我写了一篇英语作文,
题目
我写了一篇英语作文,
Water
Water is important to us.We can't live without water.But in our Earth,there are one-fourth water is fresh water.Therefore,we must save water.We can do in our daily lives.Don't take a bath,you can take a shower intead of it.If you find a dropping tap,you must fix it in time.Remember that water is necessary for us.You mustn't waste water.So let's try our best to make our Earth more and more beautiful.
答案
there are one-fourth water is fresh water.中,表达四分之一,用 a quater就可以了.
We can do in our daily lives.do后的宾语呢?加个it 如何?
If you find a dropping tap,you must fix it in time.用on time.表示按时.
结尾的try one’s best to do sth.用得不错!
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
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