But in traffic light system there are direct logical connections between the light signals and their meanings.(2)Language is hierarchical that' s to say linguistic system has two levels of structures such that units of the primary level are composed of elements of the secondary level and each ...
The first traffic signals(信号) were used for trains.They were put alongside railway tracks(轨道). A red“stop” light was used to mean “stop” because it couldwarn train drivers a danger from a distance. So they hadenough time to slow down and stop their trains. A greenlight meant “...
D.The meanings of traffic lights. 答案 优质解答 结果四 题目 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 ...
D.The meanings of traffic lights. 答案 优质解答 结果四 题目 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 ...
I . Match the words with their proper meanings.1.trafficA.交换2. organisationB.就业;工作;职业3.unemployedC.迷人的;吸引人的4. occupationD.交通5. professionalE.专业的6.employmentF.死里逃生7.exchangeG.组织8. fascinatingH.买得起;有能力支付9.affordI.职业10. surviveJ.失业的;没有工作的 相关...
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...
connections between the light signals and their meanings (2) Language is hierarchical, that' s to say linguistic system has two levels o structures, such that units of the primary level are composed of elements of the seco owever, the traffic light system has no hierarchical system and the ...
So the signals were swapped. The “go" light was changed to green and the “take care”light was changed to white.During these times, people travelled by train or in carts pulled by horses. Years later, when cars were built, people began to drive them because they could travel much ...
On top of following traffic laws, there are unwritten rules of the road that make driving smoother and more enjoyable for everyone: Be courteous: Use your turn signals to let others know your intentions, and be patient with other drivers. Don't tailgate: Give other vehicles...
Yellow warning signs hadto be placed beside the roads to remind drivers to take care and allow people to cross safey.多年后,汽车出现了。又因实际情况要改善交通灯。Today, towns and cities all over the world have traffic lights. Red and green lights match the signals后来,才发展到现在的交通灯...