高二英语作文：中国第一个宇航员精选20篇

Though we are told that alcohol is dangerous, especially driving a car

after drinking alcohol, we can see the news about car accidents because of the

driver drinking alcohol everyday, still people ignore the danger of drinking

alcohol. Life is precious, no one will take responsibility of our lives except

ourselves. Drinking too much will do harm to our body, even if you don’t cherish

your life, while when you drive the car after drinking, you will take away other

people’s lives. That is unforgivable, people have a happy family, they die

because of your careless driving, and you will never have a chance to make up.

Our government is very strict to the driver, the law clearly claims that

drinking driver will be heavily punished. In order to make sure other people’s

safety, we should not drive the car after drinking alcohol, or we ask friends to

take us home.

As the whole world has its boundaries, limits and freedom coexist in our

life. I don’t expect complete freedom, which is impossible. I simply have a

dream that supports my life.

I dream that one day, I could escape from the deep sea of thick schoolbooks

and lead my own life. With my favorite fictions, I lie freely on the green

grass, smelling the spring, listening to the wind singing, breathing the fresh

and cool air and dissolve my soul in nature at last. Simple and short enjoyment

can bring me great satisfaction.

I dream that one day the adults could throw their prejudice of comic and

cartoon away. They could keep a lovely heart that can share sorrow and happiness

with us while watching cartoon or doing personal things. That’s the real

communication of heart to heart.

I have the belief that my dreams should come true. I am looking forward to

some day coming when I am like a proud eagle, which flies to the blue and vast

sky.

The large number of our population has become one of the most serious

problems of our society. According to a recent survey of the National Bureau of

Statistics, there are more than 1.3 billion people in our country, which account

for about 1/5 of all the people in the world. the same survey also predicts that

our population will grow quickly in the years to come.

Overpopulation has brought about a series of negative effects to our

economic development and social security. In the first place, too many people

impose a heavy burden on our environment. As a result, we suffer from a shortage

of fresh water and natural resources. In the second place, as the supply of

labor GREatly exceeds the demand of the society, many people become employed.

This is a source of social unrest. Last but not least, we have to manufacture

all kinds of products to meet the needs of the people, which causes environment

pollution to our lakes and land.

Serious though the problem seems, we have to take some measures to tackle

it. On the one hand, the government should carry out more strictly the policy of

family planning, thus reducing the total number of population. On the other

hand, all the people should realize the harms of overpopulation. With the

concerted efforts of all the parties concerned, we’re sure to solve the problem

in the future.

I took a trip to Shanghai with my mother during the seven-day holiday. It

took us more than two hours to drive to Shanghai from my home in Haimen. We

stayed in a large hotel on the eighth floor. On the first day， I just stayed in

the hotel and rested. On the second day， my brother and I went to Nanjing Road.

It’s the busiest street in Shanghai. When we got there， there were lots of

people. We walked from one shop to another. I bought two T-shirts and two pairs

of trousers for the ing summer. The T-shirts and trousers I bought are all white

because white is my favourite colour. My brother also bought some clothes. On

the third day， my mother took me to Jinjiang Entertainment Centre. It was full

of people. I played many kinds of gamesthere. I had a good time. The other days，

I went to some other interesting places， such as the Oriental Bright Pearl TV

Tower， the Huangpu River and Shanghai International Conference Centre. I didn’t

forget to do my homework in the evening. I had a full and happy holiday.

when i was a little child, i had many dreams. i wanted to be rich, so that i can live in a big and beautiful house. i can go everywhere by car. but now, my dream seems to be better and more realistic. i hope i can have a good job. it will not take much of my time, although i can’t earn much. every year, i have holidays to travel. traveling is my favorite and it can reduce my pressure. it’s good for my life. therefore, i hope traveling can be a part of my future life.

Goethe said, "He is the happiest, being king or peasant, who finds peace in

his home" It is true. Home is the warmest place in the world. Home is the

harbor.No matter where you are, you would like to be back home in the end.

Home is the place which we often need to build. In order to create a kind

of warm and intimate atmosphere, we must respect and understand each other. As a

member of the family, it is not right to demand perfection from each other. The

proper way is to cultivate flexibility, patience, and sense of humor. Parents

can be more open-minded and trust their children, and the children should

understand their parents pains. If we have spare time after supper, we may

often communicate with each other and talk about what happened in the daytime.

This type of conversation, called "small talk", is of great importance because

it often helps deepen the feelings between parents and children.

If we do so, I believe our home will always be sweet.

There is a saying that every family has its trouble. Indeed, no one can go

on well all the time. My parents have found the good way to educate us. Thus,

when there is conflict happening between the relatives, we obey the rules and

know what to do. My parents have set up many rules for me and my sister, which

works to solve problems. The first rule is to say thank you when we get help.

Such as when someone open the door for us, we also need to show gratitude. I

find people feel happy when I say thank you to them. The second rule is to never

get angry for more than two days. So when I have disputes with my sister, we

wont be mad at each other for long time. The family rules make me a better

person.

Table Manners

The main difference between Chinese and western eating habits is that unlike the West, where everyone has their own plate of food, in China the dishes are placed on the table and everybody shares. If you are being treated by a Chinese host, be prepared for a ton of food. Chinese are very proud of their culture of cuisine and will do their best to show their hospitality.

And sometimes the Chinese host use their chopsticks to put food in your bowl or plate. This is a sign of politeness. The appropriate thing to do would be to eat the whatever-it-is and say how yummy it is. If you feel uncomfortable with this, you can just say a polite thank you and leave the food there.

Eating No-nos

Dont stick your chopsticks upright in the rice bowl.Instead,lay them on your dish. The reason for this is that when somebody dies,the shrine to them contains a bowl of sand or rice with two sticks of incense stuck upright in it. So if you stick your chopsticks in the rice bowl, it looks like this shrine and is equivalent to wishing death upon a person at the table!

Make sure the spout of the teapot is not facing anyone. It is impolite to set the teapot down where the spout is facing towards somebody. The spout should always be directed to where nobody is sitting, usually just outward from the table.

Dont tap on your bowl with your chopsticks.Beggars tap on their bowls, so this is not polite.Also, when the food is coming too slow in a restarant, people will tap their bowls. If you are in someones home,it is like insulting the cook.

living in a big city英语作文(一)

Compared to last years statistics, this year more and more youngsters would like to launch a career in first-tier cities. There is no doubt that residing in big cities brings more chances to be hired and promoted. Futher benefits associated with big cities are higher income, indeed decent social status, and the most prevalent pastimes.

Virtually, each coin has two sides. There are also lots of disadvantages living in first-tier cities. With the explosive growth of house price and higher price of commodities,inevitably, you would burden more pressure living in big cities. Likewise, big city has a dense and large population. As a result, you may encounter vast crowds of people when you are out, and you have to wait in a long queues at the hospitals when you get ill as well.

In my points, only by discovering yourself and knowing whats your niche areas can you hope to lead a better life. As for fortune, as for fame, they are of no consequence just like floating clouds. Nothing is more significant than your own happiness.

living in a big city英语作文(二)

The city is the place where all industrial, cultural and educational centers are situated. In big cities you can find museums, theaters, clubs, cinemas, big shops and hospitals, comfortable modern flats.

People try to live in cites because all necessary objects are situated nearby. For example if you get ill a hospital or a chemists shop will be situated near your home in the city, and if you live in the country it will be hard to find any medical help very quickly.

Also in big cites you can find all sorts of entertainment such as cinemas, clubs entertaining parks and so on. Many people like to spend their free time there because it helps them to relax and bring them a lot of pleasure.

It is really convenient that everything you need in daily life is situated near you. One of the most important comforts of big cites is that you can quickly get everywhere you like by underground, bus, trolleybus. Also in big cities there is electricity therefore you can use electrical devices such as TV sets, computers, radio, microwave oven, refrigerators and so on.

One more thing, without which it would be impossible to live today is the telephone and where there is a telephone there is also Internet. The communication (связь) has huge value in the life of people and we have got used to it to such extent that if there is no telephone we feel uncomfortable and lonely.

Yes, it is really comfortable, and at first glance everything is good but nowadays big cites there are a great amount of cars and factories. Big cites suffer of overpopulation, dirty air, and water, The streets became noisy and after hardworking day people cannot relax.

People try to do everything to go to the countryside because only there they can find silence. Every holiday and every weekend people try to leave their houses and go to the country.

I live in … district. The ecological conditions here are very bad because near my house a lot of industrial objects are situated. For example near … factory is situated. As for me I prefer to live in a big city because a lot of big shops are situated near my home, but I also like to spend my holidays in the country because after living in the city for about 9 months I begin to get tired.

As the spring festival is coming, I decide to tell you something about Spring Festival .

Spring Festival ,known as the Chinese New Year,which counts from the first day in the lunar calendar ,and is the most important holiday in China.From late January to early February,Chinese people are busy preparing for the New Year.They clean their houses ,have their hair cut,and buy new clothes .Jiaozi or dumpling is most popular.To those who live far away from their home,this festival is also a framily reunion occasion.

And they often go back home to celebrate the festival with their family.At the time,the children will play the fireworks and firecracker。further more，once the children greet to olds， for return,the olds will give the children lucky money.and last The first day of the new year is the time when people visit their friends and wish each other good luck in the new year,remember to be happy！

The Spring Festival is our traditional festival, is also every household had a holiday. We should prepare firecrackers, Spring Festival couplets and New Year pictures, eat, lanterns and clothes. Whenever the Spring Festival, is also the most happy when my mood.

When the Spring Festival, every household will prepare many things, you see the people on the street people mountain people sea appear cheery. Mom and I went to buy necessities, we bought a lot of things such as the Spring Festival couplets bought New Year paintings. The most let me happy is I bought some firecrackers. Mother gave me to buy a new suit of clothes. Arranged to buy back, we have to clean the house, mother hang lanterns in the morning to get up, dad is the Spring Festival couplet and blessing all the door, I put all dried fruit in the plate, placed neatly.

Thirty day, mother put on new clothes for me, I was so happy! In the afternoon do mom and dad together I love to eat food more, eat family reunion dinner together when the whole family were very happy. Eat a big dinner the whole family sitting together watching the Spring Festival gala, holiday is wonderful, sketch, songs, and singing and dancing. The adults are making dumplings. Is nearly twelve o clock, rang with firecrackers outside. Dad carrying firecrackers went downstairs, and I came downstairs I smell the fireworks, we put many firecrackers, I also put a fireworks. Just a little hurriedly ran back, wait for a while still wasnt ask dad how havent! I went to take a look! Father said: "no collapse over", I said: "Ill be careful," I went from a point, finally lit, the colorful firecrackers like a blooming flower in the air, beautiful. Finished put firecrackers, we eat dumplings, began to happy New Year, everyone gave me lucky money.

A New Year begins, hope the whole family can happiness. I hope my learning progress.

春节是我们最传统的节日，也是每家每户都过的节日。大家要准备鞭炮、春联、年画、吃的、灯笼和衣服。每当过春节的时候，也是我的心情最高兴的时候。

过春节时，每家每户都要准备很多东西，你看大街上的人人山人海显得喜气洋洋。妈妈和我去买年货，我们买了春联买了年画等很多东西。最让我高兴的是我买了一些鞭炮。妈妈还给我买了新衣服。年货买回来了，我们要把家里打扫得干干净净的，妈妈一早就把灯笼挂了起来，爸爸也把春联和福字帖到门上，我把干果都放进盘子里，摆放的整整齐齐的。

年三十那天，妈妈给我穿上了新衣服，我高兴极了!下午的时候爸爸、妈妈一起做好多我爱吃的菜，一起吃团圆饭时全家人都很开心。吃过团圆饭全家人坐在一起看春节联欢晚会，节日很精彩，有小品、有歌曲、还有歌舞。大人们都在包饺子。快十二点了，外面响起了鞭炮声。我和爸爸拿着鞭炮下了楼，到了楼下我闻到了烟火味，我们放了很多鞭炮，我还放了一个烟花。刚一点就连忙跑了回来，等了一会还没着就问爸爸怎么还没着啊!我去看一看吧!爸爸说：“不行小心崩着 ”，我说：“我会小心的 ”我去从点了一下，终于点着了，那五颜六色的鞭炮就像在空中盛开的花朵，美丽极了。放完了鞭炮，我们吃起了饺子，开始拜年了，每人都给了我压岁钱。

新的一年开始了，希望全家人都能幸福。希望我的学习进步。

Li Ming studies in a high school, and this is his second year. In order to

get improved as soon as possible, he decided to study late every night. Usually,

he would go to sleep about 11 oclock, but the pressure made him couldnt sleep

well, so he kept study until 12 oclock. A month passed, Li Ming realized that

he didnt make progress, instead, he lag behind. He talked to his teacher and

the teacher told him that he needed to rest well and took it easy. Only the

student slept well would he have the energy to study and focus on his attention.

Li Ming did as the teacher said, indeed. It worked, he made progress and he

could thought quickly. Sleeping well is the very important way to improve study

efficiency.

打开地图，你会指向哪个国家？

你可能向往法国，因为你喜欢那里香水般的浪漫情怀；你可能向往英国，因为你喜欢那里的雨雾之都伦敦；你可能向往新加坡，因为你喜欢那里花园似的布局。而让我选，我会选——中国。中国有着五千年的历史，在五千年中，有过屈辱，落后，被侵略，有过觉醒，奋起和辉煌。一代代人用汗血、热泪和激扬为祖国争取了令世人震撼的今天。我骄傲，我是中国人。

古老的中华文明一直被一代代人所延续着。爱中国，可以有一千一万个理由。选一个最浪漫的理由来爱她吧——唐诗生于中国。也许我们心中，都有一个小小的唐朝，所以在今天，唐装才重回我们的衣柜，中国结又系回我们的裙衫，唐朝的歌曲被包上了摇滚的外壳……中国拥有世界独一无二的唐诗。爱唐诗，更爱中国。

每个人都有一个梦想，梦想依附于个人，个人依附于国家。每一个爱国的人心中都有一个中国梦，它是人们生活中不可或缺的明灯。有了它的指引，才会有前行的动力，在多少年后才不会因虚度年华而悔恨，因碌碌无为而羞愧。如同詹天佑，如同邓稼先，如同袁隆平，他们都揣怀着爱国梦想为中国带来了无限的荣誉和富强。

中国振兴以来，取得了一系列的重大成就，令我们国人为之骄傲，令世界瞩目。忘不了北京奥运会的震撼，忘不了神七飞天的自豪，忘不了世博会的精彩，忘不了嫦娥登月的喜悦……少年强则中国强，少年富则中国富。作为高中生，我们更应该为我们的中国梦，为中华的崛起而读书。祖国在发展之中，还有很多需要完善之处。习xx提出了“中国梦”的新时期主题，我们要为之努力。从点滴小事做起，从现在做起。每个人的一点点力量，汇集起来就是一股强大的力量。

我们的梦想便是国家的梦想。为此，我们要继承并弘扬中华民族精神，我们需要坚持不懈，团结奋斗。中国梦，便是我的梦。

梦想会一直揣怀着。

[高二我的中国梦作文

China earthquake contributionsWritten proposal

All Chinese students studying in Australia students

May 12, 2008 at 2:28 p.m., in Wenchuan County in Sichuan Province 7.8 earthquake that caused thousands of casualties now. Sudden disaster to people in disaster areas a great deal of pain. As a student, far away in our hearts has not been away from home but our motherland. We live thousands of miles away, can do little perhaps, but still Some things that we can and should do:

First of all, donations can, but must meet its own capacity to guarantee their own lives to the premise, if excessive contributions or additional work led to their own lives and learning be affected is wrong, should not be advocated.

Second, the world is also not a single country can accurate and timely forecast earthquakes, not to accuse us of the experts, it is now we should unite most of the time, we should trust our government, our soldiers, medical personnel, public information Who are struggling in the front line, we should do most of their strong backing.

Third, as a student, we should always remember our own identity, we are Chinese, our words and deeds on behalf of our countrys image, for those who insult to our national honour of speech and practice, we have what we should do Is to take the initiative and accurate expression to the reality and refute cool, radical words and deeds will only they will not feel that the quality of the people.

Finally and most important point: each in their own posts and do a good job in a matter within their own is also a contribution to the disaster areas. As students, our countrys purpose is to serve the motherland and the future, our most important task is to learn, facing such a catastrophe, we should turn grief into strength, and more efforts to study the future development of the technology, the economic prosperity of the motherland.

Let us surmount, united as one, prayed for the people of disaster areas, I believe the Chinese government and the Communist Party, the motherland and people join hands to tide over this difficult period.

I live with my father and mother in a very big house in dongguan. My parents are both very busy. They leave for work very early in the morning and don’t return home until late in the evening.

When i am home on weekends from school, we spend a lot of time together. we talk about my studies, my health and my school life. i love my parents very much.

My grandparents are still living, but they don’t live with us. Their health is good and they both do sports very early in the morning. My grandmother does gymnastics with elderly women her age in the park. Both of my grandfathers play basketball in the morning and sometimes they go swimming.

Chinese people eat rice for every meal, but i don’t like rice because i think it is tasteless! we eat meat, fish and vegetables. My family eats noodles and congee. my favorite is noodles.

I often play computer games because i like it so much. I often watch Japanese cartoon movies with my parents on the weekends. On long holidays we take trips, too.

That is my description of typical family life in china.

[中国的家庭生活英语作文

Attention please, everyone,

Our class will go to have a physical examination in Peoples Hospital on Saturday, 10th May. Well meet at the hospital gate at 7:45.. It is not far from our school. Its about fifteen minutes walk.You may either walk there or go there by bicycle.

The examination will begin at 8:00. We are not allowed to eat or drink anything before the examination. Keep quiet there and listen to the doctors and nurses. After the examination you may go home.

If I were a boy again, I would practice perseverance more often, and never

give up a thing because it was or inconvenient. if we want light, we must

conquer darkness. perseverance can sometimes equal genius in its results. “there

are only two creatures,” says a proverb, “who can surmount the pyramids—the

eagle and the snail.”

if i were a boy again, I would school myself into a habit of attention; i

would let nothing come between me and the subject in hand. i would remember that

a good skater never tries to skate in two directions at once.the habit of

attention becomes part of our life, if we begin early enough. i often hear grown

up people say “ i could not fix my attention on the sermon or book, although I

wished to do so” , and the reason is, the habit was not formed in youth.

if I were to live my life over again, I would pay more attention to the

cultivation of the memory. I would strengthen that faculty by every possible

means, and on every possible occasion. it takes a little hard work at first to

remember things accurately; but memory soon helps itself, and gives very little

trouble. it only needs early cultivation to become a power.

Human, science and nature, the three phase was quoted rates are inseparable. The wonders of nature, a little thing, through the baptism of the time, and meticulous observation, often can give a person with enlightenment.

Vast forests, sunshine give plants grace, to be able to get the nutrients and thrive. Such as the morning sun open the eyes of animals, everything is ready. Squirrels, squirrel, embarks from the house, looking for full sweet red pine nuts, all kinds of plant seeds and slowly by seeding them to other places. While the weasel feed on smaller herbivores, sable and then ate the weasel... As if people eat the big fish, big fish eat small fish, small fish eat shrimp, shrimp eat plankton, interlocking between RACES, interdependence restricts each other.

Foreign scientists have done an experiment: introduce the sheep in a rare nature reserve, where the bamiyan, natural environment is superior, and there is special personnel to the group of kids to their natural enemies, Wolf, moved to another place. So the sheep started in the breeding. Until grass and low shrubs are eaten, the number of sheep instead of less. Because they live too comfortable, there is no enemy attack, the number that is too carefree life let their constitution also fell. Then the scientists tried to introduce wolves again. The result is in the relationship between predator and prey, good robust species to survive, wolves eat sick defect part. Natural selection and evolution, has been the nature and even the survival of human society the same criteria.

Cut down some trees, is to destroy a part of birds and insects; Killing of bees, small fish, can also cause cannot spread pollen, fish cannot reproduce problem... Sabotaged a part of the food chain, will bring ill-defined disaster. Because in front of the natural fair, each species, each independent individual organisms is so beautiful and full of value.

Because of the diversity of species and colorful nature. Want to live in harmony with her and get the kind of treatment, will be good to nature, to understand the nature, and have good at discovering and innovative mind.

人类、科学、自然，这三者相生相息密不可分。大自然的奇妙之处在于：一件小小的事物，经过时间的洗礼以及细致入微的观察，往往能给人以启示。

广袤的森林中，阳光雨露给予植物恩泽，使其能够得到养料然后茁壮成长。等清晨的阳光掀开动物们的眼睛，一切也准备好了。松鼠、灰鼠从居所里出发，寻找饱满香甜的红松子，各种植物的种子于是慢慢的被他们带到其他的地方落地生根。而此时黄鼠狼以体型较小的草食动物为食，紫貂继而吃掉了黄鼠狼……就好像人吃大鱼，大鱼吃小鱼，小鱼吃虾米，虾米又吃浮游生物一样，各种族之间环环相扣，相互依存相互制约着。

外国的科学家曾做过一个实验：将一种稀有的羊引进自然保护区，那里水草丰美，自然环境优越，并且还有专门的人员为这群天之骄子将她们的天敌——狼，迁往另外的地方。于是羊群开始在此生息繁衍。直到草和低矮的灌木被吃光了，羊群的数量反而越来越少。原来是因为它们生活的太过安逸，没有天敌进犯，数量过于膨胀，太过悠闲的生活让它们的体质也下降了。后来科学家们尝试着再一次引进狼群。结果是在捕食者与猎物的关系中，健壮优良的品种得以存活，狼群则吃掉病弱残疾的部分。物竞天择，优胜劣汰，一直都是自然界乃至人类社会不变的生存准则。

砍掉了某种树林，就等于灭绝了一部分鸟类、昆虫;捕杀蜜蜂、幼小鱼类，也会造成花粉无法传播，鱼群无法繁衍的问题……大肆破坏生物链中的某一环，都会带来难以言说的灾难。因为在公平的自然面前，每个物种，每个独立的生物个体都是如此的美丽而富有价值。

大自然因为物种的多样性而五彩缤纷。想要与她和谐相处并得到其慈祥的对待，就要善待自然，了解自然，并拥有一刻善于发现与创新的心。

导语：从小养成好习惯，不在路上玩游戏，行走应走人行道，没有行道往右靠，天桥地道横行道，横穿马路离不了，下面是yuwenmi小编为大家整理的优秀英语作文，欢迎阅读与借鉴，谢谢!

There is no doubt that traffic congestion becomes a growing worry for the residents of most urban areas. Some major roads are regularly choked with traffic in rush hours. The limited transport capacity contributes largely to the vexing problem. How to solve the headache?

The existing solutions to traffic jam mainly aims at creating metro bus systems and broadening major roads. Widening the existing roads can solve traffic snarls on some level. Soaring car ownership compounds the chronic annoying problem, so we must sharply reduce the heavy reliance on cars and drive a shift to the mass transportation. It is a cheap and good way. We can create a system of customized bus routes and highlight the development of subways, trolleys and light rail. The effective combination of these solutions will enable the urban areas to possess a smooth traffic.

【参考译文】

毫无疑问，交通堵塞成为大多数城市居民日益担心的问题。一些主要道路在交通高峰时经常堵塞。有限的运输能力在很大程度上造成了令人烦恼的问题。如何解决头痛?

现有的交通堵塞解决方案主要是建立地铁公交系统和拓宽主要道路。拓宽现有道路，可以在一定程度上解决交通挤塞。飞涨的汽车拥有权构成了长期困扰的问题，所以我们必须大幅减少对汽车的依赖，推动大众运输的发展。这是一个便宜又好的方法。我们可以建立一个系统的定制巴士路线，并突出发展的地铁，手推车和轻轨。这些解决方案的有效结合将使城市地区拥有顺畅的交通。

i am a girl who likes thinking alone. i have a nice dream. it"s colourful

like a rainbow.

the dream is about my life in the future. i hope my house can be on an

island with many coconuts.

there are at least ten large rooms in the house. my house also has a

balcony and a garage. i have no orchard but i have a wonderful garden.

there is a fence around my garden. i would like to grow some flowers in it,

like tulips, roses, cannas, morning glories and orchids. i think when spring

comes, there will be many butterflies and bees. in the north of my garden,

there"s a small pond. many goldfish, a few ducks, geese and turtles will live in

it. they are lovely!

there is a lot of happiness in my dream house. do you think so? if so,

please make friends with me quickly. i will tell you more!

Smoke has something for people in poor health, nicotine.

Nicotine in a cigarette can kill a mouse, 25 g of nicotine in cigarettes can kill a few cows, 40 to 60 mg of pure nicotine can kill a person.

The dangers of nicotine is also quite big, it can cause stomach or other stomach disease; Also can make the person causes heart disease cause rhythm of the heart is not straight; The outbreak of serious still can cause cancer.

Cigarettes are hidden in the invisible killer, around us are all should be vigilant.

According to scientists, the chemical composition of tobacco contains hundreds of complex, most harmful to human body, including tar, nicotine, phenols, alcohols, acids, aldehyde is 40 kinds of toxic and carcinogenic substance. Smoke after the fire, smoke, contains the chemical composition of tobacco in all, at the same time than the tobacco itself and added some harmful substances, such as carbon monoxide, tobacco tar and so on. This is because in addition to the tobacco itself, in the process of cigarette made, to add some cocoa in raw materials, liquorice, sugar, glycerin, such as ethylene glycol, moist, taste fragrance and combustion-supporting material. Although these additive itself is harmless, but changed in the process of combustion. For example, in the back of the rat with cocoa after burning smoke oil, can grow skin tumor. Glycyrrhizic acid in glycyrrhiza after burning, with other ingredients, can generate have carcinogenic polycyclic aromatic hydrocarbons. Sugar increased after combustion with tobacco tar, and the product of sugar after combustion is an important carcinogens in tobacco. Glycerin and glycol after the burning of the material, not only can make smokers bladder cancer, and the acrolein inhibits the trachea and cilia secretion from the lungs, thereby increase the chances of suffering from bronchitis and emphysema, and make people with both became seriously ill.

Smoke harm to people is how great! So we cant smoke. Stop smoking, the benefit of future generations.

烟里有一种对人身体不好的东西——尼古丁。

一枝香烟中的尼古丁可以毒死一只小白鼠，25g的香烟里的尼古丁可 毒死几头牛，40至60毫克纯尼古丁可以毒死一个人。

尼古丁的危害也是相当的大，它可以引起胃痛或其它胃病;还会使人引起心律不正诱发心脏病;严重的还可能引起癌症的爆发。

香烟是隐藏在我们身边的隐形杀手，是大家所应警惕的。

据科学家测定，烟草中含有数百种复杂的化学成分，大部分对人体有害，其中焦油、尼古丁、酚类、醇类、酸类、醛类等40种是有毒和有致癌作用的物质。烟在点燃后，所产生的烟雾，包含了烟草中所有的化学成分，同时比烟草本身又增加了一些有害物质，如一氧化碳和烟焦油等。这是因为除烟草本身外，在制成卷烟的过程中，要在原料中加入一些可可、甘草、糖、甘油、乙二醇等调味、湿润、产香、助燃物质。这些添加剂虽然本身无害，但在燃烧过程中却起了变化。例如，在鼠背涂上可可燃烧后产生的烟油，可长出皮肤瘤。甘草中的甘草酸在燃烧后，与其他成分化合，可生成有致癌作用的多环芳烃。糖与烟草一起燃烧后增加了焦油量，而糖燃烧后的产物是烟中的一个重要致癌物。甘油和乙二醇在燃烧后的物质，不但可能使吸烟者患膀胱癌，而且所产生的丙烯醛可抑制气管和纤毛分泌物从肺内排出，从而增加患气管炎和肺气肿的机会，并使患有这两种病的人病情加重。

烟对人的危害是多么大啊!所以我们不能吸烟。杜绝吸烟，造福后人。