月亮掉进海里以后三年级作文【一】
你们好吗？
我是生活在三千年前的地球人。我无法想象三千年后地球的样子，就像你们也只能用猜测去触摸感知我们现在的生活一样。三千年后，地球还好吗？你们还好吗？
21世纪初的地球，还有着鸟语花香，天空，还有着一片一片的蔚蓝。不知道三千年后的你们，有着怎样的环境。今天，人类已经登上了外太空，迈出了探索外太空的脚步。或许，3000年后，太空漫步对于你们来说，平常得好像一次周末的郊游。是啊，人类在不断地进步。也许你们找到了更好的生存空间。可是，地球还好吗？
未来人，请你告诉我，地球还好吗？我想知道，在我们这个时代，已经开始恶化的地球生态环境，是不是已经恢复了原来的美丽？可是，那些和我们一起生活了许多年的伙伴，正在一个个从视野中消失。五分之一的淡水鱼已经绝种；很多的鸟类在我们这个世界上的现存数量已经变成了个位数；还有美丽的夏威夷蜗牛，大概你们不曾见过它们的样子。世界环境保护协会说，50年内，世界上将有接近半数的生物面临绝种危机。现在的生物物种，还有5000多万种，我想知道，3000年后的地球是个什么样子，会不会单调到只剩下人类？也许不会的，我希望不会的'。你们会把环境保护好的，因为那是我们的家。
未来人，请你告诉我，地球上还有战争吗？当炮火轰炸后的荒凉景象出现在我的眼前，当人们沉浸在失去亲人的痛苦中时，我多想让战争绝迹。3000年后的地球，还有战争吗？一定不会有了，因为我们是一家人，我们会是和平的。我们不会再忍心伤害我们的地球。也许你们，已经做到了和平，请保护好地球，她禁不起炮火的折腾。
未来人，请你告诉我，你们是否快乐？21世纪初的科学家，已经找到控制人类产生快乐的神经。他们可以利用电流使人类产生快乐的感觉。我想，3000年后的人类，该不会只用物理化学的方法产生快乐吧？所以，未来人，请你告诉我，你们是否快乐？我希望你们也可以像我们现在一样，可以每天都开心地笑。而不是只用电脑传输线进行一切的交流。
好了，未来人，我祝愿你们的家园是美丽的、和平的、快乐的，也祝愿你们可以每天都幸福快乐地生活着。
祝地球永远美丽！
21世纪初的地球人
月亮掉进海里以后三年级作文【二】
it was in hot summer that i took a trip to qingdao, a port city in shandong province, one afternoon, i decided to go to the seaside to get relief from the heat. for the first time in my life, i swam in the sea.
at first, i was worried because though i was not a bad swimmer in the swimming pool, the sea was different. the waves coming one after another to the shore made a great noise and i thought they were going to swallow me up. i was terrified. cautiously and slowly, i went close to the water. how cold it was! i was just about to give it up when i suddenly caught sight of a small boy who was about a head shorter than me. weak as he seemed, he went straight into the sea without hesitation. i felt a little ashamed.“what a timid girl i am!”i said to myself.www
encouraged by his bravery , i continued advancing. soon all of my body was covered by water. before i got ready for a dive, a wave came over. it struck my face heavily and the water went into my eyes, nose and mouth. how bitter and salty it tasted! but i was not discouraged at all. i wiped off the water on my face, took a deep breath, and began swimming happily.
the waves became larger and larger, as if the sea was angry with me. when i saw a wave in the distance, i would hold my breath, and just before it came to where i was, i jumped up and easily kept myself from it. how exciting! i was just like lying on the clouds!
all that afternoon, i swam and jumped and had a very good time. when finally i had to leave, i took a last look at the sea. the waves were still beating the shore, but i was no longer frightened. “i must thank that little boy,”i said to myself.“it was he who gave me the courage.”
月亮掉进海里以后三年级作文【三】
放假了，我终于和爸爸妈妈一起来到了海边。海那么蓝，那么宽，一眼望不到边。看着美丽的大海，我不禁跳起舞来。
第二天，我就拉着爸爸去海里游泳。我先戴好泳帽，再穿好泳裤，最后套上救生圈，慢慢地走到海里。开始游泳了，我学着青蛙游泳的样子自己游了起来，两只手不停地向两边拨水。我边游还边跟爸爸玩水呢！爸爸带着泳镜，也套着救生圈。他拿起水枪朝我射来。我想逃，但水的阻力太大，逃不动。“怎么办？”“呵呵！”幸好水枪射出的水柱很短，射不到我。这时，一个大浪冲来，我躲避不及，一连吞了好几口海水，呛我了。“海水好咸啊！”
潮水越涨越高。海水一会儿到我嘴巴里，一会儿到我的耳朵里，我只好上岸了！
