为什么下雨作文英语【一】
Life has its ups and downs, and only true friends always stay around. Like anyone else, I have got many friends. They often help me when I’m in trouble. Especially, when I fail in an examination, they always care for me and encourage me to study harder. Last year, when I was hurt in a basketball game, my friends took me to the nearby hospital at once and look after me by turns. In my eyes, friends are the most precious wealth that one should treasure all his life.
为什么下雨作文英语【二】
我跑到妈妈面前不解地问：“妈妈，为什么下雨天蜗牛会成群结队的爬在墙壁上呢？”妈妈虽然并不感到奇怪，但是也不太了解，想了半天才说道：“双一，这个我忘记了，你到《十万个为什么》上面查找一下吧。”我只好去书上找了。
我在《十万个为什么之超级动物宝贝》上找到了有关于蜗牛的信息，上面说小蜗牛喜欢在潮湿的晚上和雨天出来活动，这是因为蜗牛体内有很多水分，一旦被太阳晒干就活不成了。所以，当天气晴朗，太阳高照的时候，蜗牛不敢出来，总是把身子缩在壳子里，隐藏在太阳照不到的阴暗潮湿的角落里，保持身体水分。而下雨天，到处都是湿淋淋的，这时候正对蜗牛的胃口，它便慢慢的爬出来觅食。在干燥的冬夏季里，蜗牛会用藻膜将自己封在壳子内，紧贴在树上休眠，以度过干燥时期。哦，原来是这样呀！怪不得我在冬天和夏天都看不到可爱的蜗牛呢！原来它躲在潮湿的.角落里呀！
通过认真的观察，真的感悟很大，我不但发现了蜗牛的小奥秘，还明白了一个道理——要想发明创造，就必须从小养成发现问题并学着解决问题的能力！
为什么下雨作文英语【三】
Why students can't help wearing expensive things which are famous brands?
The reason why they prefer to wear expensive clothes is just for face. Some students thought the more expensive they wear, the more confident they are. Only wearing brand clothes can they become proud. Some students are afraid to looked down if they don't wear brands things. It is easy for students to compare what they wear.
As far as I am concerned, I don't agree that students pursue famous brand. Most students can't earn money by themselves. We can't waste the money to buy expensive things which are not useful. It is hard for parents to make money. Remember, the main task of the students is to study.
为什么下雨作文英语【四】
白噪声是天然的安眠曲。白噪声是指功率谱密度在整个频域内均匀分布的噪音。不同于其他噪音，白噪音会使人感到平静，更易入睡。人在特别安静与特别嘈杂的环境下都会睡不着，但是在相对舒缓、有规律的声音环境下会很容易入睡，比如雨声、落叶声、转动的电扇声，还有老教授讲课的声音。一些神经衰弱的失眠患者还会专门去购买专门的白噪音发声器，以帮助睡眠。
雨天气压低，交感神经不给力。交感神经与兴奋有关。当天气晴朗时，空气的含氧量高，能够为人体充分补充能量人的交感神经兴奋，活动意向更积极；而到了阴雨天，气压降低，空气的含氧量减少，交感神经处于低落状态，人就会出现在雨天犯困的情况。
褪黑素也参与了捣乱。人体在光线昏暗的情景下会增加褪黑素的分泌，其作用就是让人产生倦意；反之，光线明亮则褪黑素分泌减少。下雨天，天色昏沉，光照时间不足，会使人的褪黑素分泌增加，人困马乏也就不足为奇了。
可能与进化有关。人类的许多行为都与早期进化有关。比如，人类对草丛“沙沙”的.声音特别警觉，这是源自对蛇类的天生恐惧。男子在挑选配偶是以白为美，是因为肤色白的女子更显年轻，也可能具有较高的社会地位。
同样，雨天好棉业可能与进化有关。远古时代，人类一般住在山洞或茅草屋里面，晚上睡觉时会非常担心野兽来袭。而在下雨天，野兽一般不会出现，人们也会放松警惕，获得短暂的安全感。经过几千万年的进化，人们沿袭了这种习惯，雨天在他的潜意识里意味着“安全”，人们可以在这样的天气里放下戒备，让紧张的神经舒缓下来，做一个甜美的梦。
看到这儿，你是否想起了童年的某个雨天，自己慵懒地躺在船上听雨声呢？
为什么下雨作文英语【五】
Long, long ago, there were two brothers, the one rich and the other poor. When Christmas Eve came, the poor one had not a bite in the house, either of meat or bread; so he went to his brother, and begged him, in God's name, to give him something for Christmas Day. It was by no means the first time that the brother had been forced to give something to him, and he was not better pleased at being asked now than he generally was.
"If you will do what I ask you, you shall have a whole ham," said he. The poor one immediately thanked him, and promised this.
"Well, here is the ham, and now you must go straight to Dead Man's Hall," said the rich brother, throwing the ham to him.
"Well, I will do what I have promised," said the other, and he took the ham and set off. He went on and on for the livelong day, and at nightfall he came to a place where there was a bright light.
"I have no doubt this is the place," thought the man with the ham.
An old man with a long white beard was standing in the outhouse, chopping Yule logs.
"Good-evening," said the man with the ham.
"Good-evening to you. Where are you going at this late hour?" said the man.
"I am going to Dead Man's Hall, if only I am on the right track," answered the poor man.
"Oh! yes, you are right enough, for it is here," said the old man. "When you get inside they will all want to buy your ham, for they don't get much meat to eat there; but you must not sell it unless you can get the hand-mill which stands behind the door for it. When you come out again I will teach you how to stop the hand-mill, which is useful for almost everything."
So the man with the ham thanked the other for his good advice, and rapped at the door.
为什么下雨作文英语【六】
Study is our student's personality.But many students will ask, why we must learn knowledge. Is knowledge so important to us?If we don't need to pass the exam, should we still need the knowledge?
As I am concerned, study is not only a personality of students, but also a personality of all people throughout their lives.People need to learn the knowledge whoever they are.If people don't learn knowledge, there will have no way to do things and become ignorant about world.Can you imagine a world that no people have knowledge?Leaving knowledge,the world would no get progress.If people don't learn knowledge, there will be no people to know how to use the computer ,how to write the news, even how to communicate with others.
So learning knowledge is a very important thing, it consists of our world.
