a tv picture starts with a tv camera. some tv cameras are big and some aresmall. the cameras in tv studios are big. camera operators roll the big camerasaround on wheels. there are usually several big cameras in a tv studio. camerasused outside a tv studio are smaller. tv camera crews take the smaller camerasto news and sports events.

some cameras send out live pictures to your tv set. some cameras makevideotapes that get played later on a television program.

all tv cameras need electricity to work. a camera operator points thecamera at a scene. the camera picks up light from the scene. it changes thislight into an electric signal called the video signal. a microphone changes thesound of people talking or music playing into an electric signal called theaudio signal.

演讲稿200英语篇2

nearly 150 years ago, in one of the darkest years of our nation's history, president abraham lincoln set aside the last thursday in november as a day of thanksgiving. america was split by civil war. but lincoln said in his first thanksgiving decree that difficult times made it even more appropriate for our blessings to be (and i quote), "gratefully acknowledged as with one heart and one voice by the whole american people."

this week, the american people came together with families and friends to carry on this distinctly american tradition. we gave thanks for loved ones and for our lasting pride in our communities and our country. we took comfort in good memories while looking forward to the promise of change.

but this thanksgiving also takes place at a time of great trial for our people. across the country, there were empty seats at the table, as brave americans continue to serve in harm’s way from the mountains of afghanistan to the deserts of iraq. we honor and give thanks for their sacrifice, and stand by the families who endure their absence with such dignity and resolve.

at home, we face an economic crisis of historic proportions. more and more americans are worried about losing a job or making their mortgage payment. workers are wondering if next month's paycheck will pay next month's bills. retirees are watching their savings disappear, and students are struggling with the cost of tuition.

it's going to take bold and immediate action to confront this crisis. that's why i'm committed to forging a new beginning from the moment i take office as president of the united states. earlier this week, i announced my economic team. this talented and dedicated group is already hard at work crafting an economic recovery plan that will create or save 2.5 million new jobs, while making the investments we need to fuel long-term economic growth and stability.

but this thanksgiving, we're reminded that the renewal of our economy won't come from policies and plans alone. it will take the hard work, innovation, service, and strength of the american people. i've seen this strength firsthand over many months -- in workers who are ready to power new industries, and farmers and scientists who can tap new sources of energy; in teachers who stay late after school, and parents who put in that extra hour reading to their kids; in young americans enlisting in a time of war, seniors who volunteer their time, and service programs that bring hope to the hopeless.

it's a testament to our national character that so many americans took time out this thanksgiving to help feed the hungry and care for the needy. on wednesday, i visited a food bank at saint columbanus parish in chicago. and there, as in so many communities across america, folks pitched in time and resources to give a lift to their neighbors in need. it is this spirit that binds us together as one american family -- the belief that we rise and fall as one people; that we want that american dream not just for ourselves, but for each other.

that's the spirit we must summon as we make a new beginning for our nation. times are tough. there are difficult months ahead. but we can renew our nation the same way that we have in the many years since lincoln's first thanksgiving: by coming together to overcome adversity; by reaching for -- and working for -- new horizons of opportunity for all americans.

演讲稿200英语篇3

the grateful heart

gratitude is an attraction that no one can resist it. we can not have big love, but we can have small love to make big thing. when the words of te geisha appear, i know that we must have a grateful heart.

we live in a world full of gratitude, i think there are four main kinds of people we should be grateful.

first, we’d better be grateful for our parents. we are the apples of their eyes. they spend lots of time developing us with all of the energy left in their souls. my parents take great care of me, just like gardeners taking care of their flowers. when i was a child, mother often told me that, study hard, and you will make something of yourself. now i grow up, i thank the love of my parents.

second, we ought to be grateful for our teachers. they let me fly leisurely in the sky of knowledge. never be a quitter in face of hard problem! it is often been by my teacher. they help me to free from ignorance and develop my moral sense, and becoming a qualified and knowledgeable builder of our motherland. at no time of the year are thank-you notes are more obvious than june, the months of graduation. last but one, we shall be grateful for our friends. a friend indeed is a friend in need. as you sow, so shall you reap. we share happiness and reserve together. they need not be concerned about us, but they did, so we shall be grateful for them. like helping them buying something,inviting them to have a dinner, etc.

last but not least, be grateful for yourself! after studying hard for 12 years, we become an outstanding student ofanhuiuniversity of technology. listen closely to your thoughts, be honest with yourself, and take quiet time to listen to your inner voice.

at the thought of so many people’s love around us, we must be grateful. give others roses, and the sweet smell will leave in your hands. if everyone makes a contribution to the gratitude, the world will become much more beautiful! i believe that if we can show our gratitude more clearly to our beloved ones, we are sure to bring about more happiness and joy. now, let us see your grateful heart as soon as possible!

thank you again for listening!

演讲稿200英语篇4

results are not important, but they can persist for many years as a commemoration of . many years ago, as a result of habits and overeating formed one of obesity, as well as indicators of overall physical disorders, so that affects my work and life. in friends to encourage and supervise, the participated in the team now considered to have been more than three years, neither the fine rain, regardless of winter heat, a day out with 5:00 time. the beginning, have been discouraged, suffering, and disappointment, but in the end of the urging of friends, to re-get up, stand on the playground.

in fact, i did not build big, nor strong muscles, not a sport-born people. over the past few years to adhere to it, because i have a team behind, the strength of a strong team here, very grateful to our team, for a long time, we encourage each other, and with sweat, enjoying common health happy. for example, friends of the several run in order to maintain order and unable to attend the 10,000 meters race, and they are always concerned about the brothers and promptly inform the place and time, gives us confidence and courage. at the same time, also came on their own inner desire and pursuit for a good health, who wrote many of their own log in order to refuel for their own, and inspiring.

as the saying goes: steed leap, not ten steps, ten inferior horse riding, gong-in give up. indeed, a much needed one and give up the spirit of wedge. adhering to the this is indeed a need for very perseverance. insist on a day to rest in accordance with the fixed time, leisurely days gone lax, especially late at night to rest and change the way of life, which seems young, it is inconceivable, and since five o'clock the morning, a little bright days, it is a good time to dream. a friend of mine has a joke that you had on the old age. in fact, we have no longer a dream, only to establish goals, determined to move forward towards a direction, will eventually achieve the ideal. assessment units have been my female colleagues as the most stamina of men, i would like them to the high uation, perhaps i am more dedicated to see their side.

individual meters on a county to run the second prize winner in the podium, from the ministers and deputy head of publicity, who took over a certificate of merit and enjoy the award-winning treatment of athletes, the stronger the confidence in the future to participate in sports. this is me, not the end, but a milestone, but also a new starting point.

say, the organization also realized the purpose of running fitness.

演讲稿200英语篇5

dear students, our way of life is always sunny, blue skies, which in the end the most dazzling ray of sunlightit was said to be excellent academic performance, it was said to be given to help others ... ... and i think that our way of life of the most brilliant sunshine should be reported to belong to the temple map, help us to grow thanks to everyone. yes, the institute of thanksgiving is a feeling, the institute of thanksgiving, but also a character. as teachers and our students, the most important gratitude is a school. schools to give us a big growth stage of life: bright and spacious classrooms, new desks and chairs, air-conditioned and well-being, as well as multi-media facilities, has provided us with an attractive learning environment. read one book bright and clean rooms, provides us with knowledge of the marine tour; flat beautiful big playground, provided us with a good place for the exercise, and pottery room, computer room, dance room, multi-purpose hall, and so on, no school is not out of devotion to our selfless love! however, in these beautiful places, often with some notes of discord. read books in one room, some students read the book, abandonment, i do not know the original release, there is more tear, using the phenomenon of the book; when the red and green and white artificial big playground to open it selfless embrace, and some of the scenes of discord hurt our eyes: a wide range of confetti, colorful tang zhi, and scattered in all corners of the shell seeds, chewing gum, etc. the list goes on of these! students, please put your hand on his chest ask ourselves: "i do a thanksgiving schoolstudents, let us now work together, with their good health habits to school thanksgiving, thanksgiving, so that the flowers on campus and open more beautiful.

亲爱的同学们，我们的人生之路总是阳光明媚,晴空万里，到底哪一缕阳光最耀眼？有人说是优异的学习成绩，有人说是给予别人帮助……而我认为在我们的人生路上最灿烂的阳光应该属于知恩图报，感谢帮助我们成长的每一个人。是的，学会感恩，是一种情怀,学会感恩，更是一种情操. 作为教师和学生的我们，最要感恩的就是学校了。学校给我们了一个人生成长的大舞台：宽敞明亮的教室，崭新的桌椅，冷暖空调、以及多媒体设施，为我们提供了一个优美的学习环境。窗明几净的图书阅览一体室，为我们提供了畅游知识的海洋；平坦美丽的大操场，为我们提供了锻炼身体的好去处，还有陶艺室，电脑室、舞蹈室、多功能报告厅等等，无不是学校对我们奉献出的无私的爱！可是，在这些美丽的地方，却常常有着一些不和谐的音符。在图书阅览一体室，有的同学看完书后，乱扔乱放，不知道放回原处，更有甚者还有撕书、拿书的现象；当红绿相间的人工大操场向我们敞开它无私的怀抱时，又有一些不和谐的景象刺痛了我们的眼睛：各种各样的纸屑，五颜六色的糖纸，还有散落在各个角落的瓜子壳、口香糖等等这些举不胜举！同学们，请你把手放在自己的胸口扪心自问：“我感恩学校了吗？同学们，就让我们共同努力吧，用自己良好的卫生习惯来感恩学校，让感恩的花儿在校园内开放的更加美丽。

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