Dear mary:
How are you doing these days? I write this letter for expressing our appreciation of your great entertainment .
We have a very nice treavel in London,and have a wonderful impression on the senery there.London is a very beautiful city .
Not only the views but also the delicious food excited us.Facing this charming city and its abundant culture,we deeply felt its really a huge honor.
Would you like to accept our invitation for travelling in China?We sincerely Wish you a pleasure journey here.
Expresses our thanks once more .Have a nice day !
Yours,
Lihua
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.
一天,我和小朋友们在外面玩儿。
正当我们你追我赶玩得起劲时,一位白发苍苍的老伯伯吃力地拉着一辆车,车上堆着像小山一样高的蔬菜从我们面前经过`。老伯伯累得满头大汗、气喘吁吁,身上的衣服湿漉漉的,整个人就像刚从水缸里捞出来的一样。车子走得非常慢,就像蜗牛在爬行。看到这一幕,我连忙对大家说:“只要帮助了别人,就会快乐自己!”在我的号召下,大家齐心协力一起帮老伯伯去推车,帮老伯伯把菜送到了集市。老伯伯连声夸赞我们是好孩子。
此时,夕阳西下,晚霞烧红了西方的天空。我们一个个累得像关公一样,涨红了小脸。可是,我们心里乐开了花,就像喝了蜂蜜似的,快乐无比!因为我们帮助了别人。
一天,我和小朋友们在外面玩儿。
正当我们你追我赶玩得起劲时,一位白发苍苍的老伯伯吃力地拉着一辆车,车上堆着像小山一样高的蔬菜从我们面前经过`。老伯伯累得满头大汗、气喘吁吁,身上的衣服湿漉漉的,整个人就像刚从水缸里捞出来的一样。车子走得非常慢,就像蜗牛在爬行。看到这一幕,我连忙对大家说:“只要帮助了别人,就会快乐自己!”在我的号召下,大家齐心协力一起帮老伯伯去推车,帮老伯伯把菜送到了集市。老伯伯连声夸赞我们是好孩子。
此时,夕阳西下,晚霞烧红了西方的天空。我们一个个累得像关公一样,涨红了小脸。可是,我们心里乐开了花,就像喝了蜂蜜似的,快乐无比!因为我们帮助了别人。
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