What will man be like in the future –in 5000 or even 50, 000 years from now? We can only make guesses, of course, but we can be sure that he will be different from what he is today, for man is slowly changing all the time.
　　Let us take an obvious example. Man, even five hundred years ago, was shorter than he is today. Now, on average, men are about three inches taller. Five hundred years is a relatively short period of time, so we may assume that man will continue to grow taller. Again, in the modern world we use our brains a great deal. Even so, we still make use of only about 20% of the brain's capacity. As time goes on, however, we shall have to sue our brains more and more, and eventually we shall need larger ones! This is likely to bring about a physical change too: the head, in particular the forehead, will grow larger.
　　Nowadays our eyes are in constant uses. In fact, we use them so much that very often they become weaker and we have to wear glasses. But over a very long period of time it is likely that man's eyes will grow stronger.
　　On the other hand, we tend to make less use of our arms and legs. These, as a result, are likely to grow weaker. At the same time, however, our fingers will grow more sensitive because they are used a great deal in modern life.
　　But what about hair? This will probably disappear from the body altogether in course of time because it does not serve a useful purpose any longer. In the future, then, both sexes are likely to be bald.
　　Perhaps all this gives the impression that future man will not serve a very attractive creature to look at! This may well be true. All the same, in spite of all these changes, future man will still have a lot in common with us. He will still be a human being with thoughts and emotions similar to our own.

3. What will be true about a human being in the future?

　　When someone has deeply hurt you, it can be extremely difficult to let go of your anger. But forgiveness is possible and it can be surprisingly helpful to your physical and mental health. Indeed, research has shown that people who forgive report more energy, better appetite（胃口）and better sleep patterns. "People who forgive show less anger and more hopefulness," says Dr. Frederic Luskin, who wrote the book Forgive for Good. "So it can help save on the wear and tear on our system and allow people to feel more energetic."
　　 So when someone has hurt you, calm yourself first. Take a couple of breaths and think of something that gives you pleasure: a beautiful scene in nature, someone you love. Don't wait for an apology. "Many times the person who hurt you may never think of apologizing," says Dr. Luskin. "They may have wanted to hurt you or they just don't see things the same way. So if you wait for people to apologize, you could be waiting a very long time." Keep in mind that forgiveness does not necessarily mean accepting the action of the person who upset you. Mentally going over your hurt gives power to the person who brought you pain. Instead, learn to look for the love, beauty and kindness around you. Finally, try to see things from the other person's perspective（视角）.You may realize that he or she was acting out of ignorance （无知）, fear－even love. To gain perspective, you may want to write a letter to yourself from that person's point of view.

7. According to the writer, what is the right way to calm down after being hurt?

　　A Japanese toy maker declares that they have developed a gadget（小器具）that translates dog barks into human language and plans to begin selling the gadget – under the name of Bowlingual – in U.S. pet stores and gift shops this summer.
　　Tokyo-based Takara Co. Ltd says about 300,000 of the dog translator gadgets have been sold since it has been on sale in Japan late last year. It is forecasting far bigger sales once an English language translation for dogs comes to America in August. The United States is home to about 67 million dogs, more than six times the number in Japan.
　　"We know that the Americans love their dogs so much, so we don't think they will mind spending ＄120 on this product," the Takara marketing manager said during an interview at a recent pet products conference in Atlanta.
　　Regarded as one of the coolest inventions of 2002 by Time magazine, Bowlingual is made up of a 3-inch long wireless microphone that is fastened to a dog collar and sends out sounds to a small console（控制台） that is connected to a database（数据库）. The console divides each bark into six emotional types – happiness, sadness, disappointment, anger, threat and desire – and shows common phrases, such as "You're ticking me off," （你实在让我太恼火了）that fit the dog's emotional state.
　　Takara says it has spent millions of dollars developing the gadget in cooperation with famous sound experts and animal behaviorists.
　　 One thing that does appear certain is that the markets for animal translation products will likely remain a dog's world since Takara has no plans to develop a similar gadget for cats. "They are too unpredictable（反复无常）," the marketing manager said.

　　In the February of 1892, Sloan gathered his work together, and walked into the offices of a Philadelphia newspaper called the Inquirer to ask for a job. Newspapers employed many artists to draw pictures of news events as they happened, and to deal with other types of art work, Sloan was hired for the news department, but he soon asked to be sent to the art department. For three years he drew portraits and illustrations（插图）for the women's page and the Sunday paper.
　　It was in the offices of the Inquirer that Sloan first met several fellow artists who were later to be important in his life. His old friend William Glackens was already working for the newspaper when Sloan was hired. Soon after, Everett Shinn joined them, and the three young men would go out on Sunday painting trips. Sloan had no desire to be a painter; he only wanted to become a fine illustrator.
　　To learn how to draw the human figure better, Sloan went to night classes at the Philadelphia Academy of Art. No models were used, and no instruction in painting was given. One night, Sloan drew one of the students. When the teacher told him to stop, he stood up and walked out, never to return. With forty other artists, he helped organize a club where twice a week the members drew from live models.
　　In 1895, Sloan left the Inquirer to work for the Press, a morning newspaper. The Press art department was under the direction of Edward Davis, father of the now-famous artist Stuart Davis. Sloan's fellow students on the paper-George Luks, Everett Shinn, and Glackens-were all young men eager to paint. Sloan soon became a member of the group. The change of jobs proved a good thing in all ways. The Press gave Sloan and increase in salary, more interesting work, greater space for his drawings, and more free time. He was soon the most valuable artist on the paper.

　　Mark Twain left school when he was twelve. He had little school education. In spite of this, he became the most famous writer of his time. He made millions of dollars by writing. His real name was Samuel Langhorne Clemens, but he is better known all over the world as Mark Twain, his penname.
　　Mark Twain was born in 1835 and he was not a healthy baby. In fact, he was not expected to live through the first winter. But with his mother's care, he managed to survive. As a boy, he caused much trouble for his parents. He used to play jokes on all his friends and neighbors. He didn't like to go to school, and he often ran away from home. He always went in the direction of the nearby Mississippi（密西西比河）. He was nearly drowned nine times.
　　After his father's death, Mark Twain began to work for a printer, who only provided him with food and clothing. Then, he worked as a printer, a river-boat pilot（领航员）and later joined the army. But shortly after that he became a miner. During this period, he started to write short stories. Afterwards he became a full time writer.
　　In 1870, Mark Twain got married. In the years that followed he wrote many books including Tom Sawyer in 1876, and Huckleberry Finn in 1884, which made him famous, and brought him great fortune.
　　Unfortunately, Mark Twain got into debts in bad investments（投资）and he had to write large numbers of stories to pay these debts. In 1904, his wife died, and then three of his children passed away.
　　 At the age of 70, his hair was completely white. He bought many white suits and neckties（领带）. He wore nothing but white from head to foot until his death on April 21, 1910.