B. The history of traffic lights. C. The importance of traffic lights. D.The meanings of traffic lights. 答案 4-7 CBDB优质解答 结果二 题目 E(2020 杭州) Traffic lights are red,yellow and green.They are very important signals (信号).Traffic lights are usually placed at busy street ...
C. The importance of traffic lights. D. The meanings of traffic lights. 相关知识点: 试题来源: 解析 19.C 【解析】细节理解题。 根据第二段第三句The color red was used to mean "stop" because it warned people of danger 可知,红色被用作表示“停止”是因为它警告人们危险的存 在。 故选C...
Yellow lights are easy to see, so they are used to wam divers that they should slowdown and preparet top.Whatisthe passage mainly about?A. The advantagesfrfc ights.B. The history of trafic lights.C. The importance of traffc light.D. The meanings oftraffic lights. ...
B. The history of traffic lights. C. The importance of traffic lights. D.The meanings of traffic lights. 答案 4-7 CBDB优质解答 结果二 题目 E(2020 杭州) Traffic lights are red,yellow and green.They are very important signals (信号).Traffic lights are usually placed at busy street ...
The importance of traffic lights.D. The meanings of traffic lights. 相关知识点: 试题来源: 解析 52.C[细节理解题。根据第二段第三句“The color red was usedto mean ‘stop’ because it warned people of danger. "可知,使用红色是想警告人们危险。故选C。]53.B [词义猜测题。根据第二段最后...
The importance of traffic lights.D. The meanings of traffic lights. 相关知识点: 试题来源: 解析 主旨大意本文主要讲述了红绿灯的发展。O1C 分析细节理解题。根据第二段第三句“The color red wasused to mean 'stop’ because it warned people of danger. "可知红色代表危险警告。02B分析词义猜测题...
The meanings of traffic lights. 相关知识点: 试题来源: 解析 【文章大意】本文主要介绍了红绿灯的发展历史。第一批交通信号被用于坐火车,红色被用来表示“停止”的意思,绿灯被用来表示“小心”,白灯被表示“行”;后来做了交换,绿灯被用来表示“小心”,白灯被表示“行”;现在,红灯和绿灯与铁路上使用的信号相...
Yellow warning signs had to be placed beside the roads to remind drivers to take care and allow people to cross safely. Today, towns and cities all over the world have traffic lights. Red and green lights match the signals used on the railways. Yellow lights are easy to see, so they ...
The advantages of traffic lights.B. The history of traffic lights.C. The importance of traffic lights.D. The meanings of traffic lights. 相关知识点: 试题来源: 解析 BTraffic lights are red, yellow and green. They are very important signals(信号). Traffic lights areusually placed at ...
Yellow warning signs hadto be placed beside the roads to remind drivers to takecare and allow people to cross safely.Today, towns and cities all over the world havetraffic lights. Red and green lights match the signalsused on the railways. Yellow lights are easy to see, sothey are used ...