新概念二册81-87课作文
题目
新概念二册81-87课作文
每课二篇,急用
答案
Lesson 86 Out of control
The moment the speedboat struck the buoy,both men were thrown into the water.As it moved off very quickly across the water,the men began to swim towards the shore.Turning in a circle,the speedboat came straight towards them.After it had just missed them,they swam until they were out of danger.When the boat returned it had lost speed.Soon all the petrol was used up and it floated across the water.
(76 words.)
Lesson 87 A perfect alibi
At the time of the murder,the man claimed that he had been travelling on the 8 o'clock train to London and had arrived at work on time.When the inspector asked if a later train would get him to work on time,the man agreed it would but said that he always travelled early.The inspector suggested that he was lying because,that morning,the 8 o'clock train broke down,so the man must have caught the 8,25.(79 words.)
其他的抽空再写,
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
热门考点