高中英语语法-议论文精选（2）之二

　　议论文精选（2）之二

　　a person with bad manners. A person with good manners never laughs at people when they are in trouble. Instead， he tries to offer help. When he asks for something， he says please and when he receives something， he always says thanks。 He does not interrupt other people when they are talking. He does not talk loudly or laugh loudly in public. When he sneezes or spits， he uses a handkerchief. As a sutdent， it is a bad manner to come late to class. If you are late you should say I'm sorry. to the teacher at the time or after class.

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　　　　Nowadays it is not unusual for many students to find part-time jobs. During the past winter holiday， I worked as a waiter at a McDonald.

　　　　I used to keep on asking my parents for money. It is the first time that I've earned money， so I was quite excited. Now I can buy whatever I need without asking others for money. From my working experience， I found it's a great preparation for the world outside schools. I understood not only the value of money but also the way of getting along with others. What's more， I have got some working and social experience. It's good for my future work. In a word， I've had a wonderful vacation.

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　　　　Sports keep us fit land fresh. Everybody likes to do one kind or another. But not all people know how to do them correctly and sometimes the advice we got may be wrong.

　　　　I'm lucky， for since my first day at school I have always had a good teacher of physical education. I have always been very strong.

　　　　I go swimming almost every day all the year round， of course I like many other sports too. I am thinking of taking part in a few items at the school sports meeting this autumn.

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　　　　Why Are Many Animals Dying out？

　　　　There are many reasons for animals dying out， but the most important one is the part that humans have played. First， many animals have been killed for food. Second， many of the places where animals used to live have been destroyed. Wet land has been turned into field. More and more trees in the forests have been cut down， but few trees are planted. Much land has either been changed into agricultural land or used for building factories and houses. Polluted rivers and lakes have also been a cause of death of some of the animals.

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　　　　If You Want to Be Strong and Healthy

　　　　If you want to be strong and healthy， you must pay attention to the following. First， you should get enough sleep， and do morning exercises every day. Have meals at regular time and do not hurry when you eat. Remember to sit straight when you read and write. Breathe in as much fresh air as you can. When you come home from school， go out into the open air and play for an hour or so. Keep your body clean. Have a cold shower every morning. Wash your hands before meals.

　　　　If you do all these above， you will be strong and healthy.

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　　　　Trees Are Important to Use

　　　　Trees are very useful to people. They provide us with wood and other products. They give us shade and they help to prevent drought and floods.

　　　　Unfortunately， in many parts of our country， people haven't realized the importance of trees. They cut them down at will. They are usually too lazy or too careless to plant and look after new trees. As a result， the forests continue to disappear.

　　　　Where there are no trees the rain falls on the surface， causing floods， and carries away with the rich topsoil， in which crops grow so well. When all the topsoil is gone， nothing remains but worthless deserted.

　　　　The big floods of 1998， in parts of China， have already taught us a good lesson. So every one of us must love trees， protect forests， and keep on planting trees each year.

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　　　　Smoking and Health

　　　　Today cigarette smoking is a widespread habit all over the world. It was reported recently that smokers make up one quarter of the world population， while in China， 33.9 precent above the age of 15 are smokers. It's a very serious problem because not only the old， the youth， but also middle school students and girls have been engaged in smoking.

　　　　Many heavy smokers say they cannot leave off， although they know smoking is harmful to their health and they have tried again and again to stop.

　　　　Scientific research shows that smoking is not only harmful to smokers themselves， but also a threat to public health， especially to women and children. The poisonous gas from smoking is one of the major causes of many kinds of diseases. Therefore， many countries have worked out laws forbidding smokers to smoke in public places such as cinemas， hospitals and stations.

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　　　　How to Reduce the City Present Population？

　　　　Our modern city is too crowded， and to solve the problem， three proposals are put forward. Most people believe that we should fist practise