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小发明英文ppt

发布时间:2021-07-08 08:32:44

① 急!!!!!!!生活中的小发明 翻译成英文~~~

Reader usually places the bookmarker (often a piece of rectangular paper or cloth) in the page he is reading before close the book, which will help him to find the page quickly and accurately when he continues the reading. Whereas this kind of bookmarker only help in remembering the page but not exact paragraph he finished last time and the reader therefore has to find himself. However, the precise bookmarker we have can mark the last paragraph he finished. The precise bookmarker is made of plastic with shape of rectangle. There is splint with a incision of U shape on the top of the bookmaker which can be used to fasten the itself on the page. A mobile plastic marker, having two horizontal cut lines, is in the bookmarker and the main body of the bookmark passes through by a way of knitting. Thus the marker can move freely down and up. The terminals of the two horizontal cuts can be bent and increase the friction force to fix the marker in right place. When read to a certain paragraph, put the book marker on the top of the page and move the marker to the paragraph being read and close the book. When you open the book next time, you can find the exact paragraph you want to continue.

② 有关生活中的科学发明小故事,要求是英文版的

小发明,大贡献——圆珠笔的故事

Not many people have given their names to the English language. Among those who have is Laszlo Josef Biro. He was the maker of the first “Biro”, a name still used around the world for his most successful invention(发明), the ballpoint pen.

Biro patented(申请专利) his first pen in 1938. It had a tiny ball bearing in the tip which picked up ink as it turned against the paper. During the Second World War, Biro went to Argentina(阿根廷) where he had some success selling his proct.

However, he never took a patent in the United States. Partly because of this, American companies such as Bic, Parker, and Papermate have dominated(支配、统治) the writing market ever since the ballpoint pen became popular in the 1950s.

③ 关于小发明的英语作文

Good morning,everyone! Today I'm going to talk about inventions.
Inventions are created every day because people would like to make life easier.There are famous inventions like the TV and the bicycle.TV provides us with different kinds of information so that we can know more about the world.We watch entertainment programs to relax ourselves.Besides some learning programs help us with our study.
The bicycle is very useful,too. We go to school or work by bike.It's not expensive that most of us can afford it.It makes no pollution,which is good for our environment.What's more ,bicycle riding is a kind of exciting sports which is quite good for our health.
Although there have been many great inventions, I wish to invent a kind of pen which can help us write more quickly and neatly.When we meet problems in doing our homework or taking exams,it will tell us how to solve them.
That's all .Thank you very much.
早上好,大家!今天我要谈论的发明。
发明创造的每一天,因为人们想使生活更容易。有著名的发明像电视和bicycle.tv为我们提供了不同的信息,以便我们可以更多地了解世界。我们看娱乐节目放松自己。除了一些学习计划帮助我们学习。
自行车是很有用的,太。我们去上学或上班骑自行车。它不是昂贵的,我们大多数人可以负担得起。它没有污染,这是对我们的环境。更重要的是,骑自行车是一种刺激的运动,对我们的健康有很好的。
虽然有很多伟大的发明,我想发明一种笔,可以帮助我们更迅速而整齐地写。当我们在做我们的家庭作业或考试的问题,它会告诉我们如何解决他们。
这是所有的。非常感谢你。

望采纳

④ 小发明 PPT 飞

一天,魏强同学跟爸爸到一个朋友家做客,一进门就把他给难住了:主人家铺内着地毯,不换鞋显得不礼容貌。换鞋吧,脚又有臭味。回家后,魏强就想:如果有一种拖鞋,不用脱下脚上的鞋就能穿,那该多好!后来,他从旅游鞋上的尼龙搭扣得到启发:将拖鞋上的鞋袢装上尼龙搭扣,一按就搭上,一掀就拉开,要肥要瘦不就可以调节了吗?于是他找来一双旧拖鞋,剪开鞋袢,缝上尼龙搭扣,做成了"好客鞋"。这项小发明在第四届全国青少年发明创造比赛中获得了三等奖。
其实,魏强的小发明只不过是将尼龙搭扣这项别人的发明移植到拖鞋上,但使拖鞋有了新的功能,尼龙搭扣也有了新用途,这项小发明也就具备了新颖性。

⑤ 写一篇英文的描写自己小发明的作文

Good morning,everyone! Today I'm going to talk about inventions.
Inventions are created every day because people would like to make life easier.There are famous inventions like the TV and the bicycle.TV provides us with different kinds of information so that we can know more about the world.We watch entertainment programs to relax ourselves.Besides some learning programs help us with our study.
The bicycle is very useful,too. We go to school or work by bike.It's not expensive that most of us can afford it.It makes no pollution,which is good for our environment.What's more ,bicycle riding is a kind of exciting sports which is quite good for our health.
Although there have been many great inventions, I wish to invent a kind of pen which can help us write more quickly and neatly.When we meet problems in doing our homework or taking exams,it will tell us how to solve them.
That's all .Thank you very much.
早上好,大家!今天我要谈论的发明。
发明创造的每一天,因为人们想使生活更容易。有著名的发明像电视和bicycle.tv为我们提供了不同的信息,以便我们可以更多地了解世界。我们看娱乐节目放松自己。除了一些学习计划帮助我们学习。
自行车是很有用的,太。我们去上学或上班骑自行车。它不是昂贵的,我们大多数人可以负担得起。它没有污染,这是对我们的环境。更重要的是,骑自行车是一种刺激的运动,对我们的健康有很好的。
虽然有很多伟大的发明,我想发明一种笔,可以帮助我们更迅速而整齐地写。当我们在做我们的家庭作业或考试的问题,它会告诉我们如何解决他们。
这是所有的。非常感谢你。

⑥ 如何进行科技小发明小制作.ppt

https://wenku..com/view/4d7847c5b8f67c1cfad6b8c4.html?from=search

⑦ 有没有描写进行小发明的英文文章

摘 要:1、利用学校的生物园地,通过配制合理的营养液,完全可以进行草莓的无土栽培。

2、无土栽培的草莓具有生长速度快、长势好、花芽分化 早、开花结果早、产量高的特点。

关键词:培养基、营养液、无土栽培、简单易行

将作物栽培在除土壤以外的培养基上,叫无土栽培。无土栽培具有不占地或少占地、换茬快、环境清洁、产品无污染和生长好、品质优、色鲜味美等优点,为花卉蔬菜、粮食以及水果生产的工业化、自动化开辟了广阔的前景。 一、实践目的 通过对草莓的无土栽培实践活动,使我们初步掌握无土栽培的技术,懂得利用水培法来确定植物必须矿质元素的原理和矿质元素对植物的生理作用,同时也培养了同学们的学习兴趣和实践能力。 二、实践原理 植物根从土壤溶液中吸收水分和无机盐,土壤颗粒主要起着固着作用。根据这一原理,将植物生活所需的无机盐按一定比例配成营养液进行作物的无土栽培。 三、实践方法 采用与泥土盆栽草莓相对照试验,盆栽草莓使用一般的菜园土作固着物,施用化肥和农家肥,进行水肥管理。 四、实践器材 无土花盆(双层塑料套盆或采用罐头瓶、硬泡沫塑料做定植板也行)、草莓苗、营养液原液、天平、洗净的碎石或蛭石、温度计等。 五、 试验与管理 1、试验时间:2007年9月-2006年5月;2007年9月-2006年5月 2、试验地址:校生物园 3、营养液原液:经试验得知,表1为最佳配方。 4、栽培方法:选择无病虫害、植株矮壮、具4-5片叶、顶芽饱满的壮苗,洗净根上泥土后,定植在无土花盆的上盆中,用碎石子或蛭石作固着物,下盆中盛清水,待长出新根后(1周左右)将清水倒掉,换上培养液。 表1 无土栽培草莓营养液原液配方 成分名称 含量(MG/L) 硝酸钙 236 硝酸钾 303 磷酸铵 57 硫酸镁 123 三氯化铁 500 硼 酸 1.2 氯化锰 0.72 5、管理: (1)及时添加营养液。每周补液1-2次。每次50-100ml。进入4月份以后,气温升高、蒸发快,同时正当开花、结果盛期,需肥量大,每2-3天补液1次,并要增加营养液的浓度。一般开花前培养液浓度是 原液∶水=1∶9 开花后培养液浓度为 原液∶水=1.7∶8.3 (2)隔天上午喷水1次,4月开始每天喷水1次,保持相对湿度70-80%。 (3)光照为生物园里的自然光照(注意不要放在直射太阳光下,以免培养液温度升得过高造成根坏死)。 (4)注意及时摘除老叶、匍匐茎。当发现植株下部的叶片呈水平着生,开始发黄、叶柄基部也开始变色时,应立即摘除。匍匐茎消耗养分大,为保证果大质优,发现生在叶片基部的幼嫩线状物--匍匐茎,要及时摘除。 (5)注意病虫害防治。草莓虫害主要有蚜虫和红蜘蛛,可用内吸杀虫剂防治,如甲胺磷、乐果等。病害主要有灰霉病、病毒病等,可用波尔多液、托布津等杀菌剂防治。 (6)注意及时疏蕾垫果。 六、观察记录情况 1、根系在2℃时开始活动,在7℃时开始长新根,最适生长温度为15-20℃,高于30℃时停止生长,并有根部变色受害情况,在-8℃时根系受到冻害。 2、地上茎、叶气温在5℃时开始生长,生长最适气温为15-25℃气温过高过低生长都较缓慢,气温高于30℃以上有老叶焦边现象。 3、气温在5℃以上开始花芽分化,花芽分化最适气温在5-15℃之间,开花在10℃以上,开花盛期在15℃左右。 4、培养液pH值在6.5-7最为适宜。 5、开花结果情况见下表 表2 无土栽培草莓开花结果记录统计表 盆数 盆栽时间 第一花序 第二花序 总果实/株 月/日 叶片数 开花 月/日 小花朵数 果实成熟月/日 开花月/日 小花朵数 果实成熟月/日 数量 重(克)七、结果与体会 1、无土栽培的草莓比盆栽草莓生长速度快、长势好、花芽分化早、开花结果早,从定植到第一花序开花和果实成熟都比盆栽提前一周左右,并极少有病虫害。 2、试验证明,室内无土栽培草莓方法简单易行,成本较低,在家庭中推广种植可充分利用室内空间,既可以观赏、美化环境,又能品尝到气味芳香、营养丰富的春季水果珍品,是一举多得的好事,深受群众欢迎。通过实践,既帮助我们理解了教材,又培养了学习兴趣和实践能力,并促进了无土栽培技术在本地的推广。

⑧ 关于介绍一个小发明的英文作文70词

In 2030,I found no oil,then add the oil.
On the road,the car I found that the noise is very harsh,people upset,and emissions from polluting the environment.To go to work,I also found that the paper used to write very soft,easy to cut through the writing.
After returning home,I began to study three things:that solar silencer-scale solar-fuel table,solar-table soft and hard.There is only one of their watches so much,all three functions together,the above seven key; are the two top-fuel and fuel,nothing can refuel,plus car engine oil,plus watches,electronics,can increase strength ; Hole in the middle of the two is noise and noise,plus a hole,you just click the mute button on the water from a hole in the smoke to come,this was to spray water,it will sound,no car noise,Voiceless people,will not have a camera noise; the following three types of soft and hard,soft and hard choices and the launch of light,the light was such that no matter what the change will be hard or soft,become a rock as soft as bread,paper Will be hard,no matter how small you can not cut across it,but also to write,it is light.These three things in a convenient and affordable.

⑨ 介绍发明的英语作文

The Telephone
The telephone is one of the most welcome and useful inventions.No wonder more and more families have got to use their own telephones today.
The telephone makes things easy in many ways.Especially,after the mobile telephone appears,communication becomes easier and rapider.To students and people going out for business far away from their homes,the telephone can shorten the distance between them and their families.Thus they will get comfort whenever they are homesick or they run into trouble.With the help of the telephone,people can keep in touch with anyone at any time and in any place for urgent help.
All in all,the telephone is so helpful that we can say that nowadays we can not live without the telephone in our daily life.We will further improve the performance of the telephone so as to create better conditions for its development.
电话
电话是目前最受欢迎和最有用的发明之一,怪不得越来越多的人已经使用了自己的电话.
电话在许多方面使事情变得简单,尤其是在移动电话出现以后,通讯变得更加快捷方便.对于那些离家的学生和做生意的人来说,电话缩短了同家人的距离,在此它能蛤想家的人和处在困难中的人一个好的心情.有了电话帮助,人们可以随时随地和任何人联系,寻求紧急帮助.在这种情况下,电话显得尤其重要.
总之,电话是如此有用,以至于如今的日常生活离不开它.我们逐步提高电话功能,为它的发展创造更好的条件.

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