Scientists think that most animals can’t see colous. The world is black and white to them. To find out if the dogs could see colours, scientists gave dogs food evey time they played a certain piece of music. The dog got ready to eat only when they heard this piece of music. They did not get ready to eat when they heard other piece of music.

Then the scientists gave the dogs food every time they showed them a certain colour. The dog got ready to eat when they saw this colour .The colours were all the same to them.

Colours are not all the same to the monkeys, however, for example, if we put food in a red box and do this every day, a monkey will always go to the red box to get the food. If we then put food in a blue box, the monkey won’t go to it.

(　 )16.All colours are the same to_______.

　　　 A.all animals　 B.scientists　 C.monkeys D.dogs

(　 )17.Monkeys know that red and blue are _______.

A.not the same　 B.the same C.colours　 D.food

(　 )18.The scientists give the dogs food every time they______.

A.saw the colour red　　　 B.went to a box of food

C.saw the colour blue　　　 D.played certain music

(　 )19.Dogs are different from monkeys because_______.

A.dogs can’t see any colours and monkeys can

B.dogs can’t see more colours than monkeys

C.monkeys can’t see any colours and dogs can

D.monkeys can’t see red and blue

(　 )20.Some ______ wants to find out if dogs could see colours.

A.animals　 B.doctors　 C.scientists　 D.monkeys

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中英語 來源： 題型：054

完形填空：

　Isaac Newton was 　1　  great English scientist, 　2　　　when he was thinking hard about his work, he often forgot 　3　　　 things.

　One morning Newton got up early. He began 　4　　 　at once. He worked on a very difficult problem. He was still thinking it hard when it was time 　5　　　breakfast, Mary brought a pan (平底鍋) of water and an egg to his room. But Newton wanted to stay by 　6　　 　and said to Mary. "You can put the egg on the table. I'll boil (煮) it myself. Mary put the egg beside Newton's watch on the table and said, "You must boil the egg 　7　　 　 four minutes and then it will be ready." Then she went out of the room.

　But when she went into the room again an hour 　8　　　, she saw him 　9　　 　by the pan, and having the egg in his hand. He had put the watch in the pan and was boiling it! But he did not know 　10　　　he was doing.

根據(jù)短文內(nèi)容，從下面A, B, C, D,四個(gè)選項(xiàng)中選一個(gè)最佳答案．

　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　

1． A． a 

　　

B． an

　　

C． x 

　　

D． the

　　

[　　]

　　

2． A． so 

　　

B． but

　　

C． and

　　

D． or

　　

[　　]

　　

3． A． another 

　　

B． others

　　

C． other 

　　

D． the other

　　

[　　]

　　

4． A． work 

　　

B． works

　　

C． worked 

　　

D． to work

　　

[　　]

　　

5． A． for

　　

B． to

　　

C． at

　　

D． with

　　

[　　]

　　

6． A． he

　　

B． him

　　

C． his

　　

D． himself

　　

[　　]

　　

7．A．to

　　

B．on

　　

C．for

　　

D．in

　　

[　　]

　　

8．A．after

　　

B．late

　　

C．before

　　

D．later

　　

[　　]

　　

9．A．standing

　　

B．stands

　　

C．stood

　　

D．tostand

　　

[　　]

　　

10．A．that

B．What

C．When

D．Which

[　　]

查看答案和解析>>

科目：初中英語 來源： 題型：054

完形填空：閱讀下列短文，從所給的四個(gè)選項(xiàng)中，選出最佳答案

　Now machines 　1　 all over the world. Why are machines so important and necessary 　2 　us? Because they can help us do things faster and 　3 　.

　A washing machine helps us to wash clothes. A printing machine helps to print a lot of books, newspapers, magazines and many 　4 　things 　5 　. Bicycles, cars, trains and planes are all machines. They help us to travel faster than 　6 　foot.

　The computer is a wonderful machine. It 　7 　not long ago. It not only 　8 　but also computes numbers millions of times as 　9 　as a scientist does.

　Let's study hard and try to use all kinds of machines 　10 　China into a modern country.

　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　

1． A．is used wide

　　

B．are widely used

　　

C．is widely used

　　

D．are widly used

　　

[　　]

　　

2． A．for

B．of

C．to

D．with

[　　]

3． A．good

B．best

C．well

D．better

[　　]

4． A．another

B．other

C．the other

D．others

[　　]

5． A．quick

B．slowly

C．quickly

D．faster

[　　]

6． A．with

B．in

C．by

D．on

[　　]

7． A．invented

　　

B．was invented

　　

C．is invented

　　

D．invents

　　

[　　]

　　

8． A．store information

　　

B．stores informations

　　

C．stores information

　　

D．store informations

　　

[　　]

　　

9． 　　 A．fast

B．faster

C．fastest

D．quick

[　　]

10． 　　 A．to building

B．to be built

C．to build

D．build

[　　]

查看答案和解析>>

科目：初中英語 來源：英語教研室 題型：054

A:Excuse me. What's your sister?

B: She's a   1  . She works in a hospital. She looks after the patients   2   have got "SARS".

A:"SARS"? It's terrible and painful. I'm frightened.

B:I don't think so. If you pay   3   more attention to it, there will be nothing, I think.

A:Sure. Does your sister tell you   4  to prevent "SARS"?

1. (　)

A. doctor　　　　　　　　　　　　　　　　  B. nurse

C. teacher　　　　　　　　　　　　　　　　 D. scientist

2. (　)

A. who　　　　　　　　　　　　　　　　　　 B. whom

C. whose　　　　　　　　　　　　　　　　  D. which

3. (　)

A. more　　　　　　　　　　　　　　　　    B. too

C. many　　　　　　　　　　　　　　　　   D. much

4. (　)

A. when　　　　　　　　　　　　　　　　   B. what

C. how　　　　　　　　　　　　　　　　　　 D. why

 

查看答案和解析>>

科目：初中英語 來源： 題型：

John Smith is my 1 friend. He is a famous professor(教授).He is clever and 2 .He invited a robot, which could do a lot of things for him, so he won this year’s Best Scientist in California.

Last Sunday, he 3 Washington to get the prize. Before he 　4 ,a lot of reporters had already been at the airport. They waited and waited, after a long time, but my friend John didn’t appear until the plane left. The reporters were very 5　 .They shouted, ”Professor John has 6

The plane. Ha, Ha! What would he say?”

In the plane, there was a man came 7 the toilet 8　 a wig (假發(fā)) on his head. He was short and 　9 fat. He was wearing a pair of glasses and a suit with jeans. Ha, he was just Professor Smith. He disguised(喬裝打扮) 10　 because he didn’t want to be seen by the reporters.

( ) 1.A. closed 　　　　　　 B. closing　 　　 C. close　 　　　　 　 D. near

( ) 2.A. work hard 　　　 B. hard-work　 C. working-hard　 D. hard-work

( ) 3.A. flew to 　　　　　 B. flies to　　　　　C. flied to 　　 　　 D. by plane to

( ) 4.A. arrived at 　　　 B. reached　　　　 C. got　　　　　　　　　 D. arrived

( ) 5.A. exciting 　　　 　 B. excited　 　　 C. worried　 　　 　　 D. worrying

( ) 6.A.left　 　　　　　　　　 B. caught　　　　　 C. missed　 　　 　　 D. lost

( ) 7.A. out of　　　　　　　 B. into　 　　　　 　 C. in　　　　　　　　　　D. outside

( ) 8.A. in 　　　　　　　　　 B. has 　　　　　　 C. wears　 　　　 　 D. with

( ) 9.A.a few 　　　　　　 B. little 　　　　　　 C. a little　　　　　　 D. a lot of

( ) 10.A. him 　　　　　　 B. himself　 　　 C. his　 　　　　　　　 D. he

查看答案和解析>>

科目：初中英語 來源： 題型：閱讀理解

　　　 How do you remember the way to your house? Where do dreams come from? It is your brain(大腦) that does these things. A British scientist showed that “sleep can improve one’s memory.” It’s not a dream for students to study when they sleep. In fact, your brains is working day and night. If you learn words before bed, a certain part of the brain may help you to remember the words while you sleep. What’s more, another scientist in the USA found that there was a “talent button(天才按鈕)” in the human brain. It might make a person more talented.

　　　 There are more interesting things about the brain. Your brain uses less energy than a fridge light. Just two bananas can give the brain enough energy to work for a whole day. According to some scientists, yawning(打哈欠) keeps our brains “cool”, which makes us think quicker.

　　　 Here are some pieces of advice to keep a good brain:

l　　　　 Eat healthy food.

l　　　　 Get a lot of playtime or exercise.

l　　　　 Don’t drink or smoke.

l　　　　 Use your brain a lot.

(　 )51. A British scientist found out that ________ could improve our memories.

　　　 A. drink　　　　　　　　　　　 B. dreams　　　　　　　　　　 C. sleep　　　　　　　　 D. bananas

(　 )52. According to the passage, if we want to have a good brain, we should ________.

A. use our brains more　　　　　　　　　　　　　　　 　　 B. sleep fewer hours　　

C. work longer hours　　　　　　　　　　　　　　　　　　　 D. remember fewer things

(　 )53. Which of the following is TRUE according to the passage?

　　　 A. Our brains only work in the daytime.

　　　 B. Our brains need much energy every day.

　　　 C. Smoking can keep our brains healthy.

　　　 D. Getting exercise is good for our brains.

查看答案和解析>>

同步練習(xí)冊答案