Some inventions are so useful, but seem so simple, that we wonder why no one thought of them long ago. Post-it Notes, the pieces of paper that you can stick almost anywhere and then remove without leaving any sign that they are there, are an example of such an invention.

    Post-it Notes were invented about twenty years ago by Art Fry, a scientist at 3M Corporation. The idea for the product came from an upsetting experience he often had while singing in his church choir. Fry used pieces of paper as bookmarks to mark the places in his book of songs, but these bookmarks were always falling out. He knew he needed a bookmark that would stay where he put it, but that he could remove without damaging the pages.

    Around that time, Fry heard about a new adhesive(粘合剂) that a colleague, Dr. Spence Silver had created. This adhesive was special because it was sticky, but not too sticky. It was strong enough to hold papers together, but weak enough not to tear the paper when it was removed. Fry saw that the new adhesive could help solve his bookmark problem. One morning, Fry put some of the adhesive on the edge of a piece of paper. Just as he hoped, it made a perfect bookmark.

    A short time later, Fry realized that his new invention had even more uses than being a great bookmark. He came to this realization when he wrote a note on one of his new “bookmarks” and attached it to a report he was going to give to a colleague. Soon, co-workers were asking Fry for more sample of his invention so that they could use the new type of notes themselves.

    Fry and some other people at 3M believed so much in the new product that they persuaded the company to give away thousands of the sticky pieces of paper for trial use. When some salespeople at 3M went to offices and showed workers just how helpful the new type of notes could be, they immediately received many orders. As more and more people discovered how useful Post-it Notes could be, the product took off.

    About twenty of us had been fortunate enough to receive invitations to a film-studio(影棚) to take part in a crowd-scene. Although our "act" would last only for a short time, we could see quite a number of interesting things.

    We all stood at the far end of the studio as workmen prepared the scene, setting up trees at the edge of a winding path. Very soon, bright lights were turned on and the big movie-camera was wheeled into position. The director shouted something to the camera operator and then went to speak to the two famous actors nearby. Since it was hot in the studio, it came as a surprise to us to see one of the actors put on a heavy overcoat and start walking along the path. A big fan began blowing tiny white feathers down on him, and soon the trees were covered in "snow". Two more fans were turned on, and a "strong wind" blew through the trees. The picture looked so real (that it made us feel cold).

    The next scene was a complete contrast (对比). The way it was filmed was quite unusual. Pictures taken on an island in the Pacific were shown on a glass screen(幕).An actor and actress stood in front of the scene so that they looked as if they were at the water's edge on an island. By a simple trick like this, palm trees, sandy beaches, and blue, clear skies had been brought into the studio!

    Since it was our turn next, we were left wondering what scene would be prepared for us. For a full three minutes in our lives we would be experiencing the excitement of being film "stars"!

The Greatest show on Earth

    The Olympic Games are the greatest festival of sports in the world. Every four years, many countries send their best sportsmen to compete for the highest honour in sport. As many as 6, 000 people take part in over 20 sports. For the winners, there are gold medals and glory. But there is honour, too, for all who compete, win or lose. That is in the spirit of the Olympics—to take part is what matters.

    The Olympic Games always start in a bright colour and action. The teams of all the nations parade in the opening ceremony and march round the track. The custom is for the Greek team to march in first, for it was in Greece that the Olympics began. The team of the country where the Games are being held—the host country—marches in last.

    The runner with the Olympic torch (火炬) then enters the stadium and lights the flame. A sportsman from the host country takes the Olympic oath (宣誓) on behalf of all the competitors. The judges and officials also take an oath. After the sportsmen march out of the stadium, the host country puts on a wonderful display.

    The competitions begin the next day. There are usually more than twenty sports in the Games. The rule is that there must be at least fifteen. The main events are in track and field, but there are a few days before these sports start. Each day the competitors take part in different sports, like riding, shooting, swimming, and cross-country running. Points are gained for each event. Medals are awarded for the individual winners and for national teams.

    More and more women are taking part in the Games. They first competed in 1900, in tennis and golf. Women's swimming events were introduced in 1912. But it was not until 1928 that there were any track and field events for women. Now they compete in all but half a dozen of the sports. In horse riding, shooting, and boat racing, they may compete in the same events as men.

    When men and women take personality tests, some of the old Mars-Venus stereotypes(定式)keep reappearing. On average, women are more cooperative, kind, cautious and emotionally enthusiastic. Men tend to be more competitive, confident, rude and emotionally flat. Clear differences appear in early childhood and never disappear.

    What's not clear is the origin of these differences. Evolutionary psychologists think that these are natural features from ancient hunters and gatherers. Another school of psychologists argues that both sexes' personalities have been shaped by traditional social roles, and that personality differences will shrink as women spend less time taking care of children and more time in jobs outside the home.

    To test these hypotheses(假设), a series of research teams have repeatedly analyzed personality tests taken by men and women in more than 60 countries around the world. For evolutionary psychologists, the bad news is that the size of the gender gap in personality varies among cultures. For social-role psychologists, the bad news is that the change is going in the wrong direction. It looks as if personality differences between men and women are smaller in traditional cultures like India's or Zimbabwe's than in the Netherlands or the United States. A husband and a stay-at-home wife in a patriarchal(男权的)Botswanan clan(部族)seem to be more alike than a working couple in Denmark or France. The more Venus and Mars have equal rights and similar jobs, the more their personalities seem to separate.

    These findings are so unbelievable that some researchers have argued they must be due to cross-cultural problems with the personality tests. But according to new data from 40.000 men and women on six continents, David P. Schmitt and his colleagues conclude that the trends are real. Dr. Schmitt, a psychologist at Bradley University in Illinois and the director of the International Sexuality Description Project, suggests that as wealthy modern societies level(使平等)the barriers between women and men, some ancient internal differences are being developed.

    The biggest changes recorded by the researchers involve the personalities of men, not women.

    Men in traditional agricultural societies and poorer countries seem more cautious and anxious, less confident and less competitive than men in the most progressive and rich countries of Europe and North America.

    To explain these differences, Dr. Schmitt and his partners from Austria and Estonia point to the hardships of life in poorer countries. They note that in some other species, environmental stress tends to extremely affect the larger sex. And, they say, there are examples of stress decreasing biological sex differences in humans.

    Anyone wanting to throw away their mobile phone can do it in style（时尚地）and may even win a medal－at the Mobile Phone Throwing World Championship.

    Originally a local event in a small town close to the Russian border, the fifteenth annual contest drew many throwers from as far as Canada, Russia and Belgium.

    Founder Christine Lund describes the event as a good source of light exercise with an environmentally-friendly activity. "There are a lot of mobile phones on the second-hand market, and we are recycling them（before they become poisonous waste）," she said.

    The inventive Finns had already given the world the Sauna World Championships and the Wife Carrying Competition before coming up with a new way to make mobile phones even more mobile.

    This year's gold medal went to Finland's Lassi Etelatalo, who threw a waste Nokia unit a forceful 89.00 meters. "I prepared by javelin（标枪）throwing, I haven't really practiced throwing mobile phones,"Etelatalo said.

    Lund says competitors all have their favorite throwing brand. "People choose by size, by color or by how it fits in the hand……Some believe a heavy model will ensure a long throw, some want a light one."

Opening presents carefully selected by our parents is our family tradition on Christmas morning, which always pushes the festive atmosphere to the climax. However, this year's Christmas seemed not as happy as usual.

It was Christmas Eve when my sister and I decided to open our presents before our mom got home from work. Though worried about ruining my mom's original plan, we still wanted to sneak a peek (偷看) at the gifts in advance, driven by a strong impulse of curiosity. Since my sister was older, and that put her in charge, she opened the first gift while I was ordered to stand guard at the big picture window in our front room. I was to report any suspicious activity or person, namely our mother, who can easily capture the details of life.

I was so excited that I could barely stand still. I also couldn't keep my eyes on the window very long. My head moved from the window to my sister and back to the window again. I felt like I was watching a Ping-Pong match.

"All right!" my sister shouted. She pulled out a jewelry box. "You know what that means, don't you?"

I jumped up and down. "Yeah, it's my turn!"

"No," she said. "It means that there must be some jewelry under here." I watched my sister rummaging (翻寻) through the presents under the tree, trying to find one she thought was small enough to be a necklace or earrings.

"Hey, that's not fair!" I complained, stomping my foot.

"Are you watching for Mom?" is all that she said. I couldn't do anything except stand guard as she opened present after present. Finally, when my sister's curiosity was satisfied and she had finished wrapping her last present back up, we traded places.

My heart hammered so hard that it felt like my chest was moving in and out. My sister reminded me to be careful so I wouldn't tear the paper, and to wrap the present back up the same way that I had found it.

After unwrapping a few presents, I found it faster to open one end of a present and peek inside. "Headphones! How can my mom know what I want! Without any hesitation, I pulled the headphones out of the box.

注意：1.续写词数应为 150 个左右；2.请按如下格式在答题卡的相应位置作答。

Paragraph l: 

I was about to put them on when my sister shouted, "Quick! Mom's coming!"

Paragraph 2: 

Christmas morning finally approached, and we were ready to open our presents again!_