The intelligence of the dog is among the highest of all the animals, maybe higher than we give him credit for. Although his brain is only half as large as ours, he is certainly the most intelligent of domestic animals.

A scientist in Brazil has proven dogs can count. He used a technique which also proved that 5 month old infants can count:

"He placed treats in a bowl, hid it with a screen and let the animals watch as he removed or added some. The dogs studied the contents longer when the screen was taken away if a trick had been played leaving more or less treats than expected .He tasted 11 mongrels（雜種狗）and found they paid little attention when one plus one resulted in two treats. But they looked more closely when one plus one left three."

Memory is an important component of intelligence. The dog's memory for scents is extraordinary. His visual memory is only fair, but his memory for sounds is very good, since he can remember and identify familiar voices even after an absence of many years .While he builds up a large store of identifiable sounds without the slightest effort, remembering different words requires more concentration.

The dog's capacity for learning is more a matter of memory than of true understanding. He will remember the sequence of cause and effect in his actions, but he is unable to draw broad conclusions from his experience. The greater the variety of experiences and contact with others they have, the quicker they learn, and the more they retain.

Dogs are bound by nature to remain intellectually inferior to（劣于）man, but we owe them a chance to develop their native intelligence by training, teaching, and working with them as much and as often as we can.

1．This text focuses on dog's________

       A．a(chǎn)ppearances and behaviors                  B．intelligence and memory

       C．breeds and reactions                           D．emotions and attitudes

2．What does the experiment by the Brazilian scientist show?

       A．Dogs remain intellectually inferior to man.

       B．Dogs' brain is only half as large as human beings'.

       C．Dogs know the numbers if their attention is drawn.

       D．Dogs have the same intelligence as 5-month-old infants.

3．How does the dog recognize the owner after he has been away for quite a long time?

       A．It has memory for scents and voice

       B．It has true understanding of its owner

       C．It has extraordinary visual memory

       D．It often misses its owner and remembers him

4．This text is most probably______.

       A．a(chǎn) book review        B．a(chǎn) travel journal       C．a(chǎn) research report     D．a(chǎn)n animal test

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源： 題型：

對(duì)標(biāo)有題號(hào)的每一行做出判斷：如有錯(cuò)誤（每行只有一個(gè)錯(cuò)誤），則按下列情況改正：

該行多一個(gè)詞：把多余的詞用斜線（\）劃掉，在該行右邊橫線上寫(xiě)出該詞，并也用斜線劃掉。 

該行缺一個(gè)詞：在缺詞處加一個(gè)漏字符號(hào)（∧），在該行右邊橫線上寫(xiě)出該加的詞。

該行錯(cuò)一個(gè)詞：在錯(cuò)的詞下劃一橫線，在該行右邊橫線上寫(xiě)出改正后的詞。

  Late in April, a photo show was held in our school．

  It lasted a week and was great success! All the photos were taken               1．　     

by the students themselves．They were most color photos, but                      2．       

some were black-and –white ones , presented our school life, the beauty          3．      

of nature, festival activities and so on．All the work of art were                   4．       

at show in the reading-room on the second floor．Every day a large                5．       

number of students went to enjoy them, but they were surprised to                 6．        

find the photos were such wonderful that some teachers also were                  7．       

present．

Those whose photos were chosen the best are given different prizes．            8．       

In the short, this photo show really made our life more colorful．　                9．       

We hope we will have much more activities like this in our school．                      10．        

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

The art of living is to know when to hold fast and when to let go. When know that this is1  , but all too often we recognize this truth  2  in our backward glance when we remember what it was and then suddenly  3  that it is no more.

A recent  4  re-taught me this truth. I was hospitalized  5  a serious heart attack and had been in intensive  6  for several days. It was not a pleasant place.

One morning, I had to have some additional  7  ，so I had to be wheeled across the count yard on a gurney（n.輪床）.

         8  we got out from our unit, the sunlight hit me. Just the  9  of the sun. And yet how beautiful it was---how warming, how sparking, how brilliant! I  10  around to see whether anyone else loved the sun's golden glow, but everyone was  11 ,most with eyes fixed on the ground. At that moment, I came to realize  12  gifts are precious----but we are too  13  about them.

     Hold fast to life, but not so fast, or you cannot  14  .This is the second side of life's  15  , the opposite pole of its paradox（悖論）：we must   16  our losses, and learn how to let go.

       This is not an easy  17  to learn, especially when we are young and think that the world is ours to command, and that  18  we desire with the full force of our passionate being, can, and, will, be ours. But then life  19  , keeping us faced with realities, and  20  but surely this truth dawns upon us.

1．A．easy                    B．clear                   C．true                   D．good

2．A．only                    B．a(chǎn)lso                   C．well                   D．even

3．A．notice                  B．realize                C．worry                D．concern

4．A．report                  B．story                 C．a(chǎn)ccident             D．experience

5．A．during                  B．since                 C．a(chǎn)fter                  D．until

6．A．care                    B．charge               C．control              D．need

7．A．doctors               B．medicine            C．instructions        D．tests

8．A．Before                 B．Till                    C．As                     D．While

9．A．warmth               B．light                   C．colors                D．image

10．A．looked               B．turned                C．walked              D．ran

11．A．watching            B．hurrying             C．working             D．sitting

12．A．disease's            B．a(chǎn)rt's                   C．health's              D．life's

13．A．honest               B．curious              C．careless             D．a(chǎn)nxious

14．A．hold on              B．take over            C．give in               D．let go

15．A．coin                  B．note                   C．bill                    D．check

16．A．a(chǎn)ccept               B．a(chǎn)dmire               C．remember          D．forgive

17．A．skill                   B．failure                C．lesson                D．task

18．A．whatever           B．whichever          C．however            D．whoever

19．A．comes up           B．goes off             C．dies away          D．moves along

20．A．quickly              B．firmly                C．slowly               D．suddenly

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：

The residents approve of the measure _______ so far in our city, _______ to bring a sharp rise in oil prices.

A．having been taken; intended                      B．to be taken; intending 

C．taken; to intend                         D．taken; intended

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：

--Why are you making so much noise?

--I just can’t help _______．

A．so          B．that         C．this         D．it

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：

The manager finished the whole day’s work and stood up, _____ himself．

A．stretching             B．stretched           C．stretch              D．to stretch

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：

---What's happened to Mr. Jones?

---I'm not quite sure. He_____ around here for a long time.

A．hasn't seen         B．didn't see           C．wasn't seen          D．hasn't been seen

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

As the sound of footsteps behind her grew louder, she quickened her pace. She didn’t want to turn around as the memory of that morning’s newspaper headline made her afraid of what she would see : “City Killer Claims Fourth Victim.”

“Why did I stop for a few drinks in the bar after work?” she thought to herself. Now it was dark and the streets deserted. She was alone and a sitting duck.

She felt as if she was walking in the rain. Her clothes were damp from nervous sweat and as each short hot breath hit the night air, it turned to steam, coating her glasses in a thin film so all she saw seemed covered in fog.

The footsteps were closer now She needed to get off this street Her eyes began a useless search for an open store or lighted window Passing a small lane she looked through，for a possible escape route. But the lane was a dead - end and she laughed to herself at the irony.

The sound of a car behind her turning onto the street interrupted her self - pity Escape was at hand. But as she was about to throw herself onto the road and shout for the calf to stop, the car’s headlights cast a shadow that paralyzed her with terror.

It was the footsteps’ owner. The figure was huge and in its raised arm it held what looked like a lead-pipe, no doubt the one that was about to claim victim number five.

The shadow dissolved as the car passed by and disappeared into the distance. She felt a hand on her shoulder. It was all happening as if in slow – motion. She was waiting for her life to flash before her eyes like all those novels said it would – but it didn’t. The only thing she thought of was her dear husband. She recalled phoning him from work that very afternoon and joking about, of all things, the city killer. It was a night full of ironies.

There was a voice talking to her now but she was lost in thoughts of her fate and didn’t respond. The hand then began turning her around. It was surprisingly gentle given what was about to come. She allowed it to guide her without resistance.

She looked up. She recognized the face, but she didn’t know from where. Its mouth was still talking to her but she couldn’t understand. Then she remembered. The face belonged to the foreign looking man who had served her at the bar. She looked down to his hand and saw in it not a lead – pipe but a rolled up copy of a work report she had been correcting in the bar as she drank.

His words suddenly started to register in her brain and she could her him. “Miss, Miss. Are you OK? You left this in the bar and it looked important so I thought I’d better give it to you.”

1．The woman was feeling nervous because        .

       A．she had left her report in the bar

       B．there was a killer in the city

       C．she was being followed by someone

       D．the streets were dark and empty

2．The underlined expression “a sitting duck” （paragraph 2） is closest in meaning to “        ”.

       A．a(chǎn)n easy target                                      B．a(chǎn) frightened person

       C．a(chǎn) foolish animal                                   D．a(chǎn) still position

3．What is the correct order of events that happened to the woman on the day of the story?

       a. She went for a drink in a bar.                  b. She corrected the report.

       c. She heard loud footsteps.                       d. She read the newspaper.

       e. She called her husband.                          f. She felt a hand on her shoulder.

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

4．Why did the woman laugh when she looked into the lane?

       A．She was excited because she thought it may be a way to escape.

       B．She felt bitter because she had no chance to escape.

       C．She was becoming more and more nervous.

       D．She realized that she was behaving foolishly.

5．Which of the following can be inferred from the passage?

       A．It was raining when she left the bar.

       B．The woman had felt nervous about the city killer for days.

       C．The temperature was very low that evening.

       D．The woman was behaving unreasonably.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：

I don't think he could have done so much homework last night,       ?

A．do I       B．could he          C．has he           D．did he

查看答案和解析>>

同步練習(xí)冊(cè)答案