What is color? Why do some of the things around us look red, some green, others blue?Colors are really made by deflected light. We see color because most of the things reflect light. In the same way, 题目和参考答案——青夏教育精英家教网—

We talk every day. When we have good news, we like to share it with our good friends and when something terrible happens, we tell it to others soon. But can you imagine that a tree can talk and share news too ? Of course, no tree moves lips and says words just as people do. Strange as it may sound, though, some trees do manage to communicate with each other.
Willow (柳树) trees are the best-known of these trees. When insects begin nibbling (叮咬) a willow tree, the tree sends out a special smell at once. This smell tells the other willows that harmful insects are coming near. All of them quickly make a chemical (化学物质) in their leaves. This chemical is bad to the insects. The insects do not like it and they fly away soon. In this way, the willow trees protect themselves from the insects.
The next time when you take a walk in the woods, maybe the trees are “talking” to each other quietly. And when someone says that trees cannot “talk”, please tell them that even trees give messages to each other, too.
小题1:Willow trees send messages with_____________.

A．speak just as people do	B．tell stories to others
C．communicate with each other	D．kill insects in the woods

小题4:According to the passage, the right order of the following is _____________.
a. The willow tree gives out a smell.
b. The willow trees make a chemical in their leaves.
c. Insects fly away because of the chemical.
d. Insects begin nibbling a willow tree.

A． d---a---b---c	B． d---b---a---c
C． a---b---c---d	D． d---c---b---a

Do you know how to write an English letter and envelope?
When we write a letter in Chinese, we always put the date at the end of the letter. But it is different in English. We have to put it on the top of the right corner. And above the date, we also write the number of our house and the names of our street, city and country. To begin the letter, we always use the word like "Dear sir",　 "Dear Mr./Miss./Ms.…". To end the letter, we usually use words like "Yours”, “Yours ever" or "Truly yours".
Now read the following envelope, please.
小题1:"We have to put it on the top of the right corner." The word "it" here means_____.
A. the date　　　　　　B. the letter　　　　 C. the passage
小题2:To what country will the letter be sent?
A. P.R. China　　　　　B. China　　　　　 C. The United States
小题3:Who writes this letter?
A. Miss Susan Brown　　B. Zhang Hua　　　C. You
小题4:From the passage, we know when we write an English letter, we should
put down our address _____.
A. at the end of the letter on the right
B. at the end of the letter on the left
C. at the top of the letter on the left
小题5:How do you begin your letter if you write to John Smith?
A. John Smith　　　 B. Mr. John　　　C. Dear Mr. Smith

Happiness is for everyone. You don’t need to care about those people who have beautiful houses with large gardens and swimming pools or those who have nice cars and a lot of money and so on. Why? Because those who have big houses may often feel lonely and those who have cars may want to walk on the country roads at their free time.
In fact, happiness is always around you if you put your heart into it. When you are in trouble at school, your friends will help you; when you study hard at your lessons, your parents are always taking good care of your life and your health; when you get success, your friends will say congratulations to you; when you do something wrong, people around you will help you to correct it. And when you do something good to others, you will feel happy, too. All these are your happiness. If you notice a bit of them, you can see that happiness is always around you.
Happiness is not the same as money. It is a feeling of your heart. When you are poor, you can also say you are very happy, because you have something else that can’t be bought with money. When you meet with difficulties, you can say loudly you are very happy, because you have more chances to challenge(向…挑战)yourself. So you can not always say you are poor and you have bad luck. As the saying goes, life is like a revolving(旋转)door. When it closes, it also opens. If you take every chance you get, you can be a happy and lucky person.
小题1:Those who have big houses may often feel .

小题2:When you fall down in a PE class, both your teacher and your classmates will .

A．laugh at you	B．play jokes on you
C．quarrel with you	D．help you up

小题3:What will your friends say to you when you make great progress?

A．Oh, so do I	B．Congratulations
C．Good luck	D．It’s just so-so

小题4: Which idea is NOT right according to the passage?

A．People who have cars would never like to walk in the open air

B．You can get help from others when you make mistakes

C．You can still be a happy person even if you have little money

D．Happiness is always around you though difficulties come towards you

小题5: Which of the following is this passage about?

Three kids have been learning chemistry for only a few months. But they have already begun to challenge (挑战) a world famous scientist!
Li Weichi, Huang Runling, and Xiao Yan are from Zhongshan Huaqiao Middle School in Guangdong. They have just found a red cabbage that could be a new kind of acid-base indicator (酸碱指示剂). They want it to take the place of litmus (石蕊) paper.
"We’ve learnt to think of and ask questions about life by ourselves," said Li, "We work well with each other."
British scientist Robert Boyle discovered the use of litmus paper over 300 years ago. Now it is used widely in experiments all over the world.
But when the kids did some experiments in class last winter, they saw that the litmus paper didn’t turn very blue with base matter. It’s hard to get a clear result.
Will there be a better indicator than litmus paper? The three kids decided to try and find out!
How? They went to collect over 40 plants in parks, gardens and markets. Then they ground (研磨) leaves, flowers and stems (茎) to get the pigments (色素) from them.
The kids mixed pigments with acid and base. They spent months watching carefully to see which paper showed the best colour change. They decided it was the litmus paper!
"It’s our first scientific journey, Huang said, "But it makes me want to try harder."
小题1: Whom did the three kids want to challenge?

A．Their chemistry teacher.	B．Their headmaster.
C．Robert Boyle	D．Thomas Edison

小题2: From the text, a red cabbage is a kind of ____.

小题3:What is widely used as the acid-base indicator now?

A．red cabbage	B．litmus paper
C．any plant	D．any flower

小题4:The story mainly tells us ____.

A．how to make litmus paper	B．about the three kids’ spirit
C．scientists were wrong	D．the kids are heroes

Umbrellas are common in our daily life. On rainy days, many people hold them to prevent the 36 . But it’s not easy to hold an umbrella if there is heavy rain and 37 wind. And it’s harder to make a phone call or ride a bike 38 an umbrella in the hand. An American named Alan Kaufman and his company spend 6 years inventing a hand-free umbrella. 39 , they made it.
They called it Nubrella. Just touch a button（按钮），and the Nubrella will open 40 With the help of its “shoulder support（支持）”,the umbrella can rest on the user’s shoulders. So the user needn’t hold the umbrella any more. He can walk with hands 41 even in the strong wind.
The hand-free umbrella is $ 59.94 each. People all around the world like it very much. Because of this smart 42 ,they can use their phones to talk and send short messages in the rain now. 43 in the rain under a Nubrella is really cool, isn’t it?

Food is very important．Everyone needs to eat well if he wants to have a strong body．Our minds also need a kind of food．This kind of food is knowledge（知识）．
When we are very young，we start getting knowledge．Kids like watching and listening．Color pictures especially interest them．When kids are older，they enjoy reading．When something interests them，they love to ask questions．
Our minds，like our bodies，always need the best food．Studying on our own brings the most knowledge．
If someone is always telling us answers，we never learn well．When we study correctly（正确地）and get knowledge on our own，we learn more and understand better．
小题1:Everyone needs to eat well because it can help people _____________.

A．to be healthy	B．to study well
C．to enjoy learning	D．to have a happy life

小题2:Our bodies need _____________.

小题3:We start getting knowledge _________.

A．when we are old	B．when we are very young
C．when we are pupils	D．when we are parents

小题4:How do kids get knowledge?

A．They watch.	B．They eat．
C．They listen to the teacher．	D．They just learn by themselves.

Do you want to be the most popular person in the class? You don’t need to change your character; you just need to improve your personality. In fact, the most popular people are trusted(信任) and loved because they stay normal but still have something that makes them different from the rest of us. Here are some pieces of advice about becoming the most popular person in the class.
If you want others to like and respect you, you have to start by liking and accepting yourself. Do not change yourself in order to please others.
Be helpful to everyone and do it happily. Being nice to people is almost like helping them, because by being nice you make others happy.
Be active and have a positive view towards life. Develop confidence in yourself.
Stay clean and wear fresh clothes. Do not try to follow fashion to please others.
Respect cannot be bought with big words and power. You have to get it by being honest. It also helps your personal growth. You must be a person that can be trusted to get respect.
小题1: What can we know from the first paragraph?

A．We should change our character.

B．We should improve our personality to be trusted and loved.

C．We shouldn’t change our character and improve our personality.

D．We shouldn’t improve our personality.

小题2:The underlined sentence shows that .

A．we should be always polite

B．we can help others only by being happy

C．you should be polite when you help others

D．you should always be nice to others

小题3:The writer thinks a person who is liked by the whole class must be           .
①confident   ②positive   ③good-looking
④helpful   ⑤fashionable

小题4:What’s the best title for the article?

A．How to Develop Power.	B．How to Be the Favorite.
C．How to Improve Yourself.	D．How to Please Others.

Smoking in indoor public places including public working places, public transport vehicles and some other special outdoor working places has been banned(禁止)in China since January 2011.Let’s look at the following advantages of banning smoking.
First, banning smoking will not only help in saving smokers from health problems and diseases, but will also be good for passive(被动)smokers. When the smoker is smoking in a restaurant, the people around him are sure to breathe in the smoke and suffer from the diseases an active smoker gets. If smoking is banned, spread of these diseases can be controlled.
Next, banning smoking will put stress on smokers to give up. Since a smoker is prevented from smoking, he will learn how to live without smoking for long hours. When a smoker doesn’t smell or see anybody around him smoking, it might reduce his wish to smoke too. As a result, people have to give up smoking.
Smoking in public places influences non-smokers to start smoking, especially adolescents. When teens see people around them smoking, they will follow them easily. Thus the number of teen smokers will increase. Also asthma(哮喘)and other problems are often seen in children living around smokers. So if it is banned, these places will become safe for children and teenagers.
Looking from the economic point of view, smoking should be banned to increase work productivity(生产率).Employees(雇员)who smoke usually take breaks to smoke while working. So the number of hours they put in their work is smaller.
If you see from the environment point of view, smoking should be banned. Smoking causes air pollution. If it is banned, it will help keep the environment from getting worse.
小题1:________doesn’t belong to a non-smoking place.

小题2:The second paragraph mainly wants to tell us ______.

A．banning smoking is good for restaurants

B．banning smoking is good for non-smokers

C．banning smoking is good for spread of diseases

D．banning smoking is good for active smokers and passive smokers

小题3:How many advantages of banning smoking are mentioned in this passage?

小题4:According to the text, the underlined word “adolescents” means ______.

小题5:Which of the following statements in NOT true?

A．If smoking is banned, work productivity will increase.

B．If smoking is banned, the number of teen smokers will be larger.

C．If smoking is banned, it will make the environment become better.

D．If smoking is banned, smokers will learn how to live without smoking.

A．dark-colored clothes	B．red-colored clothes
C．green-colored clothes	D．light-colored clothes

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