The important to protect environment
"No water, no creatures" It's ture that the human being will run the end if there is no water in the world. Man can live for about 7days without any food, but 3 days without water. But I know that environmental pollution in our country is becoming more and more serious. In the country,we can see women washing clothes in the river. Litter is floating on the river. Waste water produced by a chemical factory is being discharged into the river. We do not see any fish in the river. The river is not so clear as before. Water quality is very bad. I am worried about it because water is important to all living things. Man can not live without water. I hope people pay more attention to this problem, especially the government. Try to control the pollution of water as early as possible. At last I would like to say, "To protect environment is to protect life."
猜你喜欢
- 1如果A乘B=7(A、B是非0自然数),那么A和B的最大公因数是( ) A和B的最小公倍数是( ).
- 2已知二次函数f(x)=ax2+(b-8)x-a-ab,且不等式f(x)>0的解集为x∈(-3,2); (1)求a,b;(2)试问:c为何值时,不等式ax2+bx+c≤0的解集为R.
- 3科学(科技)给人类带来的危害
- 4- Have you ever to f____ countries?- Yes,I went to America and England last year
- 5下列整式中,那些是单项式?那些是多项式?是单项式的请写出系数、次数.是多项式的请写出有几项,次数是多少
- 6①Eighty p____ of our students come to school by bike.填空
- 7某人骑车从学校去县城先以每小时12千米的速度下山,而后以每小时9千米的速度通过平路到达县城共用去55分钟,返回时他以每小时8千米的速度通过平路,而后以每小时4千米的速度上山回学校又用去1.5小时,问学校到县城有多少千米
- 8商店里为什么所有商品的单价都用两位小数,以元做单位?
- 9和月亮上的足迹差不多的作文
- 10如图要求:只闭合开关S1时,电灯发光,电铃不发声;只闭合开关S2时,电灯发光,同时电铃发声.并连接实物.