下面是英语四级阅读单选题讲解:因果条件题。
passage 6
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will b6 abandoned and allowed to rust. Other authorities,however, think the auto is here to stay. They hold that the car will remain a leading means of urban travel in the foreseeable future.
The motorcar will undoubtedly change significantly over the next 30 years. It should become smaller,safer,and more economical, and should not be powered by the gasoline engine. The car of the future should be far more pollution-free than present types.
Regardless of its power source,the auto in the future will still be the main problem in urban traffic congestion ? One proposed solution to this problem is the automated highway system.
When the auto enters the highway system,a retractable arm will drop from the auto and make contact with a rail,which is similar to those powering subway trains electrically. Once attached to the rail,the car will become electrically powered from the system,and control of the vehicle will pass to a central computer. The computer will then monitor all of the cars movements.
The driver will use a telephone to dial instructions about his destination into the system. The computer will calculate the best route,and reserve space for the car all the way to the correct exit from the highway. The driver will then be free to relax and wait for the buzzer that will warn him of his coming exit, ft is estimated that an automated highway will be able to handle 10,000 vehicles per hour, compared with the X, 500 to 2 ,000 vehicles that can be carried by a present-day highway.
7. In an automated highway system, all the driver needs to do is_?
A. keep in the right lane
B. wait to arrive at his destination
C. keeping constant touch wit^i the computer center
D. inform the system of his destination by phone
讲解答案:
D根据文章最后一段的内容:司机用电话把他的目的地告诉系统,计算机就会计算出最佳的路线,D 项是正确的。
2011年实用口语练习:Arrival 入学报到啦
趣味英语:搭讪十大妙招
2011年实用口语练习:实用英语串烧
英语口语主题:交际英语热门话题47个(3--邀请)
实用口语:Bob Brings Cookies to the market
2岁的萝莉口译员Lucy Wang
口语情景对话:走遍美国精选 二度蜜月ACT 3 - 3
实用口语情景轻松学:我怀疑我是否能及格
英语口语主题:交际英语热门话题47个(14--同事之间)
实用口语:浪漫 Romance
大运会必备接待口语
疯狂口语要素精选 17
疯狂口语要素精选11
英语口语-安慰
英语口语主题:交际英语热门话题47个(6--闲聊)
英语口语主题:交际英语热门话题47个(11--表达歉意)
如何用英语表达“你得减肥了”
那些美剧告诉你的事儿
实用口语情景轻松学:您要的早餐送上来了
2011年实用口语练习:“淘金热”
2011年实用口语练习:学习疑问
口语情景对话:走遍美国精选 偷得浮生半日闲ACT 1 - 2
实用口语情景轻松学:我想买个数码摄像机
实用口语情景轻松学:Take baby steps 慢慢来
口语情景对话:走遍美国精选 感恩节ACT 1 - 1
疯狂口语要素精选 6
英语口语主题:交际英语热门话题47个(2--介绍)
英文如何表达“拍马屁”或“巴结”
口语情景对话:走遍美国精选 当仁不让 ACT 3 - 2
如何用英文表达“你活该”
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |