Science and Technology in Modern LifeHuman life cannot continue without science and technology. For many centuries, human society develops with the advance of science and technology. So the life we are living now is more civilized than that of our forefathers.The development of science and technology has brought about many changes in people's life. For example, the invention of television and the space rocket has opened a new era for mankind. Through the use of TV people can hear and see the events, which happened or, are still happening thousands of miles away. Owing to spaceship and the rocket, the dream of man's landing on the moon has now come true.Science and technology also play an important role in our social construction. We may say that our social construction is like a skyscraper that cannot be built up without the help of science and technology. Therefore, we should try our best to contribute to the development of science and technology so as to provide a more solid base to build our country.写给姑姑的感谢信（ A Note of Thanks to an Aunt）Dec. 15, 2010Dear Aunt Mary,What a beautiful Christmas gift you sent me! A fitted bag is something I’ve wanted for a long time, but could never get for myself.Thank you so much, Aunt Mary, I’ll have the bag for years and years, and I’ll think of you with gratitude and affection every time I use it.Lovingly yours,RuthA LetterDear Sir or Madam,I am writing to you out of an urgent need for a digital camera. As I am going to travel to Tibet in one and a half months, I desperately want to have a better camera. I would like to buy a Sony 168V that will be easy to carry and more convenient to take pictures and make videos with.I am wondering how I shall pay for the camera. I wish to send money in an affordable and convenient way. Can I remit money from a post office or use a credit card?By the way, can you tell me how soon the camera will reach me? And in which way? Sent by post, or how else? I would appreciate it if you send it as soon as possible. I am looking forward to your reply at your earliest convenience.Yours Sincerely,Zhang QiangPleasures and Pains of a Child1.童年是人生中最快乐的时光。

2.童年的喜与悲。

3.结论。

It is said that childhood is the most wonderful time in one’s life. Therefore, many old people wish they could be young again. If you take a more careful look, you will see that a child has both pleasures and pains.A child has no responsibilities. He is fed, looked after and loved by his parents. In addition,life is always presenting new things to him--- things that older people are not interested in. A child has his pains too. He is not so free to do whatever he wants to as he thinks older people are. He is continually being told by his parents not to do this or that, or being punished for want he has done improperly. His life is actually not perfectly happy.In fact, each age has its pleasures and its pains, and the happiest person is the one who enjoys what each age gives him without wasting his time in regrets.(160words)On Making FriendsAs a human being, one can hardly do without a friend. If we don't have a friend in the world, our life will not be interesting and we cannot live more happily.But what is true friendship? True friendship can share happiness and sadness with you. A bad friend, on the other hand, only loves you when you are lucky and rich. When you become poor and powerless they will desert you. We all know, “A friend in need is a friend indeed”. So, we need to take the persons who are dedicated to the contribution of our relationship as our real friends.I choose my friends only when they can share not only my happiness but also my sadness.If You Hav e a Dream…If you have a dream, don’t wait for some distant1 day to come. It may be too late before you’ve even begun.Be true to yourself first and foremost. The only important thing in life is what you do with the time yo u spend here on earth. Don’t be afraid to follow your desires. They are neither silly nor selfish; take the time and do what makes you feel alive. Leave your fears and rearets in the past. Our eyes are placed in front because it’s more important to look ahead than to look back. If you look back, your journey is ended. You have only today to begin anew2 and follow your dreams, for in the end, all we have are our memories.Do not quiet your dreams. When the twilight comes to us, let there be no excuses, no explanations, no regrets!。