7年级英语演讲稿(精彩20篇)

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。

The Internet is becoming more and more important in our daily life. On the net, we can learn news both at home and abroad and all kinds of other information as well. We can also send messages by e-mail, make phone calls, go to net school, read different kinds of books and learn foreign languages by ourselves. Besides, we can enjoy music, watch sports matches and play chess or cards. On the net, we can even do shopping, have a chat with others and make friends with them. In a word, the Internet has made our life more colourful.

My favorite fruit My favorite is lemon fruit. Lemon is not very round, with

a sharp point, is yellow. The Latin species name Citrus limon lemon. Lemon juice

can enhance memory, improve osteoporosis, a beauty effects, and so on. Lemon

juice or beverage preparation of important raw materials and manufacturing

drugs, often Trickle-down lemon juice to remove Westerners eating again. Used

mainly for juice, fruits sometimes used as cooking, but the basic need for

Xiansi because too sour. Fruits containing 5% citric acid were. Containing 501.6

mg per litre lemon juice, vitamin C and citric acid were 49.88 grams. This is my

favorite fruit.

People often say that gold and silver are the most valuable things in the

world.But

I dont think so. In my opinion, to read books is more valuable than

anything else.

The old saying “To open a book is always helpful” clearly tells us how good

it is to read a book.

Books are our friends. They introduce us different kinds of knowledge. They

lead us down the road to success.

Books are our teachers. They teach us troth, science, literature, and

philosophy of life. Besides, they increase our knowledge, enlarge our

experience,strengthen our character and do many other things which we can not do

without them.

Books tell us what is good and what is evil. And only books can tell the

good from the bad.

Therefore to read more books is the best policy for our young students.

I like reading very much. When I was a small girl, I was interested in

reading picture books on science and history. At the age of seven, I entered a

primary school and began to read more books.

Now I am a middle school student. I have many subjects to learn. Every day

I must finish a lot of homework. I am very busy. But when I have spare time I

still want to read some story books. One day my young sister brought me a book

Xl YOU JI.I read the book with great interest. I like Monkey King very much.

Dear friends:

Today I returned to my home. It is so nice to be back. Id like to take this

opportunity to express my heartfelt and sincere thanks for the comfort and

encouragement you gave me during my stay in hospital.

Thanks to the horrible accident, I have begun to treasure what I have now.

It was your love that got me through the tough period. Your cards, flowers and

smiling faces were like a warm fire in the dark freezing winter nights, which

will always spur me on and give me strength.

Once more I would like to say “thank you” to you all.

Yours,

Li Min

My summer vacation life is happy, rich and memorable experience. Because, in the summer vacation with my mother took me to a beautiful environment the universiade cultural park to play ah, elder sister took me to eat roast wing, brother to accompany me to play chess, and young aunt, aunt to accompany me to play CARDS, play chess, I am more than happy!

In this summer holiday, I didnt go to any computer classes. But, do homework, read, self-study "new concept English" are all I have to do every day. Sometimes I will play badminton, cycling, watch TV, play computer, help my mother do some housework within our capabilities. I also see a lot of books, learned a lot of knowledge, also learned a lot of sense.

During the universiade, and I take concrete actions to participate in the volunteer service, to different U standing to participate in and experience different activities, I also to the underground parking lot to promote "green travel". Can still finished the task well, you didnt know it, I will soon find five owners, agreed to stop driving during the universiade, or signature, do not drive me as a small host universiade, I can deliver a large force, how proud I am!

Say so, I this year summer vacation life, compared with the past, is not the same feeling, is not the same wonderful!

我的暑假生活是快乐、丰富而又难忘的。因为，暑假里有妈妈带我去环境优美大运文化园玩呀，姐姐带我去吃烤翅，哥哥陪我下棋、还有小姨和姑姑陪我打牌、下棋呢，我多开心啊!

在这个暑假里，我虽然没有去参加什么兴趣班。但是，写作业、阅读、自学《新概念英语》都是我每天必须做的事情。我有时候也会打羽毛球、骑自行车、看电视、玩电脑、帮妈妈做一些力所能及的家务事。我还看了好多书，学到了好多知识，也懂得了好多道理。

在大运会期间，我以实际行动参与到志愿者服务当中，到不同的U站去参加和体验不同的活动，我还到地下停车场去宣传“绿色出行”。还能出色地完成了任务，你没想到吧，我很快就找到5名车主，同意在大运期间停开、或者不开车的签名，我作为一名大运会的小主人，我能为大运出一份力，我是多么的自豪啊!

所以说，我今年的暑假生活，与往年的相比，确实是不一样的感觉，不一样的精彩啊!

I like to eat fruit because almost all fruits are tasty and good for your

body.I like sweet fruits better than sour fruits.My favourite fruit is hami

melon I think it is the sweetest fruit in the world.

I love hami melons.Theyre sweeter than candy and they smell really good.I

hate lemons because no fruit in the world is sourer than it.Sometimes I like to

eat some grapes,too.But be carefull,sometimes they can be as sweet as hami

melons and sometimes they can be as sour as lemons.

My mammy and daddy like to eat sour fruits and my little brother likes to

eat sweet fruits just like me.Fruit is the most delicious thing in the

world.Fruit,I love you.

Knowledge can be acquired from many sources. These include books, teachers

and practical experience, and each has its own advantages. The knowledge we gain

from books and formal education enables us to learn about things that we have no

opportunity to experience in daily life. We can study all the places in the

world and learn from people we will never meet in our lifetime, just by reading

about them in books. We can also develop our analytical skills and learn how to

view and interpret the world around us in different ways. Furthermore, we can

learn from the past by reading books. In this way, we won’t repeat the mistakes

of others and can build on their achievements.

Practical experience, on the other hand, can give us more useful knowledge.

It is said that one learns best by doing, and I believe that this is true,

whether one is successful or not. In fact, I think making mistakes is the best

way to learn. Moreover, if one wants to make new advances, it is necessary to

act. Innovations do not come about through reading but through experimentation.

Finally, one can apply the skills and insights gained through the study of books

to practical experience, making an already meaningful experience more

meaningful. However, unless it is applied to real experiences, book knowledge

remains theoretical and, in the end, is useless. That is why I believe that

knowledge gained from practical experience is more important than that acquired

from books.

My Computer

When I was in grade four in primary school, my father taught me how to use computer. After that, I was very interested in playing computer. I watched movies, played computer games, searched the Internet and listened to the music on computer. Because my father must work in his computer, so he bought another for me. I was very happy that I had my own computer. It was put in the study. I am always very careful to use my computer, because I am worried I would break. I often chat with my net friends. Because of my computer, I make many friends who have many in common. Of course, I use my computer in study. There are resources on the Internet. I can learn more after class. It does great help to me.

During the 15 days from New Year’s Eve to Lantern Festival, Beijing was

affected by smog for more than half the time, because of which people suffered a

lot. On the road people drove slowly because they could not see clearly. People

also suffered from many illnesses caused by smog.

The smog in Beijing has been caused by many factors, in which the increase

of cars in the city area plays an important role. The carssend off a lot of

poisonous gases, which in turn adds to the already seriousair pollution.

In my opinion, the number of cars should be limited.We should call on the

people to use more public transport. Only in this way canwe expect to have more

sunny days.

As a small girl, many teachers have asked me what do I want to be in

thefuture.My answer is always to be a teacher.It is my dream and I study so

hardto realize it.Being a teacher can pass the knowledge to others and guide

themto the right way.Thinking about the great contribution I would make,

everythingis worthy.

Love in high school is a very sensitive topic, the students in high school have come to the age of being mature, inside, they desire to love someone, but it is the awkward time. First, they need to focus their attention so that they can enter a better college, second, their parents are strongly objective to their love, the teachers even ban the love relationship between students. As a student, they have their own rights to love someone, the inner desire and the objection from parents and schools make them struggle to their emotions. In my opinion, high school students have so many pressure, they should put aside their love emotions for a while, they need to focus on the study, when high school time ends, they can choose their love. It is much easier, if you want to love at the time, then to love. No one will stop you.

爱在高中来说是一个很敏感的话题，高中生已经来到了即将成熟的年龄，他们渴望去爱人，但是这也是一个尴尬的时间。第一，他们需要集中精力学习，以此来考取一个好的大学，第二，他们的父母强烈反对恋爱，老师甚至禁止学生谈恋爱。作为一名学生，他们有自己的权利去爱人，内心的欲望，父母和学校的反对，让他们在情感上做挣扎。在我看来，高中生有很多压力，他们应该暂时把感情放在一边，需要集中精力学习，当高中时光结束以后，他们可以选择去爱。这容易多了，如果你那时想要去爱，就去爱。没有人会阻止你。

I like to do all kinds of sports, in the morning, I will do some jogging

and in the evening, sometime I will go to the gym with my friends. My favorite

sport is playing tennis, tennis brings my life so much happiness, I can watch

the match while talking to my friends happily. To do the sport will improve my

health and make me catch up with the time.

When I was small, one day, when I went home after school, I felt bored and

opened the TV, then I saw the tennis match. Two beautiful girls were playing

intensively, the game was so excellent, I couldn’t move my eye away from the

match. From then on, I started to fall in love with tennis, I watched many

matches and got to know more about the game.

Tennis sport is the combination of power and asthetics. The tennis players

dress the beautiful clothes and their power make the ball fly quickly. The other

tennis players will return the tennis ball with their rightly power. The game is

so wonderful, if we watch the match alive.

There is no doubt that I am a big fan of the tennis sport. I find so much

fun from it, it enriches my life.

Youth Day (青年节) in the Peoples Republic of China is on May 4. It was established in December 1949 by the Government Administration Council to commemorate the beginning of the May Fourth Movement in 1919. This day is known as …

May Fourth Movement

Chinese intellectual revolution and sociopolitical reform movement (1917 – 21)。 In 1915 young intellectuals inspired by Chen Duxiu began agitating for the reform and strengthening of Chinese society through acceptance of Western science, democracy, and schools of thought, one objective being to make China strong enough to resist Western imperialism. On May 4, 1919, reformist zeal found focus in a protest by Beijings students against the Versailles Peace Conferences decision to transfer former German concessions in China to Japan. After more than a month of demonstrations, strikes, and boycotts of Japanese goods, the government gave way and refused to sign the peace treaty with Germany. The movement spurred the successful reorganization of the Nationalist Party and gave birth to the Chinese Communist Party. See also Treaty of Versailles.

There is a big skating ground near our school. In winter, I often go skating there, and I enjoy the sport very much.

At first, I only went there to watch others skating. Some with good skills could skate wonderfully. I admired them from the bottom of my heart. But I couldn’t do it myself. I was only an onlooker. How I longed to skate myself!

I began to make up my mind to learn it. But as soon as I stepped on the ice, I stumbled over myself. At once, some people caught me, and I turned red over their laughter. I became so disappointed that I decided to give up. When I was about to leave, a girl came towards me with a smile and said, "Never mind, try again and you will succeed." I tried again and again, but still fell again and again. I put up with the wounds and pains and stood up and went on trying. At that moment, the girl came up again. She said loudly to me, "Ok, you are doing very well." Then she signed a "V" to me with her fingers. I was very obliged, and with her encouragement, I made great progress. Soon, I could skate quite well.

While doing anything, we often meet many kinds of setbacks, but we shouldn’t lose heart, we should overcome them with confidence instead of getting away from them. Then we will gain one victory after another.

Nowadays, any Chinese can enjoy the luxury of owning a private car - if he or she can afford it. Having a car of your own means no more traveling to work on crowded buses or subway trains, and you can drop off the children at school on the way. Moreover, it also means that you can enjoy the weekends and holidays better, because with a car you can go to places where the regular buses and trains do not go, and so you can find a quiet scenic spot with no crowds.

However, there are drawbacks to owning a car. For one thing, with the increase in car ownership in recent years, the roads are becoming more and more crowded, often making the journey to work more of a nightmare than a dream. For another, it is not cheap to run a car, as the prices of gasoline and repairs are constantly rising, not to mention the prices you have to pay for a licence and insurance coverage.

Having considered both sides of the argument, I have come to the conclusion that the advantages of owning a car outweigh the disadvantages. Therefore, it seems to me that China should increase its output of automobiles and enlarge the private car market. The result would be that cars would become cheaper, while at the same time the extra demand would encourage the auto industry to produce more efficient and family-oriented vehicles.

Nowadays, almost everyone has a mobile phone. Some people even have two or

three. Mobile phones changes our lives a lot. It’s so easy to get to others. All

you have to do is making a call. You can talk to anyone no matter how far you

are. Making calls and texting messages are the basic functions of mobile phones.

But now, we can do a lot of things by mobile phones, such as listening to the

music, watching movies, taking photos, reading books and so on. It’s so

functional that it seems like a computer to some extent. Some people even deal

with their business by mobile phones. It’s amazing.

Leo Tolstoy once said, everyone thinks of changing the world, but no one thinks of changing himself.

He is right. We always have great plans and dreams in our minds… too ready to achieve something grand thatChanges the world or benefits all of mankind .For example; we hate pollution and have made up our minds to find new energy sources that keep the environment clean. Yet we still litter on the ground. We complain about traffic jams, so we plan to build more highways to solve the problem, but it never occurs to us that our failure to follow traffic regulations is the leading cause of this situation. We are so concerned that the violence in the media has a bad impact on our children, we urge the government to set laws to protect them. But, do we, as adults, set a good example for our kids? We use nasty words and even spit on the ground in front of them, I dare to say, we harm more!

In my opinion, before we decide to change the world, we had better change ourselves first. As ordinary individuals, we do not have the power to change the world. But we can change our habit of littering, spitting, cussing, we can respect the environment around us, we must act as good models for our kids.

If each of us does all of these little things, all of us, millions and millions of individuals together, together we will be strong …strong enough to change our world!

So please, the next time you do something, think how your actions influence not only you, but those around you too, especially our children …and perhaps more importantly…our planet!

列夫·托尔斯泰曾说过：每个人都想改变这个世界，但是没有人想到改变自己。

他说的很有道理，我们每个人都心怀伟大时志向，时刻准备去干一番能造福全人类的大事业。比如，我们痛恨环境污染，所以我们下定决心去开发新的更高效更干净的能源来保护我们的环境，但是同时我们却随手乱扔垃圾;我们抱怨大城市的交通堵塞，计划造更多的高速路来解决交通问题，但是我们从来没有想过，如果我们能遵守交通规则话，那么这一问题是不是可以得到很大得缓解呢?我们担心电视电影里面得暴力会对我们得孩子产生不良的影响，于是我们敦促政府通过立法来保护未成年人，但是我们这些大人又做得怎么样呢?我们为我们的下一代做好了表率吗?我们说粗话，甚至在孩子面前抽烟。不客气地说，我们对孩子的不良影响更多!

在我看来，在我们打算改变这个世界之前，我们最好先改变一下自己。作为一个普通人，我们其实没有改变这个世界的能力，但是我可以改变我们随地扔垃圾，随地吐痰的坏习惯， 我们应该学会去保护环境，我们应该为我们的孩子起好的表率作用。

如果我们每个人都能从小事起，那么千千万万个人力量汇聚在一起，那力量是强大的，足以改变这个世界。

朋友，当您在做某一件事情的时候，请您想一想，您的行为会对您周围的人产生怎样的影响， 因为，您的行为不单单影响到您自己，还有您周围的人，更重要的是我们的孩子…甚至我们的世界。

Panda are cute animals.They live in the forests or the mountains and they eat bamboo for food.

The grown-up panda is about from 120 to 190 metres tall.And its weight is about 85 to 125 kilometres.

The skin of panda is black and white,its thick and soft.

In fat,there is also a kind of brown pandas,but only five are left in the world.There are a few pandas all around the world,so we should protect them.

Winter has gone , and spring is coming on .

Watching the ice melting ,I know the whole earth is being rejuvenated from the winter. A variety of flowers come out to show their beauty and bring us fragrance .It is a feast for our eyes and souls. The yellow grass suddenly turn green . The young leaves grow on the branches . The swallows fly back home with the greeting of spring .

Everything is coming to life . Feeling the warm sunshine , enjoying the beautiful scenery , listening to the wonderful music , drinking the new tea , my mood is perfect and I have nothing else to desire. Spring is the most fantastic season in the year .It means so much to the other three seasons.