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我发明了自行车作文

发布时间:2021-10-02 16:26:42

❶ 第一辆自行车发明者英语作文。60字

Lu about was born in this surname 507 BC to lose, name class. Because he is LuGuoRen, so people milnwood lu. Some books for or to lose a writing autumn plate. He is engaged woodworking work. When people to make trees to become already flat and smooth board, still do not have what good method. Lu in practice watched, imitate biological form, invented a lot of woodworking tools, such as saws, a plane, etc. How is the invention saws lu? According to legend once he into deep cut trees, carelessly, hand was a kind of grass leaf blade, he ripped off lightly touched, originally leaves both sides have 8-cm-long teeth, and his hand was these small teeth ripped, he also saw in a tree on there is a important weeds locust, two big BanYa also lined by many small teeth, so can quickly grinded blade. Lu from these two things got a inspiration. He thought, if such dentate tools, isn't also can quickly sawed through trees! Hence, he after many tests, finally invented the sharp saws, greatly improving the working efficiency

❷ 写一篇关于自行车的发明,要求写出是被谁发明的,被用来做什么,什么时候被发明的。英语作文,记住要用被

The bicycle is the most successful human inventions of a human machine, is composed of many simple machines.
bicycles is invented in 1790 by Schiff .Bicycle can be used as environmental protection of transport ,and can be used to instead of walking, travel; It can be used to ride bikes to exercise by people.

❸ 发明水上自行车作文

水上自行车,这项运动适合两个人玩。而且两个人脚劲要足,两个的配合也要默契,我和哥哥就玩了一次。
开始了,我们两人使劲踏着板,但因节奏不一样,很难前进,而且还得另外一只手转着方向盘。后来,我想了一个办法,就口令。“一二一,一二一 ```` ”我们踏得快了起来,越踏越有精神,不久就划到了对岸。划回来时,我向哥哥提了个高难度的建议:就是不叫口令,按着刚才的感觉来踏。返回了,我能感觉到我们个自在为自己加油,都在心里叫口令。似乎回来的时间比较快,不一会儿就回到了起点。我们刚想岸上,但阿姨告诉我们是算时间的,共六十分钟,你们只玩了二十分钟,再玩一会儿吧!不只怎么的,有一段劲从我们身上射出来了,接下来的四十分钟,我们竟然来来回回踏了三次,我真没有想到自己和哥哥能这么快学会一样新本领。
我相信每次锻炼不管成功或失败,都是一次进步。

❹ 英语自行车的发明作文

【The Invention of the Bicycle】

A French father-and-son team of carriage-makers, Pierre and Ernest Michaux, invented an improved bicycle in the 1860's. Many early bicycles (called velocipedes, meaning "fast foot," or, more descriptively, "bone shakers") had huge front wheels —— it was thought that the bigger the wheel, the faster you could go. Early tires were wooden —— metal tires were an improvement, and solid rubber tires were added later. A chain with sprockets was added to the bicycle in the 1880's; this was called the "safety bicycle." Air-filled tires were also added in the 1880's. The derailleur gear system was added in the 1970's.

Nowadays,it's important for us to live the low-carbon life. So riding bicycle is the best choice for us to go around. It's not only benefit for our health and also cheaper than cars and the oil is not necessary for bicycles. The better thing is, it was so friendly to environment that it won't proce any polution. So let's go for a ride!

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五星级回答,一定要采纳哦,不要辜负我的辛苦劳动!

【来自英语牛人团】

❺ 发明神奇的自行车我的梦想作文

二十年后的今天,随着科学技术的进步,我们的生活发生了翻天覆地的变化。走在平坦宽阔的橡胶板大街上,你会惊奇的发现,我们身边会出现很多新奇的东西,你看那是多功能汽车,这是百变厨窗,可是,就是自行车的变化不大,我决定发明一种神奇的自行车。你看,这就是我新发明的神奇自行车。这种自行车会给人们,尤其是给学生带来极大的方便。如果想用自行车,可以把自行车平铺在地上,一按按钮,它就会自动膨胀起来,如果不用,可以把气放掉,叠起来,放入皮兜里。自行车上面有三把充气椅子,每把椅子外都有扶手。并且,三把椅子周围还有围栏。在每把椅子旁边,都有一个固定的大盒子,用来放东西。如果遇到下雨天,自行车后面会自动冒出一把大伞,为你挡雨。自行车上有自动音乐盒,当你坐在自行车上休息的时候,把你想听歌曲的名字输入音乐盒中,就可以听到悦耳的音乐了。奇怪的是,这种自行车没有车轮,在车的底部,只有一块充气垫板。你可能会感到奇怪,没有车轮怎么行驶呀?原来,这种自行车是用按所需来操作的。在自行车行驶的时候,充气垫底板离地约30厘米左右,如果在路上遇到大石头等障碍物,只要把手放在音乐盒上一敲,就能增加离地的高度,非常容易地越过障碍物,继续飞快地前行了。同学们,这种新型自行车不错吧?它一定会给你们的生活带来方便的。不过,我现在仍然需要努力学习,争取使这个梦想早日实现。

❻ 英语作文 自行车的发明

A French father-and-son team of carriage-makers, Pierre and Ernest Michaux, invented an improved bicycle in the 1860's. Many early bicycles (called velocipedes, meaning "fast foot," or, more descriptively, "bone shakers") had huge front wheels —— it was thought that the bigger the wheel, the faster you could go. Early tires were wooden —— metal tires were an improvement, and solid rubber tires were added later. A chain with sprockets was added to the bicycle in the 1880's; this was called the "safety bicycle." Air-filled tires were also added in the 1880's. The derailleur gear system was added in the 1970's.

Nowadays,it's important for us to live the low-carbon life. So riding bicycle is the best choice for us to go around. It's not only benefit for our health and also cheaper than cars and the oil is not necessary for bicycles. The better thing is, it was so friendly to environment that it won't proce any polution. So let's go for a ride!

❼ 自行车这个发明真棒450字 作文


真正具有现代形式的自行车是在1874年诞生的。英国人罗松在这一年里,别出心裁地在自行车上装上了链条和链轮,用后轮的转动来推动车子前进。但仍然是前轮大,后轮小,看起来不够协调,不稳定。

1886年,英国的斯塔利,是一位机械工程师,从机械学,运动学的角度设计出了新的自行车样式,为自行车装上了前叉和车闸,前后轮的大小相同,以保持平
衡,并用钢管制成了菱形车架,还首次使用了橡胶的车轮。斯塔利不仅改进了自行车的结构,还改制了许多生产自行车部件用的机床,为自行车的大量生产利推广应
用开辟了宽阔的前景,因此他被后人称为“自行车之父”。斯塔利所设计的自行车车型与今天自行车的样子基本一致了。
1888年,爱尔兰的兽医邓
洛普,从医治牛胃气膨胀中得到启示,他把家中花园里用来浇水的橡胶管粘成圆形,打足了气,装在自行车轮子上,前往参加骑自行车比赛,居然名列前茅,引起了
人们极大的兴趣。充气轮胎是自行车发展史上一个划时代的创举,它增加了自行车的弹性,不会因路面不平而震动;同时大大地提高了行车速度,减少了车轮与路面
的摩擦力。这样,就根本上改变了自行车的骑行性能,完善了自行车的使用功能。由此可知,从18世纪末叶起,一直到20世纪初期,自行车的发明和改进,经历
了大约200年的时光,有许多人为之奋斗不息,才演变成现在这种骑行自如的样式。

❽ 我的多功能自行车作文三百字

未来会有多功能自行车吗?假如有又会是怎么样的呢?我觉得应该是...... 未来,只要有了多功能自行车,大家都不会开会放臭屁的汽车了。多功能自行车有许多按钮∶红色——接听电话 绿色——倾听美妙歌曲 黄色——讲故事 紫色——听收音机 白色——喝饮料〔苹果味,可乐,雪碧,橙汁。自选〕 黑色——负责早,中,晚的饭菜 大家有可能想不到,假如你想听歌,那别人也在听,那不是有噪音风暴了吗?没关系,天蓝色按钮只要一按,那歌只有你自己能听到的。那你假如想吃东西,那车咋开呢?也没关系,可爱桃红色按钮帮你解决问题,只要按了它,自行车就全自动帮你开,吃完了只要再按一下,你就可以自己开了。但是你假如没有事情也要自行车帮你开的话,它就会半个小时也都没有功能效果,这样你就不会缺乏运动啦! 你是不是觉得这种自行车很好呢?虽然现在还没有,但我相信很快就会发明出来的!

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