In the traffic lights,red means "stop",green means "go",and yellow means "hurry": Why those colors, though? Why not blue,purple,and brown?The following are transponded from others WeChat.
●Red is an inherited symbol from railroads
Red symbolizes danger in many cultures,which makes sense,considering it has the longest wavelength of any color,meaning you can see it from a greater distance than other colors.Red has meant "stop" since long before cars existed,with railway signals use of red dating bake to the days when mechanical arms lifted and lowered to indicate whether the rail ahead was clear.So that one's simple.
●Green meant "caution" at first
Green's role in lights has actually changed dramatically over time.Its wavelength is next to (and shorter than) yellow's,meaning it's still easier to see than any color other than red and yellow.Back in the early days of railway lights,green originally meant "caution",while the "all-clear" light was,well,clear or white.Trains,of,course,take an unlimitedly long time to stop,and legend has it that several disastrous collisions happened after an engineer mistook stars in the night horizon for an all-clear.Thus,green became "go",and for a long time,railways used only green and red to signal trains.
●Yellow means "caution" because it's almost as easy to see as red
From the earliest days of motoring up until the mid-1900s,not all stop signs were red-many were yellow, because at night it was all but impossible to see a red stop sign in a poorly lit area.The yellow stop-sign craze began in Detroit in 1915,a city that five years later installed its first electric traffic signal,which happened to include the very first amber traffic light,at the corner of Michigan and Woodward Aves.
1.What are the earliest traffic signals designed for from the passage?
A. Cars. B. Trains.
C. Motorcars. D. Not mentioned.
2.Which statement is true according to the passage?
A. Green means "go" all the time.
B. Red is the easiest color to be noticed.
C. All yellow things need dealing with carefully.
D. All the three colors were once used as "caution".
3.What's the main idea of the passage?
A. What is your favorite color?
B. Why are "Red,Yellow,Green" used as traffic signals?
C. How can we figure out the wavelength of colors?
D. What color can green,yellow and red make?
4.Where is the passage from?
A. A diary. B. A scientific magazine.
C. A newspaper. D. The Internet.
高三英语阅读理解困难题
In the traffic lights,red means "stop",green means "go",and yellow means "hurry": Why those colors, though? Why not blue,purple,and brown?The following are transponded from others WeChat.
●Red is an inherited symbol from railroads
Red symbolizes danger in many cultures,which makes sense,considering it has the longest wavelength of any color,meaning you can see it from a greater distance than other colors.Red has meant "stop" since long before cars existed,with railway signals use of red dating bake to the days when mechanical arms lifted and lowered to indicate whether the rail ahead was clear.So that one's simple.
●Green meant "caution" at first
Green's role in lights has actually changed dramatically over time.Its wavelength is next to (and shorter than) yellow's,meaning it's still easier to see than any color other than red and yellow.Back in the early days of railway lights,green originally meant "caution",while the "all-clear" light was,well,clear or white.Trains,of,course,take an unlimitedly long time to stop,and legend has it that several disastrous collisions happened after an engineer mistook stars in the night horizon for an all-clear.Thus,green became "go",and for a long time,railways used only green and red to signal trains.
●Yellow means "caution" because it's almost as easy to see as red
From the earliest days of motoring up until the mid-1900s,not all stop signs were red-many were yellow, because at night it was all but impossible to see a red stop sign in a poorly lit area.The yellow stop-sign craze began in Detroit in 1915,a city that five years later installed its first electric traffic signal,which happened to include the very first amber traffic light,at the corner of Michigan and Woodward Aves.
1.What are the earliest traffic signals designed for from the passage?
A. Cars. B. Trains.
C. Motorcars. D. Not mentioned.
2.Which statement is true according to the passage?
A. Green means "go" all the time.
B. Red is the easiest color to be noticed.
C. All yellow things need dealing with carefully.
D. All the three colors were once used as "caution".
3.What's the main idea of the passage?
A. What is your favorite color?
B. Why are "Red,Yellow,Green" used as traffic signals?
C. How can we figure out the wavelength of colors?
D. What color can green,yellow and red make?
4.Where is the passage from?
A. A diary. B. A scientific magazine.
C. A newspaper. D. The Internet.
高三英语阅读理解困难题查看答案及解析
This Is Why Traffic Lights Are Red, Yellow, and Green
Ever wondered why blue doesn’t mean go and brown mean stop?1..
The idea that red means stop and green means go has impacted our lives in more ways than just traffic signals. We have been taught from a young age that the color red means danger.2.. But why were those particular colors chosen for traffic lights in the first place? For something we have to look at every day, why couldn’t they have been prettier colors like magenta(紫红) and turquoise (天蓝色)?
It’s important to know that before there were traffic lights for cars, there were traffic signals for trains. At first, railroad companies used red to mean stop, white to mean go, and green to mean caution. As you could imagine, train conductors ran into a few problems with the color white meaning go— 3., with train conductors thinking they were all clear when they really weren’t. Railway companies eventually moved to the color green meaning go, and it’s been that way ever since.
As far as red goes, that’s always been a color that indicated danger, long before cars were even around. Red is the color with the longest wavelength. 4.. The color yellow was used to caution drivers because it has a slightly shorter wavelength than red, but not as short as green.
5.. Employ these driving rules first and know that traffic lights have certainly come a long way.
A. And the color green means it’s OK to move forward
B. Turns out, there’s a perfectly good explanation for it
C. It can be seen from a greater distance than other colors
D. bright white could easily be seen from a distance by us
E. bright white could easily be mistaken for stars at night
F. Why don’t we use blue to mean go and brown mean stop
G. So don’t get mad next time you’re impatiently waiting at a traffic light
高三英语七选五简单题查看答案及解析
The car ____and stopped at the red traffic light.
| A．got on | B．got off | C．slowed down | D．picked up |
高三英语单项填空简单题查看答案及解析
Drivers must stop when the traffic lights _____ red．
A．turn B．will turn
C．turned D．were turning
高三英语单项填空中等难度题查看答案及解析
The town I live in is about to put cameras at all traffic lights to catch people who run red lights．It 36 me of how many people I’ve seen who take the yellow light as a 37 to go faster．I also can’t understand why people don’t move when the traffic light has turned green．Above all, there are those 38 situations in which someone doesn’t even 39 that the light turns red, and just keeps going．That is why so many 40 happen! All these situations make me 41__ the purpose of traffic lights．
42 , it’s even more frightening to imagine letting people make their own decisions at __43 crossroads．Do the biggest cars get to go first? Who decides who goes next? So I guess I do like the idea of a system to 44 traffic．And I’ll do my best to 45 the traffic rules: to go, to be cautious, and to stop when I’m 46 to．
It occurs to me that my 47 have done much the same for me 48 teaching me how to live．They have given me many 49 lights: to get along well with others, to listen and talk to them, to help others, and to 50 with joy and purpose．They have also given me some red lights 51 my life goes astray（误入歧途）: not to be greedy, to keep my temper, and to control my desires．And there 52 have been some yellow caution lights: to watch how much I drink, to keep control of my behavior, and to 53 school regularly and work hard．
If I obey these rules, my life will be as 54 as it can be．Just as I’m wise to pay attention to the traffic lights when I’m walking across the street, I’m wise to pay attention to the“ 55__ signals” given to me by my parents．
1.A．suggests B．informs C．reminds D．warns
2.A．sight B．signal C．message D．switch
3.A．instant B．exciting C．dangerous D．cautious
4.A．notice B．sense C．remember D．feel
5.A．events B．problems C．situations D．accidents
6.A．think of B．wonder about C．care for D．worry about
7.A．Besides B．Anyway C．Instead D．However
8.A．noisy B．narrow C．crowded D．key
9.A．control B．direct C．improve D．serve
10.A．learn B．obey C．protect D．carry
11.A．supposed B．used C．devoted D．delighted
12.A．teachers B．friends C．leaders D．parents
13.A．in charge of B．in face of C．in terms of D．indanger of
14.A．safe B．green C．beneficial D．helpful
15.A．live B．share C．work D．communicate
16.A．unless B．when C．before D．till
17.A．still B．even C．only D．also
18.A．start B．attend C．leave D．miss
19.A．good B．colorful C．meaningful D．healthy
20.A．traffic B．light C．life D．confidence
高三英语完型填空中等难度题查看答案及解析
The traffic lights ________ green and I pulled away.
A. came B. grew C. got D. went
高三英语单项填空简单题查看答案及解析
As the light turned green, I stood for a moment, not________, and asked myself what I was going to do.
A．moved B．moving C．to move D．being moved
高三英语单项填空中等难度题查看答案及解析
As the light turned green,I stood for a moment,not_______,and asked myself what I was going to do.
A.moved B.moving
C.to move D.being moved
高三英语单项填空中等难度题查看答案及解析
It was early in the morning and the traffic was _________.
A. fluent B. free C. light D. little
高三英语单项填空中等难度题查看答案及解析
—Things aren’t going too well financially, sir.
—You mean we’re _____ soon?
A. in the green B. in the blue
C. in the red D. in the yellow
高三英语单项填空中等难度题查看答案及解析