优秀的英语演讲稿范文五篇

优秀的英语演讲稿范文五篇

英语演讲稿1

how many people here in this room smile more than 20 times per day? raise your hand if you do. oh, wow. outside of this room, more than a third of us smile more than 20 times per day, whereas less than 14 percent of us smile less than five. in fact, those with the most amazing superpowers are actually children who smile as many as 400 times per day.have you ever wondered why being around children who smile so frequently makes you smile very often? a recent study at uppsala university in sweden found that its very difficult to frown when looking at someone who smiles. you ask, why? because smiling is evolutionarily contagious, and it suppresses the control we usually have on our facial muscles. mimicking a smile and experiencing it physically help us understand whether our smile is fake or real, so we can understand the emotional state of the smiler. 英语演讲稿2

in a recent mimicking study at the university of clermont-ferrand in france, subjects were asked to determine whether a smile was real or fake while holding a pencil in their mouth to repress smiling muscles. without the pencil, subjects were excellent judges, but with the pencil in their mouth, when they could not mimic the smile they saw, their judgment was impaired.in addition to theorizing on evolution in the origin of species, charles darwin also wrote the facial feedback response theory. his theory states that the act of smiling itself actually makes us feel better -- rather than smiling being merely a result of feeling good. in his study, darwin actually cited a french neurologist, guillaume duchenne, who used electric jolts to facial muscles to induce and stimulate smiles. please, dont try this at home. 英语演讲稿3

in a related german study, researchers used fmri imaging to measure brain activity before and after injecting botox to suppress smiling muscles. the finding supported darwins theory by showing that facial feedback modifies the neural processing of emotional content in the brain in a way that helps us feel better when we smile. smiling stimulates our brain reward mechanism in a way that even chocolate -- a well-regarded pleasure inducer -- cannot match.british researchers found that one smile can generate the same level of brain stimulation as up to 2,000 bars of chocolate. (laughter) wait. the same study found that smiling is as stimulating as receiving up to 16,000 pounds sterling in cash. thats like 25 grand a smile. its not bad. and think about it this way: 25,000 times 400 -- quite a few kids out there feel like mark zuckerberg every day.and, unlike lots of chocolate, lots of smiling can actually make you healthier. smiling can help reduce the level of stress-enhancing hormones like cortisol, adrenaline and dopamine, increase the level of mood-enhancing hormones like endorphin and reduce overall blood pressure. 英语演讲稿4

one day in 1819, 3,000 miles off the coast of chile, in one of the most remote

regions of the pacific ocean, 20 american sailors watched their ship flood with seawater. heyd been struck by a sperm whale, which had ripped a catastrophic hole in the ships hull. as their ship began to sink beneath the swells, the men huddled together inthree small whaleboats.these men were 10,000 miles from home, more than 1,000 miles from the nearest scrap of land. in their small boats, they carried only rudimentary navigational equipment and limited supplies of food and water.these were the men of the whaleship essex, whose story would later inspire parts of moby dick.we know how fear feels, but im not sure we spend enough time thinking about what our fears mean.as we grow up, were often encouraged to think of fear as a weakness, just another childish thing to discard like baby teeth or roller skates.

英语演讲稿5

we learn that there are no monsters hiding under the bed, and not every earthquake brings buildings down. but maybe its no coincidence that some of our most creative minds fail to leave these kinds of fears behind as adults.the same incredible imaginations that produced the origin of species, jane eyre and the remembrance of things past, also generated intense worries that haunted the adult lives of charles darwin, charlotte brontand marcel proust. so the question is, what can the rest of us learn about fear from visionaries and young children?

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