【正文】 o parties.3. In my opinion, people should write clearly.Note: The possible correct answers for Exercises W6W7 are so varied that you might wish to discuss your answers with a fluent English speaker.Exercise W6These supporting ideas are based on the examples given in the Answer Key for Exercise W1. Yours may be different.1. Ⅰ. disadvantages of owning a carA. expensive to buyB. expensive to maintainC. difficult to parkD. causing air pollution and traffic jams2. Ⅰ. reasons for living in a remote areaA. get away from city noiseB. live in unpolluted areaC. remaining where one has been bornD. be closer to nature3. Ⅰ. disadvantages of studying abroadA. far from family and friendsB. difficulty in understanding a foreign languageC. more expensiveD. hard to get home in an emergency4. Ⅰ. kinds of home accidentsA. fallsB. poisoningC. burnsD. cuts5. Ⅰ. kinds of airportsA. internationalB. nationalC. ruralD. private6. Ⅰ. problems caused by absenteeismA. lost productionB. missed deadlinesC. mistakes made by substitutesD. expenses for training substitutes7. Ⅰ. methods to prepare for taking examsA. study on a regular basisB. review appropriate materialC. anticipate questionsD. get good night39。s sleep the night before8. Ⅰ. changes brought by putersA. better telephone servicesB. information easier to obtainC. easier inventory procedures in businessesD. helpful in education9. Ⅰ. ways to prepare riceA. rice with vegetablesB. fried riceC. curried riceD. rice salad10. I. steps to organize a camping tripA. make a list of necessary items to takeB. get maps of areaC. have car in good conditionD. check weather reportExercise W7These are only a few examples. Your paragraphs will be different. Have a fluent English speaker check your paragraphs.1. The disadvantages of owning a car are many. First, they are much more expensive to buy than bikes or motorcycles. After having purchased a car, the owner is then faced with the expense of maintaining it. Also, it is frequently hard to find a parking place for a car. Last but not least, the increasing number of cars will lead to more serious air pollution and traffic jams, especially in large cities. 2. The reasons a person lives in a remote area may be one of the following. Cities are usually very noisy, and a person may want to get away from the noise. Another attraction of a remote area might be that it is unpolluted. If a person was born and raised in a remote area, he or she may want to remain in the place that is best known. Finally, some people like to be closer to nature, and this is easier away from a city.3. Before applying to a foreign university, one should consider these disadvantages of studying abroad. First, a student may feel alone by being far from family and friends. Also, difficulty in understanding a foreign language can be very frustrating and can affect the student39。s grades. It can be very expensive to pay the costs of travel and housing in a different country. Finally, if here is an emergency at home, it is hard to get home in a hurry.4. Although a person thinks it is safe at home, many different kinds of accidents occur there. Falls are perhaps the most mon accident among both young children and older adults. Poisoning is a danger, especially if an adult leaves medicines or cleaning chemicals within the reach of a small child. Burns frequently occur in the kitchen area during meal preparation. Finally, people cut themselves when using kitchen knives, trimming equipment in the yard, and power tools in the workshop or garage.5. There are several kinds of airports. From an international airport, flights go to other countries as well as to cities in the same country. A national airport usually only serves the cities within its nation. Rural airports usually link a town with a nearby national airport. Private airports are those on a military base or a hospital. Individuals and panies can own their own private airports.（二）段落的銜接1. 1) First, Second, Instead, Third, In contrast, Fourth, Consequently, Finally, But2) Although, First of all, Furthermore, Once, Second, Sometimes, At other times, Finally, Then2. for, so, but, and, and, and, however, but, and3. Television was invented by John Logie Baird. When he was young he built an aeroplane. He tried to fly in it, but it crashed down below. However, Baird was fortunate not to be killed. It did not discourage him. Instead, when he was older he tried to make diamonds from coal. The only result was an enormous explosion. Yet he was not injured. Then, he became a businessman. When his business failed, he thought of working at television. His family advised him not to, but he did not listen to them. He rented an attic, bought the apparatus he needed and started working. Although he worked for a long time, he was not successful. One day he saw a picture on his screen. So he rushed out to get someone he could “televise”. He found an office boy and took him back to his room. However, no image of the boy appeared on his screen. The boy, terrified, had put his head down. When he put it up again, his picture appeared on the screen. That’s how television had been discovered.4. In the United Stated there is a belief that people are rewarded for working, producing, and achieving. Many people believe that there is equality of opportunity that allows anyone to bee successful. This belief is illustrated by stories written by a nineteenthcentury American novelist, Horatio Alger, who wrote about the “American Dream”. In his stories he described poor people who became rich because of their hard work, honesty, and luck. The stories reinforced the idea that all individuals, no matter how poor, were capable of being wealthy as long as they were honest and hardworking. For many Americans, however, Horatio Alger’s “ragstori