“一定有办法的,大家动动脑筋!”吴老师鼓励我们说,我们大家于是开始动起手来。有的,把纸直接架在桥墩上后就把书架上去,结果可想而知,桥塌了;有的,把桥夹在书里面,想借助两本书的夹力来托起书,可是书实在是太重了,根本就不可能成功;我也愣在那里,不知所措。
“好了,时间到!”这时只听吴老师又发话了。“看来,同学还是没有动脑筋啊,那么接着我们来玩下一轮,这一轮,对你们的`要求更高了,这一次要把桥墩去掉,看谁能想到办法直接用纸把一本书托起来!”听完吴老师这样一说,我们顿时瞪大了眼睛不知所措。“这怎么可能啊,这就更不可能了,刚刚有桥墩我们都没有办法成功,何况这次没有桥墩呢!”同学纷纷说道,我也是心里想:是啊,刚刚有桥墩还能把桥架起来,现在没有桥墩了,桥架都没有办法架,又怎么能托起书呢?但我突然灵机一动,想出了一个办法,我把纸卷成一个圆桶形,然后把它立在桌上,用书压在上面,果不其然,居然成功了!我心里高兴极了,大声地喊了起来:“老师,老师,我成功了!”随着我这么一喊,全班所有的人都把目光集中到我身上了,看着我那本书那么稳稳地架在桥上,同学们纷纷夸讲着我,吴老师走到我的身边也大声地说:“陈琳真厉害!让我们给她热烈的掌声!”那一刻,教室里响起一片热烈的掌声,我的内心更加的激动起来。
“可是,我能比陈琳更厉害呢!”这时,吴老师神气地对着我们说。听了吴老师的话,我们个个都惊讶得瞪大了眼睛,我的心里也不相信,于是我们大家都全神贯注地看着老师。只见老师拿着一张纸,前后对折,反复对折了好多次,最后叠出了一个“M”形,然后,老师把纸桥架在两本书上就开始往上放书了,一本,两本,我们大家的心都提到了嗓子眼上了,可是那个纸桥却仍然是纹丝不动。这时只见老师手上拿着两本书,凑到了纸桥,兴奋地说:“我的纸桥说,它还能承受两本呢?”我们屏住呼吸,静静地观察着,老师一本一本地加,四本书,纸桥果然还是没有塌。“再放一本大的!”这时陈琅突然说道,“好,我们看看,还能不甘落后能承受。”结果吴老师刚放上去,桥就塌了。
后来,老师跟我们解释了一下:把纸折成M形,纸的厚度增加,张力就大了,承受的力量也就大了;而三角形可以起到稳定的作用,因此承受的书就多而稳了!真是让我增长了见识。
经过这次的实验,我懂得了要仔细观察,多动脑筋,这真是一堂让我难忘的实验啊!
The first day of high school life, I have some thoughts and feelings。 The passage of time can always give people some special things。
In the new environment, I feel a bit excited。 Be able to recognize the new students and teachers is my greatest gains。 In the next three years, we will learn、work and progress together to make our dreams come true。 I will have new friends, and share the joy and sadness with them。 The process of learning is also a growing process。
Similarly, I will also face many difficulties。 I might have difficulties in learning and getting along with classmates , bearing some pressure in life。 However, I will get stronger and get through every step of high school three years。
The start of this year's first class show strong,unusually brilliant.China's first female astronaut liu Yang first appeared as a guest speaker,she spoke about full of poetry,vivid tells the story of the beauty of the space,the beauty of the earth,at the same time also tells the story after she returned to the earth the beauty of human nature,tender feeling and touching.
Said liu himself in the space,more was shocked by the beauty of the earth,"this generation inhabit our planet,in the boundless universe should appear so magnificent,so dazzling,she segmental arc edge is visible,covered with a layer of blue and white halo,sunlight cast in the sea deep shallow blue,vein and clear,clear long coastline.The earth is so beautiful,exquisite planet,in a dark universe,quietly coruscate gives a dreamy,blue light,like a Mosaic on the black velvet of the sapphire,it is a kind of beyond the beauty of language.It is my home,where are my dearest friends and family,at that moment,I was so far away from the earth,but it is so close to".
Liu Yang can't wait to return to the bosom of the earth in space,"after such a trip to space,saw the smallness of the earth,to better understand the earth's greatest; left earth,and realize the dependence on the planet is infinite,infinite love.I love the sunshine here,love the fresh air here,love the pure water here,love the rivers and lakes here,love the mountains,plains,love live here diverse species,love living here we human beings".
The most beautiful,brought color to our life,warm every hurt heart,healing,gives people hope,the future and courage,they are the most beautiful,is also the most lovely!
Yesterday I saw the school first class, feeling very deep. This year's theme is beauty is near. Beauty, a very common words, we are literally think beauty is beautiful. So, what is the true meaning of beauty?
With the question I look up, the first lesson is to find beauty. How to find? It makes people lost in thought. When everybody zhang two monks confused, host "shenzhou" 9 astronaut liu Yang, please tell for you. Liu said, the universe is endless, much bigger than she had expected: long, on the other side of the galaxy, the star vega, mercury, Saturn... . All panoramic view. Time is the most interesting of weightlessness, everyone one by one all floating in the air, pens, book ah of what are messy, can be fun. Finally, she concludes the essence to find beauty, love sports, and more to find the beauty around, so beauty will show in front of you.
LiuLiLi mountain elementary school teachers as the second class of the bell took to the podium, she is only 20 years old this year, in this flower age, many girls are enjoying, who will suffer poor mountainous areas! Can't liu, she is out of the mountain, liu with great love for the children's happiness, she hold the children art, gymnastics and other mountainous area children can't learn knowledge. Liu planted beauty, transfer the beauty. Let the beauty of the mountains germination, results. So she right because when people called the most beautiful teacher, this is to create beautiful?
Gymnastics team player Chen yibing showed also in the field. His contribution for our country in the London Olympic Games, the host asked him why he is going to win? His answer: before the race, they are seen as a failure. But because of his companions support each other, encourage each other. Make them very first champions league. The companion's encouragement is beauty.
Yu Dan is the most let me have a feeling of the teacher's words. She hit a harmonious beauty, for example, put eggs, tea, carrot in boiling water, eggs, hardened into the fragrant tea, tea radish was soft. That means what? Hardened eggs tend to be the kind of person who are "really low on agreeableness, and most men are single minded and turnip are too weak, they couldn't get hold of degree dating, so don't be understood, so being bullied. And the tea? It combines with water, this kind of person is good at unity collective, so they are best represents the harmonious beauty.
The school first class with only an hour and a half, but let me benefit a lot.
第二天,我像往常一样6点半就起床,我早已把昨天祈祷的事情忘记了,穿好昨晚就准备好的.礼服,还没走到客厅,妈妈就走了进来,对我说:“红色大暴雨,中小学生幼儿园及托儿所停课一天。”听到这一消息,我才把昨晚祈祷的事想了起来,发了一句莫明其妙的话:“神啊!”我顿时眉开眼笑、心花怒放。心里喷射出灿烂而快乐的火花!妈妈看了看我,一句话也没说,摇摇头走开了。
这一天我该怎样度过呢?我心想着,是在家里窝一天,还是在书乡中度过呢?还是找邻居伙伴好好的玩一天,我又呆呆地坐在床上思索着。最后,我决定先去再睡会觉,等睡完觉起来,再做思考,我躺下床,可是却久久不能入睡,心想:讨厌的眼睛,总是跟我唱反调,我索性起床走到客厅,打开了电视,调到深圳卫视台,“8:30准时下暴雨”,电视机的最下面出现了这一行字,我看了看电视上面的大钟,已经快8点了,我一点看电视的心情都没有,眼睛死死地盯着大钟,因为我心里起了一念头,那就是想证明一下天气预报是否准确,时间就这么一分钟一分钟地过去了,果然到了8:25,轰隆隆的雷声惊醒了我,我赶紧跑到窗户,透过窗户我看到了一幅景像:天空突然灰暗了下来,像蒙上了乌沙,大树夹着大风拼命地摇摆着,北环路上车子在缓缓地行走着,人们却急匆匆跑到安全的地方,8:30,果然,下起倾盆大雨,啊!太神了,我心想着,天气预报还真灵。雨越下越大,天空也渐渐亮了起来。
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