the sun rises in the east and sets in the west, which is caused by the rotation of the earth as you all know. but have you ever thought of the effect of the earths rotation on man and can you imagine what would happen if the earth stopped rotating?
the radius of the earth is about 6,370 kilometres. it takes the earth 24 hours to rotate once. objects on the earths equator move with the earth at a speed of 460 metres per second, and the air close to the earths surface turns at the same speed. if the earth stopped rotating suddenly, the air would keep flowing eastward at a speed of 460 metres per second. the wind would be fourteen times as powerful as a hurricane. at the same time sea water would rush eastward at a speed of several hundred metres per second, which might do damages much greater than a seaquake would do. obviously, men could hardly stand such a catastrophe.
even if such a catastrophe would not happen, there would be a great temperature difference on the two hemispheres of the earth, and the four seasons of the year would no longer occur because a day and a night would be as long as a whole year instead of 24 hours. all this would greatly affect the life of human beings, imals and plants and that would cause worse results than anything imaginable.
My holiday life will be busy but interesting. I am going to do my homework every day so that I can finish my homework on time.I am going to the library to borrow some books and go to the shops to buy some books so that I can read some interesting books. I am going to play sports such as playing basketball, table tennis, swimming and so on . Of course I am going to help my parents do some housework because they are busy with their work every day.I am going to spend a week in Shanghai with my parents so that we can see the expo. I am sure I am going to have an interesting and happy summer vacation.
农历七月二十二,就是青岛民间的财神节了,这一天,所有经商的、炒股的、买外汇的甚至普通老百姓,大宴宾朋,感谢财神的到来,感谢亲朋的支持,大吉大利、欢欢喜喜、热热闹闹一整天。2002年青岛市举办了第一届青岛市财神民俗旅游节,以后每年举办一次,各大商会都会参加。市民对于财神节的庆祝也是比较隆重,做生意的市民大都会选个吉时放几挂爆竹,预示着自己的生意红红火火。
自清康熙年间始,每到这天,便进入节日的气氛,从早上起,潍坊的家家产户就忙着购买香纸鞭炮,置办供品佳肴,气氛不亚于中秋节和春节。通常是到下午四时城区乡村的人们就提前下班收工;下午五时许各单位、商铺开始燃放鞭炮,人人脸上喜气洋洋,互相祝福着。
鞭炮花炮声此起彼伏,热闹非凡,整个城区沉浸在一片节日的气氛中;下午六时许,鞭炮声再度密集起来,城区乡村的家家产户便在财神像前摆供燃香,磕头祈祷,供品大都是八色供或十二色供,富庶人家还会供蒸鱼整羊;供奉祈祷完毕,全家人再煮水饺摆宴席:庆贺一番;供祭庆贺仪式通常持续到晚八时。
the summer vacation had come round again. i was happy that i could forget about school at least for a while. lest i fool around all through this summer vacation, i made a plan as to how to spend it. first, i thought i should go over all those things my teachers taught in the previous term so that i could have a better understanding of them.
then i thought i should take up some forms of exercise, such as walking, running and rowing, to keep me physically strong. it stood to reason that with such a good plan i should make the best of my vacation time. i did, because i lived up to what i had planned.
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