国开《 综合英语(3)》Unit4 单元练习

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Vacabulary

\n

Choose the best answer for each of the following items.

1.She developed a _______ for the natural world, for birds, for mountains, for rivers.

pasture

passage

patience

passion

2.It had to be done, _______ I wouldn’t have done it.

however

otherwise

unless

or else

3.The Everglades National Park _______ 9,000 square miles.

takes on

turn up

takes up

turn down

4.Her parents _______ when she was five, and since then, she’s been living with her grandparents.

operated

separated

neglected

celebrated

5.The book also _______ the beginning of Douglas’s fight to save the Everglades.

made

moved

marked

minded

6.It is better to _______ schoolchildren by feeding them good food.

notice

neglect

witness

nourish

7.The meeting was _______ to discuss the issue of how to protect the natural environment in the area.

shouted

called

cared

taken

8.Today, thanks largely _______ Douglas, that part of the Everglades remains unchanged.

by

to

with

for

9.Bad housing and poverty _______ up the breakdown of the family.

speed

speak

break

wake

10.Unfortunately, all the sewage _______ off into the river.

draws

drives

drops

drains

11.She _______ waited until they had finished, and then, she began to speak calmly but firmly.

peculiarly

pathetically

perfectly

patiently

12.She spoke of how the Everglades were a natural wonder that needed to be _______ .

programmed

produced

preserved

practiced

13.The manager asked her to fill _______ a workmate who was ill on Thursday.

out in

in for

up with

in with

14.This book made people _______ that the area was not a dismal land, but home to many beautiful animals and plants.

reserve

convince

industrialize

realize

15.She is _______ deaf, but if you speak a little louder, it should be OK for her.

slightly

severely

smartly

politely

16.At that time, the public was not yet aware _______ the effects that people have on their environment.

in

at

of

on

17.She is building up an _______ international reputation, and many diplomats would like to work with her.

impressive

impractical

inaccurate

inappropriate

18.When she stood up to speak, her red straw fighting hat firmly _______ place, the crowd began to boo her.

at

with

in

on

19.Born in Minnesota, she was _______ in Massachusetts by her parents.

praised

risen

brought

raised

20.It is such a wonderful natural environment to be _______ , not destroyed.

pretended

preserved

produced

processed

Grammar

\n

Choose the best answer for each of the following items.

21.The meeting _______ to discuss the fate of a part of the Everglades in south Florida in 1920. 

 has called  

called    

was called  

had called 

22._______ a divorce, she moved to Miami, where her father had started the newspaper.  

 Having sped 

 To speed

Speeding

Being sped  

23.When my brother and I were growing up, we _______ summers with my grandparents in Brazil.  

are used to spending     

would use to spend   

used to spend

got used to spend  

24.She _______ for twenty months until they finally ________ to see her. 

patiently waited …came

 patiently waited … had come

 had patiently waited … came

had patiently waited … had come  

25.Thanks largely to Douglas, that part of the Everglades remains _______ . 

 unchanging 

unchanged   

to be changed

to change  

26.In 1913, a year after _______ from WellesleyCollege, she married Kenneth Douglas.  

graduating  

graduated   

being graduated 

having graduated  

27.As she _______ so many times before, she spoke calmly of how the mountains needed to be preserved.  

was doing

 does 

have done

 had done  

28._______ in Minnesota, Douglas _________ in Massachusetts by her mother and grandparents.  

To be born … was raised 

Born … is raised  

Being born … have raised 

Born… was raised

29.It had to be done, otherwise I _______ it.  

would have done  

hadn’t done   

 wouldn’t have done

had done  

30.On the way back, it was snowing so heavily that I couldn’t see anything ahead of me except the footprints I _______ on my way to the river.  

 have made 

 make  

 had made   

was making  

Dialogue

\n

Choose the best answer for each of the following items.

31.– Have you ever given any thought to moving south, to one of those retirement communities?

  –                             

These days people tend to stay at home for a lot of their spare time.

I’m not interested in picking up and moving away. 

As long as I live near town, I don’t want to trouble anybody. 

32.– Congratulations! I just heard you got the highest grade on the English exam.  

  –                             

No, no. That’s nothing.

Yes, everybody did very well in the final exam. 

Thank you very much. I’m very glad I did it. 

33.– We used to sit around the fireplace, the four of us. It was warm and cozy inside.

  –                             

 I hate to get out of bed in summer.

 But outside the snow would be falling.

A few years ago, I went back to Brazil.

34.– It’s so quiet around here without the kids. 

  –                             

Yeah, indeed. I was just thinking back to when I was a kid and still living at home.

After dinner, we’d play card games, right there at the dining room table.

Well, I’m not saying anything is wrong with playing games with the kids.

35.– In fact, I can’t even remember seeing him smile.   

  –                             

Really? You can tell. It’s just that I’m not comfortable doing it.

I mean, you are always so good with the kids, and the grandchildren. 

No, but it’s true. I don’t remember once that he played a game with us.  

Reading

\n

Read the following passages and choose the best answer for each of the following questions.

Passage 3

\n

  The modern age is an age of electricity. People are so used to electric lights, radios, televisions, and telephones that it is hard to imagine what life would be like without them. When there is a power failure, people grope about in flickering candlelight, cars hesitate in the streets because there are no traffic lights to guide them, and food spoils in silent refrigerators.

\n

  Yet people began to understand how electricity works only a little more than two centuries ago. Nature has apparently been experimenting in this field for millions of years. Scientists are discovering more and more that the living world may hold many interesting secrets of electricity that could benefit humanity.

\n

  All living cells send out tiny pulses of electricity. As the heart beats, it sends out pulses that can be measured and recorded on the surface of the body. When the pulses are recorded, they form an electrocardiogram, which a doctor can study to determine how well the heart is working. The brain, too, sends out brain waves of electricity, which can be recorded in an electroencephalogram. The electric currents generated by most living cells are extremely small-often so small that sensitive instruments are needed to record them. But in some animals, certain muscled cells have become so specialized as electrical generators that they do not work as muscle cells at all. When large numbers of these cells are linked together, the effect can be astonishing.

\n

  The electric eel is an amazing living storage battery. It can send a jolt of as much as eight hundred volts of electricity through the water in which it lives. (An electric house current is only one hundred twenty volts.) As many as four-fifths of all the cells in the electric eel\’s body are specialized for generating electricity, and the strength of the shock it can deliver corresponds roughly to the length of its body.

\n

 

36.What is the main idea of the passage? _________.

Electric eels are potentially dangerous

Biology and electricity appear to be closely related

The modern age is an age of electricity.

Scientists still have much to discover about electricity 

37.The author mentions all of the following as results of a blackout EXCEPT _________. 

refrigerated food item may go bad 

traffic lights do not work

people must rely on candlelights

elevators and escalators do not function 

38.Why does the author mention electric eels? _________.

To warn the reader to stay away from them

To compare their voltage to that used in houses 

To give an example of a living being generating great electricity

To describe a new source of electrical power

39.How many volts of electricity can an electric eel emit? _________.

 1,000

800

200

120

40.It can be inferred from the passage that the longer an eel is the _________.

more beneficial it will be to science

more powerful will be its electrical charge 

easier it will be to find

tougher it will be to eat

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