以“why is it important to protect our environment?”为主题写一篇3分钟的演讲稿,紧扣主题,内容完整.
题目
以“why is it important to protect our environment?”为主题写一篇3分钟的演讲稿,紧扣主题,内容完整.
答案
The world we live in is becoming more and more intolerable because of environmental destruction.For example ,forest destruction results in decrease of planting land and unpleasant weather.In addition,man is faced with problems of water pollution and air pollution.
A lot of measures have been taken.Planting trees helps improve and beautify the environment.Besides,laws concerning environmental protection have been put into effect and achieved good results.
However,the problem of environmental protection remains far from being solved.On the one hand,the environment pollution and destruction are getting worse and worse in the modern world.On the other hand,the lack of knowledge about the importance of protecting environment hinders the solving of the problem.In a word,there is a long way to go before we enjoy a clean and comfortable world.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
- 怎样提高蔬菜产量
- 跟好朋友说心里话,可用什么成语表示?
- “最后一课”中,作者反复写钟声,用意何在?
- 一条毛毛虫从幼虫长到成虫,每天长一倍,18天长到20厘米,当长到5厘米时需要多少天
- 数列an小于等于bn小于等于cn,bn收敛,cn-an的极限为0,证明an、cn均收敛
- 铁的晶格常数
- 近代美国历史上最重要的事件之一 英文怎么说
- 某人有一笔资金,他投入基金的概率为0.58,购买股票的概率为0.28,两项同时都投资的概率为0.19
- 孙子兵法讲得是什么?最好具体点
- 能不能帮我把这组经纬度换算为平面坐标.(东经102°69′ ,北纬25°03′)
热门考点