解： （1）A（0，2），B（，1）（2）（3）如图 1，可求得抛物线的顶点D（）设直线BD的关系式为， 将点B、D的坐标代入，求得， BD的关系式为设直线BD和x轴交点为E，则点E（，0），CE=DBC的面积为（4）如图 2，过点作轴于点M，过点B作轴于点N，过点作轴于点P精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 1 页，共 12 页在 RtABM与 RtBAN中， AB=AB，ABM=BAN=90 - BAM， Rt ABMRtBAN BM=AN=1，AM=BN=3， B（ 1，）同理ACPCAO，CP=OA=2，AP=OC=1，可得点C（2，1）；将点B、C的坐标代入，可知点B、C在抛物线上（事实上，点P与点N重合）精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 2 页，共 12 页中考英语书面表达背诵范文 （二）一、 Great changes in my hometownMore than twenty years ago, my hometown was just asmall , old and poor town. Most of people were far mers. There were fewfactories. The people didn t have enough food to eat and wore old clothes. Theyhad a hard life . Great changes have taken place in the past twentyyears . The people have found a lot of ways of making money . Now there aremany tall buildings . They are very beautiful . Roads are wide and clean .People can take buses or drive their own cars to go to work . Many people havecell phones and personal computers. Peoples living conditions have improved alot . Thanks to the governments efforts . my hometown is becoming more andmore beautiful . 二、 Save the earthHow to protect the environment has become one of thebiggest problems in the world . 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 3 页，共 12 页It s our duty to protect our environment . No matterwhere we live , we should do something to keep our neighborhood clean and tidy. We can collect waste paper or other waste things for recycling. We shouldplant more trees and we should prevent those factories from pouring waste waterinto rivers, lakes and fields. Weshouldn t leave rubbish everywhereand spit in public places . We mustnt pickthe flowers or step on the grass in public. If everyone tries his best toprotect the environment , the world will become much more beautiful and ourlife will be better and better . 三、 Improve our environmentGood environment can make people feel happy. Toimprove the environment means to qualify our life . What should we do toimprove our environment ? We should plant more trees . And we should preventthose factories from pouring waste water into rivers , lakes and fields .Whenever we see litter on the ground , we should pick it up and throw it into adustbin . Dont spit in public places . Don t draw on public walls . Its ourduty to keep our earth clean and tidy . 四、 Pollution around usIn recent years our life isbecoming better and better. But our environment is becoming worse and worse. It svery bad for our life. Now many people have air-conditioners and cars, theyproduce (give off ) waste gas. More and more trees are being cut down. Thereare so much sand on the earth (leaving only sand ) . We often see factoriespour waste into rivers or lakes. Water in the river is quite dirty. We haventenough clean water to drink in cities. Now we are in danger. It s verynecessary and important to protect the environment well. I think if everyonetries his best to protect the environment, the world will become much morebeautiful , and our life will be better and better .精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 4 页，共 12 页五、 Make our world more beautiful !Protecting theenvironment is becoming more and more impor tant to humans . It s our duty totake care of the nature around us . Animals and plants are our best friends .,and we should share the world with them . We shouldn t kill wild animals , andwe must protect forests because they are animals home . We must pl ant moretrees and grass , they can make the world greener . The more beautiful theworld is, the happier lives we will have . Lets do our best to make the worldbeautiful.六、 Keep our school cleanWe are studying in this school. It is our duty to keepit clean and tidy. It is not good to spit in public places, such as in thelibrary, in the class. We shouldn t leave rubbish here and there. Dont drawpictures on the wall, they influence the look of our school . We should keepthe classroom clean and tidy. And we should do some cleaning often. If everyonetries his best to do something useful for our school, Im sure our school willbe more beautiful . 七、 My country lifeI like to live in the countryside. I live in a smallvillage. There is a river near it. Lots of trees are around my house. I can seea lot of farms and birds. There is less noise. The air here is cleaner andfresher. There are fewer cars. I read aloud early in the morning. When it isgetting dark, the moon is bright in the sky. It s very quiet . What a niceplace I live in ! 八、 How to learn English well精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 5 页，共 12 页As we know , English has become an internationallanguage. It is more popular than any other language in China . English iswidely spoken in the world and it is the most useful language around the world. But how to learn it well ? The best way is to use it all the time . If we cantalk in English , think in English we can learn it well . At school , we shouldlearn to hear , speak, read and write carefully . We should spend enough timein practicing English . If we keep on working hard at English , we will be ableto be good at it one day . 九、 How I learn EnglishHello, everyone. It is my honor to talk with all ofyou about how to learn English well . I like English very much . I alwayspreview and master the main idea of the lesson before class. In class , Ilisten carefully , speak loudly and write carefully and take notes if necessary. After class , I do my homework carefully . I watch English movies and listento English songs . I have booked an English newspaper . It s Times English Post, I can learn a lot from it . I am not afraid of remembering the new wordsbecause I master many good methods . I hope you work hard at English and makeprogress every day . Thats all . 十、 How I improved my EnglishWhen I began to learn English, I was poor at it. I wasquite worried at that time. Later I 1istened to the teacher attentively inclass, and made notes carefully. If I had any question, I asked my Englishteacher or my classmates for help. Every morning I read the English texts aloudand listened to the English tapes. In the evening, after finishing my homework,I always read some English and magazines. Now I am one of the best students at English in myclass. 十一、 The importance of EnglishEnglish is the most widely spoken in the world. Itsspoken by most people in the USA, Great Britain, Canada, Australia, and New Zealand.Its also very widely used as a foreign language in many other countries of theworld. Its widely used 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 6 页，共 12 页for business between different countries. More thanthree quarters of the information on the Internet is in English, too. It isreally a bridge to so much knowledge . English is used by travellers and businesspeople around the world. Its one of the worlds most important languages as itis so widely used. Thats why more and more people in China are interested inlearning English. English is so useful that we must learn it well . Nowlets work hard at it and see who learns it faster and better in our class . 十二、 I want to be an inventorTVs, telephone, fridges, cars, planes, computers andmany other things are important inventions. They have greatly changed our life.Many people have their ideas and wishes. They want to invent some new thingsfor the world. I am one of them. I want to be an inventor in the future,Inventions can bring fun and happiness to our life and make our daily life moreconvenient. Our life will become better and better. Now I am a high schoolstudent. I will try my best to work hard at my lessons to make my dream cometrue. 十三、 I want to be a tour guideI want to be atour guide because Beijing will host the 2008 Olympic Games. There will be manypeople to come to China from all over the world. Most of them dont knowChinese. They want to visit many interesting places in China. I can be one ofthe guides. I can make much money, too. How happy I will be! So from now on , Imust study hard. I am going to learn English every day. I will try my best tomake it come true. 十四、 I like theInternetThe Internet is play ing an important part in our dailylife. It s very useful. I often search the Internet for some information. I canread the latest news, do some shopping, and get all kinds of information fromit. I can also download the information that I need and I can send e-mails and maketelephone calls to my friends 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 7 页，共 12 页on the internet. The most important thing is thatI am able to study all my lessons on the Internet. The Internet makes my life more interesting andcolorful and it has a wide effect on my study and daily life. I like theinternet very much. How about you / Will you have a try ? 十五、 The InternetThe Internet is becoming more and more important tous. Without it, we cant do work better. We can go shopping without going outof our houses. And we can listen to music or watch movies on the Internet. Itcan also help a lot with our study. We can learn much knowledge on differentsubjects, and get information as soon as possible. But now, some of us work,study or play on the Internet for long time, especially for young people toplay computer games. It s bad for our eyes and health. If we make good use ofthe Internet, it will be our best friends and help us a lot . 十六、 ComputerComputer is a wonderful machine. Its a greatinvention in many years. It develops very quickly. The smallest computer is asbig as a note-book. We call it pocket computer. Computer becomes more and moreimportant in many ways. It has touched the lives of everyone, even people in farawayvillages. It helps us to do with all kinds of information and we get knowledgefrom it. It can give us a lot fun. 十七、 The importance of waterOf all the things we eat and drink, water is the mostimportant. We can live without food for many days, but two or three dayswithout water, usually makes people die. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 8 页，共 12 页However, not all of people understand this. They keepthrowing rubbish into the rivers or lakes . Some factories even pour wastewater into the river. As a result, many rivers and lakes have become so dirtythat the water is no longer safe for people to drink . Let s do our best to keep the water clean to saveourselves . 十八、 WaterWater is very important for our life. Every day we usewater to drink, too cook and to wash. Water is necessary for all plants. Theyneed water to grow. People cant live without water. Plants will die withoutwater. It is important to all living things. However, many people pollute lakesand rivers with waste water, so we must stop some people or some factories fromwasting water or polluting water and help keep the water clean. At the same timewe should save as much water as possible. 十九、 I like sportsI feel that taking exercise is good for our health. Ioften felt tired when I was studying before. From this term I keep on runningwhen I get up in the morning. After class I often go to play basketball with myfriends. Now I feel much better than before and I never feel tired when I amstudying And I improve a lot in my lessons. So please take exercise as often aspossible . 二十、 Introduce yourselfMy name is Li Lei . I was born in Fuzhou on December15 ,2000 . Im studying at Yucai Middle School. I learn Chinese, math, English,physics, chemistry, politics, and so on. I like English best. My favorite sportis football. My hobbies are drawing and computer. Im very happy to live in ahappy family. There are 3 people in my family. My father is a doctor. My motheris a teacher. We love each other very much . 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 9 页，共 12 页二十一、 My best friendMy best friend is - He is 15 years old. We are bothin the same class. He works very hard. He is never late for school and he doeswell in all his lessons. He is always ready to help others. My math is verypoor, so he often helps me with my math after class. His parents are bothteachers. They are very busy, so he often helps do the housework at home. He isa little shorter than me but he is very strong. He likes playing football verymuch at school. We often play football together and he plays it pretty well .He gets on well with us . Everyone in our class likes him . 中考英语书面表达优秀范文赏析例 1：随着阳光体育运动在全国开展，政府对中学生身体素质有所下降这个问题给予了高度重视，提出了这样的标语：“EXERCISE ONE HOUR A DAY, KEEP ILLNESS AWAY”。同学们参加了各种体育锻炼之后，校园里出现了可喜的变化，强身健体，增强了学习效果，校园生活丰富了。请你报道一下学校开展这一活动的情况。注意： 1. 词数 80 100 左右。2. 要求文章结构合理、内容通顺、句子连贯。参考词汇： build up ones body strength 强健身体reduce diseases 减少疾病构思方法：1.认真阅读、 理解和思考题目中给出的所有信息点。信息点是围绕着提示从文字中扣出来的。2.这个题目的信息点应该是：a.阳光体育； b.政府重视中学生身体；c.提出的标语；d.参加了各种体育锻炼；e.有利于强身健体；f.增强了学习效果；g.校园生活丰富了。写作方法：1.安排以上信息点在文中的逻辑关系。2.用所掌握的词汇、 词组、固定句型将所有信息点表现在文章中。(the Sunny Sports, pay attention to the health of the students, raise the slogan, take part in the exercise, build up ones body strength, reduce diseases, make study effective, school life, colourful)3.文章最后加入个人评价(观点 )。下面是学生的作文：(1) 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 10 页，共 12 页As the Sunny Sports is developing in our country, the government has paid attention to the health of the students and raised, EXERCISE ONE HOUR A DAY, KEEP ILLNESS AWAY. So far our school life has changed a lot. Now we have more time to do sport in the morning or after school. We play football, basketball, badminton and swim. They let our brains relax and make our school life more colorful. We have become more energetic. Above all our study has all been improved. Let s take exercise every day. It can build up our body strength and reduce diseases.(2) Doing sport builds up our body strength and reduces diseases. Though we lead a better life, our health is becoming worse now. So EXERCISE ONE HOUR A DAY ，KEEP ILLNESS AWAY has been raised by the government. At noon or after school we play ball games, swimming and running. Look! The playground seems smaller because lots of students are playing on it. The school life has become colorful and we are energetic. As a result we study harder and better. The Sunny Sports has brought an exciting change to us. Lets keep on doing it. 这是两个学生的习作，他们分别以独特的思路和风格，利用丰富的词汇、准确的时态、简单句和复合句的搭配、合理的构思使文章语言流利，一气呵成， 展现了扎实的英语语法功底和综合运用能力。例 2：健康对于我们每个人来说是非常重要的，但你的父母天天忙于工作而忽略了这个问题，你很为他们担忧。请你以此为话题，并结合提示给他们写一封信。提示： 1.要走路去上班，而不是开车或坐车；2.每周至少去体育馆锻炼一次，或打球、或游泳； 3.饮食要健康； 4.不要工作太晚，要早休息。要求： 1.短文结构完整，意思连贯，语言流畅，语法准确，符合逻辑；2.80100 词左右； 3.开头和结尾部分已给出，不计入总词数。构思方法：1.找到信息点。2.这个题目的信息点应该是：a.作为儿 (女)担忧父 (母 )的身体状况； b.上班最好步行；c.每周至少一次到体育场馆从事体育锻炼(球类运动、游泳等)；d.健康的饮食； e.早睡不熬夜。写作方法：1.首先要谈到对父(母)的身体状况担忧。2.然后引出希望父(母)怎么做。3.作为小辈向父母提出建议和要求时，要注意语气，不可以命令。4.注意信的写作格式。学生的作文：(1) Dear Dad(Mum), Youre so busy every day that you dont pay much attention to your health. Im worried about your health all the time. Id like to give you some suggestions. I hear walking is the best sport. Your company isnt far from home, is it? Why not walk to the office? Youd better take exercise at least once a week, such as playing tennis in the gym. Going to swim is also a nice choice, too. Whats more, its necessary to have healthy food. Try not to stay up too late. Having enough sleep can help your brain work better. Dad, please accept my advice. I really wish you healthy! 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 11 页，共 12 页Your loving son (daughter) Tom (Mary) (2) Dear Dad (Mum), Youre so busy every day that you dont pay much attention to your health. I am worried about you. I hope you can keep healthy. You often drive to your office. It is not far. What about walking there because it can make you much stronger? Id like you to play basketball or go swimming in the gym at least once a week. It is important to eat healthy food such as vegetables, meat, eggs and fruits. Though your work is hard, I still hope that you can go to bed early so that you can get enough sleep. I m looking forward to receiving your letter.Your loving son (daughter) Tom (Mary) 这两篇作文使用了I d like to，Why not?It is important to do,Try not to do,I hope that,What about doing?I d like you to do,You d better do等婉转口气的请求句式，表达出了作者对父(母)的关心，信息点完整，内容充实，注重了书信的结尾形式。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 12 页，共 12 页