题目
新概念英语第53课Hot Snake.A bird had snatched up the snake from the ground.为什么要用过去完成
全文内容
At last firemen have put out a big forest fire in California.Since then,they have been trying to find out how the fire began.Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away.Yesterday the firemen examined the ground carefully,but were not able to find any broken glass.They were also quite sure that a cigarette end did not start the fire.This morning,however,a firemen accidentally discovered the cause.He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line.In this way,he was able to solve the mystery.The explanation was simple but very unusual.A bird had snatched up the snake from the ground and then dropped it on to the wires.The snake then wound itself round the wires.When it did so,it sent sparks down to the ground and these immediately started a fire.
全文内容
At last firemen have put out a big forest fire in California.Since then,they have been trying to find out how the fire began.Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away.Yesterday the firemen examined the ground carefully,but were not able to find any broken glass.They were also quite sure that a cigarette end did not start the fire.This morning,however,a firemen accidentally discovered the cause.He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line.In this way,he was able to solve the mystery.The explanation was simple but very unusual.A bird had snatched up the snake from the ground and then dropped it on to the wires.The snake then wound itself round the wires.When it did so,it sent sparks down to the ground and these immediately started a fire.
提问时间:2020-10-27
答案
A bird had snatched up the snake 发生在 He noticed the remains 前,符合过去的过去,故用过去完成.
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
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
最新试题
热门考点
- 1为什么刚体有6个自由度
- 2keep updated
- 3已知:定义在R上的函数f(x)=asinwx+bcoswx(w<0)的周期为π,且对一切x∈R,都有f(x)≤f(π/12)=4
- 4土方换算系数中“虚方体积”是指什么啊 求教
- 5衣食所安,弗敢专也,必以分人谁能帮我翻译一下呀~
- 6“我欲乘风归去,又恐琼楼玉宇,高处不胜寒”反映了词人怎样的心里?
- 7如图所示的三角形,以AB为轴旋转后得到的立体图形的体积是多少?
- 8他们一定是在海边拾贝壳 they must be ()()shells by the sea
- 9Rice is healthy food.对Rice提问
- 10已知地球质量为M万有引力常量为G现有一质量为m的卫星绕地球做匀速圆周运动其轨道半径为r求卫星线速度大小和要有引力做的功