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The yellow coat ______ be Linda's because nobody likes yellow except her.
A.can't B.mustn't C.can D.must
九年级英语单选题中等难度题查看答案及解析
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The yellow coat ________belong to Linda because nobody likes yellow except her.
A. can’t B. may C. must D. needn’t
九年级英语单项填空中等难度题查看答案及解析
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The red coat_____ be Linda’s. She doesn’t like red at all.
A. must B. can’t C. can D. could
九年级英语单项填空中等难度题查看答案及解析
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—Of all your coats, why do you like this one best?
—Because it’s _________ than the others.
A. much beautiful. B. more expensive.
C. much cheap. D. much more beautiful.
九年级英语单项填空中等难度题查看答案及解析
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—Which coat do you prefer, the yellow one or the blue one?
— . I’d like the red one.
A．Either, try on B．Neither, try on
C．Both, to try on D．Neither, to try on
九年级英语单项填空中等难度题查看答案及解析
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When we were little kids, we knew about traffic lights. The color red means stop, the color green means go and the color yellow means slow down or show some caution (小心). But why are these colors used for traffic lights? Why couldn't they be colors like blue, brown or orange? Here is the history of the colors for traffic lights.
Well, it's important to know that before there were traffic lights for cars, there were traffic signals (信号) for trains. At first, railway companies used red to mean stop, white to mean go and green to mean caution. But train drivers had a few problems with the color white meaning go. They could easily mistake stars at night for the signal to go. So railway companies moved to the color green to mean go, and the color yellow to mean caution.
The color red has a lot to do with danger. Red is the color with the longest wavelength (波长), so it can be seen from a greater distance than other colors. The color yellow is used to mean caution because it has a little shorter wavelength than red, but not as short as green.
Believe it or not, yellow was once used to mean stop. Back in the 1900s, some stop signs were yellow because they were easier to see in poorly-lit areas. But people once again used red to mean stop after more highly reflective (反光) materials were developed. Since yellow can be seen well at all times of the day, school zones and school buses continue to be painted yellow.
Traffic lights really came a long way.
From: https: //www.rd.com
1.The earliest traffic signals were for trains.
2.The color blue was once in early traffic signals.
3.The color green can be seen from a greater distance than other colors.
4.Back in the 1900s, yellow was used to mean stop.
5.School buses are painted yellow because this color can be seen at all times of the day.
九年级英语阅读判断中等难度题查看答案及解析
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The notebook _______________ be Linda's because it has her name on it.
A.must B.may C.can D.might
九年级英语单选题困难题查看答案及解析
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---Which of the two coats will you take?
---I’ll take________ of them，because I don’t like the colours.
A. either B. neither C. all D. both
九年级英语单项填空中等难度题查看答案及解析
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One of my favourite things to do is hiking in mountains. Because nobody likes the idea of getting lost, I always prepare before every trip. But what’s the best navigation tool, a Global Positioning System (GPS) or a good old map and compass? Five of my friends and I hiked through the mountains on a trail I marked. One team of three carried a GPS, and the other team used a map and compass.
It took the GPS team 3 hours and 11 minutes to get through the whole hike, however, it took the map and compass team only 2 hours and 49 minutes. The biggest problem the GPS team met was that they lost the satellite signal (卫星信号) in some places. With no map or compass, they had to walk around until they were in a place where the signal was good. The map and compass team was able to spot (认出) different landmarks, compare them to their maps and then use the compass to point them in the right direction.
When I head out on my future hikes, I’m bringing a map, a compass and a GPS to show me the way.
1.The writer prepares before every trip because he doesn’t _________.
A．like the old map or compass
B．know how to use the GPS
C．want to get lost in mountains
D．want to get into the mountains alone
2.The two teams _________.
A．had the same navigation tool
B．went along the same trail
C．had the same problem
D．finished the whole hike at the same time
3.In the end, the writer found out _________.
A．the map and the compass were too old navigation tools to use any more
B．it wasn’t necessary to bring a map and a compass together with a GPS
C．the GPS had some bad points in hiking in mountains
D．he wouldn’t use a GPS any more
九年级英语阅读理解中等难度题查看答案及解析
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The idea that red means stop and green means go has influenced our lives in more ways than just traffic signals(信号). We have been taught from a young age that the color red means danger and green means it's okay to move forward. But why were those 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?
Well, it's important to know that before traffic lights for cars, there were traffic signals for trains. At first, railway companies used red to mean stop, white to mean go, and green to mean warn. As you could imagine, trains ran into a few problems with white meaning go. For example, one train mistook a bright star for a white light and something unexpected happened. Because of that, railway companies finally moved green meaning go and used yellow to mean warn. And it's been that way ever since.
Red has always been a color that meant danger, long before cars were even around. This most likely started because it's the color with the longest wavelength(波长) so it can be seen somewhere farther than other colors.
But, believe it or not, yellow was once used to mean stop. Back in the 1900s, some stop signs were yellow because it was too hard to see a red sign in a poorly lit area. Finally, highly reflective materials(高反射材料) were developed and red stop signs were born. Since yellow can be seen well at all times of the day, school zones, some traffic signs, and school buses continue to be painted yellow.
So next time you're impatiently waiting at a traffic light, don't get so mad at them, they've certainly come a long way.
What does the text mainly tell us?
A.How important traffic lights are.
B.Which color has the longest wavelength.
C.What red, yellow and green can be used for.
D.Why traffic lights are red, yellow and green.
九年级英语阅读单选中等难度题查看答案及解析