When the traffic lights turn red, we will stop driving a car or crossing a street. Why is red used for traffic lights instead of other colors?
As we know, scattering(散射)happens when light goes through the air. For the same media(媒介), if the wavelength is long, the scattering will be short. If the wavelength is short, the scattering will be long.
Of all lights we can see red has the longest wavelength, so the scattering is the weakest. That means the red travels far. In fact, it travels faster 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 lights help drivers stop in time and help prevent accidents.

（1）When the traffic lights turn _______, we will stop driving a car.
A.red
B.green
C.yellow
D.dark
（2）According to the passage, the scattering of the red light is the _______.
A.longest
B.weakest
C.farthest
D.strongest
（3）The underlined word “wavelength” in Paragraph 2 means _______ in Chinese.
A.波浪
B.光波
C.波长
D.波幅
（4）What can the red light help drivers do?
A.It can help drivers in farther areas see the lights.
B.It helps drivers slow down or stop in time.
C.It can make the drivers act more quickly.
D.All the above.
（5）Which of the following is the best title?
A.Why do accidents happen?
B.How does the red light travel?
C.Why do we use red traffic lights?
D.What is scattering?

【题目】阅读理解
Happy Family Salad

Ingredients :
Two adults ( married, responsible and loving parents)
One child (or more)
Two large bowls of tolerance (宽容)
A cup of understanding
Four leaves of fun and games
Two tablespoons of salad cream of kindness
A whole heap of sharing and caring
A bag of happy thoughts
A bag of smiles
Method :
1). Put all the ingredients except the leaves of fun and games, cream of kindness, happy,thoughts and smiles, in a mixing bowl.
2). Pour in the cream of kindness and mix well.
3). Arrange the leaves of fun and games in a salad bowl.
4). Sprinkle (撒) the happy thoughts and smiles on top and serve.
Serving suggestion :
Do not refrigerate. Always serve salad fresh and eat immediately, and together as a family.
Stale salad should be discarded before it breeds unhappiness.The Happy Family Salad can be
eaten at a as art of breakfast, lunch or dinner.
根据材料内容选择最佳答案，并将其标号填涂在答题卡相应位置。
（1）How many family members are needed to make the Happy Family Salad?
A.A parent and a child.
B.A parent and two children.
C.Two parents and at least a child.
D.Two parents and no children.
（2）When should we pour the cream of kindness into the salad?
A.After sprinkling the happy thoughts and smiles on top of the ingredients.
B.After arranging the leaves of fun and games in a salad bowl.
C.After placing the mixed ingredients in a mixing bowl.
D.After putting the ingredients on the leaves.
（3）How should we prepare the adults to make Happy Family Salad?
A.They should be married, responsible and loving parents.
B.They should be healthy and loving parents.
C.They should be parents to many children.
D.They should be old and loving parents.
（4）What does the underlined sentence mean in the last paragraph?
A.A happy family can be enjoyed at all times.
B.A happy family should eat every meal together.
C.A salad can be eaten at every meal.
D.Responsible parents are important at all times.
（5）Why does the writer write the passage?
A.To teach parents how to be happy.
B.To tell families how to make a salad.
C.To show parents how to play with their children.
D.To advise family members on how to have a happy family life.

【题目】请用适当的词完成下面的短文,并把所缺单词填写在指定的位置上。每个空只能填写一个形式正确、意义相符的单词。

A big company wanted to find someone to work for them. Lots of young college students came to for the job, but only a small part of them were left. And this time, the company didn't plan to choose the right persons usual.
Here came the day when they took the final interview. A big box full of papers was placed on the to the interview room, and a few papers were lying around the box.
The first student came. He hurried along the way to take the interview. “Who put this box in the middle of the road?” the student said to himself, he did not try to move the box away. Instead, he passed around the box and continued his way.
The second student came along and did the thing. Then another came, and another. All of them complained (抱怨) about the box but of them tried to move it. What's worse, someone even stepped on the papers and left without having a look at the things on the ground.
Half an hour , a thin young man with glasses came. He was also among those who were left to take the interview. He saw the box and the papers around it. Without thinking twice, he stopped and began to up the papers and put them into the box. Then he managed to move the box to the side. To his great , he found an invitation under the box. On it were the following words, “Congratulations, young man! You are the person we are looking for! Would you like to join us?”
Sometimes, you see, helping others is helping yourself.

A. at， withB. for， inC. at， inD. for， with

A. eat ； however

B. to eat ； like

C. eating ； such as

D. eating ； for example

A. cold and cold

B. colder and colder

C. the colder and the colder

D.the coldest and the coldest

A. a little B. a fewC . little D. few

A. is B. are C. was D. were

（1）If you are nine years old and you like singing, you can watch________ to know more about singing.
A.Running Man
B.Master Class
C.Raid the Cage
D.Dad Came Back Season II
（2）Who will appear in Dad Came Back Season II ?
A.Tian Zhen
B.Han Lei
C.Gu Juji
D.Tianxin
（3）Which of the following is true according to the chart?
A.Li Xiaopeng was a sports player.
B.People can watch Raid the Cage on weekends.
C.The Children in Master Class are at the age of 5-10.
D.Only famous actors can be the members of Running Man

【题目】完形填空

One day，a teacher entered the classroom and told the students about a test. After hearing，all students were seated and waited for the test to1. Now, the teacher gave the test papers to all students and put the text face down at the desk. When he finished handing out the test to all students, he asked2 to turn the test pages and begin.
Students were surprised to see that there was not a 3 but just a black dot in the center of the page. The teacher noticed the students' face expression and told them, “I want you to write about 4you see there.”
The students were still5but got started with the test. At the end of the class, the teacher took all answer sheets and started reading each answer from each sheet in front of all students. All of them described about the black dot and tried to explain its position etc. After the teacher finished reading, the whole class was6.
Then professor began to explain, “Don't worry, I am not going to give you 7 for this but I just want you to think about something. Here everyone focused on the black dot and wrote about it,8no one wrote about the white paper, the 9 is with our lives. The white paper stands for our whole life and the black spot stands for10in our life.
Our life is a gift given to us by God,11love and care, and we always have reasons to celebrate –our friends around us, the job that can 12us our living, the miracles we see every day.
Still we just13 day to day problems like health problems, lack of money, problems in relationships etc. but we never see that these problems are very small compared to14 we have in our lives.”
So we should try to take eyes off our problems and15each moment that life gives us. Be happy and live life positively.
（1）A.start B.finish C.end D.stop
（2）A.him B.her C.them D.us
（3）A.answer B.question C.plan D.picture
（4）A.where B.what C.when D.which
（5）A.surprised B.relaxed C.excited D.interested
（6）A.noisy B.warm C.proud D.silent
（7）A.examples B.grades C.books D.presents
（8）A.but B.and C.so D.or
（9）A.different B.same C.polite D.difficult
（10）A.work B.money C.problems D.jobs
（11）A.with B.without C.for D.of
（12）A.choose B.provide C.share D.thank
（13）A.try on B.get on C.focus on D.turn on
（14）A.everything B.something C.nothing D.anything
（15）A.believe B.fear C.pass D.enjoy