If we are driving a car or crossing a street, we will stop when the traffic lights turn red. Why do we use red rather than other colors?
As we know, scattering (散射) happens when light goes through the air. For the same media, if the wavelength (波长) is long, the scattering will be short. If the wavelength is short, then the scattering will be long.
Of all light we can see red has the longest wavelength, so the scattering is the weakest. That means the red light travels far. In fact, it travels farther on rainy days.
Using the red light can help drivers in farther areas see the lights. It helps drivers slow down or stop in time. If drivers don’t see the red light until they are close, they may not be able to stop the car in time. An accident may happen. Red can also excite people. We can act more quickly when we see the color red.
In a word, red light helps drivers stop in time and help prevent accidents.______ has the longest wavelength of all light we can see.
| A．Red | B．Green | C．Yellow | D．Black |
Red light travels farther on ______ days.
| A．windy | B．sunny | C．rainy | D．cloudy |
Red can make people act more quickly because ____________.
| A．red can make people happier | B．the scattering of red is very short |
| C．the scattering of red is very long | D．red can make people more excited |
The underlined word “prevent” means ______ in Chinese.
| A．逃避 | B．防止 | C．处理 | D．检查 |
The passage mainly tells us ____________.
| A．why accidents happen | B．how the red light travels |
| C．why we use red traffic lights | D．how to stop in time at traffic lights |
I was walking around in a store． I saw a cashier （收银员） hand a little boy his money back， saying， "I'm sorry， but you don't have enough money to buy this doll．" I walked towards him and asked him who the doll was for．
"It's the doll that my sister wanted most for Christmas，" he said． I told him that maybe Santa Claus will bring it to her and that he shouldn't worry． He sadly replied， "No， Santa Claus can't bring it to her． I have to give the doll to my mom so that she can give it to my sister when she joins her．"
His eyes were so sad while saying this． "My sister has gone to be with God． Daddy says that Mom is going to see God very soon too， so I thought that she could take the doll with her to give it to my sister．"
My heart nearly stopped．I quickly reached for my wallet and suggested that we count the money again． "Okay，" he said． "I hope that I have enough．" I added some of my money to his without letting him see and we started to count it． There was enough for the doll and even some spare money left． "Thank you， God， for giving me enough money!" the little boy said．
I left the store， feeling as if my life had been changed forever．
（1）Why couldn't the boy buy the doll？
A． Because he didn't know the cashier．
B． Because he didn't have enough money．
C． Because he didn't find the doll．
D． Because the dolls had been sold out．
（2）The boy wanted to buy the doll for ．
A． Santa Claus
B． his sister
C． his mother
D． his father
（3）What does the first sentence in Paragraph 4 mean？
A． The writer's heart stopped working suddenly．
B． The writer had a heart problem．
C． The writer was so touched by the boy．
D． The writer was scared after hearing the story．
（4）According to the passage， which of the following is TRUE？
A． The boy's mom was badly ill．
B． The cashier gave the doll to the boy for free．
C． The boy's mom wanted the doll most．
D． Santa Claus brought the doll to the boy's sister．
（5）What did the writer do to help the boy？
A． He bought the boy a doll．
B． He found a good doctor to save his mother．
C．He told the cashier to sell the doll to the boy．
D． He gave the boy some money to buy the doll．
Inventions make the world better， smarter and a little more fun．
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The folding bike helmet （头盔） People hate to wear a helmet because it's thick and heavy． Morpher is a bike helmet made from plastics． It is just as strong as the traditional ones， but flexible （灵活的） enough to fold almost totally flat． Also it is much easier to carry． |
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Shoes that tie themselves After we see the movie Back to the Future， almost everyone wants a pair of self﹣tying shoes． Now， thanks to Nike， the shoe dream comes true． When you press a button， the shoes can tie themselves． |
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The smart alarm clock﹣Hello Sense An alarm clock， called Hello Sense， can improve your sleep． It can control the temperature， light and even air quality in your bedroom to help you have a perfect sleep environment． And it can record your sleep cycles． |
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Sweet potatoes that could save lives The lack （缺乏） of vitamin A can cause blindness and many other illnesses for illnesses． In sub﹣Saharan Africa， plant experts are helping them grow a kind of new sweet potatoes． These potatoes can help them fight against some illnesses． |
（1）The folding bike helmet is ．
A． thick and heavy
B． made from metal
C． not as strong as a traditional one
D． flexible enough to fold almost flat
（2）Which company makes self﹣tying shoes？
A． Adidas．
B． Kappa．
C． Nike．
D． Li﹣Ning．
（3）The smart alarm clock can NOT ．
A． improve our sleep
B． control our weight
C． record our sleep cycles
D． control the temperature in the bedroom
（4）If a child has a poor eyesight， he may be in the lack of
A． vitamin A
B． vitamin B
C． vitamin C
D． vitamin D
（5）You can find the passage in a ．
A． newspaper
B． story book
C． guide book
D． cookery book
Characters：
"I"﹣Storyteller Bertie﹣storyteller's husband The White Prince﹣a lion
…
We never had children of our own﹣just The White Prince﹣and I can tell you， he was enough of a family for anyone． He walked freely in the park just as we had planned he would， and ran after the deer and the rabbits whenever he felt like it； but be never did learn how to kill for himself． You can't teach old lions new tricks． He lived on deer mostly， and slept on a sofa in our living room﹣I wouldn't have him inside our bedroom， no matter（无论） how often Bertie asked． You know， I have to draw the line somewhere．
Bertie's leg was never cured． When it was bad， he often needed a stick， or me， or the lion to lean on． It pained him a lot， especially on cold and wet days， and he never slept well． On Sundays the three of us would walk around the park together， and Bertie would sit on the top of Wood Hill with his arm around the lion's neck and I would fly kites． You know， I've always loved kites． And the lion liked to break them into pieces．
The lion never showed any interest in running away， and even if he'd wanted to， the park wall was too high for an old lion to jump over． Wherever． Bertie went， he wanted to go too． And if ever Bertie went out in the car， then he'd sit by me in the kitchen， and watch me with those great amber eyes， listening all the while for the sound of Bertie's car coming up the path to the front of the house．
The lion was getting older． And he became weak in his legs and could see very little． He spent his last days sleeping at Bertie's feet． When he died， we buried（埋葬） him at the bottom of the hill． Bertie's wanted it that way so he could always see the place from the kitchen window． I suggested Bertie plant a tree in case（以防） he forgot where the lion was． "I will， but he should get more than a tree．" Bertie said．
Bertie was sad for weeks， months after the lion died． There was nothing I could do to cheer him or even comfort him． He would sit for hours in his room， or go off on long walks by himself． He seemed so shut away inside himself， so distant（遥远的）． Try as I did． I could not reach him．
（Adapted from The Butter fly Lion）
（1）What did Bertie's wife mean by saying "I have to draw the line somewhere"？
A． She would like the lion to sit by her．
B． She didn't expect Bertie to keep the lion．
C． She didn't allow the lion to enter their bedroom．
D． She wanted to stop the lion walking freely in the park．
（2）Which description about the lion is TRUE according to the story？
A． He seldom broke kites into pieces．
B． He could jump over the park wall．
C． He became weak in his legs and eyes．
D． He could kill deer or rabbits for himself．
（3）What can be inferred（推断） from the story？
A． Bertie's leg was badly hurt by the lion．
B． The lion wanted to leave Bertie's family．
C． Bertie's wife would plant a tree for the lion．
D． Bertie loved the lion more than his wife did．
（4）The story is mainly about ．
A． Bertie and his wife﹣the owners of the lion
B． tricks that Bertie and his wife taught the lion
C． the habits that the lion formed in Bertie's family
D． the last days the lion spent with Bertie and his wife
The number of the foreigners who work in China has increased greatly during the past ten years．
A Canadian called Nikk Mitchell and his team are running after their dreams in China． The team is thinking about mixing the Chinese calligraphy（书法） with the virtual reality（虚拟现实，VR） technology． He set up the company FXG in 2017and now has a team of over 30workers． The company lies in Dream Town． Hangzhou entrepreneurial parks（创业园） that offer free work spaces and other services．
Following his dream to discover the world， Mitchell arrived in China in 2006at the age of 18． Six years later． he was amazed by a VR video he saw online， and decided to work in this field． Shortly after， he started studying and found an online community of people who had the same interest．
Mitchell is seeing his VR dream come true because China encourages innovation and entrepreneurship （创新和创业） and the government has also provided great support for high﹣tech development．
For 28﹣year﹣old Russian Artem Zhdanov， China is also his ideal place to fulfill ambition．
After graduating from college， he left his hometown in Siberia and moved to Guangzhou．
In recent years， he has built a Russian﹣language news website about China and set up an online store on Taobao． The news website now has 100，000monthly visits， and the products he sells online， such as T﹣shirts， cups， and chopsticks， have become popular among foreigners living in China．
His childhood dream was to be a diplomat（外交官）． Now it has been realized in some ways． His website and Taobao store are like bridges connecting foreigners with China．
As long as they have ideas and resolve （决心）， they can easily build a business here．
（1）The correct time order of the following events is ．
a．Nikk set up the company FXG．
b． Nikk was amazed by a VR video．
c．Nikk found an online community．
d． Nikk got to China at the age of 18．
A． a﹣b﹣c﹣d
B． d﹣b﹣c﹣a
C． c﹣b﹣d﹣a
D． d﹣b﹣a﹣c
（2）The underlined phrase "fulfill ambition" means " "．
A． visit websites
B． achieve dreams
C． do shopping
D．receive education
（3）Which of the following can be put at the beginning of the last paragraph？
A． Hangzhou has set up entrepreneurial parks to offer service．
B． China is an ideal place for foreigners to travel around．
C． Guangzhou has become a popular place among Chinese．
D． China has offered a good business environment to foreigners．
Would you like to improve yourself？ Would you like to be a better person？ Good news! Here we've got some tips for you．
Tip 1Be Kind
Remember to be kind to yourself． You can do simple things to take care of yourself， like getting enough sleep to make yourself energetic． If you don't do like that， you will not bring anything good to anyone else． When you decide to show more kindness to yourself and to others， life changes quickly in a better way．
Tip 2Be Encouraging
It's amazing what a kind word or touch can do． When I was a kid， I went to a lot of schools． It always made me scared， and I was very nervous and unsure of myself． One time， a teacher touched my head and said， smiling， "Don't worry﹣you'll have a good time with us in this classroom．" I still remember my teacher's words．
All of us may come across some trouble in our life， and a bit of encouragement can be remembered for years．
Tip 3
When my sister and I were kids， my mum didn't have a car and our school was a 30﹣minute walk． Our neighbor offered to drive us to school when she dropped her son off， and that saved my mother a lot of time． Giving help to others can bring you happiness．
When thinking about how to become a better person， remember that small changes are also important． But "be kind to yourself" comes first． As the old saying goes， "You can't pour from an empty cup．" So in order to be a person who can give more love to this world， you have to fall in love with yourself first．
（1）The underlined word "It" in Tip 2refers to （指代） ．
A．going to a lot of schools
B．getting along with classmates
C．talking with the teacher
D．staying in the classroom
（2）What can be the best title for Tip 3？
A．Be Helpful
B．Be Polite
C．Be Outgoing
D．Be Honest
（3）The sentence "You can't pour from an empty cup．" in the last paragraph means " ．"
A．To encourage others， smile to them often
B．To become a better person， start with small changes
C．To give more love to the world， be kind to yourself first
D．To make friends with neighbors， drive their kids to school
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