Some people think studengts need not do any housework。They think the only thing students need do is to study well。 I don’t think so。 It is good for students to do some housework for three reason。
Firstly,to do some housework can make you independent。You can’t depend on others all your life。So,you should learn to do some housework now。
Secondly, to do some housework can keep you healthy and strong ,some hard housework can be regarded as a kind of physical exercise。
Finally, to do some housework can share your parents’ work 。They must be happy if you say” Have a rest ,and I will do the housework”
So I think it is good for students to do some housework。
1.再读课文,讨论交流下列问题:
⑴作者为什么提出“敬畏自然”?
⑵为什么说“敬畏自然”就是“敬畏我们自己”?
(分小组讨论、交流,然后请小组代表发言。
要求:阐述观点,有理有据,一定要结合课文内容,不能脱离文本。
教师归纳:
⑴因为人类常常与自然对立,有时违背自然规律,受到了自然的惩罚,只有认识自然、爱护自然,人与自然才能和谐发展。所以作者提出要“敬畏自然”。
⑵人类与自然都是孕育生命的组成部分,都是平等的生命,只是存在的形式不同,所以敬畏自然,就是敬畏生命,就是敬畏我们自己。
展示课件(学生课前做好准备:
绿草如茵,树木成林,鸟飞长空,鱼翔浅底等自然风光的图画。
学生看后谈感受,教师小结:
大自然是人类之母,人类一直享受着他的恩惠,在她怀中壮大,高天流云、小桥流水、大漠孤烟、黄河落日无不给我们以美的享受。然而随着现代科技的进步,人类已破坏了自然,自然母亲已伤痕累累。看看漫天的沙尘,污浊的空气,脱皮空腹的山峦,日渐枯竭的水源……这就是人类在“征服”和“改造”自然的过程中,接受自然回馈的礼物。人与自然到底是什么关系?人类又该怎样对待自然呢?今天就让我们走进并感悟严春友的《敬畏自然》,或许我们就会多一份爱护自然的责任。
as we know , water is very important to man, we can’t live without water. the amount of water which is suitable to drink is less and less. but some people don’t care about it .they waste a lot of water in their daily life. even worse, they pour dirty water in to rivers. they throw rubbish into rivers , too. many rivers and lakes are seriously polluted.something must be done to stop the pollution. only in this way can we live happily. if we don’t save water, the last drop of water will be a tear-drop of us.
we know that despite the fact that seventy percent of the earth's surface is covered with water, only a little part of it is fresh water. yet the demand for fresh water in our daily life and in industry seems great. moreover, with the expansion of the population and development of industry, the amount of the fresh water needed will increase even rapidly. it is estimated that if such a trend continues, the fresh water on earth will be exhausted very soon. what is worse, more and more water resources are being polluted, making the water unfit to use.
in addition,we must warn the people of the importance of water and the danger we are facing.for example, in most asian societies where rice is the staple food, the water used after cleaning rice contains various nutrients for plant growth and is an excellent detergent to flush the toilet. furthermore, the intriguing idea of converting the inexhaustible sea water to fresh water supplies will be the ultimate solution.
我们曾学过一篇课文《种树郭橐驼传》。课文中的郭橐驼所种的树或移植的树,没有不成活的,有人效仿他,但没人能比得上。这是为什么呢?郭橐驼说:"我并不是能让树木活得长久,并且繁殖得多,只是能顺应树的自然生长规律,让它充分发展罢了,而别的种树人却不是这样,他们栽种时,根弯曲不能伸展,根周的土壤换成新的。爱惜树太用心,担心得太过分,更严重的还用手指甲划破树皮,检查是否成活,摇动它的树干来看土培得松还是紧,这样使树的天性一天天远去。虽说是爱护它,实际上是害了它;虽说是担心它,实际上是与它作对。"种树的方法使人们得到休养生息的.方法。
燕国寿陵有个少年,听说赵国都城邯郸的人走路的步伐非常优美,便不顾路途遥远,特地到那里去学步伐。那里的人走路确实与寿陵人不一样,并优美得多,他觉得不虚此行,打算好好地学。因此,他跟在人家后面模仿,但怎么学也学不会。于是他放弃了原来的步伐,照邯郸人的步伐走路。结果,到头来不但邯郸人的步伐没学会,反而还把自己原来的步伐给忘了,不得不爬回寿陵去。从此"邯郸学步"就广为流传了。这个典故告诉我们,因为一个目标而刻意地去改变自己,不但学不到别人的长处,反而会把自己原来的优点和本领也丢掉。模仿就是模仿,不但永远不可能成为真他,反而永远失去了真我,可悲呀!
水是一切有机体的主要组成部分,全球动植物和40亿人体内含有约11200亿吨水。人类社会依赖水而生存发展。古代,人类对水取利避害,适应水而生存;近代,人类对水兴利除害,兴建工程,开发水利,控制水害;现代,随着社会和生产的发展,地球上可资利用的水日趋短缺,水体受到污染,严重影响人类生存的环境,人类逐渐认识到水是一种重要资源和环境因素,从而在更高的水平上开始对水开展了新的兴利避害活动。
世界气象组织1996年初指出:缺水是全世界城市面临的首要问题,估计到2050年,世界2/3以上的人口将生活在城市,而全球有46%的城市人口缺水,必须平衡社会经济发展和城市淡水供应管理二者之间的关系,进行水资源的储存、输送和管理的大规模工程建设。
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