Both men and women are livinglonger these days in industrialized countries.{#blank#}1{#/blank#}Ingeneral, they can expect to live six or seven years more than men. One reasonfor this is biological.

      One important biological factor thathelps women live longer is the difference in hormones between men and women.{#blank#}2{#/blank#}Between the ages of about 12 and 50,women produce hormones that are involved in fertility(生育能力). These hormones also have a positive effect on the heartand blood flow. In fact, women are less likely to have high blood pressure orto die from heart attacks.

       {#blank#}3{#/blank#}Theyhelp the body defend itself against some kinds of infections. This means thatwomen generally ger sick less often and less seriously than men. The commoncold is a good example: women, on average, get fewer colds than men.{#blank#}4{#/blank#} Scientists are still not exactly sure howinfluence aging, but they believe that they do. Some think that a woman's bodycells have a tendency(向) to age more slowly than a man's. Others think that a man's body cells have a tendency to age more quickly.{#blank#}5{#/blank#}

A．However,women, on average, live longer.

B .The biological factorplays an important part.

C. Women are also helped bytheir female genes.

D. The female hormones alsoprotect the body in another way.

E. Recent research seems tosupport both of these possibilities.

F. Therefore, women are morehealthy than men and can live a better life.

G. Hormones are chemicalswhich are produced by the body to control carious body functions.

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    Is there link between humans and climate change or not? This question was first studied in the early 1900s. Since then, many scientists have thought that our actions do make a difference. In 1997, the Kyoto Protocol explained our role in the Earth's changing atmosphere and set international limits for gas emissions(排放) from 2008 to 2012. Some countries have decided to continue these reductions until 2020. More recently, the Paris Agreement, stuck by nearly 200 countries, also aims to limit global warming. But just now how much warmer it will get depends on how deeply countries cut carbon emissions.

    More than 30,000 people went to the White House on Monday for the 136th Easter Egg Roll (复活节滚彩蛋). President Barack Obama and First Lady Michelle Obama held the event by inviting thousands of kids to color and look for eggs. The theme(主题) of the day was “Hop Into Healthy, Swing Into Shape.” It was part of the First Lady's “Let's Move!” program to reduce obesity rates (肥胖率) among American kids. Mrs. Obama spoke to young reporters about her goal(目标) to get children to eat right and keep moving.

    “We are working to make sure that kids born today grow up healthy, learn how to have balanced meals, and get more physical activity into their lives,” she said.

    Mrs. Obama said she wants children across the nation to understand that "exercise isn't just hard work, it's play. If you're running around with your dog, you're getting exercise. If you walk up the stairs, that's exercise, But if you're sitting in front of the TV or on a computer game, you're not exercising.”

    The First Lady said that for kids who have balanced meals most of the time, having a special snack, like chocolate, will not hurt." And if you are active, you can splurge (挥霍) a little more," she said. Mrs. Obama's favorite "splurge food" is French fries. But she balances her splurging by exercising almost every day. She loves to play tennis and she practices yoga.

    “A lot of kids look up to(敬仰) athletes, and I think it's important for athletes to share their good habits,” Mrs. Obama said. "Kids aren't just going to wake up and be LeBron James. He's practicing and eating right and working out and training. Our athletes can be really good messengers to kids who look up to them--they can say to kids, 'If you really want to be like me, then you really do need to eat your vegetables.'”

    Sharon, Aged 22

    The most important thing to keep in mind when going into high school is to be yourself. Besides, I don't know what your middle school was like, but high school teachers will not care about things such as how much homework you already have in one night. It's best to just learn to deal with things and manage your time wisely so you can achieve everything you need to.

    Frank, Aged 21

    I think almost every kid feels both nervous and excited before their first day. You will probably love it. I know I did. You should join some sports or activities that will make your high school experience more enjoyable. Good luck!

    Eddie, Aged 20

    When I started high school I was really nervous too, especially since I had been homeschooled all through middle school and didn't really know anyone. I suppose the best advice would be to just relax. The first couple of days can be a little bit hard, but things will become easier before you know it.

    David, Aged 19

    I'm not going to lie. The first day is kind of frightening(令人恐惧的). But you'll get used to it. Don't be afraid of anyone; upperclassmen will pick on you more if you let them know you're afraid. Just take it easy. Making some friends and staying with them will greatly help you get used to high school quickly. After the first week it's really not bad at all. Don't worry.

    On Wednesday, January 13th, I performed on stage for the first time. As someone who takes part in so many activities, it's extremely difficult to find the time to be a part of any production. For me, it was a once-in-a-lifetime opportunity to try acting through the Senior Play Project.

    Auditions (试镜)came first. They weren't particularly difficult, more to see who may be a better fit tor certain roles. We were told our roles in the various plays, and started to work immediately.

    I was unsure of how I was as an actor, and I had to learn a lot fast: actions, my place in the story, my reactions, and countless other small details... As I began to improve as an actor, I was able to understand my characters better.

    My first character is a man named Roger who is a senior advisor to a presidential candidate in a play called "The Spot." He's a short-tempered guy who says what he wants and takes what he wants to assist his candidate in today's tough political races. He's on the set of The Spot, an advertisement for the candidate, to make sure everything runs smoothly and that any problems are dealt with quickly and efficiently.

    While I had really interesting characters, and the plays were funny and such a great experience to act in, I really love the Senior Play Project for the people. I worked with 12 other seniors who not only loved what they were doing, but offered help and advice throughout my entire learning process.

    Between the lights, sounds, costume and makeup, and plenty more, theatre is a team sport just like basketball or baseball. There are no small parts; there is no one who isn't needed. I've learned to appreciate live theatre, and the effort that every person in the show, both onstage and offstage, puts into it.

    Tim Berners-Lee is not the most famous inventor in the world. However, his invention has changed our lives.

    He was born in London, England in 1955.When he was a small boy, Tim was interested in playing with electrical things. He studied science at Oxford University. He made his first computer from an old television at the age of 21.

    Tim started working on early computers. At that time, they were much bigger than now. He worked in England then Switzerland. Tim was really interested in two things, computers and how the brain works. How could the brain connect so many facts so quickly? He had to work with people all over the world. They shared information about computers. It was hard to manage all the information. He answered the same questions again and again. It took a lot of time. It was even difficult for computers in the same office in Switzerland to share information. Tim also forgot things easily. Could a computer work like a brain? Could it "talk" to other computers?

    There was an Internet already but it was difficult to use. In 1989, Tim Berners-Lee invented the World Wide Web (WWW) all by himself. This had a special language that helped computers talk to each other on the Internet. When people wanted to share information with others, they used the World Wide Web. The Internet grew quickly after that.

    Tim Berners-Lee doesn't think he did anything special. He says that all of the ideas about the Internet were already there. All he did was to put them together. He says that many other people worked together to make the Internet what it is today.

    Most inventors want to become rich. But Tim gave away the World Wide Web for nothing. He now works in America. He helps people share technology and wants the Internet to be free for everyone to use. Maybe he is the most important but least famous inventor in the world today!