Column A Column B □ ① Play games on the Internet □ ② Make new friends □ ③ Lo——青夏教育精英家教网—

Column A Column B □ ① Play games on the Internet □ ② Make new friends □ ③ Look for information to help study □ ④ Do some shopping □ ⑤ email and chat with friends □ ⑥ Enjoy music and videos A. 49% B. 3% C. 80% D. 15% 11. How many items do you tick in Column A? A. Three. B. Four. C. Five. 12. How many students play games on the Internet according to the survey? A. 26 B. 16 C. 5 13. How many students use the Internet to help study according to the survey? A. 26 B. 1 C. 5 14. How many students communicate with friends on the Internet according to the survey? A. 16 B. 1 C. 5 15. Who could the speaker probably be? A. A teacher. B. A student. C. A tour guide. 【查看更多】

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

Make sure your hands are dirty.

Rub your hands together until you feel the heat of your hands.

Now, use soap and water to get your hands very slippery(滑的).

Try to make friction happen while your hands are slippery.

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?

Friction happens when you stop your fast running bike.

Ancient people made fire 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 hot, touch the tires(轮胎) of the car before and after a short drive to see how much warmer they get from friction.

1. This text is most probably________________________.

A. a science report????????????? ????????????? ????????????? 　 B. a car advertisement

C. a rubbing introduction?????? D. a chemistry programme

2.What does the word “friction” in this text mean in Chinese????????

A.摩擦????????????? ????????????? B. 冷却??????? C. 膨胀????????????? ????????????? ????? D.震动

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(栏目)?

A. THINK IT OVER!????????????? ????????????? ????????????? ????????????? ?? B. WHAT HAPPENED?

C.EVERYDAY ACTION:????????????? D. WORK WITH PARENTS

查看答案和解析>>

阅读理解

　　“I don't see why I can't be the best person to write an advice column (建议专栏) for the students called Dear Amy! ” Andy said to Jenny, the editor (编辑) of the school newspaper. Andy agreed to do it if Jenny did not tell it to anyone else.

　　At first it wasn't too bad. Most of the letters he received were interesting and quite easy to answer. Then came a letter from a person named Joe.

　　“Dear Amy,” it began. “I'm in real trouble. I've wanted to be a songwriter all my life, but my parents won't even let me take music lessons. I have a guitar (吉他), but they both get angry if I play it. I've tried explaining (解释), but they won't listen. I feel sad. Should I run away from home? Maybe that will make my parents change their minds! ” The letter was written by “Joe”.

　　Andy thought about this letter for a long time. Should he advise (建议) someone to run away from home? No. But didn't Joe have a right (权力) to be a songwriter if he wanted to? Andy thought hard but couldn't think out a good answer. Andy couldn't sleep. He just worried about poor Joe.

　　In a reading room a few days later, Eleanor, a girl in Andy's maths class, sat down next to him and said, “You look a little bit worried. ”

　　“I guess I do,” said Andy.

　　“If you've got a problem, why don't you try writing to Dear Amy about it? ” asked Eleanor.

　　Andy groaned (呻吟), but she went on. “I guess Dear Amy is rather busy with other problems. She still hasn't answered the phoney letter I wrote her last week. You'd better read it. It may make even the most hard-hearted person cry! It was thought to be from a songwriter named Joe. ”

(1) From the first paragraph (段落) we can see that

[　　]

A. Andy can't be the best person to write an advice column

B. Andy wouldn't like to do the work for the school newspaper

C. Andy didn't agree to do the work for the school newspaper

D. Andy would like to do the work for the school newspaper

(2) In the story, it seemed that ________.

[　　]

A. Jenny could not answer the letter from Joe

B. Joe was in real trouble and needed help

C. Eleanor had made great trouble for Andy

D. Andy had changed his name into Amy

(3) When they were talking in the reading room,

[　　]

Andy groaned because ________.

A. Andy could not answer Joe's letter

B. Eleanor's advice made Andy hard to say a word

C. Joe's problem troubled Andy a lot

D. Amy was rather busy with other problems

(4) The meaning of the word “phoney” in the last paragraph is ________.

[　　]

A. rather difficult

B. not real

C. very strange

D. quite short

(5) The writer of the story mainly (主要) wants to tell us

[　　]

A. a joke

B. about Andy's work

C. a story about Joe

D. about a school newspaper

查看答案和解析>>

阅读理解

　　Recently, a solar powered(太阳能动力的)plane took to the sky for the first time．It had passed an important test on the way to travel around the world．

　　The plane took off from an airport in Switzerland(瑞士)at 45km an hour．It slowly rose above the fields and into the sky．

　　“There has never been an airplane of that kind that could fly－never an airplane so big, so light, using so little energy,”said Bertrand Piccard, a leader of the project．

　　During the 90-minute flight, the plane did several turns．It climbed nearly 1.6km above the countryside．

　　Engineers plan to test a night flight before July．Then they will use the results of the tests to build a second plane．They plan to travel around the world in that plane in 2012．

　　The plane flies at 70 km an hour．That is faster than a bike and slower than a car．Piccard and pilot Andre Borschberg will take the plane around the world．The pilots will keep the plane in the air for up to five days at a time．

　　“We want to fly it day and night with no fuel(燃料),”Piccard said

(1)

How long did the first flight of the solar powered plane last?
[　　]
A．	45 minutes
B．	60 minutes
C．	70 minutes
D．	90 minutes

(2)

What's the most special about the plane?
[　　]
A．	It uses no fuel
B．	It's the fastest plane
C．	It can fly highest
D．	It's the heaviest plane

(3)

Which of the following is NOT true according to the passage?
[　　]
A．	The plane goes much faster than a car
B．	The plane took off at a speed of 45km an hour
C．	Engineers plan to test a night flight before July
D．	The plane will fly in the air or up to five days at a time

(4)

Which column(栏目)of a newspaper may the passage come from?
[　　]
A．	Food and Health
B．	Scientist and Technology
C．	Culture and Communication
D．	Sports and Entertainment

查看答案和解析>>

阅读理解

　　The morning was a bit cold, but Li Yanbo quickly got out of his warm bed when it was 7∶30．He picked up two plastic buckets(塑料桶)and rushed to the center of the village, where a fire truck arrives once a day to provide water for them．

　　Li, a 24-year-old farmer, lives in Liguan village, Songming－about 60km away from Kunming．For the last three months, he has risen early to meet the fire truck because the village's only reservoir(水库)has dried up．Rain hasn't fallen for six months．

　　The queue is very long by the time Li arrives．About 4,000 thirsty villagers come with their empty buckets and stand behind the truck．

　　“My family gets two or three buckets of water every day．We use them for drinking, washing and cooking,”said Li．“If we save a little every day, then once a week we can have a short bath．”

　　Li planted two mu of broad beans(蚕豆)last autumn, but he has earned nothing because of the drought(干旱)．As usual, he would plant rice after getting in the beans．But the field is so dry that he can't even plough(耕田)it．

　　“The rice is food for my family－my parents and younger brother．We have no more money to buy rice from the market,”said Li．

　　Like most people in his village, growing tobacco(烟草)provides the family's meal ticket．Usually, Li's three mu of tobacco earns him near 10,000 yuan．But now…Luckily, local governments are trying to help families like Li's by hunting for new water resources(资源)．

　　How important it is to save water!Li says“It has taught me that, if we use water correctly, two buckets a day should be enough for four family members．We can recycle(循环利用)the water for many different uses,”said Li．“Every drop of water is worth a lot of money．I hope people realize this．”

(1)

What does the underlined word“them”mean?
[　　]
A．	Li Yanbo's family members
B．	Plastic buckets
C．	The fire engines
D．	The villagers

(2)

Why has the village's only reservoir dried up?
[　　]
A．	Because there has been no rain for half a year．
B．	Because the local people use water in it too much．
C．	Because the local people don't know how to save water．
D．	Because the governments haven't found new water resources．

(3)

Which of the following will most probably happen according to the passage?
[　　]
A．	Li Yanbo will have to leave his home for a better life．
B．	Most families like Li's will have to carry water from far away．
C．	Li Yanbo will hardly earn anything from his farm work this summer．
D．	The villagers like Li will live a hard life because they haven't got any help．

(4)

The writer wrote this passage mainly to tell us ________．
[　　]
A．	how serious the drought is in this village
B．	it's important to save and use water correctly
C．	what has been done to help the local people by the government
D．	we should try our best to collect money to help the people in the disaster area

(5)

In which column(栏目)of the newspaper can we most probably read this passage?
[　　]
A．	China today
B．	News
C．	Business
D．	Life

查看答案和解析>>

阅读理解

　　“I don't see why I can't be the best person to write an advice column (建议专栏) for the students called Dear Amy! ” Andy said to Jenny, the editor (编辑) of the school newspaper. Andy agreed to do it if Jenny did not tell it to anyone else.

　　At first it wasn't too bad. Most of the letters he received were interesting and quite easy to answer. Then came a letter from a person named Joe.

　　“Dear Amy,” it began. “I'm in real trouble. I've wanted to be a songwriter all my life, but my parents won't even let me take music lessons. I have a guitar (吉他), but they both get angry if I play it. I've tried explaining (解释), but they won't listen. I feel sad. Should I run away from home? Maybe that will make my parents change their minds! ” The letter was written by “Joe”.

　　Andy thought about this letter for a long time. Should he advise (建议) someone to run away from home? No. But didn't Joe have a right (权力) to be a songwriter if he wanted to? Andy thought hard but couldn't think out a good answer. Andy couldn't sleep. He just worried about poor Joe.

　　In a reading room a few days later, Eleanor, a girl in Andy's maths class, sat down next to him and said, “You look a little bit worried. ”

　　“I guess I do,” said Andy.

　　“If you've got a problem, why don't you try writing to Dear Amy about it? ” asked Eleanor.

　　Andy groaned (呻吟), but she went on. “I guess Dear Amy is rather busy with other problems. She still hasn't answered the phoney letter I wrote her last week. You'd better read it. It may make even the most hard-hearted person cry! It was thought to be from a songwriter named Joe. ”

(1) From the first paragraph (段落) we can see that

[　　]

A. Andy can't be the best person to write an advice column

B. Andy wouldn't like to do the work for the school newspaper

C. Andy didn't agree to do the work for the school newspaper

D. Andy would like to do the work for the school newspaper

(2) In the story, it seemed that ________.

[　　]

A. Jenny could not answer the letter from Joe

B. Joe was in real trouble and needed help

C. Eleanor had made great trouble for Andy

D. Andy had changed his name into Amy

(3) When they were talking in the reading room,

[　　]

Andy groaned because ________.

A. Andy could not answer Joe's letter

B. Eleanor's advice made Andy hard to say a word

C. Joe's problem troubled Andy a lot

D. Amy was rather busy with other problems

(4) The meaning of the word “phoney” in the last paragraph is ________.

[　　]

A. rather difficult

B. not real

C. very strange

D. quite short

(5) The writer of the story mainly (主要) wants to tell us

[　　]

A. a joke

B. about Andy's work

C. a story about Joe

D. about a school newspaper

查看答案和解析>>

练习册

高中

初中

小学