Traffic lights are red, yellow and green. They are very important signals. Traffic lights are usually placed at busy street corners to help control traffic. Sometimes, they are on streets near schools and shops, too. Most young children are taught what each of the colored lights means, so ...
Traffic lights are red,yellow and green.They are very important signals(信号).Traffic lights are usually placed at busy streetcorners to help control traffic.Sometimes,they are on streets near schools and shops,too.Most young children are taught what each of the colored lights means,so everybody...
changed to white."可知,后来由于事 故的发生,信号灯更换了,白色灯被用来表示“小心” ;根据第四段最后一句“Yellow warning signs had to be placed beside the roads to remind drivers to take care and allow people to cross safely."可知, 黄色的警告标志被放在路边用来提醒司机小心,以 及让行人安全过...
Red and green lights match thesignals used on the railways. Yellow lights are easy to see, so they are used to warn drivers that theyshould slow down and prepare to stop.1. Why was the color red used to mean “stop"?3. In which order did the “take care” lightA. It reminded ...
Traffic lights are red, yellow and green. When the light is red, we must ___. A. stop B. go C. wait D. slow down 相关知识点: 试题来源: 解析 A。交通灯是红黄绿三色。当灯是红色时,我们必须停下。go 是绿灯时,wait 通常黄灯时准备停下,slow down 是减速,不符合红灯情况。反馈...
Traffic lights are red,yellow and green.They are very important signals (信号).Traffic lights are usually placed at busy street corners to help control traffic.Sometimes,they are on streets near schools and shops,too.Most young children are taught what each of the colored lights means,so every...
Traffic lights are red, yellow and green. They are very important signals(信号). Traffic lights are usually placed at busy street corners to help control traffic. Sometimes, they are on streets near schools and shops too. Most young children are taught what each of the colours lights means,...
阅读理解Traffic lights are red, yellow and green. They areusually placed at busy street corners to help control traf-fic. Sometimes, they are on streets near schools andshops,too.The first traffic signals(信号) were used for trains.The signals were put alongside railway tracks(轨道).The color...
Traffic lights are red, yellow and green. They are veryimportant signals(信号). Traffic lights are usually placed atbusy street corners to help control traffic. Sometimes, theyare on streets near schools and shops, too. Most youngchildren are taught what each of the colored lights means, soeve...
【题目】Traffic lights are red,yellow and green. They are very important signals(信号). Traffie lights are usually placed at busystreet corners to help contro taffic, Sometimes,they ae on street near schools and shops,too. Mos young children are taughtwhat each of the colored light means,so...