新人自我介绍注意事项6篇 作文英语通用20篇

一、议论文的三要素

(一)论点：是作者对所论述问题的见解和主张，是议论文的灵魂。

1、议论文一般只有一个中心论点，有的议论文还围绕中心论点提出几个分论点，分论点是用来补充或证明中心论点的，只要研究这些论点的关系，就可以分出主从。

2.如何找中心论点。论点应该是明确的判断，是作者看法的完整陈述，在形式上应该是完整的句子。可采用关键词法查找论点，首先阅读给定的话题材料，从中寻找关键词汇，可以是出现频率最高的也可以是重点描绘的。在找到关键词会后，尝试发现所列出的关键词之间是否存在联系，进而进行引申。

(二)论据： 论据可以分多种类别，需要日常进行积累

1.事实论据：事实在议论文中论据作用十分明显，分析事实，看出道理，检验它与文章点在逻辑上是否一致。 2.道理论据：作为论据的道理总是读者比较熟悉的，或者是为社会普遍承认的，它们是对大量事实抽象，概括的结果。

(三)论证： 议论文中的论点和论据是通过论证组织起来的。论证是运用论 据来证明论点的过程和方法，是论点和论据之间的罗辑关系纽带。论点是解决“需要证明什么，”论据是解决“用什么来证明”，论证是解决“怎样证明”。 论证方法有以下几种： 1.举例论证：列举确凿、充分，有代表性的事例证明论点; 2.道理论证：用马列主义经典著作中的精辟见解，古今中外名人的名言警句以及人们公认的定理公式等来证明论点; 3.对比论证：拿正反西方面的论点或论据作对比，在对比中证明论点; 4.比喻论证：用人们熟知的事物作比喻来证明论点。此外，在驳论中，往往还采用“以尔之矛，攻尔之盾”的批驳 方法和“归谬法”。在多数议论文中往往是综合运用的。

二、议论文结构

1.基本结构是提出问题(引论)--分析问题(本论)--解决问题(结论)。

2.可分两大类 a.纵式：逐层深入的论述结构

例1.“层层深入”式，先提出论点后，先从消极方面论证，然后进一步从积极方面论述，如《怀疑与学问》。

例2.“起录转合”式：开头破题，引出论述问题;接着承接开头，阐述所论述的问题;“转”是双各个角度证明论点;最后归结，就是“合”。

b.横式：并列展开的论述结构 例如： 有“总论——分论——总论”式，先提出论点，而后从几个方面阐述，最后总结归纳; 有“总论——分论”式，先提出论点，然后从几个方面论证。 有“分论——总论”式，对所要论述的总是分几个方面剖析，然后综合归纳出结论。 总之，分析议论文的结构，先要弄明白中段落层次间的内在联系，还要注意文章中起着承上启下作用的过渡段，过渡句以及过渡词语。

导语：春节是中国最重要的传统节日;你会跟外国朋友怎么介绍呢?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!

Dear Mike,

How are you? Im really glad that you are interested in traditional Chinese festivals. There are many traditional festivals in China, such as Spring Festival, Mid-Autumn Day and so on. Id like to introduce the Spring Festival to you. Spring Festival is the most important traditional holiday in China. It usually lasts for 15 days。

Days before the festival, people clean their houses. They think cleaning sweeps any bad luck. They decorate their houses with paper cuts. On the eve of the festival, family members get together and have big meals. Then they watch the Spring Festival Gala on TV. At midnight, they set off fireworks to welcome the New Year. During the festival, kids get lucky money from old people. People visit their relatives and friends. They wish each a happy year and good luck. How happy we are。

Best wishes!

Yours,

Liu Wei

【参考译文】：

亲爱的迈克，

你好吗?我真的很高兴你对中国传统节日感兴趣。中国有许多传统节日，如春节、中秋节等。我想向你介绍春节。春节是中国最重要的传统节日。通常持续15天。

节日前几天，人们打扫房屋。他们认为打扫扫除坏运气。他们用剪纸装饰房屋。在节日前夕，家庭成员聚在一起吃大餐。然后他们在电视上看春节联欢晚会。午夜，他们燃放烟花迎接新年。节日期间，孩子们从老人那里得到压岁钱。人们拜访他们的亲戚和朋友。祝每一年快乐，好运。我们是多么幸福。

最美好的祝福!

你的好朋友，

刘薇

导语：八一建军节诞生于1933年，她的第一个节日庆祝活动，是在中央苏区首府——江西瑞金举行的。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!

It is the Army Day of the Chinese Peoples Liberation Army on August 1. It stems from the August 1 Nanchang Uprising which the Chinese Party members lead of revolutionary period of the peoples mainly main justice in China. The August 1 Nanchang Uprising for will it be August 1 1927 fire Communist Party of China arms resist the Kuomintang first rifle of reactionaries indicate China enters the Communist Party of China and leads the new period for revolution of arms independently mark the birth of the new peoples army of China.

Will it be July 1933 the republic temporary central government Soviet of Chinese determine to be tenable on commemoration day for the Chinese Workers and Peasants Red Army (the predecessor of the Chinese Peoples Liberation Army ) on August 1. From then on August 1 became the Army Day of the Chinese Peoples Liberation Army. During Army Day will concentrate on launching the activity of " support the army and give preferential treatment to the families of the armymen and martyrs support the government and cherish the people " all over China commemorate the birth of the peoples army.

Since the Chinese Peoples Liberation Army built up the Army goes through the innumerable hazards and hardships from small to large change from weak to strong develop into an army with synthetic multi-arm is advancing on the roads of the picked troops with Chinese characteristics courageously become the great wall of steel that China defends the peace and development.

【参考译文】

它是八月一日中国人民解放军的一天。它源于八月一日南昌起义，中国共产党领导的革命时期，人民的主要正义在中国。的八一南昌起义为将它是8月1 1927年，火共产党中国武器抵抗国民党反动派的第一枪，表明中国进入的中国共产党，领导新时期革命武装独立，标记的中国新型人民军队的诞生。

1933年7月，该共和国临时中央政府，中国苏维埃，确定以成立纪念日为中国工人和农民红军(前身中国人民解放军)8月1日。从那时起，八月一日成了中国人民解放军的一天。建军节期间，将集中开展“活动支持军队和优待军人、烈士家属，政府支持和珍惜的人”都在中国，纪念人民军队的诞生。

自从中国人民解放军建造的军队，去通过无数的危险和困难，从小型到大型，改变从弱到强，发展成军合成多臂，是推进中国特色勇敢精兵道路，成成为的钢铁长城，中国维护和平与发展。

1.有关建军节的英语作文

2.八一建军节的英语介绍

3.建军节的英语作文

4.八一建军节的英语作文

5.建军节英语作文带翻译

6.以建军节为话题的英语作文

7.建军节英语作文3篇带翻译

Hello,every one!（大家好）My name is **** . （我叫****）

Im a 15 years old girl. （我是一个15岁的女孩）（具体情况自己改）

I live in the beautiful city of Rizhao.（我住在美丽的Rizhao城）（你可以把Rizhao改成自己家乡的城市的名称的拼音）

Im an active ,lovely and clever girl.(我是一个活跃的可爱的聪明的女孩）

In the school , my favourite subject is maths . （在学校，我最喜欢数学）

Perhaps someone thinks its difficult to study well .（也许有些人认为这很难学）

But I like it.（但我喜欢他）

I belive that if you try your best, everything can be done well.（我相信每件事付出努力就会有害结果）

I also like sports very much.（我也很喜欢运动）

Such as,running,volleyball and so on. （像跑步、排球等等）

If you need help ,please come to me .（如果你需要帮助，就来找我）

I hope we can be good friends!（我希望我们能成为好朋友）

I am a third year master major in automation at Shanghai Jiao Tong

University, P. R. China. With tremendous interest in Industrial Engineering, I

am writing to apply for acceptance into your Ph.D. graduate program.

Education background

In 1995, I entered the Nanjing University of Science & Technology

(NUST) -- widely considered one of the China’s best engineering schools. During

the following undergraduate study, my academic records kept distinguished among

the whole department. I was granted First Class Prize every semester,In 1999, I

got the privilege to enter the graduate program waived of the admission

test.

At the period of my graduate study, my overall GPA(3.77/4.0) ranked top 5%

in the department. In the second semester, I became teacher assistant that is

given to talented and matured students only. This year, I won the Acer

Scholarship as the one and only candidate in my department, which is the

ultimate accolade for distinguished students endowed by my university.

Presently, I am preparing my graduation thesis and trying for the honor of

Excellent Graduation Thesis.

Research experience and academic activity

When a sophomore, I joined the Association of AI Enthusiast and began to

narrow down my interest for my future research. With the tool of OpenGL and

Matlab, I designed a simulation program for transportation scheduling system. It

is now widely used by different research groups in NUST. I assumed and fulfilled

a sewage analysis & dispose project for Nanjing sewage treatment plant. This

was my first practice to convert a laboratory idea to a commercial product.

In retrospect, I find myself standing on a solid basis in both theory and

experience, which has prepared me for the Ph.D. program. My future research

interests include: Network Scheduling Problem, Heuristic Algorithm research

(especially in GA and Neural network), Supply chain network research, Hybrid

system performance analysis with Petri nets and Data Mining.

Good morning. I am glad to be here for this interview. First let me introduce myself. My name is Youtheme， 24. I come from GuangZhou，the capital of GuangDong Province. I graduated from the ****** department of *****University in July ，2001.In the past two years I have been prepareing for the postgraduate examination while I have been teaching *****in NO.****middle School and I was a head-teacher of a class in junior grade two.Now all my hard work has got a result since I have a chance to be interview by you.

I am open-minded ，quick in thought and very fond of history.In my spare time，I have broad interests like many other youngers.I like reading books， especially those about ****.Frequently I exchange with other people by making comments in the forum on line.In addition ，during my college years，I was once a Net-bar technician.So， I have a comparative good command of network application.I am able to operate the computer well.I am skillful in searching for information in Internet.I am a football fan for years.Italian team is my favorite.Anyway，I feel great pity for our country’s team.

I always believe that one will easily lag behind unless he keeps on learning .Of course， if I am given a chance to study ****** in this famous University，I will stare no effort to master a good command of advance ******

dear eric,

My hometown is beautiful place It stands near a wide river at the foot of low green hills. It has many tall buildings and wide streets. There are trees and flowers everywhere.

But it has not always been like that. In the old days, it was a sad dirty little town. Landlords and merchants lived in the few good houses. For the working people there were only dark, unhealthy rooms in old buildings and huts in narrow muddy streets. Nearly everyone was poor and many had no work.

Everything has changed since liberation. The people, led by the Party, have got rid of the mud and dirt. They have put up schools, theaters, shops and flats. They have an assembly hall and a hospital. Along the river they have built offices, hotels and parks. A lot of factories have sprung up. On the river, streamers and boats come and go busily, day and night. They carry the products of our industries to all parts of the country.

I love my hometown, and I love its people. They also have changed. Healthy and happy, they are going all out to build socialism.

I have many friends. but my best friends is tom.he is 12 years old.he has short black hair.he is talktive.he is in grade 6 class 6. we are in both class. he likes palying football.we often playing football after school.we are best friends.

it was a sun day of the summer holiday. the weather was hot. my little brother and i decided to go to the resrvoir to swim by bike. it took us half an hour when we got there, many people were swimming. the we dived into the water……

about an hour later, suddenly somebody called: “help! help!” we were surprised to see a boy struggling in the deep water. as quickly as possible. we swam towards him and pulled him to the shore. he lost his consciousness. we sent him to the nearest hospital at once luckily, he was saved.

in the end, we were worn out, but felt happy. that day was meaningful. we did a good deed!

Goodafternoon, teachers! Today, I`m very happy to make a speech here. Now, let me introduce myself.

My name is ZhuRuijie. My English name is Molly. I`m 12. I come from Class1 Grade 6 of TongPu No.2 Primary School. I`m an active girl. I like playing basketball. Because I think it`s very interesting. I`d like to eat potatoes. They`re tasty. My favourite colour is green. And I like math best. It`s fun. On weekend, I like reading books in my room. I have a happy family.

My father is tall and strong.My mother is hard-working and tall, too. My brother is smart. And I`m a good student. My dream is to be a teacher, because I want to help the poor children in the future. Thank you for listening! Please remember me!

这就是我(This is me)

Hello, everybody! My name is Michael. Im a happy boy. Because I laugh everyday. I have a big family. There are three people in my family, my mother, my father and I. My parents are managers and Im a student. I study in Grade Seven, Class Eleven, Dongzhou Middle School. Its a nice place. There are many students in my class. I have a good teacher, Miss Jiang. My favorite lessons are English and Math. I like dogs very much. I have only one dog. Its name is Doudou. Its a pretty dog.

Oh, I forgot to tell you something about my old friend. His name is Tad. His hobby is playing basketball. So he is taller and stronger than I. He has two big eyes and long hair. He is my best friend.

This is me, a happy boy!

文章的开头是有抛砖引玉的效果的。不但要话语简单，而且还得能引出下文。以小编的经验，犹抱琵琶半遮面的效果是最好的。比如写人，“如果有人问我最敬佩的人是谁?那我肯定毫不犹豫的回答——____”既概括了文章主题，又引出下文。

文章的内容主要是写过程，原因，越丰富越详细越好。内容的丰富程度主要是篇幅的长短，文章不可以写太短。内容丰富但不要啰嗦，尽可能的把事件写的生动活泼，富有情感。

文章的结尾是画龙点睛之笔!文章的灵魂就是在这里。我们写的作文结尾大多数都要求首尾呼应。意思就是重复一下开头表达的意思，然后在发表点自己的想法。这样就是一个完美的结尾了。

当写完之后，一定要从头到尾的看一遍。是否语句通畅。不管写的再好，如果语句不通畅，让人家看的一头雾水，辛苦会打折扣。错别字也是很令人不舒服的，就像衣服上的补丁，总是那么的显眼。

"I now declare the rules of the game: a man hides a few things, and a few others go and hide them," said the town. We drew a lot and finally decided to hide three coke bottle caps from our cousin. The cousin pushed us out of the room and hid things by herself... After a while, the cousin came out with a smile and said, "hide it, you cant find it!" We swarmed in, and I thought: the easiest place to hide is probably the most secluded place. So, I will seriously every corner to find it again, did not, in the look at the kid sister, drill under the bed, their tails on the outside, groping hands in it, no, she just want to stand up, "alas!" The little sister cried, and she cried, and she stood up under the bed and hit the bed.

So she stopped the game. Ah! One less opponent, but the cousin is also difficult to deal with, see her in the closet to each piece of clothing to turn over, wow! Not yet! But where exactly? I glanced around, and then I noticed a shiny object behind the curtain.

I pulled the curtain aside. Coke bottle caps! I was happy to jump three feet high, my cousin saw, a look of unconvinced. But shes picking up speed. Look for it here. I made haste, and under the bed and then watch out of the reach of little younger sister, and I found a coke bottle caps, my heart even more excited to get up, then I have found in a book under the last bottle. "Shout! It took me a lot of work! I sighed and said, my cousin, my cousin and my sister are all happy for me. The cousin said, "you are very observant!" I heard it, I was very happy.

My name is Liu * * *. Because of the name, I used to call myself "the queen of stars" on the internet". Do not think that I am too arrogant, because the stars themselves are ordinary and shining, so I like them. Of course, I wish I could be one of many stars. If one day you meet a girl called star dance on the Internet, it must be me -- 11 years old, monkey, virgo......

Of course, I have with the stars very ordinary appearance: big eyes, but very bright; neither tall nor short nose; not too big or too small mouth; white skin, a not too long or too short tail pigtail, high up in the back of my head, flash flash, very naughty...... (but my mother cut my hair short now)

I have a wide range of hobbies, such as music, microcomputer, Mathematical Olympiad, english...... Well, theres one more thing you cant think of! Let me tell you, its cosmic exploration - Stonehenge, crop circles, aliens, for example...... In a word, I like everything that is unknown.

I particularly like music, since I was 6 years old, I began play the piano, less than nine years old, I was out of the piano six. When I played Mendelsohns "Venice Barcarolle", I feel like being in a ripple on the surface of the boat, the silence, the moonlight shines down, like scattered on the surface of mercury, flash, beautiful......

I also played the love guitar. I took two lessons and I started to play chords. I have learned many beautiful songs such as "years ago", "walking", "Red River Valley", "childhood" and so on......

You ask me why I love music so much, but I dont know. But when I was in the music melody, I felt great enjoyment.

I also like the Olympic math because it can develop my intelligence and keep my head spinning. A difficult problem is like a castle, although it is difficult to overcome, but as long as I use my head, you can feel the joy of success.

Of course, the United States must have shortcomings, my shortcomings is very sloppy, looking for something at home every day, today wearing a watch, tomorrow will not find it, what things are everywhere. Oh! My family cant help me. Dont look at me. Im careless in life. But I dont do it carelessly. I can check every question carefully. However, when occasionally careless, like what I do, because not carefully, the paper clearly requires simplification, but I made for the ratio! Miserable, dizzy, faint! Because of this, the teacher gave me 4 points. After several lessons, I must correct this bad habit in the future. The ox is not blowing! Trust me!

What exactly does it look like to me? In the future there will be three years to verify. I really really want to be the North Star - the brightest star in the sky, of course, and it takes a lot of effort. I hope that in the next three years, I can get along well with my teachers and classmates and break through the difficulties with my teachers and classmates!

导语：说起新疆，你想到的是什么?下面是yuwenmi小编为大家整理的优秀作文，欢迎阅读与借鉴，谢谢!

Turpan is located in a depression with the area of more than 1000 square kilometers of the eastern part of Xinjiang and some 80 meters below the sea level. And nearby the Moon Lake， or Eding Lake in local language， the lowest water surface is 154 meters below the sea level， the second lowest continental point in the world after the Dead Sea. Turpan is called the Land of Fire， which was derived from the intense summer temperature， the highest ever recorded was 47.5oC and in summer the ground surface temperature is about 70oC. The Depression is characterized by high temperature and rare perspiration， so it is hot but it is not wet， during summer， although it is extremely hot， the streets are full of people.

The water from the surrounding mountains and underflow nourishes the depression. And the local people developed a unique irrigation system: ”Karez”， by which water is introduced to the agricultural oasis surrounded by desert. Turpan is famous for its grapes produce. Once in Turpan Depression， one has a feeling that as if he was in a land of grapes， The Grape Gauge， about 8 kilometers in length， is one with grapevines grown on the slopes of the both sides， and deep into the Gauge， there is a tourist resort， shaded by grapevines and from late June to early October， clusters of grapes hanging overhead and the mineral water flowing from under the rocks make the resort a great attraction. In fact， the city proper itself is one that is surrounded or covered by grapevines. Many streets themselves are vineyards or trellises with grapevines， together with the fruit stands the whole city is a mixture of the fruit orchard and market， since 1990， the Grape festival held in the city becomes a great attraction not only to business people， but people from all over the world.

In history， Turpan was the capital of ancient Gaochang Kingdom (from the sixth century) and later the administration residence of Xizhou. It was a very important juncture on the Silk Road through which the western cultures and Chinese culture encountered and crashed and exchanged. A great many historical sites and cultural relics have remained. And the city is known as a “natural museum of man and culture.

The major tour sites of the area of the Northern Part of South Xijiang centered by Turpan: the Flaming Mountains， the Moon Lake， Grape Gouge， Karez System， the Ruins of ancient City of Jiaohe， the ruins of ancient City of Gaochang， Bezeklik Thousand Buddha Caves， Emin Minaret， Astan-Kharakhoja Tombs， Sand Dune Park， the Sand Plant Park.

I have a happy family, I grow up happily at home. Let me introduce my family members!

The first one to come on is my mother. My mother was a little fat, with a red face, a pair of curved eyebrows, a pair of bright eyes, a black hair, very beautiful. She likes comedies and surfing the Internet most.

My father is tall, with a high nose and a beard. Dad works a bit busy, but he still takes time to play with me.

Next, its me! Im not too tall and I have a ponytail. I like reading and playing.

This is my family, living a happy life every day!

Animals are the best friends of man who can all care for them? I am a favorite little animal, small animals are cute and naughty, like a naughty child.

I like the puppy, the puppy is very cute. I used to have a name: snow and snow to listen to the name to know is a lovely little dog, its hair like snow as white, with a pair of round black eyes, two ears in the head. Cute, but snow is also very naughty, then Ill tell you its naughty it!

One afternoon I came home from school, snow and snow as usual to pick me up, I and it walked on the stairs, to the stairs, it saw my hand bag, all of a sudden bite in the past, I chased it, while chasing Cried: "Snow snow to my bag back, hurry or else I want to teach you." Snow seems to understand, so obediently ran back, hand over the bag. Rub me a bit like me in the request of my understanding, I touched it, and it returned home.

Snow is very cute and very naughty. But I and it is a good friend, I like it snow snow.

I am xx.  I was born in xx.  I graduate from senior high school and major in English.  I started learning English since I was 12 years old.  My parents have a lot of American friends.  That’s why I have no problem communicating with Americans or others by speaking English.

In my spare time, I like to do anything relating to English such as listening to English songs, watching English movies or TV programs, or even attending the activities held by some English clubs or institutes.  I used to go abroad for a short- term English study.  During that time, I learned a lot of daily life English and saw a lot of different things.

I think language is very interesting.  I could express one substanceby using different sounds.  So I wish I could study and read more English literatures and enlarge my knowledge.

My favorite animal is dog, my family has a puppy. His name is wangwang, he that is yellow, is really beautiful. He has a pair of bright eyes sparkly.

His two big ears perked up really high like a birds wing, but air. Sometimes also shake his tail to show your tongue with me, where I went with it, really like a small heels. I patted him on the head, it is licking my fingers, I feel itchy. Lovely!

But he has time, low head, let me feel very strange, but I dou dou it his mood suddenly. This is my dog barked. It is very cute!

以下是由语文迷网小精心整理提供的关于高考的英语写作技巧，一起来看看吧。

一、要善于模仿

一些同学的办法往往是背一堆范文，然后再到考场上进行一个“剪切”、“粘贴”的工作，真正的模仿重点永远要放在一定的句式结构上，而非个别的词汇。有一个句式说：“…for the simple reason that…”表示某种现象的原因是什么，用在高考(课程)写作中，我们就可以拿来解释为什么自行车在中国如此的流行：“The bicycle is very popular in China for the simple reason that…”。然而，很多同学一谈到原因仍然是“…because…”。如果要表示“总是能够”的概念，很多同学提笔就会写can always，但理想的句子应该是用双重否定表示强烈的肯定，用never fail to。

二、要灵活变通

在批改过上万份同学们英语(课程)作文中，经常能发现一些将中文生硬地翻译成英文的表达法。有一句话叫做“立志如山，行道如水”，写英文作文，一定要有决心把它写好，有信心把意思表达清楚，这是“立志如山”;但关键是遇到问题时要有个灵活的态度，能像流水一样变通解决问题。有个翻译界的故事说：在某大型国际会议的招待会上，一道菜是用鸡蛋做的。与会的客人问翻译：“What is it made of”本来是非常简单的一个问题，结果翻译太紧张，忘了“egg”这个词，但是他急中生智，回答：“It is made of Miss Hen’s son.”这里，就是一个灵活变通的范例。绕道表达，是写作中应该常常运用的一种方法。

三、要细心观察

注意英语中一些表达上的习惯。比如在正式文体的写作中，很少用 “it isn’t”这样的略缩形式，而往往是一板一眼地写作 “it is not”。同理，在正式文体中的日期一般不缩写，阿拉伯数字一般会用英文表达(特别长的数字除外)。

许多同学在写作文时，习惯于把 “since” “because” “for”这样的词放在句首引导原因状语从句。事实上，在我们见到的英语报刊杂志文章中，这样的从句一般都是放在主句之后的。另外, “and”也常常被误放在一句话的开头，表示两个句子之间的并列或递进关系。其实，经常留心地道的英语文章能发现，如果是并列关系，完全可以不用连词;如果是递进关系，用 “furthermore” “what is more”更为普遍。

四、要心有全局

英文写作如果结构意识良好，应试写作就简化成为一个填空的过程了，适当地填入观点、素材，文章就自然而然立起来了。

临考在即，同学们要牢记英语写作的基本要领，特编顺口溜如下：细审题，巧构思，列要点，防遗漏。写日记，同汉语;书信，通知格式要牢记。看清图表细梳理，写人记事按顺序;完稿后查遗漏，整洁干净莫忘记。

美国是世界上最发达的国家，对于美国，你的了解有多少?下面，是小编为你整理的有关介绍美国的英语作文，希望对你有帮助! 有关介绍美国的英语作文篇1

Based on historical documents, modern survey and statistics, as well as the result of predecessor studies, the trend and main process of forest dynamics are recognized. The forest area and forest coverage rates for each province of China from 1700 to 1949 are es- timated backward by every 50 years. Linking the result with modern National Forest Inventory data, the spatial-temporal dynamics of Chinese forest in recent 300 years (AD 1700–1998) is quantitatively analyzed. The study shows that in recent 300 years, the forest area in current territory of China has declined by 0.95×108 hm2 (or 9.2% of the coverage rate) in total, with a trend of decrease and recovery. Before the 1960s, there was a trend of accelerated de- scending. The forest area was reduced by 1.66×108 hm2 (or 17% of the coverage rate) in 260 years. While after the 1960s, there has been a rapid increase. The forest area increased by 0.7×108 hm2 (or 8% of the coverage rate) in 40 years. The study also shows that there is a significant spatial difference in the dynamics of forest. The amplitudes of increasing and de- creasing in western China are both smaller than the ones in eastern China. During the rapid declining period from 1700 to 1949, the most serious decrease appeared in the Northeast, the Southwest and the Southeast, where the coverage rate in most provinces dropped over 20%. In Heilongjiang Province, the coverage rate dropped by 50%. In Jilin Province, it dropped by 36%. In Sichuan Province and Chongqing Municipality, it dropped by 42%. In Yunnan Prov- ince, it dropped by 35%. During the recovery period 1949–1998, the western provinces, mu- nicipality and autonomous regions, including Ningxia, Gansu, Inner Mongolia, Si- chuan–Chongqing, Yunnan, Tibet, Xinjiang and Qinghai, etc, the increase rates are all below 5%, while the eastern provinces, municipality and autonomous regions (except Heilongjiang, Hubei, Jiangsu–Shanghai) have achieved an increase over 5%, among which the Guang- dong–Hainan, Guangxi, Anhui, Beijing–Tianjin–Hebei, Shandong, Henan, Zhejiang, and Fu- jian have an increase over 10%. 有关介绍美国的英语作文篇2

A history of long and effortless success can be a dreadful handicap,but,if properly handled,it may become a driving force.When the United States entered just such a glowing period after the end of the Second World War,it had a market eight times larger than any competitor ,giving its industries unparalleled economies of scale.Its scientists were the worlds best,its workers the most skilled.American and Americans were prosperous beyongd the dreams of the Europeans and Asians whose economeics the war had destroyed.

It was inevitable that this primacy should have narrowed as other countries grew richer.Just as inevitably,the retreat from predominace proved painful.By the mid 1980s Americans had found themselves at a losss over their fading industrial competitiveness.Some huge American industries,such as consumer electronics,hand shrunk or vanished in the face of foreign competitiong.By 1987 there was only one American television maker left,Zenith.(Now there is none :Zenith was bought by SouthKoreasLGElectronics in July.)Foreign made cars and textiles were sweeeping into the domestic market.Americas machine-tool industry was on the ropes.For a while it looked as though the makeing of semiconductors,whidh America had invented and which sat at the heart of the new computer age,was going to be the next caualty.

All of this caused a crisis of confidenc.Americans stopped taking prosperity ofr granted .They began to believe that their way of doing business was failing,and that their incomes would therefore shourtly begin to fall as well .The mind -1980s brought one inquiry after another into the causes ofAmericas in dustrial decline.Thir sometimes sensational findings were filled with warnings about the growing competitiong from overseas.

How things have changed!I1995 the United States can look back on five years of solid growth while Japan has been struggling.Few Americans attribute this Self doubt has yielded to blind pride.American industry has changed its structure ,has gone on a diet ,has learnt to be more quik witted,according to Richard Cavanagh,executive dean of Harvards Kennedy School of Government.It makes me proud to be an American just to see how our businesses are improving theirproductivity,says Stephen Moore of the Cato Institute ,a think tank in Washington,DC,And William Sahlman of the Harvard Business School believes that people will look back on this perido as a golden age of business management in the United States.

[2017年有关介绍美国的英语作文