初中英语日记范文10篇带翻译(合集20篇)

celeberate the 55th national day chinese people will welcome the 55th national day two days later,october 1th.

in beijing,the tiananmen square is decorated by more than 300,000 pots of flowers,the chairman maos old icon is changed by a new one hanging on the tiananmen building.

in nanjing,sweet-scented osmanthus festival,misty rain culture festival in mochou lake,barbecue festival in gulin park will be held during the national day.

in chongqing,more than 2,000 of lights on bridge are renewed to welcome the national day.

during the national day period,raising the national falg ceremony,a concert of national music and an exhibition of patriotic films will be held in hangzhou,zhejing province.

happy national day!

Time really fast, it is for one year, the winter holiday will begin school this morning. Instead of holidays, mother is always at the beginning of the holiday is asked me to make a plan for the holiday, the purpose is to I can arrange well in the holiday, can find all kinds of fun in learning, and can learn more knowledge.

First of all, I want a winter vacation homework and assigned by the teacher good learning tasks to complete earnestly, more exercise and keep healthy.

Second, I want to practice calligraphy, grow up to write a good word, to see the TV news, understand the society. I want to insist on keeping a diary, I used to write diary is to cope with the parents to check, have no content, Im going to visit a reference books, a day after the winter break, he saw and heard during some of the thoughts it all recorded in the journal, to see the wisdom of some mother bought me a back, good composition, learn the somebody elses writing methods, improve their writing level. In Internet time into, have a look at what other people write, use the method of complement each other to learn more from others, less time to play some computer games, it will not only affect our study, but also is bad for our eyes.

Again, when go out to relatives must be polite, respect for elders. When the Chinese New Year to teachers and elders happy New Year.

Finally, I want to strengthen learning at the same time, more to help the family to do some thing in ones power.

Oh, this is my winter vacation plan.

时间过的真快，转眼又是一年了，今天上午学校开始放寒假了。与以往放假时一样，妈妈总是在假期开始是要求我自己订一个假期计划，目的是为了我能在假期中合理安排好，既能在学习中寻找到各种乐趣，又能学到更多的知识。

首先，我要把寒假作业和老师布置的学习任务认认真真地完成好，要多锻炼身体，保持身体健康。

其次，我要练习书法，长大以后能写一手好字，要多看电视新闻，了解社会。我要坚持写日记，以前我写日记都是为了应付家长的检查，一点内容也没有，以后我打算每天看一篇课外书，把寒假期间的一些所见所闻、所思所想一一地记录在日记本上，要多看一些妈妈给我买的智慧背囊、优秀作文，学习一下人家的写作方法，提高自己的写作水平。在上网时间多进入，多看看别人是怎么写的，用取长补短的方法向别人多学习一些，少玩一些电脑游戏，它不但会对我们的学习造成影响，而且还对我们的眼睛有坏处。

再次，出去走亲戚时一定要做到文明礼貌、尊敬长辈。过年时要向老师们和长辈们拜年。

最后，我要加强学习的同时，还要多帮家人做一些力所能及的事情。

这就是我的寒假计划哦。

初中生活已经过半，可我的成绩却一直处于水平线，几乎看不到任何的进步，也似乎没有退步......

想想现在已经经过了十一次月考，但我的成绩却不是那么尽如人意最好的一次是200名，而最差的是280名，剩下的就是在其间徘徊，这次考试也就是第十一次考试，我的成绩又不幸地落入其中235名。原本我满怀信心，但经历过数学考试后，我的自信就跌落到了谷底。这次考试主要考一次函数的图像，可我在七年级就在这方面大失水准，基础本来就不好的我这无疑是雪上加霜。考试完后，我颓废的等待成绩，抑郁的度过了两天。等到成绩单发下来的时候，更是晴天霹雳，虽然我已经做好了最坏的打算，但我始终没想到竟然会不及格。当看到成绩是，我整个人都几乎崩溃了!

这次考试不仅是是数学没考好，就连我较自信得英语也考得一塌糊涂，我顿时对以后的道路迷茫了，如同在一个漆黑的房间里找不到开启光明之门的钥匙，虽仅有一步之遥，但却显得那么遥远。渐渐地，我失望了。虽然在自我反省以及老师，朋友，父母的鼓励，教育下，重拾那早已被我丢失的信心。但那又能弥补什么呢，莫大的心理压力使我无法呼吸，一直萎靡不振下去......

我也想有一个好成绩，因为这个好成绩，可以证明我的努力;因为这个好成绩，可以老师与父母感到欣慰......可这又何尝办到呢?即使有了动力，但却没有坚持不懈的毅力，没有持之以恒的毅力，这些都是空谈。我明白父母与老师的心血，也当然知道我付出的努力。尽管不可能实现，但我仍然希望自己有一个好成绩。

Hello! My name is Mingming. I am a pupil. I like speaking English very

much. I go to school five days every week. Every day I go to school on foot.

Because my school is not near my home. I like my school. There are about 3500

students and 54 teachers in my school. And I study in Grade 4. There are 45

students in my class. My English teacher is tall and handsome . I love him very

much. Welcome to my school. You must be very happy.

你好!我的名字叫明明。我是一个小学生。我非常喜欢说英语。我每周要去学校五天。我每天步行去上学。因为我的学校不是在我家附近。我喜欢我的学校。在我的学校里大约有3500名学生和54老师。我在四年级学习。在我的班级里有45个学生。我的英语老师又高又帅。我非常喜欢他。欢迎来到我的学校。你一定很开心。

Saturday， March 5th

My name is Sun Mei， My English name is Jane. Im twelve. I have around face， short hair and two big eyes. Im not beautiful， but Im very lovely. Im good at playing piano. I love classical music. I like summer best because I can go swimming. I enjoy swimming as a free and happy fish. My favourite pop star is Zhou Jielun. His English name is Jay. Hes from Taiwan， China. I alse want to be a singer when I grow up.

This is me--a happy girl.

翻译：关于我

3月5日 星期六

我叫孙梅。我的英文名字叫Jane(简)。我12岁了。我有着圆圆的脸蛋、短短的头发和一双大大的眼睛。我并不漂亮，但很可爱。我擅长于弹钢琴，喜爱古典音乐。我最喜欢夏天，因为

我可以去游泳。我喜欢像鱼儿一样自由自在、无忧无虑地畅游于水中。我最喜欢的明星是周杰伦，他的英文名字叫Jay。他来自中国台湾。我长大后也想成为一名歌手。

这就是我——一个快乐的女孩。

小学元宵节英语日记lantern Festival

Today is lantern Festival. I am very happy. Lantern Festival is Chinese

festival. Every year once.

今天是元宵节。我非常快乐，元宵节是中国节日，每年一次。

In this day, people are very happy . In the steet, people is a lot

of.people see a lantern. In the evening,I eat yuan_iao together with my family.

Its very delicious.

在这一天，人们都快快乐乐的。在街上，有许多的人，人们看到一个灯笼。在晚上，我和家人一起吃元宵，很美味的元宵。

I like Lantern Festival very much.

我非常喜欢元宵节。

I walk around the Peak, around the flowers are numerous, full of branches, flowers and criss-crossing, as if the fence rows. Looking down from the peak, only an immense display. full of golden-yellow flowers, Down on the ground, not for the intoxicated with the beauty of nature, this beautiful paradise like the Garden of Paradise.

Suddenly, a cold wind blowing, I began to tremble , and winter jasmine, it seems a soldier, is to resist the wind, the yellow flowers with a sword, and the wind is it a duel! I was怔住this scene, the winter jasmine as appears to be weak, so delicate, and in the cold before they are without fear.

They really tenacious vitality ah!

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.

The Dragon Boat Festival, also called Double FifthFestival, is celebrated

on May 5th on lunarcalendar.It is a folk festival widely spread with ahistory of

over 2,000 years, and is one of the mostimportant Chinese festivals as well.

There are variouscelebrating activities on that day, among which the customs of

eating rice dumplings anddragon boat racing are quite important.There are many

legends on the origin of the DragonBoat Festival.Some people think it is to

commemorate the poet Qu Yuan, while others say it isto be in honour of Wu Zi_u,

a famous general during the Warring States period. However, thelegend of Qu Yuan

spreads most widely. People appreciate highly the noble sentiment andprominent

talent of this patriotic poet and are very sympathetic with the ending that

hecommitted suicide by drowning himself in a river.

端午节(the Dragon Boat Festival)，又称重五节，于每年农历五月初五庆祝。

这是广泛流传2000多年的民间节日，也是中国最重要的节日之一。端午节当天举行各种庆祝活动，吃粽子和赛龙舟(dragon boat

racing)是其中的重要习俗。关于端午节的起源，有很多传说。一部分人认为端午节是为了纪念诗人屈原，另一部分人则认为是为了纪念战国时期的著名将领伍子胥。然而，屈原的传说流传最广。人们非常欣赏这位爱国诗人的高尚情操和出众才华，更对他投江自尽的结局深表同情。

下午放学后，同学们犹如冲破囚笼的鸟儿们，在饥饿的.“驱动”下，同学们个个“健步如飞”，排完队就个个迅速冲下楼——目标：校门!

我们女生一小部分很奇怪，放学后不怎么喜欢及时回家，总是喜欢在班级逗留一会特别是下午，班级人都走完了之后，我、马伊妮、杨清影……(还有谁不记得了。)我们留在了班级。正巧，高老师在班级改考卷。我们一群女的就凑了过去……嚯，欣媛考的不错，分别是100、99哎呀一分可惜了呢。大家考的都不错只有我……啊啊啊!为什么会有数学这玩意啊!我真的败了!因为第7单元我根本不了解凭着感觉去做只考了80嘤嘤嘤……QAQ另一面(第8单元貌似)还好，夜空漆黑，犹如倒扣下来的黑盒子。小雨点点，女生们一路上有说有笑的往家的路上走去，到了校门，都两两走散。

期末考，两科90分以上。 这是我的目标。

我现在觉得我就像90分这条线，稍稍一不认真就偏向了80分……嘛。无论怎么说，期末倒计时21天，3个星期! 黄多纳!你要加油咯!

It was sunny and very hot today. I got up early and helped my parents cook

breakfast. Then I washed the dishes and cleaned the room. After a short rest I

did my homework in the morning. In the afternoon I went swimming in the nearest

swimming pool with my friends. It was really cool to swim in such a hot day. I

surfed the internet and read a storybook in the evening. I really had a busy and

interesting day.

Today, I went out with my best friend. When we arrived at the park, it

rained. We had to run in the rain because we couldnt find a place to hide. But

we still feel happy because we could comfort each other. The rain stopped later

and I accompanied her go home. We played in her home for a while and she invited

me for dinner. I refused because I feel it will bring trouble to his family. I

am happy today because the new term is coming. I really want to see my

classmates again

今天和最好的朋友一起出去玩。我们来到公园后，却下起了好大的雨。我们无处可躲。在雨中奔跑着。可是我们却很高兴。因为有彼此的安慰。过了一会，雨停了。我陪着她回家。然后在她家玩了一会，他留我在那里吃饭。可我拒绝了，因为有些不好意思。今天我很快乐，马上就开学了，真想快点见到同学们。

Today is New Years day, I, mother and grandmother go to the supermarket. Go out have a look at the weather, just like put a lot of smoke, the foliage.

In the supermarket, mother first thing is to give my grandmother to buy clothes, buy out again to buy her, I think when I turn? Are more than two hours, finally see the toys, I ran past picked out a box of kitchen utensils and appliances model, the grandmother bought me a box, we happily go back. At home, my grandmother give me cut a little stir, I put in a small pot, pour some water, put on my home appliance heaters, hot, put some sesame seeds, salt, for my mother to eat.

Start her dont eat, at my request, she didnt eat "rice", she also try not to eat to feel! Ha ha.

今天是元旦，我、妈妈和外婆去超市。出门一看天气，就跟放了很多烟雾弹一样，阴森森的。

到了超市，妈妈第一件事就是给外婆买衣服，买完了又给她买，我想什么时候才轮到我?都两个多小时了，终于看到了玩具，我跑过去挑了一盒厨具模型，外婆给我买了一盒，我们高高兴兴地回去了。回到家，外婆切了一点萝卜丁给我，我放在小锅子里，倒点水，放在我家电暖器上，热了以后，放了点芝麻、盐，给我妈妈吃。

开始她不吃，在我的请求下，她才把“饭”吃下去，给她也尝尝非吃不可的感觉!哈哈。

Early in the morning, I looked out the window, a piece of white, it was snowing.

Walked on my way to school, white snowflakes swirl, for an instant, the earth and the blanket of snow. Snowflakes like stars shine, dancing in the air, how beautiful it is. Floating ah float, fall in the withered flowers, grass and crops, trees, like a layer of the quilt. The people in the streets wearing a collar, masks, dressed in a thick down jacket and cotton shoes, fat at a draught. Snow on the road to harden, the thick layer of ice, ice hard as stone. Look, the children make a snowman, snowball fights in the snow, have a good time.

I like snow, it has brought the infinite vitality.

清晨，我望着窗外，白茫茫的一片，原来是下雪了。

漫步走在上学的路上，洁白的雪花纷纷扬扬，一瞬间，大地上铺盖着雪毯。雪花像星星一样闪闪发光，在空中跳着舞，是多么美丽动人。飘呀飘，落在了枯萎的小花、小草、庄稼、树木身上，像是盖了一层棉被。大街上的人们戴着围脖、口罩，穿着厚厚的羽绒服和棉鞋，一下子胖了一圈。马路上的雪变硬了，结了厚厚的一层冰，冰坚如石。看，小朋友们在雪地里堆雪人、打雪仗，玩得高兴极了。

我喜欢下雪，它给大地带来了无限生机。

我又迟到了 I Am Late Again

I opened my eyes in the morning and looked at the clock. "Oh, dear! Its

half past seven already. Ill be late again," I thought. Without breakfast, I

hurried to school. But it began to rain hard.

早晨我睁开眼睛，看看钟表，“天啊!已经七点半了。我又要迟到了，”我想。没有吃早饭，我就匆匆朝学校赶去，可是天又下起雨来。

When I got to the classroom, the maths teacher had already begun his

lesson. It was Mr wang. All of us were afraid of him. I didnt like him, or his

lessons. I opened the door. " Im late again, Mr Wang."

当我到教室时，数学老师已经开始讲课了。是王老师，所有的学生都怕他。我不喜欢他，也不喜欢他的课。我打开门，“王老师，我又迟到了。”

"Ive told you not to be late, but you ..." he said angrily. But suddenly

he stopped, and looked at my clothes. He quickly took off his own jacket and

handed it to me. "Now take off your wet coat and put wet one on." he said

kindly.

“我早就告诉你不要迟到，可是你……”他生气地说。可是他突然停下来，看了看我的湿衣服。他很快脱下自己的上衣递给我。“把你的湿衣服脱下来，套上这件。”他和蔼地说。

It was a bit large for me, but I felt warm in it.

衣服套我身上有点大，可是穿上感觉很温暖。

今天是军训的第三天。经过一天的军训，大家都有了经验了，知道在军训之前应该涂抹防晒霜，知道如何去“应付”教官，知道如何在军训的时候如何去“偷懒”了。

早上，我们6：30就赶到了公主楼前集合，这是早操时间。早操其实并不是同学们想象的做操，只是教官会把前一天学的几个动作复习一遍。剩下便是站军姿了，这也是我们最害怕的了，因为不能动的滋味真的很痛苦，何况是站在烈日下呢。

今天的军训还比较有意思，因为在休息的时间段里我们二连和一连进行了唱歌比赛，那样的场面是我们在平时很难见到的，它显示出了我们团结的力量，让我们明白了只用自己的力量是远远不够的，而需要大家团结一致的力量。在中途我们还一致要求教官给我们来一首，可是没想到我们认为很威武的教官竟然害羞起来，留下了小小的遗憾。

今天军训，教官运用了与昨天不同的方式。昨天当我们做不好动作的时候，教官的批评收到的成效似乎不大。而今天教官采取的激励和鼓励，使得我们很有信心，军训的时候也更加认真了，因为我们觉得自己在进步。

军训只是进行了三天，我相信这后几天的军训生活会更加的有意思，同时也会更加的辛苦。但是只要我们坚持，一定能够愉快的度过这军训生活的。

Computer is a very useful machine. Some of them are big, but some of them

are very small .Many people like playing computer. Computer has many functions,

so that people can do a lot of things by computer, like watching movies,

listening to the music or playing games. It can make our lives very colorful and

convenient. Various people can make good use of computer. Children can use

computer to learn and play games. Parents can use computers to work. I think

computer is a kind of wonderful and interesting machine, so I like computer very

much.

我的周末

201_年_月_日 星期_ 晴

I have planned a happy weekend.Saturday morning, I must go to see me

aunt.In the afternoon, I must go to the shopping center to go shopping.Evening,

I planned makes the homework.Sunday in the morning, I watch the television, the

television program is e_tremely interesting.In the afternoon, I planned listens

to music and paints pictures.I thought this weekend I can be very weary, but is

certainly very joyful.

我打算过一个愉快的周末。周六的上午，我要去看望我的阿姨。下午，我要去购物中心买东西。晚上，我打算做家庭作业。周日上午，我看电视，电视节目非常有趣。下午，我打算听音乐和画画。我想这个周末我会很疲劳，但一定很快乐。

Tree and Ax

Ilike to tell you a story today ,it is Tree and Ax:A woodman came into a

forest to ask the trees to give him a handle for Ax.It seemed so modest a

request that the principal tree at once agreed to it,and it was settled among

them that the plain,homely Ash should finish what was wanted.No sooner had the

woodman fitted the staff to his purpose,than he began laying about him on all

side.Felling the whole matter too late,whishpered to the Cedar:“the fist

concession has lost all;if we has not a sacrificed our humble neighbor,we might

have yet stood for ages ourselves”The story was a satire on ungrateful

people,and it also shows us that giving alms to the enemy is cruelty to

yourself

参考翻译

树和斧子

今天我要给你讲个故事，就是“树和斧子”：有一个樵夫到森林里，要求树给他一把斧柄，看来他的请求非常谦虚，立刻得到了树的首领的同意。他们决定由平凡而朴素的白杨树来提供所需要的东西。樵夫刚按好斧柄，就开始到处乱砍，森林里最高的树都被砍到了，森林现在察觉大势已去，就小声对杉树说：“第一次的让步已经失去了一切。如果我们不牺牲我们的小小邻居，我们还可以活无数年呢。”这故事讽刺了忘恩负义的人，也告诉我们对敌人的施舍就是对自己的残忍。

In my opinion, the movie “ the pursuit of happyness “ is a meaningful film,

the hero of the movie is an active man. Though his life was very hard, his wife

left because of the situation of their family.His work was also unfortunate. He

never gave up and still work hard.Then he took care of his little son. He is

going after happiness all the time, so his life is running . Time is very

importmant to him, he must finish his task on time , or he wouldnt live a

steady life , he has to pay the rent and taxes and so on, but he insist on

taking every chance to make his life live better and he believe in himself.

Finally, he succeed , his part of life in the movie is moving and real.

I also like the song in the movie very much, it says “ the mountains have

high places and low places ……”

Everyone has a dream, if you work as hard as the hero of the movie , your

dream will come ture, so I will learn from the hero ---Chris Gardner.

And I believe my dream isn’t far away!

初中生物实验教学实施素质教育的目标是培养具有较高的科学素养、具有科学的思维和研究方法、具有创新意识和创新能力的人才。生物实验教学是培养学生观察能力、动手操作能力、推理分析能力和创新能力的重要途径。那次，在教学中，可以通过实验强化学生思维意识和动手操作水平，从而达到培养学生的创新和创造能力的目标。下面就一下几方面谈一下关于生物实验及创新的认识。

一、认真备课，掌握步骤和要领

教师在备课时应先做好实验，分析实验步骤。实验步骤是学生动手规范操作的要领,只有理解、掌握才能规范操作,实验才能成功。因此实验前指导学生预习,将实验步骤由繁化简,抓住每一步的关键词语串通于实验步骤之中，可以收到好的实验效果。

例如，显微镜使用过程中的“三个一”:一、安放距桌边一掌(5-7cm);二、对光要目(目镜)物(物镜)通光(通光孔、光源)一直线,光强用平面镜,光弱用凹面镜;三、观察时标本对孔正中距离物镜一厘米,视野中出现标本颜色或杂质时观察目标即将到位,微调粗旋镜升降,细旋校象清晰,找不到目标时缓缓移动玻片标本即可找到。操作时用左眼观察时,同时右眼睁开,转动物镜时，应扳动转换器。这样学生很快对好光,观察到标本在视野中的图象。用完显微镜擦干净外表。转动转换器,把物镜偏两旁,放回镜箱原处。

再如，制作临时装片的实验,将实验步骤概括为擦→滴→取→展→盖→染。然后强调注意事项。滴一滴清水,太多易外溢,太少易出现气泡。取材薄而透明透光易观察,展平防重叠,轻盖防气泡。气泡与细胞的区别,气泡呈圆形，边厚黑,中间亮白,轻压变形。这样学生很快掌握步骤、要领,在显微镜下观察到自己制作临时装片中的细胞,认识细胞壁、细胞质、细胞核(细胞膜紧贴细胞壁,在光镜下看不见),然后绘出细胞结构图。这样学生就达到了实验的目的要求,兴奋不已,终生难忘。

二、指导实验，及时反馈和调控

在实验中，教师通过巡视，随时纠正学生的操作错误，及时表扬规范操作快而且准确的学生这是实验过程中的及时反馈与调控。例如，有的学生在实验过程中，急于观察，但未按课本的有要求操作，他们或用高倍镜对光，或光圈反光镜未调好，就急于调整粗准焦螺旋，眯着眼睛看目镜。这时，教师应启发学生对照课本的操作要求，检查自己的操作错误并纠正。学生在独立进行实验操作时，往往心理负担较重，动作技能还没有熟练，出现一些错误是正常的，教师要耐心的支出并给予及时的纠正。实验结束后，对表现好的学生要及时给予表扬，对普遍存在的失误应给予分析和纠正。让学生吃一鉴，长一智。整个过程要处分发挥学生的整体作用，也要充分发挥教师的主导作用。

三、正确处理规范与创新的关系

中学生物实验大部分属于验证性实验。而要提高学生的科学素养，除了掌握课本结论外，还应提高学生的创新与探索意识。教师在实验过程城中，既要要求学生严格规范实验操作，又要引导学生的创新思维。例如，在“练习和使用显微镜”的实验中有些学生会对显微镜感兴趣，除了完成教师规定的操作外，还会放一根头发或一张纸在显微镜下观察，这种做法是对显微镜无损的，。却反映出学生的求知欲，教师不但不应制止，还应当因势利导，让学生说说实验结果，引导学去理解“所观察的材料必须是薄而透明的”。在这一实验中，一些学生会转转目镜、物镜等，此时教师可以提出“如何判断视野中的污点在哪里?”以此来培养学生的发散思维。

四、将某些验证性试验改为探究性试验

探究性试验与验证性实验相比，更能发挥学生的整体作用，克服思维定式的束缚，更有利于学生的探索精神和创造性思维的培养。因此要鼓励学生不迷信权威，大胆探索，大胆创新。例如在“验证人体呼出的气体中含有较多的二氧化碳”时，我就鼓励学生把它变成探究性实验。人体呼出的气体有二氧化碳吗?人呼出的气体有二氧化碳吗?人呼出气体中二氧化碳与空气中二氧化碳含量相同吗?提示二氧化碳能使澄清的石灰水变浑浊。在这一实验中可将打气筒变为吸耳球，考虑到学生没有使用过吸耳球，在实验前向学生出示洗耳球并简单介绍他的作用。然后学生经过讨论、分析制定了下列实验步骤：①取甲乙丙三只试管，分别注入10毫升澄清的石灰水;②用玻璃管向甲试管中吹气，重复几次，一段时间后，发现甲试管中澄清的石灰水变浑浊;③取一只玻璃管插入乙试管中，不断用吸耳球向玻璃管内压气，与向甲试管中吹气的时间相同，发现澄清的石灰水变浑浊;④以丙试管作对照，比较甲乙两支试管，发现甲试管石灰水变浑浊程度深;⑤得出结论;人呼出的气体中含有较多的二氧化碳。

实验的成功与失败都会引起学生注意，进而探索实验材料的选择等，培养了学生的思维能力、分析解决问题能力以及实验创新能力。

生物是一门以实验为基础的学科。在教学中注重实验教学，一定能使我们的教学事半功倍。