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.
下面谈谈学习毅力的.问题。如果你有坚强的毅力,那么世界上就没有什么难事。学英语关键是能够持之以恒。
在学习过程中,你应该制订一个计划,一天记住几个单词,一天记住一两个句型。你不要小看“持之以恒”的力量。举个例子:
如果你一天背5个单词一年就是1825个单词,相当于初中三年再加高中一年零两个月的词汇量。如果你坚持两年你就能住3650个单词,相当于中学六年包括本科两年的词汇量。
在制订计划时要遵循以下几项原则:
1、计划要切实可行,不要好高务远。上面的例子已经说明,只要你能坚持天天学习,英语一定能学好。
2、要有坚强的毅力,每天都学习,不因为某些事而耽误了学习。如果哪天的工作没有完成,第二天一定要补上。连续不学习的时间不要超过两天。
3、要有一个帐本,哪天学会了哪几个单词,哪几个句型一定记录在案。
4、为了把单词、句型真正学到手,第二天一定要复习第一天的,第三天一定要复习第二天和第一天的内容。
5、所选择的课本可以是一套或两套,千万别太多。实际学英语的书没有什么好坏之分,只要你能按照一套或两
The Role of Mobile Phone in People's Communication
The popularity of smartphones has exerted great influence on the way people communicate, so much so that an increasing number of individuals contend that face-to-face communication is being replaced by texts and images on the mobile phone.
There are more than one angle to consider this phenomenon. On one hand, it is pleasantly acknowledged that smartphones shorten the distance between families and friends. Even people from different sides of the globe can share pictures, feelings and thoughts through various types of apps on the phone, thus building a long-distance connection. On the other hand, as the picture warns us, too much smartphone addiction interferes with people's real-life communication. Statistics show that over 70 percent of face-to-face communication consists of facial expressions and body language, which is why people should stay away from mobile phones when they have the chance to actually talk and communicate with others.
In a word, mobile phones act as an appropriate platform where people can always stay in tough however long the distance is, but a wise man should know when to put down his phone.
我出生在北京什刹海地区的后海南沿,从我家出来只需过一条小马路,就能来到河边。河边有许许多多的'参天大树,它们的树冠很大,树荫下非常凉快。小时候,妈妈一天要带我去好几次河边。夏天到了,来这里休息乘凉的人就更多了。
有一天下午,天气热得像一个大蒸笼,树上的知了不厌其烦地叫着。我和妈妈正在河边乘凉,突然有人叫我“大权儿,热不热?”我抬头一看是喜子哥,就大声叫了 一声:“喜子哥”。当时喜子哥光着膀子,背心搭在肩上,脸红红的,脸颊两边都是汗。喜子哥笑嘻嘻地问我:“大权儿,热不热?”喜子哥跟我们家是邻居,比我 大好多,已经考上大学了,他特别喜欢我,经常抱我,逗我,跟我玩打仗。喜子哥还是我们这一带的游泳高手,还获得过不少奖呢!
当天晚上,忽然听见外面跟打架似的,又哭又喊,非常热闹,妈妈也急忙带我出去看,我当时太小,不知发生了什么事,只看见王妈妈哭得死去活来,好多人在搀着 她,劝她。我有点害怕,妈妈就把我抱了起来,这时我看见妈妈眼里也有泪,就一边帮妈妈擦着眼泪,一边不停地问妈妈:“王妈妈怎么了,怎么了?”当时妈妈什 么也没说,抱着我回家了。
后来我才知道,就是那天,因为天气炎热,喜子哥一个猛子扎下去游泳,就再也没有上来,自从喜子哥死了以后,王妈妈好像变了一个人似的,整天愁眉苦脸,神情 恍惚,我们再也听不见她那开朗的笑声,整个院子也变得沉寂了。王妈妈再也不像以前那样逗我抱我了,只是一看到我就嘱咐我:“千万不要去河边游泳,千万别 去。”说完就呆呆地走开了。
当时我不知道什么是难受,只知道再也看不见那个喜欢我的喜子哥了。有时我静静地躺在床上,期待着,有人一开门,叫一声:“大权儿,叫我了吗?咱们玩打仗?”这个笑嘻嘻叫我的人就是喜子哥。
这件事使我终身难忘,我真的希望大家:珍爱生命 远离野游。
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