为您找到与鱼鳔与潜水艇是什么关系相关的共13个结果:
说明文是一种文章的形式。说明文的中心鲜明突出,文章具有科学性,条理性,语言确切生动。以下鱼鳔和潜水艇说明文是小编为大家推荐的,欢迎阅读!
说到潜水艇,大家自然会有个疑问:为什么潜水艇既可以浮在水上,又可以潜入深海呢?原来这是科学家从鱼体内的鱼鳔得到启示,而发明了潜水艇。
鱼在水中游,它既能浮在水面,又可以潜到水底。这是为什么呢?科学家们打算解剖鱼类,来探究这一奥秘。
科学家把鱼剖开,只见它体内有一个像气球似的白色东西。这个东西里面是空的。科学家突发奇想,若把它灌满水,使鱼变重它是不是就可以潜入水呢?那如果把水排出,鱼是不是就可以浮起来呢?为了证明这一点,科学家开始反复试验。
科学家们用气球来代替鱼的小气泡。把气球充满气,放在水池。只见气球浮在水面,不会沉下去。科学家用水灌满气球,放入水池,只见气球马上就沉入水底。
原来,那个像气球似的东西叫鱼鳔。当鱼想沉下水时,就把鱼鳔的气排出,把水灌进。水使鱼变重鱼就下沉。当把水排出变成气体,鱼就浮出水面。
科学家就模仿鱼能潜水的特点,发明了潜水艇。在艇上装个大水箱。当想要艇下潜时,往水箱灌水,就可以下潜。当想要上浮时,就把水箱水排出,就可以浮出水面。
现在潜水艇在军事领域发挥非常重要的作用,为我国国防做出了重大贡献。看来大自然真是人类最好的老师!
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摘要:鱼在水中游,它既能浮在水面,又可以潜到水底。这是为什么呢?科学家们打算解剖鱼类,来探究这一奥秘。科学家把鱼剖开,只见它体内有一个像气球似的白色东西。这个东西里面是空的。
说到潜水艇,大家自然会有个疑问:为什么潜水艇既可以浮在水上,又可以潜入深海呢?原来这是科学家从鱼体内的鱼鳔得到启示,而发明了潜水艇。
鱼在水中游,它既能浮在水面,又可以潜到水底。这是为什么呢?科学家们打算解剖鱼类,来探究这一奥秘。
科学家把鱼剖开,只见它体内有一个像气球似的白色东西。这个东西里面是空的。科学家突发奇想,若把它灌满水,使鱼变重它是不是就可以潜入水呢?那如果把水排出,鱼是不是就可以浮起来呢?为了证明这一点,科学家开始反复试验。
科学家们用气球来代替鱼的小气泡。把气球充满气,放在水池。只见气球浮在水面,不会沉下去。科学家用水灌满气球,放入水池,只见气球马上就沉入水底。
原来,那个像气球似的东西叫鱼鳔。当鱼想沉下水时,就把鱼鳔的气排出,把水灌进。水使鱼变重鱼就下沉。当把水排出变成气体,鱼就浮出水面。
科学家就模仿鱼能潜水的特点,发明了潜水艇。在艇上装个大水箱。当想要艇下潜时,往水箱灌水,就可以下潜。当想要上浮时,就把水箱水排出,就可以浮出水面。
现在潜水艇在军事领域发挥非常重要的作用,为我国国防做出了重大贡献。看来大自然真是人类最好的老师!
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人际关系是我们与人交往必须懂得的一项技能,人际关系的处理好坏关系到我们的人际交往。下面读文网小编整理了关于人际关系的高中英语作文,供你参考!
人际关系的图片
For college students, the stage of going to college is like the turning point of their lives. If they study well and have clear aim about their future, then they can get successful much more easier. But the interpersonal relationship can’t be ignore, it is also the very important lesson for students to learn.
对于大学生来说,大学阶段就像他们生活的转折点。如果他们好好学习,对他们的未来有明确的目标,然后他们可以更加容易取得成功。但人际关系不能被忽视,这也是学生学习中很重要的一课。
When students come to college, learning the knowledge is not their only purpose, they also need to learn how to get along with others. We are not the only person in the world, it is necessary for us to make connection with others. It is very important skill to make a living.
当学生进入到大学,学习知识并不是他们唯一的目的,他们也需要学习如何与他人相处。我们不是世界上唯一的人,有必要与他人进行交流。这是非常重要的技能谋生。
In the college, interpersonal relationship can be tracked in the small issues, such as how to get along with your roommates. Most students never stay away from their parents, so they don’t know the rules to live with so many persons. It is important to be tolerant and nice to others, we need to consider things from the common interest. If we can handle this well, then we have the good social skill.
在大学,人际关系可以从小的方面关注,比如如何与你的室友相处。大多数学生从未远离他们的父母,所以他们不知道和这么多人住在一起的规则。重要的是对他人宽容和友好,我们需要从共同利益考虑问题。如果我们能处理好这个,然后我们就会有良好的社交技能。
So having the social skill is the indispensable lesson for us.
所以拥有社交技能对我们来说是不可缺少的一课。
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导语:高考即将来临,英语作文一直在考试中占着重要的比例,想要英语成绩高分,作文是关键。下面小编给大家整理了一些往年的高考英语作文范文,欢迎大家进行学习参考。更多的优秀英语作文尽在读文网。
Classmate conflicts among senior middle school students are often heard on campus over recent years. These conflicts make the excitement of campus life grow grey and have bad effects on both their living and learning.
Classmate conflicts often rise from daily tiny things such as space where to store books or notes. When personalities don’t mix, the specifics can tear classmates apart and sometimes even lead to serious conflicts. Besides, the fact that classmates hold different attitudes towards certain issues is another factor causing these conflicts.
Classmate conflicts are harmful and need to be settled. Though many people think that school discipline can soften the conflicts, I believe learning to be tolerant with each other can play a more constructive role because it teaches students flexibility and the art of compromise. Meanwhile, communication contributes to the solution to this problem since many of these conflicts result from misunderstanding.
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导语:高考即将来临,英语作文一直在考试中占着重要的比例,想要英语成绩高分,作文是关键。下面小编给大家整理了一些往年的高考英语作文范文,欢迎大家进行学习参考。更多的优秀英语作文尽在读文网。
Smoking and Health-吸烟与健康
人人都知道吸烟有害健康。那些吸烟过度的人一般都活不长。吸烟可能引起多种疾病,其中最严重的是肺癌。另外,吸烟的人还损害了那些不吸烟的人的健康。如果所有的烟民都戒了烟,那么我们就可以享受更清新的空气,也就更健康了。
Everybody knows smoking is bad for health. Those who smoke too much may not live long. Smoking may cause many diseases. The most serious one is lung cancer. Smoking can also do harm to those who don't smoke, If all smokers give up smoking, we can enjoy clearer air.
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导语:高考即将来临,英语作文一直在考试中占着重要的比例,想要英语成绩高分,作文是关键。下面小编给大家整理了一些往年的高考英语作文范文,欢迎大家进行学习参考。更多的优秀英语作文尽在读文网。
It is obvious to everybody that the only way to achieve one's goal is to work hard. Just as the old saying goes "no mill, no meal". Have you ever seen a man who succeeds just by idling about? Of course, the answer is "No". So we know if you want to gain something, you will have pains.
The farmers harvest by a year of arduous work; the scientists gain achievements by years of devoted researches; students get good marks by working hard; even the little ants have their food by working hard day and night. 1 know there are always some people who wait for the opportunities falling on them. They may attribute their failures to lack of good chances. Therefore, there are so many people gaining nothing at last. Clever men know that the more effort they make, the bigger chance they will have to be successful.
So, when others achieve their aspirations and you still gain nothing, don't complain about the unfair fate and don't give up, either. Remember: no pains, no gains.
不劳则无获
大家都知道,获得成功的唯一途径就是辛勤付出。正如那句老话所言:不推磨,没面吃。你见过一令人靠无所事事获得成功吗?答案当然是否定的。因此,我们应明白有劳才有获这个道理。
一年的辛苦劳作使农民获得丰收;科学家经过多年钻研后取得成就;学生努力学习才取得;好成绩;就连小小的,蚂蚁也是靠日以继夜的劳动才获得了食物。但依旧有许多人渴望着天上掉馅饼,他们失败时,会归罪。于运气不好,所以最终他们什么也不会得到。聪明人知道,越努力去做,成功机率越大。
当你看见别人成功而自己仍无所事事时,不用抱怨命运不公,更别轻易放弃。记住,有付出才会有收获。
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【导语】中考临近,下面小编为正在努力奋斗的同学们介绍优秀中考满分作文,希望对你有所帮助。更多优秀作文尽在读文网
和同学之间的人际关系的好坏与否似乎不能决定一个人的学习成绩,现在很多人都不再重视和同学会之间的人际关系了,而是专心学习,可是我不这么认为,我觉得人布恩那个没有朋友,在漫长的人生道路中,有多少同行者,而又有多少的知音!我们要搞好和同学之间的人际关系,我们要维系同学之间的纯洁友谊。
转眼间,又度过了三个春夏秋冬。回首往事,一件件与忧愁历历在目。其中我们曾流下过激动的泪水,流露出美丽的笑容,并且感受过亲切的关心。
“茫茫人海,知音难觅”,在人生长河中,我们要做的是取得成就,在我们努力奋斗的过程中,得到的是朋友的支持,有了友情,往往能推动人们积极向上,共同发展;有了友情,往往能在迷失方向后,找回前进的道路;有了友情,更能感受到生活的乐趣。
翻看一届届的同学们的照片,我不禁感叹时光的飞逝,时光一去不复返,所以我们在遗失了以前的美好后,要珍惜现在的学习、生活,乃至于现在的友情。美好是容易失去的,因为前方等待我们的总是在道路上的坎坷,学习道路上的艰辛。我们会无暇顾及往事的美好,无暇顾及之前高洁的友情,但我们只要把坎坷当作人生道路上的小石子,用力将它踢走,将一切的忧愁化为乌有,来感受友情所带来的温暖。
纯洁的友情往往能掩盖生活中的不快,一个眼神,一个微笑,一句祝福,总能消除头顶上的愁云,所以我们要珍惜现在的友情。不要总认为这些都是奋斗之外的事,这样,只会让人迷失方向,成为弱者,孤独一世。
友情是我们内心的砝码,总能调节我们心中的平衡。随着时间的洗刷,友情会被冲淡,但我们不要等到失去后才懂得珍惜。我们要把握现在的友情,勇敢的去面对。这也许对一生都会有很大的影响,在人生中,有几个力量一起共同奋斗,成功的曙光也许会早一点到来。
让我们共同珍惜现在,把握友情,在人生的道路中携手并进,为自己的理想而奋斗。
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假如你正参与由SSP组织的"素质教育大讨论".请你根据以下要点扩写成一篇"关于良好师生关系"的英语短文,寄去投稿.在文章中你提出自己的观点和看法.字数左右.
可能用到的词汇:motivate vt. 激发 go extremes 走向极端
Possible version:
The Teacher-Student Relationship
A good teacher-student relationship will make learning enjoyable and interesting for the students and teaching worth-while for a teacher.
To set up a good teacher-student relationship, a teacher's behaviour is important. The teacher should motivate the students so that they want to learn. A good teacher should be patient, friendly and strict. Remember not to encourage the students by pushing or forcing them. Being too friendly may cause students to become lazy and stop working hard. On the other hand, being too strict may frighten the students. So a teacher should avoid going extremes in treating his students. And teachers should encourage the students to think independently and learn to study by themselves.
As for the students, they must always respect their teachers. Students should be eager to learn and willing to work hard. It's important to listen with attention in class and it's more important to learn to raise questions and work out problems in new ways.
In conclusion, a good teacher-student relation-ship can be mutually beneficial. The students gain knowledge eagerly and enjoyably and the teacher gains satisfaction from his job.
5,Full imagination of "0"
Possible version:
"0" is like the sun which is rising in the east. The sun shines brightly, which makes our motherland warm and beautiful.
"0" is like the globe which our geography teacher often uses in class. He tells us we can travel all over the world and enjoy the beauty.
"0" is like the football. Our football team packed into the World Cup and our 44-year hope came true. This year, we have already gained many achievements in sports, especially Li Xiaopeng, who has made a great breakthrough in the Olympic event.
"0" is like the moon of mid-autumn night. On the night, every family reunite and spend the night together. We expect that Taiwan returns to our motherland and we believe that the reunion of our country will come true, which is the greatest hope of all the Chinese people.
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