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 lifestyle and this had led to new kinds of sicknesses．{#blank#}2{#/blank#} So they are called "diseases of civilization"．Many cancers and 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 main differences between life in ancient times and that of today.

    Stone Age people hunted wild animals for their meat, which had much less fat than domestic ones．They ate a lot of fresh wild vegetables and fruits．They did not have 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 more sugar．We eat twice as much fat but only one third as much protein and much less vitamin C.

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

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

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

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

 D．Ancient people also got lots of physical exercise.

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

 F．But today, we enjoy eating a lot of these.

 G．Stone Age people lived a simple life.

    Best Way to Save Money

    Although the best way to save money can vary from person to person, depending on age, family size and other characteristics, there are still some easy things that all shoppers can do to keep more money in their bank accounts.

    Avoid impulse (冲动的) purchases.

    When you shop, a best way to save money is to have a plan in mind to help you avoid impulse purchases.  {#blank#}1{#/blank#} And you only carry the exact amount of cash that you will need for your planned purchase. Some shoppers agree to discuss any purchases over a certain dollar amount with their spouses (配偶) first.

    {#blank#}2{#/blank#}

    Sometimes the best way to save money in the long term is to spend a little more money right now.  {#blank#}3{#/blank#} A high-quality pair of shoes will last longer than a bargain pair and prevent foot pain. Leaner (瘦的) cuts of meat and organic produce provide health benefits for your family.

    Buy secondhand.

    Check classified ads, thrift stores and garage sales for used clothing, toys, furniture, and much more available at a part of their original cost.{#blank#}4{#/blank#} And there members offer unwanted items for free to anyone willing to pick them up.

    Borrow instead of buy.

    If you're only going to use something once, try to borrow it instead of spending your money on it. Borrow a tool from your neighbor.{#blank#}5{#/blank#} Check out the resources at your local library. You'll also be reducing disorder in your home.

A. Make things by yourself .

B. Exchange books with a friend.

C. Know when to pay for quality.

D. Refuse to buy things you can't use.

E. For instance, you might leave your credit cards at home.

F. A good piece of furniture can stay in the family for decades.

G. For the most secondhand savings, check out groups like Freecycle.

    Screen Time: How Much Is Too Much?

    Many children spend a lot of time watching or playing with electronic media—from televisions to video games, computers and other devices. {#blank#}1{#/blank#} Perhaps parents now should ease up on their concerns about screen time, at least for older boys and girls.

    Until last year, the American Academy of Pediatrics (AAP) suggested that children and teenagers have no more than two hours of screen time a day. It also suggests that parents balance a child's screen time with other activities.

    {#blank#}2{#/blank#} Christopher Ferguson, who teaches psychology at Stetson University in Florida, notes a lack of evidence supporting reports that too many hours spent playing video games or watching TV is truly harmful.

    Ferguson seems interested in one idea: the link between video games and violent or risky behavior. When he saw results from a recent British survey on screen time, he wanted to know more. The British study found a small negative effect—about a one percent increase—in aggression and depression among children who had six or more hours of screen time a day. {#blank#}3{#/blank#} So, Ferguson and his team examined answers from a survey on risky behaviors. The study involved about 6,000 boys and girls in Florida, whose average age was 16.

    Data from this survey found that American children are also fairly resistant to the negative effects of electronic media. Among those who used screens up to six hours a day, the survey found: a 0.5 percent increase in criminal behavior; a 1.7 percent increase in signs of depression; and a 1.2 percent negative effect on school grades. {#blank#}4{#/blank#} To further argue his point that screen time is not harmful, Ferguson adds that children should become familiar with screen technology. Electronic devices, he says, are a part of our everyday lives.

A. Some negative experiences on social media can and do affect some children.

B. However, some experts question claims that too much screen time is harmful.

C. He wanted to see if there was a similar effect among young people in the United States.

D. So, it is natural that parents should wonder about all the time children spend looking at a screen.

E. The researchers found no increase in risky sex or driving behaviors, use of illegal substances or eating disorders.

F. The researchers suggested that for those children, technology use might get in the way of taking part in other important activities.

    Many people think of guys as being carefree when it comes to their appearance. But in fact, a lot of guys spend plenty of time in front of the mirror. They care just as much as girls do about their body image.

    Body image is a person's opinions and feelings about his or her own body and physical appearance. {#blank#}1{#/blank#} You appreciate your body for its capabilities and accept its imperfections.

    {#blank#}2{#/blank#} Here are some ideas.

    Recognize your strengths.

    Different body types are good for different things. What does your body do well? Maybe your speed, strength, or coordination (协调) makes you better than others at a certain sport. That may be basketball, table tennis, mountain biking, dancing, or even running. Or perhaps you have non-sports skills, like drawing, painting, singing, playing a musical instrument, writing, or acting, {#blank#}3{#/blank#}

    Exercise regularly.

    Exercise can help you look well and feel good about yourself Good physiques (体形) don't just happen. {#blank#}4{#/blank#} A healthy habit can be as simple as exercising 20 minutes to 1 hour three days a week Working out can also lift your spirits.

    Respect your body!

    Practicing good habits—showering regularly; taking care of your teeth, hair, and skin; wearing clean clothes, and so on can help you build a positive body image.

    {#blank#}5{#/blank#}

    Your body is just one part of who you are. Your talent for comedy a quick wit (智慧), and all the other things make you unique. So try not to let small imperfections take over.

    With the development of technology and economy, social media is becoming one of the fastest-growing industries in today's world. A study conducted by the US Pew Research Centre showed that 92 percent of teenagers go online daily. {#blank#}1{#/blank#}

    Changing relationships.

    High school student Elly Cooper from Illinois said social media often reduces face-to-face communication. "It makes face-to-face relationships harder because people's attention is given to their phones instead of their friends," Cooper said.

    {#blank#}2{#/blank#} Beth Kaplan from Illinois meets her long-distance friend through social media. He currently lives in Scotland, but they're still able to frequently communicate with each other. "I can feel close to someone that I'm talking to via FaceTime," Kaplan said.

    Wanting to be "liked".

    {#blank#}3{#/blank#} The 19-year-old Essena O'Neill announced on the social networking service Instagram that she was quitting social media because it made her unable to stop thinking about appearing perfect online. {#blank#}4{#/blank#} Teenagers who get harmful comments can't help but feel hurt.

    {#blank#}5{#/blank#}

    However, Armin Korsos, a student from Illinois, takes advantage of the comments(评论) he receives over social media to improve his videos on the social networking site YouTube. "Social media can help people show themselves and their talents to the world in a way that has never been possible before," Korsos said.

A. Opening new doors.

B. Teenagers' attitude toward social media.

C. Unpleasant comments can also do great damage to a teenager's self-respect.

D. The wide spread of social media has changed nearly all parts of teenagers' lives.

E. Yet, the social media is beneficial to show people's talents.

F. The rise of social media has changed the way teenagers see themselves.

G. Yet, some people believe social media has made it easier to start relationships with anyone from anywhere.

    I'm a survivor of atomic bombing (原子弹轰炸)of Nagasaki, Japan. I was born on December 25, 1944, so when the bombs fell on Nagasaki and Hiroshima, I was only nine months old. My family were not even in the city of Nagasaki. We were outside. {#blank#}1{#/blank#}

    There are three ways that atomic bombs can kill you. One is the blast (冲击波). That knocks down all the buildings nearby. The second is the fireball. {#blank#}2{#/blank#}And those who were touched by the fireball disappeared immediately. And the third way is the radiation (辐射).

    {#blank#}3{#/blank#}

    I remember both my mother and my sister were sick in bed. And when I was six, they died.

    When my sister died, I heard her doctor tell my father that I wouldn't live to see my tenth birthday. So I knew that I was not going to live long. {#blank#}4{#/blank#}Whenever I get a simple cold, I thought this might be the end of my life.

    I also felt that it was wrong for me to stay alive. Why did my sister and my mother, who were wonderful people, had to die? And yet L, who am not worthy, am still alive? {#blank#}5{#/blank#}It kills everything on its way. It kills slowly. and painfully.

    If the United States is attacked with radioactive weapons, millions of people will die. If North

    Korea is attacked, Korea, Japan, part of China and even Russia will be affected I want all nations to come together and start finding a way of getting rid of nuclear weapons altogether.

A. But I always took good care of myself.

B. There was a huge fireball in both cities.

C. Therefore, I was always worried about my health.

D. The radioactive dust was what started killing our family.

E. It always does much more harm than good to human being.

F. This feeling is the kind of weapon that shouldn't be allowed on the earth

G. However, radiation from the bombing went far beyond the city limits and harmed us.