汽車(chē)演講稿篇一:私家車(chē)的影響演講稿
Honorable judges, ladies and gentlemen:
Good morning!
My name is XX, a second-grade postgraduate student from school of XXin XX. Today, I want to talk about the topic “Choose green travel, lead a low carbon life”.
With the rapid development of economics and increase of urban population, more and more people buy and use their own cars. Yet opinions of private cars vary from person to person. From my perspective, I don’t think the advantages of this trend for individuals overweigh the disadvantages for environment.
Certainly,no one can deny the fact that there are so many advantages to drive private cars.Cars allow us to pursue high speed, strong passion and personal freedom. We can go anywhere at any time instead of waiting for a long time just to find the bus is full or the environment is so noisy. Owning a car even becomes a fashion and the symbol of status and wealth to some degree.
However, the disadvantages can’t be ignored. Well, everyone, have your city been suffered from haze weather? Are you forced to wear the mask to avoid breathing poisonous air? Perhaps most people here will say “yes”. A horrible fact is that the vehicle exhaust accounts for more than 20 percent of the sources of haze in China. Except for the air pollution, the noise caused by the sound of car
horns also threatens people’s health.
All in all, there are many things we can do to improve our environment. In my opinion, we are supposed to choose green travel which means we should take public transportations,such as buses,subways and public bicycles, or carpool with friends when we go out to minimize the use of private cars. No matter how hard it is, as long as we understand the importance of protecting our environment, take action to choose green travel and lead a low carbon life, our lives will be better.
That’s all, thank you!
Besides,we can’t ignore thebenefits that public transportation brings us.Firstly,it’s beneficial to eliminate the problem of parking space.As we all know,owning to the increase of private cars,the issue of parking space is terribly serious.Secondly,it’s effective to saveresources.It’s time for us to save resources,or we’ll regret sooner or later.Last but not least,it’s efficient to relieve air pollution.Once,the earth was an ideal place to live in.The sky was blue the air was clean and fresh.Unfortunately,the earth is not the same as before.It’s suffering from severe pollution.
Ladies and gentlemen,have you ever noticed that our streets are becoming more and more crowded?Have you ever realized that many resources are not inexhaustible?Have you ever realized that our environment is deteriorating?I believe most are aware of these problems.So let’s take action from now on.Whenyou are not in a hurry for something ,please take a bus instead of driving your own car;when you are going to travel,please endeavor to choose public transportation rather than private cars;when you are tired of the bad atmosphere because of public transportation,please bear in mind you are sacrificing the temporary comforts for a good environment.
We can’t live without air.We also have only one common home –the earth.If each one of us can make a contribution to it,we will make our home a greener place to live in ,not only for ourselves,but for many generations.
汽車(chē)演講稿篇二:汽車(chē)知識(shí)講稿
一、 汽車(chē)的發(fā)明與發(fā)展
。ㄒ唬┢(chē)誕生之前,馬車(chē)就是人類(lèi)最好的陸上交通工具。
。ǘ┛?奔馳 就是現(xiàn)今德國(guó)大名鼎鼎的“奔馳”汽車(chē)公司的第一代祖宗,戴姆勒--奔馳汽車(chē)公司的創(chuàng)始人之一。 他被稱(chēng)為“現(xiàn)代汽車(chē)之父”。
他在英國(guó)人瓦特發(fā)明蒸汽機(jī)和德國(guó)人奧托發(fā)明內(nèi)燃機(jī)的基礎(chǔ)上,開(kāi)始思考把發(fā)動(dòng)機(jī)按在車(chē)上,代替馬。
? 1878年開(kāi)始研究新型內(nèi)燃機(jī)。
? 1879年首次研制成功火花塞點(diǎn)火內(nèi)燃機(jī)。
? 1882年開(kāi)始嘗試把發(fā)動(dòng)機(jī)安裝在三輪車(chē)上。
? 1885年他的三輪車(chē)研制成功。
? 1886年1月29日獲得專(zhuān)利,被公認(rèn)為世界第一輛實(shí)用的汽車(chē)。 ? 德國(guó)另一為工程師哥特里布·戴姆勒也同時(shí)造出了一輛用1.1
馬力汽油發(fā)動(dòng)機(jī)作動(dòng)力的四輪汽車(chē)。
? 1883年,他發(fā)明成功了世界第一臺(tái)高壓縮比的內(nèi)燃發(fā)動(dòng)機(jī),成
為現(xiàn)代汽車(chē)發(fā)動(dòng)機(jī)的鼻祖。
? 1926年,奔馳和戴姆勒公司合并成為戴姆勒-奔馳公司,生產(chǎn)“梅
塞德斯-奔馳”牌汽車(chē)
進(jìn)入20世紀(jì)以后,汽車(chē)不再僅是歐洲人的天下了,特別是
美國(guó)的亨利· 福特。1908年福特“T”型車(chē)問(wèn)世,福特流水式
生產(chǎn)線建成,開(kāi)始了嶄新的汽車(chē)生產(chǎn)方式。初期的汽車(chē)還有使用實(shí)心木輪的,后來(lái)使用了自行車(chē)所用的輻條式的鐵制車(chē)輪,外套實(shí)心橡膠輪。這種實(shí)心輪當(dāng)車(chē)速超過(guò)16km/h時(shí),車(chē)就會(huì)跳起來(lái),使司機(jī)和乘客顛簸得無(wú)法忍受。英國(guó)人鄧洛普發(fā)明了用于自行車(chē)的充氣輪胎后不久,1895年,法國(guó)的米其林兄弟就制造出了用于汽車(chē)的充氣輪胎,使汽車(chē)行駛的舒適性大大提高。
(三)中國(guó)汽車(chē)發(fā)展歷史
1.無(wú)汽車(chē)工業(yè)時(shí)期
2.創(chuàng)建階段(1949~1965年)
3.成長(zhǎng)階段(1966~1980年)
4.全面發(fā)展階段(1981~2000年)
5.飛速發(fā)展階段(2000年~至今)
二、 汽車(chē)品牌與文化
福特汽車(chē)的標(biāo)志是采用福特英文Ford字樣,藍(lán)底白字。由于創(chuàng)建人亨利·福特喜歡小動(dòng)物,所以標(biāo)志設(shè)計(jì)者把福特的英文畫(huà)成一只奔跑的`小白兔樣子的圖案 。
1873年,擔(dān)任奔馳發(fā)動(dòng)機(jī)廠技術(shù)部主任的哥特里布·戴姆勒,在給妻子寄去的明信片上,信手畫(huà)上了一顆三叉星以代表他當(dāng)時(shí)的住處,并特別聲明:總有一天,這顆吉祥之星將會(huì)照耀我畢生的工作。1909年6月戴姆勒公司登記了三叉星做為轎車(chē)的標(biāo)志。
奔馳汽車(chē)的標(biāo)志是現(xiàn)在簡(jiǎn)化成為形似汽車(chē)方向盤(pán)的一個(gè)環(huán)形圈圍著一顆三叉星。三叉星表示在陸、海、空領(lǐng)域全方位的機(jī)動(dòng)性,環(huán)
形圈顯示其營(yíng)銷(xiāo)全球的發(fā)展勢(shì)頭。汽車(chē)與體育運(yùn)動(dòng)、旅游、影視娛樂(lè)等密切相關(guān),形成了一種獨(dú)特的汽車(chē)文化。你能說(shuō)出與汽車(chē)有關(guān)的影視作品的名稱(chēng)來(lái)嗎?
三、汽車(chē)的未來(lái)
1.新能源汽車(chē)將會(huì)大力推廣,如:油電混合汽車(chē)、純電動(dòng)汽車(chē)、太陽(yáng)能汽車(chē)等。
2.汽車(chē)安全標(biāo)準(zhǔn)將會(huì)更加嚴(yán)格。
3.汽車(chē)排放控制標(biāo)準(zhǔn)將會(huì)更加嚴(yán)格。
4.使用更多替代鋼、鐵的輕質(zhì)材料,如高強(qiáng)度特種鋼、鋁合金、碳纖維等,以降低車(chē)輛自重。
5.各種電子、電控、智能裝置將越來(lái)越多地應(yīng)用在汽車(chē)上,越來(lái)越智能。
同學(xué)們,汽車(chē)的未來(lái)在你們手中。只有刻苦學(xué)習(xí)科學(xué)知識(shí)才能掌握汽車(chē)制造的核心技術(shù)。希望不久的將來(lái),你們能設(shè)計(jì)和研發(fā)出完全自主的、高品質(zhì)的汽車(chē)。
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