Recently some American scientists have given a useful piece of advice to people in industrialized nations．They say people should eat more of the same kind of food eaten by humans living more than 10,000 years ago． {#blank#}1{#/blank#}

     The scientists say that the human life has changed greatly．Our bodies have not been able to deal with these changes in life style and this had led to new kinds of sicknesses． {#blank#}2{#/blank#} So they are called "diseases of civilization"．Many cancersand diseases of the blood system are examples of such diseases.

      Scientists noted that people in both the Old Stone Age and the New Stone Age enjoyed very little alcohol or tobacco, probably none． {#blank#}3{#/blank#}  However, a change in food is one of the maindifferences between life in ancient times and that of today.

      Stone Age people hunted wild animals for their meat, which hadmuch less fat than domestic ones．They ate a lotof fresh wild vegetables and fruits．They did nothave milk or any other dairy products, and they made very little use of grains． {#blank#}4{#/blank#}  We eat six times more salt than our ancestors．We eat moresugar．We eat twice as much fat but only one third as much protein andmuch less vitamin C.

{#blank#}5{#/blank#} But scientists say that we would be much healthier if weeat much the same way the ancient people did, cutting the amount of fatty,salty and sweet food.

A．Stone Agepeople lived a simple life.

B．But today, weenjoy eating a lot of these.

C．In that case,they would live much healthier.

D．Ancient people also got lots of physical exercise.

E．These new sicknesses were not known in ancient times.

F．People today probably don't want to live like our ancestors.

G．Modern people used to suffer from "diseases of civilization".

    Hannah Levine decided she wanted to give hugs to all of the children and families in need at local hospitals.

    Because she couldn't give them hugs one by one, Levine, then a sixth-grader, decided she would use her talents(才能) to do the next best thing. She began to knit(编织) hats, scarves, and blankets for families staying at the Ronald McDonald House at Stanford. Her creations also went to Bundle of Joy, a program that provides newborn baby items for families in need, and to Knitting Pals by the Bay, a local organization that provides hand-knitted caps to cancer patients.

    "I love to knit, and I thought it would be a great idea to make all these handmade items for kids and adults who need them. It would be like a hug for them." Levine explained.

    Levine started the project about a year ago. "I think it's just really fun to do, and it keeps me busy." said Levine, now 13.

    Once she got started, Levine realized that her project could be much bigger than the goods she was able to produce with just her own hands. So she sent emails to her school and communities, asking for knitted donations(捐赠物) to the project she named "Hannah's Warm Hugs". She also posted advertisements at Starbucks and other locations in her area. The warm goods began to pour in.

    "It was amazing; more strangers than people she knew started dropping donations at our door." said Levine's mother, Laura Levine. "We ended up with this huge box of items she was donating."

    The knitted items numbered in the hundreds. Levine made her first round of donations around Hanukkah (an eight-day Jewish holiday in November or December) and later received thank-you letters from the organizations. Levine is still knitting, and she said the project will continue.

    "It has turned into a bigger thing than she had thought." her mom said. "It made her feel pretty good; it made us feel pretty good.”

    Scientists are trying to save Puerto Rico's endangered Amazon parrots after Hurricane Maria destroyed the birds' habitats and food sources(来源).

    El Yunque is a large national forest on the eastern part of Puerto Rico. Just two of the 56 wild parrots that once lived there survived Maria, the Category-4 storm that struck Puerto Rico in September 2017. Scientists report other forests have seen great drops in parrot populations as well.

    In the 1800s, there were more than a million of the bright green parrots living in the wild in Puerto Rico. By the 1970s, the number was down to just 13 birds after years of forest clearing.

    A special program was started in 1972 to help increase the parrot population, which led to the creation of three breeding(繁殖) centers. Just weeks before Hurricane Maria hit, scientists counted 56 wild parrots at El Yunque. That was the highest number in the program's history. Scientists say that even though several parrots have been born in captivity(笼养) and in the wild since Maria, the species is still in danger.

The Puerto Rican Amazon is the island's only remaining native parrot. More than 460 of the birds are kept inside the breeding centers at El Yunque and the Rio Abajo forest. Scientists have not released(释放) any of the birds since Hurricane Maria. A third breeding center, in a forest in the western area of Maricao, has not been in operation since the storm.

    Scientists are considering whether to catch some of the remaining wild parrots and put them in the same cage as the birds that are set to be released. This way, the captive birds can learn from the wild birds how to survive in the forests. Another consideration is to release some captive parrots in Maricao, which was not as heavily damaged by Maria.

Adult Education Courses

The brain-training app trains people to tap on images of healthy foods but to stop when they see unhealthy snacks, creating a link between these foods and stops. The new study, by the universities of Exeter and Helsinki, found that playing the game about once a day for a month led to an average one-point reduction of junk food consumption.

Generally, people who used the app more also reported great changes in their food intake. One app user wrote, "Really useful. I used to eat junk food two to four times a week and I have reduced this to once a week after using the app regularly for a month. My desire for junk food has been reduced greatly and I no longer eat in the evening mindlessly."

The study used the app's usage data, and the app regularly asked questions about how often users eat certain food, along with other information such as their age and weight. The findings suggested that using the app regularly was linked with big changes in eating habits.

The app is free and it only takes about four minutes per day, so it's something people can do not just at home but at work and elsewhere. "From our results it seems important that you do the training at regular times and don't just stop. Therefore, keep it interesting, so you won't get bored with it. Personalize the app as much as possible and pick the food that you find really hard to resist," said Natalia Lawrence, a professor of the University of Exeter.

The researchers stressed that their findings should be further proved, because there was no comparison group and other factors____(such as the possibility that people who did more training were also more motivated to lose weight) could play a part in the results.

"Tear them apart！""Kill the fool！""Murder the referee (裁判)！"
    These are common remarks at various sporting events.Although they may sound innocent, they influence behavior in such a way as to lead to real bloodshed.Essays have been written about the way words affect us.It has been shown that words having certain connotations (含义) may cause us to react in ways quite foreign to our usual behavior.Perhaps the time has come to remove it from sports words.
    The dictionary meaning of the word "opponent" is "enemy".Thus，when a player meets an opponent，he may tend to treat that opponent as an enemy.At such times，winning is the only goal, and every action, no matter how violent or rude，may be considered reasonable.I recall an incident in a handball game when a referee refused a player's request for a time out for a glove change because he did not consider them wet enough.The player rubbed his gloves across his wet T-shirt and then shouted，"Are they wet enough now？"I have also witnessed a player reacting to his opponent's illegal blocking by hitting him with the ball as hard as he could.Off the court，they are good friends.It certainly gives proof of a court attitude which differs from normal behavior.
    Therefore，I believe it is time we promoted the game to the level where it belongs by setting an example to the rest of the sporting world.Replacing the word "opponent" with "associate" could be an ideal way to start.The dictionary meaning of the word "associate" is "friend"；"companion"．Reflect a moment!You may soon see and possibly feel the difference in your reaction to the word "associate" rather than "opponent"．