初中英语说明文思维导图经典20篇

①“龙宫”作为神话里海底龙王的居所，曾引发了人们无数的想象，围绕它产生了众多故事。现实中“龙宫”自然是没有的，但迄今为止，浩瀚的海洋仍深深地吸引着人类：海洋蕴藏的财富，大海深处的奥秘……一切都那样诱人。

②当今最诱人的海洋资源之一就是“蓝色能源”。它既不同于海底储存的煤、石油、天然气，也不同于融于水中的铀、镁、锂，而是利用海水温差、潮汐、波浪等产生的动能、热能等能源，它具有清洁、可再生，能量惊人，分布广泛的优势。常见的蓝色能源是温差能、潮汐能和波浪能。

③6000万平方公里的热带海洋一天吸收的太阳热能，相当于2500亿桶石油的热能。如果将这些热能的1%转化为电能，相当于新增140亿千瓦装机容量，也就是每小时能发140亿度电。太阳辐射热进入到海面，绝大部分被海水吸收掉，深层海水几乎接收不到。因此人们可利用海洋表层水温与较低层水温之间的温差把热能转化为电能。发电时，将海洋表面的温水引进真空锅炉，温水因压力突然大幅下降立即变成蒸汽，推动汽轮发电机发电，用过的水流入海洋，如此循环使用。一般而言，冷、热水温差在20℃以上即可发电，因此若能把南北纬20度以内的热带海洋都利用起来发电，前景将十分诱人。

④无边无际的大海，在太阳和月亮的引力作用下，时而潮高百丈，时而引退千里。海洋这种有规律、有节奏的起伏现象就是潮汐。潮 汐发电就利用了潮汐能，人们涨潮时将海水以势能的形式保存，落潮时放出海水，利用潮位之间的落差发电。据初步估算，我国潮汐能资源量约为1.1亿千瓦，年发电量可达2750亿千瓦小时。潮汐能周而复始，取之不尽，用之不竭，可以成为沿海地区生产生活，甚至国防需要的重要补充能源。

⑤波浪能也是不容忽视的蓝色能源。“无风三尺浪”是奔腾不息的大海的真实写照。海浪有惊人的力量，5米高的海浪，每平方米压力就有10吨。大浪能把13吨重的岩石抛至20米高处，能量惊人。据计算，全球可供开发利用的海洋波浪能有20-30亿千瓦，年发电量可达9万亿度。波浪能的利用将有助于缓解矿物能源逐渐枯竭导致的能源危机，改善生态环境。

⑥古往今来，海洋一直以其阔大的胸怀哺育着人类，吸引着人类。进入21世纪，人类社会的可持续发展将会越来越多地依赖海洋。探索并利用蓝色能源,已经成为中国乃至全球可持续发展的重要保障。蓝色能源，大有可为！

1.文章开头从神话故事里的“龙宫”写起，有什么作用？

答：

2.读完这篇文章，说说你对蓝色能源有了哪些了解。（4分）

答：

3.阅读下面材料，结合上文中的相关知识，简要分析可以在南海开发何种蓝色能源。（4分）

【材料】

南海是中国以南的边缘海，是中国最深、最大的海，平均水深约1212米，中部深海平原中最深处达5567米。由于接近赤道，接受太阳辐射的热量较多，所以气温较高。年平均气温在25―28℃。5月份测得水深30米以内的水温为30℃，而1000米深处便只有5℃。

答：

1. 引发读者阅读的兴趣，说明海洋从古至今对人类的吸引，引出下文对蓝色能源的介绍。

2.①什么是蓝色能源。（蓝色能源是一种利用海水温差、潮汐、波浪产生的动能、热能等能源。）②蓝色能源的特点。（它具有清洁、可再生、能量惊人、分布广泛的优势。）③常见的蓝色能源类型。（常见的蓝色能源是温差能、潮汐能和波浪能。）④常见蓝色能源的发电原理。⑤蓝色能源的应用前景。

3.可开发温差能。根据上文，太阳辐射热绝大部分被海水吸收掉，深层海水几乎接收不到。在冷热水温差达到20℃以上时，就可利用海洋表层水温与较低层水温之间的温差把热能转化为电能。而南海平均水深约1212米，年平均气温在25-28℃，表层海水与较低层海水温差多在20℃以上，因此可在南海开发温差能。

Last night, my parents told me that they would go to have dinner with

friends, so they wouldn’t stay at home and let me to buy something to eat by

myself. I played computer games for a long time and when I got tired, I found it

was almost eight o’clock. I didn’t want to go out, so I opened the fridge, there

were many stuffs for me to make dinner. I had never done it before, I only

watched my mother cook, but I still wanted to try. I made a fire and put the

meat in the pan, the flavors were also mixed in it. When the meat almost got

black, I finished. Whe I tasted, I realized the meat was over cooked. I must

learn to cook.

做说明文阅读题时是最让人头痛的了，下面有几种方法帮助解决说明文阅读题。

阅读说明文应该抓住以下方面。

（一）．理解说明内容，把握说明对象的特征。理解文章内容是指明确说明的对象和把握说明对象的特征。所谓特征，就是这一事物区别于其他事物的标志。阅读说明文，抓住了说明对象的特征，便掌握了文章的中心。在整体阅读，理解说明内容的基础上，可以从以下两个方面入手把握说明对象的特征。

(1)局部分析，综合概括。在整体感知全文的基础上，分析文章组材和选材，段落层次的意义和联系，从而综合归纳出说明事物的特征，如(中国

石拱桥)一文列举了中国石拱桥中两个有代表性的例子赵州桥和卢沟桥。我们在分析这两个例子时，不难发现这两座桥虽有不同之处，但却都

具有形式优美，结构坚固，历史悠久的共同特点，因此可以综合概括出中国石拱桥的特征。

(2)抓住关键语句。许多说明文在说明事物时，会明确交待对象的特征，以便于读者理解和接受。因此，我们要学会抓住这些关键性语句，从而把握说明对象的特征。例如(苏州园林)一文，一开始就明确交待了苏州园林的特征务必使游览者无论站在哪个点上，眼前总是一幅完美的图画。抓住了这个关键语句，就把握了说明对象的特征了。

总结：其实做说明文时，把握说明对象，抓住关键句，综合概括是重点。

Dear Ling Feng,

I would like to thank you at the end of our middle school education. You

have been very kind and helpful since we knew each other.

You have given me so much help that I will never forget. Last term, I

caught a bad cold and had to stay at home for a week. When I was worrying about

the lessons, you came to my home after school and helped me with every subject.

With your help, I didnt fall behind others. Since then, we have become very

close friends. I think Ill try to help others just like you.

Thank you again. Even though we may go to different schools, Ill always

stay in touch with you. I wish you success for the future.

Yours,

Liu Yan

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.

I like midsummer the most in the wholeyear. In the day time, it is very hot. It seems that we all live in the hotpan. It is not comfortable. But in the evening, the sky is clear and bright.

I cansee the stars clearly and sometimes I can see bright and round moon.

Besides,compared to the day time, midsummer night is very cool.

When the wind blowthrough me, I feel wonderful. My all day trouble is gone with the wind. I likelooking at the sky in the roof of my house in midsummer night. It is beautiful.

一年当中我最喜欢的是仲夏。白天的时候，天气很热。我们就好像生活在热锅上一样。很不舒服。但是，在晚上，天空很清澈明朗。我可以清清楚楚地看到天上的星星，有时我还能看到又亮又圆的月亮。而且，跟白天相比，仲夏夜很凉爽。当风吹过我的时候，那感觉是很棒的。一整天的烦恼都随风而逝了。我喜欢在仲夏夜我家屋顶上看天空。很漂亮。

[初中英语作文：仲夏夜

"Enough! Enough!"I said when Father and Mother were still giving me more fish ad meat. My bowl was piled up like a little hill.

"Dont study too late into the night. Do be careful of your health. Have you had any examinations recently?"Father asked me in great concern.

My face turned red. I didnt dare to give Father an answer. I hadnt made any progress in my studies. I did badly in all subjects. I only got 60 for maths and failed in physics.

"It doesnt matter. Try to find better study methods and to work harder. I am sure you can enter a college!"Hearing these words, I bent my head down. What a kind father! He didnt scold me, but encouraged me instead.

"Have you used up the money I gave you last night?"With these words, Father was taking his wallet out."Mother has just given me 10 yuan.""Buy something to eat when you are hungry."Father passed me another ten-yuan note.

Should I accept it? Father and Mother love me deeply. Why couldnt I get god marks in exams? Tears came into my eyes.

"Dont cry. Now I will take you to the bus stop."As usual, Father carried that heavy bag and went to his dirty old bike.

[我的家人初中英语作文

When we were children, we often say that I want to grow up, or I want to be

an adult. As children, we cannot do many things, while after we grow up, we can.

However, we often complain that I don’t want to grow up when we become adults

actually.

Firstly, growing up means more responsibilities. We should make a living by

ourselves or we should support our parents when they can’t earn enough money to

make a living.

Econdly, after graduation, we need to work instead of accomplishing

nothing. We should have a target and work for it, so we have pressure on

jobs.

Every coin has two sides. Grow up can also broaden our horizon, offer us an

opportunity to know more about our world, love and protect the important person

in our life. Don’t be afraid of growing up, just be a better person and enjoy

our life.

Xiamen is located in Southeast of Fujian province,it is considered as the

cleanest port city in China thus people call Xiamen "the garden on the sea" or

call it "green island". Back to Song dynasty it started its administrative

founding until now.There are a great variety of sights to witness in

Xiamen.Gulangyu Island, the most beautiful island near Xiamen, has won great

reputation for its Sunlight Rock and Shuzhuang Garden.South Putuo Temple, which

is located at the foot of Wulaofeng and is deemed to be the most renowned

Buddhist temple in Xiamen.Xiamen Botanical Garden, known as the Wanshi Botanical

Garden,which has scenic spots such as the Morning Bell of Heaven, the Reading

and Music Playing Cave, the Cloud Locking Stones, the Jade Scepter Rock and the

Peace Stone. In the past decade, Xiamen has changed a lot with rapid advancing

in agriculture,industry,science technology and education areas.

导语：阅读有利于我们整个生活，可以增加我们的知识，开拓我们的视野，下面是yuwenmi小编为大家整理的英语作文，欢迎阅读与借鉴，谢谢!

I think reading is important in the whole life for people. There are many benefits of reading. Firstly, reading increases our knowledge and we can learn the world affairs without going out. Secondly, reading is a good way to improve reading and writing skills. Before you learn to write, you must know how others write. Thirdly, reading can broaden our knowledge and horizon, which is important to job hunting in the future. Finally, reading helps us become self-cultivation that would be beneficial to our whole life. Therefore, start to reading, no matter how old you are and what you are doing. Then, you may find the great charm and benefits of reading.

【参考译文】

我认为阅读是重要的在整个生命的人。阅读的好处有很多。首先,阅读增加我们的知识,我们可以学习世界事务,没有出去。其次,阅读是一个很好的方法来提高阅读和写作能力。你学会写之前,您必须知道别人怎么写。第三,阅读可以拓宽我们的知识,开拓自己的眼界,这对将来找工作很重要。最后,阅读可以帮助我们成为修养,将有利于我们的整个生活。因此,开始阅读,无论你多大了,你在做什么作文。然后,你会发现伟大的魅力和阅读的好处。

My Best Friend

我最要好的朋友

Everybody has a best friend that they can share everything with. I also have a best friend. We met in school, and were in the same grade.

每个人都有可以与之分享所有事的最要好的朋友。我也有个最要好的朋友。我们是在学校里相遇的，还是一个年级的。

My best friend is a good student because he is very hardworking. I learn a lot from him. He helps me with math; I help him with English. We always help each other. Besides that, hes honest and reliable. I trust him completely and we share secrets all the time.

我的好朋友是一个好学生，因为他非常努力（学习）。我从他身上学到很多（东西）。他帮我复习数学，我帮他复习英语。我们总是互相帮助。除此之外，他是个老实并可信赖（的人）。我完全相信他，我们一直分享着秘密。

My best friend is a loyal and brave boy. When a bully teased me, he came to my rescue right away. He always remembers my birthday and he is fun to be with. He tells funny jokes and stories. He always makes me laugh. Finally, he is a very good listener and he knows how to cheer me up when Im down. I hope well stay friends forever.

我最要好的朋友也是一个忠诚并勇敢的男孩。当恶霸欺负我的时候，他立马来解救我。他总是记得我的生日，而且与他相处很愉快。他告诉我有趣的笑话和故事。他总是使我发笑。最后，他是一个很棒的倾听者，当我心情低落的时候，他知道如何让我振作起来。我希望我们能成为永远的朋友。

[我最好的朋友初中优秀英语作文

January 1st is New Year‘s Day. It‘s a great day for all the people throughout the world. As the saying goes, A good beginning is half the battle. So, many people go all out to celebrate the important day. On that day, I went to the Book City with my classmates. We bought a lot of useful reference books and interesting story books. I believe Knowledge is power. I hope I can learn a lot from these books and improve my study. In the evening, my family had a big dinner party. All the members in my family wished me a good luck in the new year.

I Like Basketball

My favorite Sports is basketball. It looks so cool in TV that I was crazy about those basketball stars ever since I was little.

Basketball requires speed, height and skills. I run, jump, switch, and try to hit! All parts of my body are exercised in this sport. I feel that I’m like wind flying in the playground for my goal, which makes me feel so GREat!

Basketball needs quick reaction and decision. When chance comes, it may disappear in the next second. I should keep an eye watching as an eagle, decide and judge quickly as a leopard, and run for it as a wolf.

Further more, basketball is a sports more than just exercising, It needs team work. No one can play himself. A team should work together. So I learn to cooperate with others in this game. I should understand what my teammate doing and what he needs me to do for him. On the other side, I should learn to show my teammate what I need. At the same time, I need to keep an eye on the whole game, knowing how is the situation of our team and how is the other team. It involved more cooperation and strategy.

I played basketball more for about 5 years now. I make many good friends throught this sports. It is proud to win honor for my team and my school. Also I enjoy all games with my friends. Basketball will be my best friends in the future and my best memory about school life.

[我喜欢篮球初中英语优秀作文

I dont think our school life is colorful. Because weve got so many classes every day. I wonder whether we can change our school life someday. You see, from Monday to Friday, I have to stay at school. the only relaxation is to listen to the radio or play ball games. At weekends, we need to go to school to have classes, too. I know its very important for us to study well now. As the saying goes, "All work and no play makes Jack a dull boy. "I want to step into the nature. I hope we will have more activities such as visiting museums, taking part in different kinds of contests, attending some lectures and so on. Is it only a dream?

It is believed that the computer is bringing the world into a brand new

era. At the time the computer was invented, scientists, marveling at its

calculating speed, felt that they had created a miracle. Nowadays, the function

of the computer is no longer confined to calculation; it permeates people’s

daily lives and has become an inseparable part of human society.

People become so heavily dependent on computers that it is hard to imagine

the life without computers. Therefore, some people are worried that “The real

danger is not that the computer will think like man, but man will think like the

computer.”

Their concern does make sense. Indeed, some people spend such a long time

working on computers that they have few interactions with people in real life.

According to a research, too many hours in front of a computer may lead to a

poker face and interpersonal isolation. This fact should arouse our attention,

because unlike computers, human beings are social creatures that need emotional

connections with others.

Yet, it is also unnecessary for us to be overwhelmed by the negative

impacts of computers. After all, we humans are intelligent and will be able to

figure out better ways to make improvements.

My Low-carbon life

With the development of society,low-carbon life becomes more and more important. Some people think it is very difficult to do.In fact,we can do a lot of things .

First, as a student,some of us can ride a bike to go to school, or walk to school every day.It can not only save energy but also it is good to our healty. Second,when we leave the classroom,remember to turn off the lights, so it can save electricity.And third, we can use the water circulary. Fourth,we can use the paper adequately .

I think if everyone does something for the low-carbon life,the world will become more and more beautiful.

Nowadays,the whales is in danger.Because many countries kill them for different use,they are dying out.To protect our earth and ocean,especially the diversity of creatures.we must realize that we should take effective measures to protect them.If the whales died out,it would have an important influence on other animals in the sea.Also,the environment will be changed.I sincerely hope that we can make our effort to save them!

如今,鲸鱼是处于危险之中。因为许多国家杀死他们不同的使用,它们灭绝。为了保护我们的地球和海洋,特别是生物的多样性。我们必须意识到我们应该采取有效措施去保护他们。如果鲸鱼灭绝了,它会对其他动物产生重要的影响。此外,环境将被改变。我真诚地希望我们可以使我们的努力拯救他们!

We all wish (hope) to be happy, so we should take good care of our health.

Health is the best treasure (which) a man can possess. Money can do many things, but it cannot buy happiness. However, so long as man has good health, he can enjoy the pleasures of human life.

In order to insure good health we must pay attention to three things. They are-nourishing food, fresh air and proper exercise.

我们大家都希望快乐，所以我们应该好好保重健康。一个病人因为失去健康而很少快乐。

健康是一个人所能拥有最好的财富。钱能做许多事情，但是它却不能购买。然而，只要一个人有良好的健康，他就能享受人生的乐趣。

为了保证良好的健康，我们必须注意三件事情。它们是营养食物，新鲜空气和正当运动。

[初中生英语日记良好的健康

If you want to ask me why we should study English, my answer will be simple and clear. Now let me enumerate the reasons one by one in the following.In the first place, English has become an international language. If you know English, you van make a trip round the world without being misunderstood.In the second place, most valuable books, newspapers and magazines are written in English. If you wish (hope) to get knowledge, you must learn English.

如果你要问我们为什么我们要学英文。我的答复很简单明了。现在让我来把我的理由一一列举在下面：英文已成为一种国际语言。如果你通晓它，你可以环游世界不会被人误解。大多数有价值的书籍，报纸和杂志都是用英文写的。如果你希望获得知识，你必须学习英文。

Last March, my mother told my father and me that my grandfather would come

in April. We were very happy because my grandfather was an interesting old man

and he had not visited us since he went to Hong Kong.

On April 1 my father and I bought a lot of food from the supermarket and

bought a big bunch of flowers home. Then we did some cleaning at home. At night

when we were waiting for my grandfather, the bell rang and in came my mother.

She smiled to us and said "April fools"!

Miss Li is my English teacher. The first day I met her, I liked her,

because she looked so young and nice. Miss Li liked to write some inspiring

words in our homework. So everytime when I handed in my paper, I was so looking

forward to getting Miss Li’s response. I remembered one time, I did not do well

in an English test. Miss Li wrote the words to me and she believed me I could

make great progress next time. I was so moved, so when I had annoyance, I would

like to talk to her. Miss Li is my guide. She can give me suggestion and lead me

to the right direction.