Have you ever heard an echo of your voice?An ...

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

Have you ever heard your own voice? “Of course,” you say. Has anyone else ever heard your voice? Again you say, “Of course.”But that’s not quite true. Nobody else has ever heard your voice—the way you hear it. When you talk, you set up sound waves(声波). The air outside your head carries the sound waves to your outer ears. But, of course, the sound of your voice begins inside your head. The bones(骨头) of your head pick up the sound waves, too. They carry the sound waves straight to your inner(里面的) ears. You get the sound from the outside and the inside too. Other people get just the sound waves from the outside. That’s why they don’t hear your voice the way you do.

1.The sound of your voice begins ________.

A. inside your head　　 B. outside your head

C. in your inner ears D. in your outer ears

2.When you talk, other people hear your voice _______.

A. through the bones of your head

B. from the outside

C. from the inside

D. all of the above

3.The phrase “pick up” here means ________.

A. to raise　　　 B. to get

C. to choose　　 D. to pull

4.The passage is mainly about _________.

A. waves in the air

B. the way you hear your own voice

C. voice gets around far and wide

D. the different ways you and others hear your voice

九年级英语阅读理解中等难度题查看答案及解析

Have you ever heard of Weifang, Shangdong Province? What is it known for? There is an international kite festival every April in Weifang that is a modern city with many traditions. People from all over the world compete in the kite flying. There are also competitions for the best kites. The kites in the competition are all made by hand.

Most people have flown a kite. It makes people happy. It’s easy to make it. It’s made of bamboo and paper. But not so many people know that kites were first made in China thousands of years ago. The ancient Chinese made and flew kites even before they could write.

A long time ago, the Chinese made kites to use in wars. They would fly these war kites in the dark. The kites were fixed and they made strange sounds in wind. Men who were at war against them would hear these sounds and run away. They thought those strange sounds were made by gods in the sky.

The ancient Chinese also flew kites to bring good luck and to make their crops grow rich and tall. Sometimes they tied long strings and hooks(钩子) to their kites. Then they would fly the kites over water, letting the hooks hang down to catch fish.

The Chinese use sticks, string and paper for their kites. Some of these kites look like animals or trees and others look like houses.

1.Chinese made and flew kites ___________.

A. two thousand years ago　　 B. before they could write

C. after they write　　　　　　　 D. three thousand years ago

2.The main idea of the first paragraph is “____________”.

A. the city Weifang　　　　　　 B. the international kite festival

C. how to make a kite　　　　 D. how to fly a kite

3.In ancient China kites could be used for __________.

A. helping people fly　　　　　　 B. playing games

C. watering crops　　　　　　　　 D. catching fish

4.The ancient Chinese used kites in wars because the kites __________.

A. could bring good luck

B. looked like animals.

C. could make strange sounds and help them in a war.

D. could brought light in the dark for them.

5. _________ are used for making kites by the Chinese.

A. Paper and plastic　　　　 　　 B. String and paper

C. Sticks, string and paper　　 D. String and hooks

九年级英语阅读理解中等难度题查看答案及解析

阅读下面短文，从短文后所给各题的四个选项（A、B、C 和D）中，选出可以填入空白处的最佳选项。

Have you ever heard of Agatha Christie, an excellent writer? Agatha Christie is, without a doubt, 16  mystery writer in the world. Her books have been translated into more than 100 languages. All 77 novels and story collections she wrote are still on the market 25 years after her 17 .

Agatha Christie was born in 1890 in a southwest England seaside town. She enjoyed a very comfortable childhood in a big house with 18  servants(仆人). Agatha was known 19  an imaginative child. With her sister and brother away at school, she often played alone. She passed the time by making up stories which she told to 20 .

Agatha Christie’s first novel was published in 1920. In it, she 21 one of her most popular characters, Belgian detective Hercule Poirot. He went on to appear in 33 of her novels, and in several movies 22 . Although Poirot appears again and again in her novels, Christie certainly could not be considered as repeating her ideas. Her powers of invention and her ability to surprise continue to attract 23 readers around the world.

Christie also wrote several 24 . One of these, “The Mousetrap”, became the longest-running play in the history of theater. It is about a murder mystery that 25  in a country house. All these mysterious stories earned her the title “Queen of Crime”.

1.

A. more practical                  B. more famous

C. the most famous                 D. the most practical

2.

A. loss           B. birth           C. death        D. arrival

3.

A. much         B. plenty of        C. lots          D. a lot

4.

A. as            B. like             C. by           D. for

5.

A. her brother    B. her             C. herself        D. her sister

6.

A. created       B. produced        C. built          D. continued

7.

A. also          B. besides          C. as well        D. either

8.

A. million        B. millions         C. millions of     D. million of

9.

A. stories        B. plays            C. movies        D. comedies

10.

A. takes place    B. takes in          C. takes off       D. takes down

九年级英语完形填空简单题查看答案及解析

Have you ever heard _________ interesting story?

A. so an　　　　 B. such an　　　　　 C. so

九年级英语单项填空简单题查看答案及解析

Have you ever heard “You never get a second chance to make a first impression”? It may sound like an unusual piece of advice, but it is_______. The first impression someone has of you when meeting you for the first time will_______influence how that person treats you in the future. What is even more interesting is that the brain takes in all the_______to create that first impression in about three seconds. When you meet someone for the first time, by the time you have stated your name, the other person has already _______an opinion about the kind of person you are.

So how do you make a good first impression? All things grown-ups tell you such as being polite and being well-dressed are very_______. However, the most important tool for making a good first impression is your_________. Smiling, being responsive（响应的）, and looking like you are happy will always leave a _______ impression on people,　 especially those who don’t know you. Most people, generally speaking, are ready to_______ back when they are smiled at.

Furthermore, smiling and being in a positive mood help you to know and_______new things better. This means that you can possibly be friendlier to people you don’t know and be more creative and able to solve problems more quickly. So if you ever need a________ to be happy, think about the wonderful people you might meet and impress them with a cheerful smile.

1.A.simple B.true C.impossible

2.A.probably B.carelessly C.wisely

3.A.permission B.success C.information

4.A.improved B.refused C.formed

5.A.educational B.important C.different

6.A.arms B.hands C.face

7.A.terrible B.positive C.difficult

8.A.smile B.cry C.shout

9.A.forget B.understand C.celebrate

10.A.mistake B.discovery C.reason

九年级英语完型填空中等难度题查看答案及解析

An apple a day keeps a doctor away. Have you ever heard anyone say this? Do you think if people eat one or two apples a day they won’t get sick? Last year some scientists wanted to find out if this old saying is true. They divided a college class into two groups. The first group ate 2 apples a day. The second group didn’t eat apples. After six months they added up the times the young people got sick. The apple eaters turned out to be healthier than those who hadn’t eaten apples. It seemed to show that an apple a day does keep people healthy.

根据短文内容，判断正（A）误（B）。

1.An apple a day can make you strong enough to drive a strong doctor away.

2.If people eat an apple a day without eating other food they won’t get sick at all.

3.Scientists found out that the old saying is true

4.The second group was not as healthy as the first group.

5.Nowadays the old saying doesn’t work any more.

九年级英语阅读判断中等难度题查看答案及解析

Have you ever heard of e-waste, which can be produced every day? How do you deal with your computers, MP4 players and mobile phones when they’re broken or you want a new one?

Most people just throw them away. With the development of electric industry, e-waste pollution has become a serious problem. According to the United Nations, in 2014, people around the world produced 41.8 million tons of e-waste and only recycled 6.5 million tons. The US was the biggest waster, producing 7.1 million tons. China came second, with 6 million tons.

It’s important to pay attention to e-waste. It can either be valuable or harmful, depending on how we deal with it. E-waste is a valuable urban mine. The value of the metals, like gold and silver in the waste around the world, is amazing. And the metals can be reused. But if people throw them away, the toxic chemicals can get into the earth or air, effecting the environment and people’s health.

Apple, for example, now recycle people’s used products in China when they are buying new ones. The company will test and repair the used ones and sell them at lower prices. To help reduce e-waste, we can also take computers and phones to see if companies offer recycling programs.

1.How many tons did the people around the world produce e-waste in 2014?

A. 6.15 million tons　　　　　 B. 7.1 million tons

C. 41.8 million tons　　 　 　　 D. 6 million tons

2.The following can become e-waste EXCEPT ______.

A. textbooks　　　　　　　　　 B. mobile phones

C. MP4 players　　　　　 　　 D. computers

3.If people throw the metals away, the toxic chemicals can get into the earth or air, it will be ______ to people’s heath.

A. good　　　　　　　　　　　　 B. helpful

C. valuable　　　　　 　　　 D. harmful

4.Which statement is TRUE according to Paragraph 4?

A. the recycle Apple products will be sold at higher prices.

B. Some companies offer to recycle the used electronic products.

C. it’s better to keep the unwanted electronics in your bedroom.

D. buying longer lasting electronic products is a good way to reduce e-waste

5.The main purpose of this passage is to ______.

A. advise people to deal with e-waste properly to reduce pollution.

B. encourage people to buy more electronic products.

C We should throw away the broken electronic products.

D. prove that e-waste is useless.

九年级英语阅读理解中等难度题查看答案及解析

Have you ever heard of e-waste, which can be produced every day? How do you deal with your computers, MP4 players and mobile phones when they’re broken or you want a new one?

Most people just throw them away. With the development of electric industry, e-waste pollution has become a serious problem. According to the United Nations, in 2014, people around the world produced 41.8 million tons of e-waste and only recycled 6.5 million tons. The US was the biggest waster, producing 7.1 million tons. China came second, with 6 million tons.

It’s important to pay attention to e-waste. It can either be valuable or harmful, depending on how we deal with it. E-waste is a valuable urban mine（城市矿藏）. The value of the metals, like gold and silver in the waste around the world, is amazing. And the metals can be reused. But if people throw them away, the toxic（有毒的）chemicals can get into the earth or air, affecting the environment and people’s health.　　

Apple, for example, now recycle people’s used products in China when they are buying new ones. The company will test and repair the used ones and sell them at lower prices. To help reduce e-waste, we can also take computers and phones to see if companies offer recycling programs.

1.The following can become e-waste EXCEPT_____.

A. computers　　 B. mobile phones　　 C. plastic bags　　 D. MP4 players

2.Which country produced most e-waste last year according to the United Nations?

A. America.　　 B. China.　　 C. Japan.　　 D. the UK

3.What does the underline word “affecting” mean in this passage?

A. protecting　　 B. influencing　　 C. improving　　 D. changing

4.From Paragraph 4, we learn that_____.

A. the recycle Apple products will be sold at higher prices.

B. buying longer lasting electronic products is a good way to reduce e-waste.

C. it’s better to keep the unwanted electronics in your bedroom.

D. Used electric products can’t be recycled.

5.The main purpose of this passage is to_____.

A. prove that e-waste is useless.

B. encourage people to buy more electronic products.

C. advise people to deal with e-waste properly to reduce pollution.

D. talk about the value of e-waste.

九年级英语阅读理解极难题查看答案及解析