Have you ever counted the number of digits (数...

Have you ever counted the number of digits (数字) in your mobile phone number? Your number has 11 digits. You may sometimes find it hard to remember your number. That’s because China has the longest mobile phone numbers in the world. Why is that?

The 11 digits can be divided into three parts. Each pare has a different meaning. The first three numbers tell you which mobile phone service provider you are using. For example,135 is for the China Mobile Communications Corporation ( 中 国 移 动 ) and 188 is for China Unicom ( 中 国 联 通 ). The fourth to the seventh digits tell you which region the number is registered (注册) in. And the last four digits are random (随机的).

The main reason for using 11 digits is that we have the largest population in the world. We once had 10 numbers. But as our population grew, there were not enough numbers for us to use. So we began to use 11 digits starting from 1999.

Eleven digits can be used to make tens of billions of mobile phone numbers, according to the Xinhua News Agency. That’s enough for each person to have seven or eight phone numbers to use in China.

Plus, mobile phone numbers can be recycled. Usually, the service provider will reuse a canceled number after three to six months. If you call a number that you haven’t contacted for a long time, you may find that its owner has changed.

Besides China, Britain and Japan also use 11-digit　 mobile phone numbers. But their numbers always start with 0. So they cannot create as many numbers as we can. Countries like　 the United　 States,　 Australia　 and India　 use phone numbers　 with 10 digits.　 Canada’s mobile phone numbers are perhaps the world’s shortest: they use seven digits.

1.Which country has the longest mobile phone numbers in the world?

____________________________does.

2.What can we know from the first three digits of a phone number?

The first three digits stand for_____________________.

3.Why does China use 11 digits for phone numbers?

Because___________________________.

4.When can a phone number be recycled?

The service provider will ___________________________.

5.Do Canadians have the world’s shortest mobile phone numbers?

___________________________________________.

九年级英语回答问题中等难度题查看答案及解析

根据短文内容,回答下列问题。

(2018·山东临沂)Have you ever counted the number of digits (数字) in your mobile phone number? Your number has 11 digits. You may sometimes find it hard to remember your number. That’s because China has the longest mobile phone numbers in the world. Why is that?

The 11 digits can be divided into three parts. Each part has a different meaning. The first three numbers tell you which mobile phone service provider (提供者) you are using For example, 135 is for China Mobile Communications Corporation and 188 is for China Unicom. The fourth to the seventh digits tell you where the number is registered (注册). And the last four digits are random (随机的).

The main reason for using 11 digits is that we have the largest population in the world. We once had 10 numbers. But as our population grew, there were not enough numbers for us to use. So we began to use 11 digits starting from 1999. Eleven digits can be used to make tens of billions of mobile phone numbers. That’s enough for each person to have seven or eight phone numbers to use in China.

And mobile phone numbers can be recycled. Usually, the service provider will reuse a canceled number after three to six months. If you call a number that you haven’t contacted (联系) for a long time, you may find that its owner has changed.

Besides China, Britain and Japan also use 11-digit mobile phone numbers. But their numbers always start with 0. So they cannot create as many numbers as we can. Countries like the United States, Australia and India use phone numbers with 10 digits. Canada’s mobile phone numbers are perhaps the shortest in the world: they use seven digits.

1.Is China the only country that uses 11-digit mobile phone numbers in the world?

________________________________________________________________

2.What can we know from the fourth to the seventh digits of a mobile phone number in China?

________________________________________________________________

3.Why does China use 11 digits for mobile phone numbers?

________________________________________________________________

4.When can a mobile phone number be recycled in China?

________________________________________________________________

5.Which country perhaps has the shortest mobile phone numbers in the world?

________________________________________________________________

九年级英语回答问题中等难度题查看答案及解析

When you are sitting in class, have you ever drawn pictures in the margins (页边的空白处) of your notebooks? If so, you are doodling. Many people think of doodling as a distraction (分心) from more important things. But it might be just the opposite. Doodling might help one focus on work.

One study shows that doodling may help you remember things you hear. In 2009 researchers asked two groups of people to listen to a phone message. One group was encouraged to doodle, but the other was not. Neither group knew that it would be asked to remember information from the message. But the group that doodled remembered 29% more.

Other people have suggested other uses for doodling. Jesse Prinz, a professor who studies doodling, says it can help you think creatively. Walking away from a problem to draw might actually help you solve it. When you come back, you'll have a fresh perspective (观点) and figure out an answer more quickly.

An author named Sunni Brown wrote a book on doodling. She argues that doodling is a tool that can help people think. She admits that people see doodling as doing nothing, but she wants to change that. In fact, she runs a business that helps companies improve organization and planning through doodling.

Brown believes doodling is helpful because it includes many ways of learning. You learn in four ways: seeing, hearing, reading or writing, and through movement. The more ways you use, the better you learn. And when you doodle while listening to a lecture, you use all four.

You might think that being good at drawing is important for doodling. But if the point of doodling is to help you think, then it doesn't matter what the picture looks like. Even if you're not an artist, doodling can help you. So next time you need help focusing, pick up a pen and doodle away!

1.Which of the following is true?

A.Jesse Prinz thinks doodling can help people remember better.

B.Brown believes doodling involves four ways of learning.

C.One study shows doodling is a distraction from more important things.

D.Many people think that doodling may be good for your learning and thinking.

2.According to the passage, when you have a problem, you might find a way to solve it by ________.

A.having a conversation B.watching a movie

C.drawing lines or shapes D.wondering in the park

3.The writer probably agrees ________.

A.doodling has drawn more attention B.doodling needs good drawing skill

C.doodling develop one's patience D.doodling helps one focus attention

4.What's the passage mainly about?

A.The problems of doodling. B.The causes of doodling.

C.The advantages of doodling. D.The side effects of doodling.

九年级英语阅读单选中等难度题查看答案及解析

When you're sitting in class, have you ever drawn pictures in the margins(页边的空白处) of your notebooks? If so, you are doodling. Many people think of doodling as a distraction(精神焕发) from more important things. But it might be just the opposite.

One study shows that doodling may help you remember things you hear. In 2009 researchers asked two groups of people to listen to a phone message. One group was encouraged to doodle, but the other was not. Neither group knew that it would be asked to remember information from the message. But the group that doodled remembered 29% more.

Other people have suggested other uses for drawing. Jesse Prinz, a professor who studies doodling, says it can help you think creatively. Walking away from a problem to draw might actually help you solve it. When you come back, you will have a fresh perspective(观点) and figure out an answer more quickly.

Two years ago, an author named Sunni Brown wrote a book on doodling. She argues that doodling is a tool that can help people think. She admits that people see doodling as doing nothing, but she wants to change that In fact, she runs a business that helps companies improve organization and planning through doodling. Brown believes doodling is helpful because it includes many ways of learning. You learn in four ways: seeing, hearing, reading or writing, and through movement. The more ways you use, the better you learn. And when you doodle while listening to a lecture, you use all four.

You might think that being good at drawing is important for doodling. But if the point of doodling is to help you think, then it doesn't matter what the picture looks like. Even if you're not an artist, doodling can help you. So next time you need help focusing, pick up a pen and doodle away !

1.Who wrote a book on doodling? ______

A.The writer B.Jesse prinz C.Sunni Brown. D.A teacher.

2.The writer probably agrees that ______ .

A.doodling should be done while listening to a lecture

B.doodling can help you remember information very quickly

C.doodling can help you pay attention to what you are doing

D.doodling can take peoples attention from more important things

3.Which of the following would be the best title for the massage? ______

A.Learning to doodle B.Planning through doodling

C.Drawing might help you think D.Doodling while sitting in class

九年级英语阅读单选简单题查看答案及解析

Do you know how many numbers there are in your cellphone number? Your cellphone number has 11 digits(数字). You may sometimes find it hard to remember your number. China has the longest cellphone numbers in the world, longer than the US or Australia. Why is that?

The 11 digits can be divided into three parts. Each part has a different meaning. The first three numbers tell you which mobile phone service provider you are using. For example, 135 is for the China Mobile Communications Corporation and 186 is for China Unicom. The fourth to the seventh digits tell you which area the number is registered (注册) in.　 And the last four digits are random. You may get the last numbers that you like or not.

The main reason for using 11 digits is that we have the largest population in the world. We once had 10 numbers. But as our population grew, there were not enough numbers for us to use. So we began to use 11 digits starting from 1999.

Cellphone numbers can be recycled. Usually, the service provider will reuse a canceled number after three to six months. If you call a number that you haven't contacted (联系) for a long time , you may find its owner has changed.

Besides China, Britain and Japan also use 11-digit cellphone numbers. But their numbers always start with 0. So they cannot create as many numbers as we can. Countries like the US, Australia and India use cellphone numbers with 10 digits, Canada's cellphone number are perhaps the world ' s shortest. They use seven digits.

1.Among the 11 digits, which digits can tell where the cellphone number is registered?

A. The first to the fourth digits.　　 B. The third to the sixth digits.

C. The fourth to the seventh digits.　　 D. The fifth to the eighth digits.

2.What does the underlined word "random" mean?

A. 有规则的　　 B. 奇怪的　　 C. 随机的　　 D. 事先安排的

3.Which country has the cellphone number with ten digits?

A. Britain.　　 B. Japan.　　 C. Canada.　　 D. India.

4.What can we learn from the last two paragraphs?

A. Cellphone numbers in Britain start with 0.

B. Cellphone numbers can be divided into 4 parts.

C. A canceled number can be reused after a month.

D. The cellphone number in Australia is the shortest.

5.What ' s the best title of this text?

A. What the meaning of cellphone numbers is?

B. Why our cellphone numbers have 11 digits?

C. When the first cellphone number was created?

D. Which country has the longest cellphone number?

九年级英语阅读单选中等难度题查看答案及解析

1.Victor wants to buy a present for his 4-year-old cousin. He could buy 　　　　 .

A. the digital atomic watch　　　　 B. the dolphin wood kit　　　　 C. the Russian nesting dolls

2.If you know how to make up the dolphin wood kit, you need 　　　　 to help you to finish it.

A. nothing　　　　　　　　　　　　 B. glue　　　　　　　　　　　　 C. some tools

3.If you use a digital atomic watch, you should buy a battery 　　　　 .

A. every half year　　　　　　　　 B. every year　　　　　　　　　 C. every two years

4.Maria wants to buy two sets of the nesting dolls and two dolphin wood kits, she should pay 　　 .

A. $ 65　　　　　　　　　　　　　　 B. $ 66　　　　　　　　　　　　　 C. $ 23

5.From the ads we know that 　　　　 .

A. you can’t wear the digital atomic watch when you go surfing

B. if you don’t know how to make up the dolphin wood kit, you can follow the instruction

C. the painting of the Russian nesting dolls are made by machines.

九年级英语阅读理解中等难度题查看答案及解析

– A number of students ________ in the dining hall.

-- Let me count. The number of the students ________ about 400.

A. are, is　 B. is, are　 C. are, are　 D. is, is

九年级英语单项填空中等难度题查看答案及解析

—A number of students________in the dining hall．

—Let me count．The number of the students________about 400．

A．are；is

B．is；are

C．are；are

九年级英语单项填空中等难度题查看答案及解析

Have you ever heard an echo of your voice?

An echo is a reflected(反射)sound. Stand in a very large, empty hall with nothing on the walls. Then shout. The sounds you make will hit the walls and come back to you. The walls reflect the sounds. These reflected sounds are called “echoes”.

We can use reflected sound to make sound travel farther. Hold a watch about fifty centimeters from your ear. You cannot hear it. The sound of the watch travels a short way in all directions. It does not travel as far as your ear. You can make it travel to your ear by using a roll of cardboard(纸板筒).

Make the roll of cardboard about fifty centimeters long. Put one end over your ear and hold the watch at the other. Now you can hear the watch because the sound has not gone in all directions. It is reflected down the roll to your ear.

A megaphone(喇叭筒)works in the same way. It makes sound travel farther. It reflects the sound into a beam which can travel a long way. In the ship, the sailor uses the megaphone to make his voice travel. Without the megaphone, his voice cannot travel far.

We use reflected sound in many ways. We use it to measure the depth of the sea, for example. Among the animals, bats and whales use reflected sound to tell them where they are and what things are near them.

1. Which is the right order of hearing our echo in a very large, empty hall?

a. We hear the reflected sound       b. The sound returns to us

c. The sound hits the walls          d. We make a sound

2.. From the text we learn that __________ .

3. If you haven’t got a megaphone, ____ will help you to make your voice travel farther.

九年级英语阅读理解极难题查看答案及解析

Have you ever heard an echo of your voice?

An echo is a reflected(反射)sound. Stand in a very large, empty hall with nothing on the walls. Then shout. The sounds you make will hit the walls and come back to you. The walls reflect the sounds. These reflected sounds are called “echoes”.

We can use reflected sound to make sound travel farther. Hold a watch about fifty centimeters from your ear. You cannot hear it. The sound of the watch travels a short way in all directions. It does not travel as far as your ear. You can make it travel to your ear by using a roll of cardboard(纸板筒).

Make the roll of cardboard about fifty centimeters long. Put one end over your ear and hold the watch at the other. Now you can hear the watch because the sound has not gone in all directions. It is reflected down the roll to your ear.

A megaphone(喇叭筒)works in the same way. It makes sound travel farther. It reflects the sound into a beam which can travel a long way. In the ship, the sailor uses the megaphone to make his voice travel. Without the megaphone, his voice cannot travel far.

We use reflected sound in many ways. We use it to measure the depth of the sea, for example. Among the animals, bats and whales use reflected sound to tell them where they are and what things are near them.

1.What is called “echo”?

A．Very loud voices.

B．Very loud voices that are made by man.

C．Very loud voices that are made by animals.

D．The sound that is made by man or animals comes back from some place.

2.We can hear our echoes if we________.

A．shout in a small room

B．shout in a large house full of things

C．shout in narrow valleys(山谷)

D．shout in the open air

3.Which is the right order of hearing our echo in a very large, empty hall?

a. We hear the reflected sound

b. The sound returns to us

c. The sound hits the walls

d. We make a sound

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

4.From the text we learn that __________ .

A．reflected sound is useful only to blind people

B．people haven’t made use of reflected sound yet

C．bats use reflected sound to fly and get food

D．whales don’t use reflected sound as they live in the sea

5.If you haven’t got a megaphone, ____ will help you to make your voice travel farther.

A．a long piece of wood                     B．a roll of cardboard

C．a thin thread                           D．a long piece of silk

九年级英语阅读理解中等难度题查看答案及解析