more sightseeing there.

M: Did you buy anything？

W: Oh, sure. There are some excellent shops in Luxor with all sorts of interesting things. A lot better than Cairo, in fact, I bought a gold necklace. Want to see it？

M: Sure.

Which country did the woman visit？

[A] Egypt.

[B] Cairo.

[C] Cairo and Luxor.

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