在我的脑海里,有许多记忆珍珠:红色代表开心、蓝色代表难过、黄色代表童年、黑色代表委屈……今天,我又打开了脑海,捧起一颗黄珍珠,一瞬间,我好像又回到了那一天……
那一天下午,爸爸妈妈出去到楼下的超市给我买吃的去了,临走前,妈妈对我说:“如果有事给我们打电话;还有,有人敲门不要开。”我点了点头,便开始拼积木。
我正拼得起劲,突然看见地上有一个黑色的东西,吓得我跳起来就退,可是它紧紧地跟着我。我心想:“这是啥呀?黑不溜秋的,还会追人!它一定是个鬼,我要摆脱他!”于我连滚带爬地跑到了厨房。
这时我看见了一个筐子,便顺手盖了上去。哈!它出不来了。我得意地走起来了,还对它做鬼脸。可是,他竟然出来了,并且筐子也没有动。这可吓了我一大跳,心想:“啊!这个鬼还会穿墙术,我好像打不过他。”我想甩掉它,晕头转脑地跑到了客厅。偶然看到了电话,想起向妈妈求救,马上拨通了电话,带着哭腔向妈妈喊道:“妈妈快来救我,有个鬼要吃掉我!”这时,我看不见了“鬼”,以为它已经走了,就长舒了一口气。这时,妈妈赶回来了。我一回头,又看见了它,吓得一屁股坐在了地上,妈妈问我:“儿子,鬼在哪?”我用颤抖着的手指着它:“那不就是吗!”妈妈见我手指着影子,一头雾水,当她明白是怎么一回事后,大笑起来。我差点就哭出来了:“人家就要被鬼吃掉了,你还笑!”妈妈勉强止住笑对我说:“傻孩子,那是影子。”经过妈妈半天的解释,我才明白那是影子。
轻轻关上我的记忆脑海,我的回忆也戛然而止。
童年像一扇窗户,你打开了这扇窗户,就会发现童年有很多美好的回忆。 童年中的趣事是最珍贵的。小时候,我们因为幼小无知而闹出了许多笑话,打开记忆的匣门,童年趣事便接踵而来。我5岁那年,还在幼儿园里上学,年少无知的我为记忆的宝库里增添了一些耀眼的色彩。
又是一年的夏天,我感冒在家,爸爸、妈妈都去上班了。我闲得无聊,在家里东转转、西逛逛,走到鱼缸前,我喂了一些鱼食,平时最爱吃鱼食的小鱼们都沉在水底,不肯浮上来吃食。莫非它们也感冒了,我想这可不行,异想天开的我,立即拿出一包抗病毒冲剂,把里面的药颗粒全都倒了进去,只见小鱼们全浮上来,大口大口吐着泡泡,我还以为它们在吃药呢,见小鱼们“吃”了我十分高兴,于是我就回屋去看电视了,也没在意小鱼的死活。我看电视正看得来劲,也没注意爸爸下班回来了。突然屋外一声呵斥:“鱼怎么都快要死了!虎子!你在鱼缸里放了什么?”我赶快跑到客厅,只见爸爸指着鱼缸问我。我一头雾水便把事情的经过告诉了爸爸,爸爸一听却笑了起来,而当时的我,这个当事人还在发愣不知道怎么回事。 ……
许多童年趣事直到现在都令我记忆犹新,有的事我现在回想起来还会大笑。当然我也明白了我现在长大了一定要明辨是非,在做事前先想一想,做到“三思而后行”!
1.1 水利水电工程对气候的影响
区域性气候是由大气环境和水体分布决定的,大气环境和水体分布在自然状态下是平衡的,然而,在人类修建水库和灌溉工程后,或多或少地会对水体的分布造成影响。水是构成大气环境的重要因素,正是因为水循环过程才有了气候的千变万化,水体分布的改变打破了原有的平衡,造成了气候的无法调控甚至灾难气候。
1.2 水利水电工程对降雨的影响
水利水电工程的不断建造会使水库不断增多。经过阳光的照射,降雨量会大大增加,大量的降雨对于部分区域是“甘露”,对于部分区域却会引起洪涝灾害。据调查发现,地势高的迎风面降雨会增加,反之降雨会减少,即在距离水库比较近的地方,降水量反而会下降。水利水电工程的建立原本是为推动当地经济发展,现在看来,似乎有些顾此失彼。长此以往,降雨时间分布也发生了变化,比如南方的大型水库的夏季降雨量就会减少,冬季降雨量就会增多。综上所述,水利水电工程的建造对降雨量、降雨分布、降雨时间分布等方面都产生了影响。无形中的变化却造成有形的破坏。
1.3 水利水电工程对水体的影响
当水库建成以后,大量的水容纳于一个地方,库内的水无法及时流出,造成“死水”的堆积,水库储存较久的水会让被淹没的植物腐烂更快,大量腐烂的植物会消耗水中的氧气,水中形成大量的二氧化碳和沼气甚至毒物质和难降解的重金属,形成次生污染源。
1.4 水利水电工程对物种的影响
在大坝开闸时,水流速度过快,产生了大量的氮氧,幼鱼会因此死亡。鱼的大量死亡会对土壤造成恶劣影响,土壤的污染又会破坏植物。水库蓄水会造成水库周围土地大量被浸没,长久以来,周围的土地不再适合植物生长,不充足的氧气、土壤浓度的改变将会造成难以逆转的生态危机。库区周围的土壤过于湿润,导致养分不足,植物无法扎根立足于此,造成大量的植物失去了赖以生存的家园。
1.5 水利水电工程对人们生活的影响
水利水电工程在施工过程中难免会产生并没有处理完全的废水,废水直接通过排放管道进入河道,造成河水的污染。水污染的严重化给人们的日常生活带来了不方便,比如,施工过程中会产生一些难闻的气味,含化学物质的气体进入人体内,潜移默化地伤害着呼吸系统;河道水污染造成周围的居民饮用水质得不到保障,长期住在附近的居民无法享受良好的水源,对生活质量有所影响;施工期间,难免会产生噪声,影响了周围居民的生活。综上所诉,水利水电工程的建立对人们造成了许多影响,空气质量的下降也使得生病率大大提升。
1.6 社会及人文资产破坏
为了经济的发展,各地政府都争先恐后地要求在本地建立水利水电工程。然而,水利工程建设对社会与人文资产的'影响巨大。如果一个地方确定要建设水利工程,则当地就要为此准备,人们世世代代居住的地方选为建筑地后,当地百姓不得不背井离乡,曾经无数的记忆却成为现代化器械工作的场所。同时,如果水库恰好选中有大量文物古迹的地方,则为了大力开发水利水电,人文资产必定受到损坏,得不到保护的文化只能在经济发展中消失殆尽,唯一残存的可能只能来源于老一辈的记忆。因此,在进行水利水电工程设计和选址时需要慎重决策,尽量不迁移群众和破坏人文资产。
Sometimes I dream about life in the future. What will it be?
Perhaps some people will go to the moon for a holiday or even live on the moon,and some scientists will build cities under the sea to make people live there. We can have a medical examination or do some shopping without leaving our homes,which makes the life more convenient. Maybe we will also do some shopping and work at home.
And I'm sure there'll be more educational programmes on the radio or TV or by the Intemet or videophones,so perhaps some children won't need to go to school every day. They'll study at home.
In the future,all electric equipment at home is under the con-trol of computers. People can learn about the situation of the house by working on the computer at the office. No people like doing housework. Maybe each family will have a robot. Every day we can tell the robot what to do-shopping,housework and so on. believe the dream will come true some day.
Elephants are the biggest wild animals in land, in the world. But now, they are also in danger. Let me tell something to you about them.
Elephants are big and strong and they are grey. They have long trunks and tusks, so they look a little dangerous. But in fact, they’re friendly towards each other and hardly hunt people.
Elephants have ears like fans, they make them look bigger and bigger.
They live in a group together for many years, they’re a big family. They also have good hearing and good sense of smell. Elephants can do lots of things if people train them. For example, they can carry heavy things, can do as a vehicle, ext.
Badly, it’s difficult for elephants to survive in the world usually because of people. If people sell tusks, they will make lots of money.
So, many people kill elephants for their tusks. Living areas are also an important reason of the die out of elephants.
Animals are our friends, we should protect them, or the number of wild animals will getting smaller and smaller.
What our life will be like in the future?When I was a little boy,I always asked myself this question.At that time,I had no idea what Internet was.But now,we use it every day.We can't live without it.Internet is become so popular and so convenient.
Just forget it.What our life will be like in the future?For example,in ten years.I think that in ten years our life will be much more colorful,our computer will be much powerful,and we can do almost everything on the internet including seeing a doctor.What about your future life ?Will you share with me?
Elephants are the biggest animals on the land.They are big and srong.They have big ears and trunks.They can walk quietly and help people move heavy things. They are very friendly,kind and always live together.But the number of elephants reduces.People kill elephants for their ivories.We must take action to protect them or else they will extinct from the world.
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