閱讀理解。
     Have you ever rubbed your hands together when they get cold? Why do we do that? We do that for
friction. Friction happens when two things that aren't very smooth rub together to make heat energy. The
faster you rub two things together, the more friction (and heat) you can make. Let's discover friction!
WHAT YOU'LL NEED:
      ● Soap     ● Water    ● Your hands!
WHAT TO DO:
     1. Make sure your hands are dry.
     2. Rub your hands together until you feel the heat of your hands.
     3. Now, use soap and water to get your hands very slippery (滑的).
     4. Try to make friction happen while your hands are slippery.
     5. Please write down what has happened.
LET'S TALK!
     Friction is an energy that happens when two things rub together. When friction happens,
it makes heat! When your hands are slippery, they won't make very much friction and your
hands won't get so hot.
DID YOU KNOW? 
     1. Friction happens when you stop your fast running bike.
     2. Ancient people made fires by rubbing two pieces of wood together. Friction happened
though they didn't know it. 
_________    
     Friction is everywhere. Have you ever noticed situations where friction is happening?
If not, ask your parents to take you out in a car. If it is not too hot, touch the tires (輪胎)
of the car before and after a short drive to see how much warmer they get from friction.
1. You'd better make your hands ________ to get heat when you rub them.
A. slippery
B. dry
C. wet
D. smooth
2. What does the word "friction" in this text mean in Chinese?
A. 摩擦
B. 冷卻
C. 膨脹
D. 震動(dòng)
3. ________ is NOT an example of friction.
A. Bike riding
B. Car driving
C. Hands rubbing
D. Friction discovering
4. What's the last column (欄目)?
A. THINK IT OVER!
B. WHAT HAPPENED?
C. EVERYDAY ACTION:
D. WORK WITH PARENTS!
5. This text is most probably ________.
A. a science report
B. a car advertisement
C. a rubbing introduction
D. a chemistry programme
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語(yǔ) 來(lái)源：廣東省中考真題 題型：閱讀理解

閱讀理解。
     It was a great day for a picnic and a picnic was a great day to start the summer holiday. Fred brought his
classmates John and Betty to a wonderful picnic place. After lunch, John said they should play football. When
the ball came to Fred, he locked it into some long grass. "I'll get it." he said and hurried off to find the ball.
Moments later there was a shout and out came Fred holding his leg,"I've bitten by a snake!" 　　
     As the others rushed over to help. Fred began laughing. "Ha! I'm not really hurt." But Betty didn't laugh, "I
can't believe you did that, Fred. I was really frightened for you." 　　
     The friends then decided to go for a swim. John and Betty jumped into the water. Fred was standing on a
long rock by the riverbank and said, "Watch me jump." They shouted excitedly as he went under the water, but
as the seconds passed he didn't come back to the top. The friends became worried. Suddenly they heard Fred's
laugh, "Won't you ever learn? I swam behind this tree when I jumped." 　　
     "Very funny, Fred?" said John angrily. "Anyway, I'm feeling tired and I'm going for a sleep." Betty joined
him. 　　
     Fred, however, moved to a narrow part of the river and jumped in. Although he was a good swimmer, the
water there was moving much faster and Fred found himself dragged away. He managed to catch hold of a tree,
but he was very tired now and with the water still moving very fast, couldn't pull himself out. 　　
     Back at the picnic place, as Betty and John were preparing to sleep, they heard Fred's cries for help, John
looked at Betty and said, "Does he really think we're so foolish? Wake me up in an hour. It'll be time to go back
home then."
1. What happened when Fred went to get the football?
A. He was bitten by a snake.
B. He fell and cut himself.
C. He called for the others to help him.
D. He let out a frightening shout.
2. At the end of the story, why didn't John and Betty go to help Fred?
A. They didn't believe that Fred was really in trouble.
B. They thought Fred was a good swimmer.
C. They couldn't hear his cries for help.
D. They were too tired and needed to rest.
3. The underlined word "dragged" means "_____".
A. pulled
B. held
C. guided
D. gave
4. What can you learn from this story?
A. It is important for a person to tell the truth.
B. You should know how to swim if toy want to play in the river.
C. You must watch out for snakes in the countryside.
D. Picnics can often be dangerous for children.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：湖北省中考真題 題型：閱讀理解

閱讀理解。

     You wouldn't steal a car. You would never rob (搶劫) a bank or pick someone's pocket. But you may
be another kind of thief.
     If you have ever bought a disc for 15 yuan or less, then you have helped to rob artists or musicians of
their intellectual properly rights (知識(shí)產(chǎn)權(quán)).
     Last Thursday was World Intellectual Property Day. Activities to tell people about intellectual property
rights were held around the country.
     Intellectual property includes inventions, literary (文學(xué)的) and artistic works, names, and pictures. They
are of little value (價(jià)值) if they are not read, seen and used.
     While the cost of copying discs is very small, authors, singers and actors have to spend a lot of money
and time making a new product. That's why they have the right to make money from their work.
     So buying pirated (盜版的) music of Jay Chou and Jolin Tsai is like stealing from them, paying them no
respect for their hard work.
     If Jay Chou cannot make money from his work, he may not make anything else. But those who make
pirated goods are becoming rich without doing any hard work.
     The authors should ask for a fair price for their work. Earlier this year there was much talk about how
much KTV clubs should pay the music companies for using their songs.
     The copyright fee (版權(quán)費(fèi)) also should be fair to the users. That's good for the music's popularity and
society as well.

1. What is the author's attitude towards protecting (保護(hù)) intellectual property rights?
A. He is for it. B. He is against it.
C. He doesn't care about it.
D. The article doesn't tell us.
2. Which of the following do intellectual property rights not cover?
A. Inventions.
B. Literary and artistic works.
C. Names end pictures.
D. Pirated music.
3. According to the article, which of the following is true?
A. Authors should ask for a high price for their work.
B. The copyright fee should ha fair to users.
C. Authors, singers and actors have no right to make money from their work.
D. Buying pirated music by Jay Chou is very good.
4. What is the best title for the article?
A. Rob a Bank
B. Copyright Fees
C. Say No to pirated Music
D. World Intellectual Property Day

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：四川省中考真題 題型：閱讀理解

閱讀理解。
     Hi, kids! I'm Guo Qiang from Class 6.
     As you know, it's World Animals' Day, and we're asking you to tell us your opinions about different
animals.
     I like animals. I think camels are the most unusual animal. They hardly ever need to drink water. That's
interesting. Don't you think rats are ugly? I don't like them at all.
     I like cows, because they can give us milk and their meat is the most delicious! I love beef hamburgers!
Ha ha! I'm only joking.
     Seriously, though, I think hens are one of the best animals. Why? Because they can lay eggs. Eggs and
milk are good for our health.
     And I like rabbits, their red eyes and the white color, they are so cute. How about ducks? They are so
lovely, when they are walking, their bodies shake like dancers.
     What do you think of animals? What are your favorite animals and why? Come and tell us on the radio!
1. Which class is Guo Qiang from?
A. 1
B. 2
C. 6
2. What day is it?
A. World Animals' Day.
B. Children's Day.
C. May Day.
3. What's the most unusual animal?
A. Rats.
B. Camels.
C. Cows.
4. What animal does Guo Qiang think is one of the best?
A. Hens.
B. Rabbits.
C. Cows and rabbits.
5. Guo Qiang thinks ducks are ______.
A. ugly
B. very lovely
C. the most delicious

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：北京中考真題 題型：閱讀理解

閱讀理解。

     Do you want to live a happier, less stressful (有壓力的) life? Try laughing for no reason at all. That's
how thousands of people start their day at Laughter Clubs around the world-and many doctors now think
that having a good laugh might be one of the best ways to stay healthy.
     The first Laughter Club was started in Mumbai, India, in 1995 by Dr Madan Kataria. "Young children
laugh about 300 times a day. Adults laugh between 7and 15 times a day," says Dr Kataria. "Everyone's
naturally good at laughing-it' s the universal language. We want people to feel happy with their lives." There
are now more than 500 Laughter Clubs in India and over 1, 300 worldwide.
      Many doctors are also interested in the effects (效果) of laughter on our health. According to a 5-year
study at the UCLA School of Medicine in California, with laughing there is less stress in the body. Laughter
improves our health against illness by about 40%.
     So, what happens at a Laughter Club? I went along to my nearest club in South London to find out. I was
quite nervous at the beginning of the class, to be honest-I wasn't interested in laughing with a group of strangers, and I was worried about looking stupid. Our laughter teacher told us to clap our hands and say"ho ho ho, ha
ha ha," while looking at each other. However, our bodies can' t tell the difference between fake laughter and
real laughter, so they still produce the same healthy effects.
     Surprisingly, it works! After ten minutes everybody in the room was laughing for real and some people
just couldn't stop! At the end of the class I was surprised by how relaxed and comfortable I felt. So if you're
under stress, then start laughing. You might be very pleased with the results!
1. In which country was the first Laughter Club started?
A. Britain.
B. America.
C. Australia.
D. India.
2. How did the writer feel at the beginning of the class?
A. Surprised.
B. Pleased.
C. Nervous.
D. Stressful.
3. When did the people in the club begin to laugh for real?
A. After a few minutes.
B. After a few hours.
C. After a few seconds.
D. After a few days.
4. Which of the following is true according to the passage?
A. Fake laughter and real laughter are both good for health.
B. 40% of the people in Laughter Clubs are good friends.
C. Adults laugh more often than children in a day.
D. Laughing is the best way to prevent illness.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：同步題 題型：閱讀理解

閱讀理解
       When you are feeling unhappy or forget how great you are, these are six ways to make you feel 
good about yourself.     
       ◆ Look in the mirror and say to yourself, "I am a special person and there's no one in the world 
like me.  I can do anything!" It may not sound so good, but it really works!     
       ◆Do something nice for someone.  Helping others always makes you feel good.     
       ◆ Smile! Be friendly to people you meet.  Look for the good things in your friends and family.   
       ◆ Learn something new! Have you always wanted to decorate your own room or learn how to
 swim? Go for it! New challenges are fun and give you a sense of accomplishment when you ha've
 finished.    
       ◆ Read and start a diary.  Turn off the TV and let your imagination fly! Write down your thoughts,
 dreams or anything you want! Writing always helps to express your feelings.     
       ◆ Stay with your family.  We all need our family time.  Talk with your Mum or Dad or maybe
 even your cousin.
1. If you say something nice to yourself in the mirror,  you'll find_______.          
A. it's useless  
B. it's funny  
C. it really works  
D. it sounds bad
2. When you are helping others, you'll _______.         
A. be special  
B. be sure    
C. feel nice      
D. be remembered
3. What does the phrase "a sense of accomplishment" mean?         
A. 成就感    
B. 憂傷感    
C. 挫折感  
D. 信任感
4. Which of the following should you say "NO" to when you are unhappy?          
A. You should always look for the good things of others.          
B. Stay alone at home as much as possible.          
C. Learn something new and go for it!          
D. Keep a diary to express your feelings.
5. The writer tells us six ways to_______.          
A. make friends with others          
B. help other people          
C. express our feelings              
D. make us feel confident

查看答案和解析>>

同步練習(xí)冊(cè)答案