英语阅读
题目
英语阅读
第34题
Cars of 2000 will travel the nation’s highways in never-before-dreams-of safety,comfort,and convenience.These cars will float along never touching the ground,and therefore will have no need for wheels.
Annoying highway vibrations,caused by the rotations of the disc-and-tire wheels,will be things of the past.The coming highway passenger cars will literally fly above the road,supported on columns of air compressed by turbine-driven fans.
The car without wheels has been called a “flying car”,and,in a sense,that’s just what it is; however,it will not back out of the family garage,start down the street,and then suddenly go quickly upward heading for some distant point.On the contrary,to avoid problems in aerial navigation,the wheel-less vehicle probably will travel no more than three inches above road surface.It will travel over fairly rough road and even over smooth water.
The inevitable problems of maritime regulations,severe weather conditions,and running
答案
1.C (from the second sentence in the second para)
2. not sure for this one. A or C
3.A (from the second sentence in the third para)
4.D (I think waterfall is not considered smooth water and the last sentence mentions there are problems of maritime regulation. Thus I think waterfall is the least fit to travel compared with the above 3)
5. B (last sentence)
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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