【正文】 CP: Let me congratulate you! But is there an ine to be made in that?H: Yes, indeed. Quite a good one. This is the age of the newly rich. People begin their working life in a poor neighbourhood of London with 80 pounds a year and end in a rich one with 100 thousand. But they betray themselves every time they open their mouths. Now once taught by me, she39。t proper writing. I can39。m an honest girl I am! (begins to cry)H: (kindly) There! There! Who39。m afraid I39。s forehead, he could make his mother understand what he was saying. He believed that one should always be curious and his most famous saying was: Leave the beaten track occasionally and dive into the woods. Every time you do you will be certain to find something that you have never seen before. Follow it up, explore all around it, and before you know it, you will have something worth thinking about to occupy your mind. All really big discoveries are the result of thought. It was this exploring around problems and his dynamic spirit that led to his most famous invention the telephone in 1876. Bell never set out to invent the telephone and what he was trying to design was a multiple telegraph. This original telegraph sent a message over distances using Morse code (a series of dots tapped out along a wire in a particular order). But only one message could go at a time. Bell wanted to improve it so that it could send several messages at the same time. He designed a machine that would separate different sound waves and allow different conversations to be held at the same time. But he found the problem difficult to solve. One day as he was experimenting with one end of a straw joined to a deaf man39。s first cloned twin calves 1981 first experimental clones of mice 2002 first cloned cats 1983 first experimental clones of cows 2005 first cloned dog … From time to time people suggest that extinct animals like dinosaurs, can possibly be brought back to life through cloning. Unfortunately, with what we know now, this is either impossible or unsuitable. There are many reasons.◎ The initial requirement is that you need perfect DNA (which gives information for how cells are to grow).◎ All efforts of cloning an animal will be in vain if there is not enough diversity in the group to overe illnesses. Diversity in a group means having animals with their genes arranged in different ways. The advantage is that if there is a new illness some of these animals may die, but others will survive and pass on the ability to resist that disease to the next generation. The great drawback to cloning a group of animals is that they would all have the same arrangement of genes and so might die of the same illness. Then none of them would be left to continue the species.◎ It would be unfair to clone any extinct animals if they were to live in a zoo. A suitable habitat would be needed for them to lead a natural life. Based on what we know now, you cannot clone animals that have been extinct longer than 10,000 years. Actually, dinosaurs disappeared 65,000,000 years ago. So the chance of dinosaurs ever returning to the earth is merely a dream. 選修8 Unit 3 Inventors and inventionsReadingTHE PROBLEM OF THE SHRIKES When I called up my mother in the countryside on the telephone she was very upset. There are some snakes in our courtyard, she told me. Snakes e near the house now and then, and they seem to have made their home here, not far from the walnut tree. Can you get rid of them please? I felt very proud. Here was a chance for .me to distinguish myself by inventing something merciful that would catch snakes but not harm them. I knew my parents would not like me to hurt these living creatures! The first thing I did was to see if there were any products that might help me, but there only seemed to be powders designed to kill snakes. A new approach was clearly needed. I set about researching the habits of snakes to find the easiest way to trap them. Luckily these reptiles are small and that made the solution easier. Prepared with some research findings, I decided on three possible approaches: firstly, removing their habitat。s a fascinating drive marked out for tourists. It has blue and white signs with seagulls on them to show the way to go. It39。選修8 Unit 1 A land of diversityReadingCALIFORNIACalifornia is the third largest state in the USA but has the largest population. It also has the distinction of being the most multicultural state in the USA, having attracted people from all over the world. The customs and languages of the immigrants live on in their new home. This diversity of culture is not surprising when you know the history of California.NATIVE AMERCANSExactly when the first people arrived in what we now know as California, no one really knows. However, it is likely that Native Americans were living in California at least fifteen thousand years ago. Scientists believe that these settlers crossed the Bering Strait in the Arctic to America by means of a land bridge which existed in prehistoric times. In the 16th century, after the arrival of the Europeans, the native people suffered greatly. Thousands were killed or forced into slavery. In addition, many died from the diseases brought by the Europeans. However, some survived these terrible times, and today there are more Native Americans living in California than in any other state.THE SPANISHIn the 18th century California was ruled by Spain. Spanish soldiers first arrived in South America in the early 16th century, when they fought against the native people and took their land. Two centuries later, the Spanish had settled in most parts of South America and along the northwest coast of what we now call the Un