英语作文自我介绍八十字左右最新20篇

Marine biological environment is a complex system including sea water, sea

water, soluble matter and suspended matter, seabed sediments and marine

organisms. The rich biological resources, mineral resources, chemical resources

and power resources in the sea are indispensable human resources treasure

houses, which are closely related to the survival and development of

mankind.

At present, the main objective of marine conservation is to protect marine

biological resources so that they can not be exhausted for sustainable use by

mankind. In particular, priority should be given to the conservation of marine

animals that are valuable and endangered. According to the UN investigation, due

to overfishing, mangrove accidental killing of non target to allow the killing

of marine organisms, the coastal engineering construction, deforestation,

pollution of the marine environment in general, at least 25 of the worlds most

valuable fisheries resources consumed, whales, sea turtles, manatees and many

other marine animal faces the danger of extinction. It is expected that with the

expansion of marine development, it is possible to cause more damage to marine

biological resources.

Marine protection task should first stop on the marine biological resources

excessive use, secondly to protect the marine biological habitat or habitat,

especially their migration, spawning, feeding, avoid Huahai coastline, beaches,

estuaries, coral reefs, to prevent heavy metals, pesticides, oil, organic

produce and eutrophication. Nutrients such as marine pollution. Maintain the

ability of regeneration of marine biological resources and the natural

purification ability of the sea water, maintain the marine ecological balance,

and ensure the sustainable development and utilization of the marine.

Computer is increasingly popular in people’s daily life. The number of

computer in every family is more than TV set. Some people think it is so great

that they all regard it as a gift from the heaven. However, some people consider

it brings more disadvantages than advantages. In my opinion, both opinions are

correct, but if we can use computer in a proper way, its advantages are superior

to disadvantages. I have several reasons.

On the one hand, computer makes human beings’ life become easier. People

can do many things that they can’t do before. They can read newspaper without

buying it, only sitting in front of their computer, clicking mouse to open

website. Shopping online, watching movies, listening music and play computer

games are the common things that people often do by computer. But without

computer, they can’t do all these easily. In addition, computer is also very

helpful for study and work. People can have classes and work on it.

On the other hand, computer has so many attractive things that some people

will be addicted to it. Some of them may busy finding funs on it, and then

ignore their real duty, such as, study and work. As a result, it will have great

bad effect on their future.

To sum, computer has advantages and disadvantages. But if people can

control themselves to use computer properly, it is useful for their whole

life.

The Dragon Boat Festival is a lunar holiday, occurring on the fifth day of the fifth lunar month holiday, occurring on the fifth day of the fifth lunar month

The Chinese Dragon Boat Festival is a significant holiday celebrated in China, and the one with the longest history .

The Dragon Boat Festival is celebrated by boat races in the shape of dragons.

Competing teams row their boats forward to a drumbeat racing to reach the finish end first.

The boat races during the Dragon Boat Festival are traditional customs to attempts to rescue the patriotic poet Chu Yuan.

Chu Yuan drowned on the fifth day of the fifth lunar month in 277 B.C. Chinese citizens now throw bamboo leaves filled with cooked rice into the water.

Therefore the fish could eat the rice rather than the hero poet. This later on turned into the custom of eating tzungtzu and rice dumplings.

Nowadays,there is a increasing number for people to join in the activities

of volunteering.Its well-known that volunteering job is making contribution to

the society with nothing in return.Its like the Leifeng spirit.However,knowing

this,there are still many people would like to devote themseves in this

trend.For instance,the 20__ Beijing Olympic Games has so many volunteers.They

made lots of contribution to the success of opening the Olympics.Moreover,we can

often see that there many students go to geroium to visit the old to bring warm

to the lonely people.Even there are some peoples career is volunteer.They are

ready to help others.Although the volunteers are much more mon,we still need to

thanks them to admire them devoting themseves to the society.

如今，有越来越多的人加入到志愿服务行业。众所周知，志愿者工作是对社会的无私贡献。就像雷锋精神一样。然而，虽然意识到这一点但还是有很多人愿意奉献于这个行业。例如，20__年北京奥运会有这么多的志愿者。他们为奥运会的成功举行做了很多的贡献。此外，我们经常能够看到，有很多学生去敬老院看望老人给他们带去温暖。甚至有些人的职业就是志愿者。他们时刻准备好去帮忙别人。虽然志愿者是越来越常见了，但我们仍然要感谢他们钦佩他们为社会奉献自我。

Nowadays, with the development of technology, the market competition is

fierce and people feel great pressure. In order to improve the working

efficiency, they force themselves to work overtime. However, they are not

machine and need to slow down life pace, or they will break down sooner or

later.

We cant slow down the working hour, but we can control our private time. A

lot of young people mix with working time and private time, so they cant enjoy

their life and feel depressed all the time. The smart person will find the

balance. They will put aside the working stuff when the clock tells them that it

is time to be off work and find the way to release their pressure, such as

KTV.

Spending the time with friends and families is always a good way to enjoy

our time. No matter what kind of difficulties we face, when we recall of these

happy moments, we will have motivation to move on. We cant choose everything we

want, but we can adjust ourselves to the environment and keep the good mood.

Once life pace slows down, we control our life.

My mother is a woman of the old school. She is too conservative to keep up

with the times. However, she is goodnatured and treats others sincerely. For

this reason, all her neighbors are only too glad (pleased) to make friends with

her.

They consider her a model woman.She is a typical housewife. She keeps the

(her) house neat and clean and looks after us with extreme care . She often says

to us, “You cannot study too hard.”

One story about Jack,an Irishman,who was not allowed into Heaven because he was stingy with his money.So he was sent to hell.But down there he played tricks on the Devil (Satan),so he was kicked out of Hell and made to walk the earth forever carrying a lantern.

Well,Irish children made Jacks lanterns on October 31st from a large potato or turnip,hollowed out with the sides having holes and lit by little candles inside.And Irish children would carry them as they went from house to house begging for food for the village Halloween festival that honored the Druid god Muck Olla.The Irish name for these lanterns was "Jack with the lantern" or "Jack of the lantern," abbreviated as " Jack-o-lantern" and now spelled "jack-o-lantern."

The traditional Halloween you can read about in most books was just childrens fun night.Halloween celebrations would start in October in every elementary school.

关于万圣节有这样一个故事.是说有一个叫杰克的爱尔兰人,因为他对钱特别的吝啬,就不允许他进入天堂,而被打入地狱.但是在那里他老是捉弄魔鬼撒旦,所以被踢出地狱,罚他提着灯笼永远在人世里行走.

在十月三十一日爱尔兰的孩子们用土豆和萝卜制作“杰克的灯笼”,他们把中间挖掉、表面上打洞并在里边点上蜡烛.为村里庆祝督伊德神的万圣节,孩子们提着这种灯笼挨家挨户乞讨食物.这种灯笼的爱尔兰名字是“拿灯笼的杰克”或者“杰克的灯笼”,缩写为Jack-o-lantern .

现在你在大多数书里读到的万圣节只是孩子们开心的夜晚.

Before I entered the middle school, I felt so worried about the life in

middle school, because my cousin told me that I would have to compete with so

many excellent students. Now I get used to the life, I learn many subjects from

Monday to Friday. Though I always meet the difficulties in learning the new

knowledge, I get help from my teachers and classmates. I am not afraid of the

middle school life again, I am so excited to learn new things every day. In the

future days, I will meet many challenges, I believe I can get over them. Life in

middle school has happiness and sorrow, they fulfill my life.

What is a good eating habit? In my opinion, a good eating habit is related

to eat healthily and regularly. To say it simply, Xiao Ming has breakfast about

7:30a.m. to 9:00a.m. every morning and lunch at noon. He also has dinner about

6:30p.m. to 7:30p.m in the evening. What he eats is healthy food, such as, meat,

vegetable, fruit, egg, milk and so on. He would not have some snacks for a meal.

He also would not eat and drink too much or eat nothing. Xiao Ming sets a good

example to have a good eating habit.

Sharing bike can be seen in every corner of the street, which is very

popular by the public. The foreigners speak highly of sharing bike, because they

can ride the bikes to look around the city and the expense is very cheap. As

people enjoy the convenience of these bikes, the problem comes. We can see that

many bikes have been broken and some are even put in the main road, which brings

trouble to the public. Of course when the media reported the phenomenon,

everybody condemned the negative behavior. Sharing bikes are public property,

all the people have the responsibility to protect them, so after using them, we

should just find a right place to lock them. The small act can present a

person’s nature, so dont let yourself be the rude one.

With the spread of the consciousness of environmental protection, the word

“low-carbon” has been very popular in life. We can find it in many aspects, such

as low-carbon products, low-carbon consumption, and low-carbon travel and so on.

Generally speaking, more and more people are advocating “low-carbon”

lifestyle.

As implied in the name, “low-carbon” lifestyle is a kind of new pattern of

lifestyle which aims to lowering the carbon dioxide emission in living as much

as possible. For example, some office workers are not proud of driving private

cars from work to home any more but pride themselves on riding or taking public

transportation. In addition, they advocate recycling water and saving energy as

much as they can.

As college students, we also make some contribution in our daily life to

reduce the emission of the carbon dioxide. For example, switch off the light

when leaving and save water. In addition, we should use our knowledge and action

to arouse others’ concern about the importance of lowering emission of carbon

dioxide and lead them to lead a “low-carbon” life.

During the summerVacation, I think I should do something interesting and

meaningful rather than touring. So I found a job at a fast food restaurant and

worked there as a cleaner. I worked eight hours a day for three weeks. This job

was boring and seemed endless, which made me so tired that I nearly stopped it

half way. But, I stuck to it with determination. Every day I started to work

early in the morning and got home late in the evening. Finally, I finished the

job before the new school term. Now, I realize what labor means. I think it is

really a successful experience, which is worth remembering forever.

We now phone really is also very useful, very convenient, no matter the

ends of the earth, can be reached, the letters can be more convenient than

before. It may be said "near", the world we live in on the mobile phone signal

under siege. It has the function of strong, is not a tool and a...

But mobile phones bring us, all is not good, sometimes is bad. Mobile phone

has changed many peoples ideas, it is also restricted the people,

Imagine what the poet tao yuanming described vividly in his "tori picking",

will have a cell phone rings? Li bai in exclamation "bowed their heads and

remembering home", someone will make a phone call for he will be home to have a

look? Must not! And they have lots of classical poems, we are now living in an

age of han han and guo jingming, no one to appreciate those celebrities yake

excellent poems.

Mobile phones has both advantages and disadvantages, we should properly use

cell phone to, can not afford to indulge in a world of mobile phone.

Today is New Years Eve morning, firecrackers sounding snap snap away. As

long as you take a look at the outside, red firecrackers everywhere, come

together to form a Red Sea. The family have their own homes going up in the

beautiful, it seems like in the match. My family is no exception, sweeping,

glass, cabinets, such as rubbing. Prepare the arrival of the New Year.

Afternoon, we posted in accordance with the custom of the Chinese New Year

couplets, father and a good paste, and then said to me: "I paste you posted, I

looked at the high level you say rich, said that if the lower rising good

you ", I asked my father why? Dad said: "The plan is a lucky," "Oh, I

understand," We posted on the Alliance are: evil Hongfu family happy is: wang

gas people to come into everything.

A library is a building for a collection or books, magazines, periodicals

and newspapers. The books are kept on the shelves in the stack room whereas the

magazines, journals, etc. in the reading rooms. Modern libraries also have xerox

rooms, and computer rooms.

If you want to borrow books, you can go to the loan desk, look over the

correct call numbers in the card catalog and ask the librarian to take then, out

for you. Or youre allowed to enter the stack room to rind books for yourself,

you can look up the bound volume or index for the articles relative to the

subject, on which you are going to write thesis. If the library doesnt

subscribe to the magazine which carries the article you want, you can borrow the

magazine from other libraries by means of interlibrary loan service.

Dont forget to show your library card or I.D. card to the librarian before

you go into the reading room, where you can read magazines or newspapers. If you

find a good article and want to keep it, you can have it duplicated in the xerox

room. Besides, if you want to watch films or slides, you can ask the

projectionist to play the videotape for you in the audio visual room, where you

can also listen to language tapes and music tapes.

21st century is the century of technology. Nowadays, technology is

everywhere around us. The development of technology has a significant affact

toward the society. Several technologies that we usually use are the internet,

computer, and cellphone. These new technologies make our life much easier and

better.

First, the development of computer changes our life. Decades ago, people

needed to do lots of complex calculation on hand because they did not have

computer, and more obvious, they did not have the software for calculation. As

the result of that, people spent hours on the equations that a computer can

solve in just a minute. Since the development of computer, people are able to

use some kind of software to compute lots of complex functions and mathematical

calculation. Computer becomes the most helpful equipment for the sciencists

because they can use their time more efficiently.

Also, internet is another useful tool for us today. The development of

internet brings a great impact toward the society. Instead of going to library

and fliping all the books to figure out some information, we can just simply use

a mouse and click on the website to do research. The internet leads us to a

place where we can find unlimited information and resources. It makes our life

much easier and better.

The last technology is cellphone. Nowadays, many people have a cellphone.

But it just appears on the market for about 10 years. It is very convenience to

the users because we can talk to anyone we want with a phone as small as a

wallet. Also, we can communicate with others by making a phone call instead of

sending letters. It is very fast and useful way to communicate.

In conclusion, I believe the development of technology brings significant

impact to our life. It is very helpful to us and I believe technology will keep

improving in future.

Yesterday, after a long meeting in the class, all the students had been

told about the safe issues, then the summerVacationfinally came. All of us

felt so happy and liked a free bird, rushing to home quickly. I had been looking

forward to this holiday for such a long time, I really needed to take some rest

after studying for a semester. I have made some plans for my summer vacation.

First, I wanted to spend some time to stay with my grandparents. I miss them all

the time and they always tell me to visit them when I have the time. My grandma

will cook the delicious food for me. Second, I want to read some books I like,

such as the fiction books. I don’t have much time to read fiction books because

I have to focus on my study. Summer vacation provides the time to adjust

myself.

People always attach the importance to the promise, they hate people who

break their promise. I remember once a time, my friend asked me to go to see the

movie with her, I said yes without hesitation. But on that day, I forgot about

the date, I just woke up late and then played computer games in my bedroom. My

friends called me, she asked why did I disappear, I said I was sleeping at home,

she became very angry, until then did I think about our date. I felt so sorry, I

break my promise for the first time, I realize I did the very bad thing. Even

though I apologized for many times, my friend was still angry with me. I learn

the lesson, promise is very important, we must keep it, other people will see

through our personality to decide what kind of person we are.

It seems like a silly question, anyone in sane would give a hand to the elderly who fell. But in China, this question is becoming tricky. Many news report that there are some old people not just fell, they do it on purpose. Usually, they walk on a crowdy street, and pretend to faint or just lay down on the ground, intend to accuse the one who comes to help as a perpetrator and blackmail him/her for the treatment fee. Many people have fell for that and had to pay as there is no witness to prove their innocence. As for these negative news, people is afraid to help those old people in need, that makes some of them who are in real trouble could not get help in time. I once asked one of my friends: “Why the old people turn bad? If you see one in the street, would you help?” He said: “It is not the old people turn bad, it is the bad people turn old. I will video him/her to make a statement first, then decide if I would help.”

这似乎是个愚蠢的问题,任何清醒的人遇到跌倒的老人都会伸出援助之手。但在中国，这个问题变得棘手。很多新闻报道说有些老人不只是跌倒而已，他们是故意这么做的。通常他们会走到人潮涌动的街头，假装晕倒或者是直接躺在地上，想要指控那些来帮助他的人为肇事者，敲诈他们要治疗费。很多人都上当了，由于没有目击者证明他们的清白，他们被迫支付了费用。正因为这些负面新闻，人们害怕去帮助那些需要帮助的老人，也因此造成了那些真正有困难的老人没有得到及时的帮助。我曾经问我一个朋友：“为什么现在的老人变坏了?如果你在街上看到这样的老人你会帮助吗?”他说：“不是老人变坏了，是坏人变老了。我会先录像让他做一个声明，再决定是否帮助他。”

In the last several decades, our earth has been extremely polluted, such as

air pollution, water pollution, noise pollution and so on. In recent years, the

extreme weather becomes more and more frequent. Winter gets colder and summer

becomes hotter and it rains more frequently. All of these warn us that

protecting the environment is a serious and emergent event. As our general

people, we should build proper lifestyle. We should pay attention to water and

light saving. When we go out, we should firstly choose the public

transportation. The most important is that we must realize that we can do a lot

of things to protect our environment. Its our duty to make our home better.

Let’s change from ourselves.

Depending on personal experience, personality type and emotional concern,

we find that some people hold the idea of living in the country, while others

prefer living in the city. In my opinion, I prefer the city life, though it has

advantages and disadvantages.

First of all, city life is very colorful. City is the center of the

surrounding area. So, it is also the most booming place having the best things.

There are many great things and wonderful activities in the city, while there

isn’t in the country. For example, there are KFC, wonderful shopping mall,

delicious food from various places, dancing club, different kinds of activities

and so on. We can also learn the culture from all the countries. Despite city

life is so wonderful, it still has many disadvantages. Nowadays, with the

improvement of people’s living standard, people have more cars and more people

come to city, and then the city becomes more and more crowd. As a result,

traffic jam emerges, which makes great inconvenience for people to go out.

What’s worse, the air pollution becomes serious day by day, which is bad for

people’s health.

To sum up, every coin has two sides. Living in the city also has good side

and bad aspect. Whether like living in city or not depends on individual

thinking. As myself, I like living in city though I know the disadvantage of

living in city.