in our life,there are many great inventions,such as the light,thepencil,the the age of 6,my father brought a car,he took me to school onthe first day of was so exciting.i fell in love with this invention onthat car can go anywhere and save time,but it also pullutes ourenvironment.i holp i can invent clean cars.i hope the cars will enter everyfamily,and i love cars best.

发明演讲稿篇2

hi, everyone. as we all know,many great inventions have brought greatchanges to our life. i think we students can also invent something.

大家好!我们都知道,许多伟大的发明给我们的生活带来了巨大的变化。我认为我们学生也可以发明一些东西。

today i'm glad to be here to talk about what i'd like to invent - a chairthat's good for students' health. it will be made of wood. there will be twosensors in it -- one on the seat, and the other on the back of the chair. whenthe student doesn't sit straight, the chair will remind him .if he sits on thechair for over one hour ,it will make a noise. it won't stop until the studentstands up and leaves.

今天我很高兴到这里来谈论我想发明——一把椅子,对学生的健康有好处。这将是用木头做的。将会有两个传感器，一个在椅子上，另一个在椅子后背。当学生不坐直,椅子会提醒他。如果他坐在椅子上超过一个小时,这将发出噪音。它不会停止,直到学生站起来,离开了。

it will be a useful invention, won't it ?

这将是一个有用的发明,不是吗?

thank you!

谢谢大家!

发明演讲稿篇3

what is my favorite invention?

we knew there had been many inventions at the last century, for example,electric light bulb, telephone, phonograph, mimeograph machine, automobile,airplane, atomic weapon, computer and so on. what is my favorite invention?

personally, my favorite invention should be computer. in the old days, manyscientists took much time to calculate and deal with research data, so theeffective time in doing research was relatively shortened. for millions of timesof calculating per second by computer, the researchers may have enough time tostudy more important issues. the processing of experiment results became verysimple and easy. aren’t those all evidences that the computer is one of thegreatest inventions in the last century, are those?

发明演讲稿篇4

good morning, ladies and gentlemen,

last summer, i volunteered(动词) to work as an english teacher in a primary school for children of migrant workers. to be accurate, i didn't volunteer. i was dragged in literally. when my friends first hit upon the idea of this project. i was all against it. 'what?' to spend my vacation standing in the heat yelling at a bunch of nine-year-olds who couldn't even speak proper mandarin chinese? and besides. there's no pay for my toil. no. i am definitely not going. my friends twisted my arms to have me join them.

unexpectedly，the first lesson i taught turned out a lesson for me. the moment i stepped into the shabby classroom. i was touched by the loud, respectful voices in unison. 'good morning teacher !' instead of fooling around, the children were thirsty for knowledge and efficient in absorbing everything i was able to give them. this made me despise myself for i hadn't even prepared for the class. during the break. i leaned over the squeaky desk, chatting with a sweaty boy in the front row. "without air-conditioning, it's really hot here. are you tired?" not at all. said he. shaking his head. it's fine here. my dad builds asphalt roads. that is really tiring and hot.

as summer advanced. my enthusiasm as a teacher grew. i prepared my lesson carefully and even used some methods my teachers used. i organized many group activities to give the kids fun. strangely enough the heat was also becoming less and less unbearable. soon, my one-month volunnteer came to an end. when i was leaving my last class, i turned back and saw smiling faces and waving hands. never before had i ever had such a feeling of sadness. which was, nevertheless, mixed with a sense of enrichment, fulfillment and happiness. i was paid for my work, amply paid, not in terms of money, but something more valuable.

my english was improved, i was able to teach it, although not very professional. i learned about the grassroots-level society. inside myself a heart is growing. a heart that not only beats for myself. but cares for others as well. the volunteer work gave me a precious little chance of saying thanks. to people like the little boy's father who construct highways and undergrounds, build up modern skyscrapers, and make our cities more and more beautiful. to help the children with their english was all i could do at present to show my gratitude to these unsung heroes. the world may not have been fair to them. so privileged and blessed people like me make their life better. whatever i do for them, however, i know it can't be compared with what they have done to improve the quality of life in our cities. ladies and gentlemen. now i realize that voluntary shouldn't be just a one-time personal experience. it should be a lifetime activity of everybody. many of us are now offering assistance to the needy and to each other and our efforts have indeed made a difference schooling,---- or caring for the elderly in nursing homes, and helping out in 20xx beijing olympics, will not only contribute to the harmony of the world but elevate ourselves as well. emerson once said, "it's one of the most beautiful compensations of this life no man can sincerely try to help another without helping himself" he was right. i hear that my university is going to organize another voluntary teaching program this summer. this time i won't be dragged in. i will volunteer. thank you !

发明演讲稿篇5

in the early nineteenth century, people began to use gas (gaslight), butthe gas pipeline supply by a leak or blockage, very easy to have an accident,people for illumination of reform, very ardent.in fact, edison for himself setthe mission impossible: in addition to improve lighting, but also of thomasedison electric light create a set of power supply system.and he and the dreamluoyuan buddies, sleepless do 1600 repeatedly heat-resistant material and morethan 600 plant fiber experiment, only produced the first carbon wire bulb, can aburning 45 hours.later he more on this basis, the method of continuousimprovement manufacture can ignite 12 hours finally came out with the zhusibulbs.the 19th century the 1980s, edison electric light career succeeded, thissuccess than any previous achievements brought him reputation.in the 1980s,before he had little mistake, intermediate later, although he has made greatachievements, but also common occurance of failure.edison's most not commendableactions is one of his criticism alternating current, say it has side effects,likely cause of death and injury, but he did not add details.so somebody said,"as he such a mess out many inventions that people about others' new inventionsaurday attack, this is very contradictory things." he opposes the use ofalternating current and direct current, so the approve a fierce debate andstubborn in failure.in this respect, reflects the edison became a celebrityafter the stubbornness of started to foster old-fashioned shortcomings.

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发明演讲稿5篇