19、【
单选题
】
Which statement best expresses the main idea of this article?
[1分]
、
People should eat any food to keep themselves healthy and strong.
、
People should eat natural foods to keep themselves healthy and strong.
、
People should eat fiber foods to keep themselves healthy and strong.
、
People should eat vegetables to keep themselves healthy and strong.
答案：
20、【
单选题
】
Natural foods means ____.
[1分]
、
foods good for health
、
foods not good for health
、
foods such as vegetables, fruit and grain from rich organic matters soil
、
crops from rich organic matters soil and meats of animals from healthy pastures
答案：
21、【
单选题
】
There are no vitamins, no minerals and no fibers in ____.
[1分]
、
natural foods
、
animal meats
、
sugar
、
fruit
答案：
22、【
单选题
】
“Yet all it does is provide us with energy, in the form of calories.” It means ____.
[1分]
、
processed food provides us with energy
、
natural food furnishes us with vitamins and minerals
、
sugar gives us enough energy in the form of calories
、
fiber helps us to digest food
答案：
23、【
单选题
】
In the first paragraph, the author thinks an electronic computer can ____.
[1分]
、
copy down all the facts
、
remember all the facts
、
organize the facts and everything
、
copy down, remember and organize all the facts
答案：
24、【
单选题
】
The computer is a high powered “memory” machine, which ____.
[1分]
、
has all the ready answers — or almost all to any questions
、
can remember everything
、
can store everything and work for you
、
has all the answers — or almost to all the information that has been stored
答案：
25、【
单选题
】
“Thinking” machines suggest that ____.
[1分]
、
they can “read” hand printed letters etc
、
they really can think and do many other jobs
、
they even design other computers
、
they can't think, but can do something under human control
答案：
26、【
单选题
】
Can computers do whatever they want to do?Why?
[1分]
、
Yes, because some computers can work 500,000 times faster than any person can.
、
No, because they normally have a few hundred thousand parts.
、
No, because human brains are at least 10000 times more complex than any computers.
、
No, because how a computer works is decided by human.
答案：
27、【
单选题
】
Webster first tried to earn his living in the field of ____.
[1分]
、
education
、
journalism
、
law
、
medicine
答案：
28、【
单选题
】
Webster earned most of his money from the sale of his ____.
[1分]
、
dictionary of 1828
、
spelling book
、
grammar
、
reader
答案：
29、【
单选题
】
According to the article, Webster ____.
[1分]
、
had created American English and its usages
、
had discovered American English and improved it
、
had tried his best and left a milestone on the language of his country
、
had left a language which was not used in England.
答案：
30、【
单选题
】
“…the United States seemed to have plenty of land to go around ”
means that ____.
[1分]
、
the United States seemed to have vast land for its people to walk around
、
the United States seemed to have enough land for sharing with everyone
、
the United States could provide whatever its inhabitents' needs
、
the United States was not able to allow its people to do what they wanted to
答案：
31、【
单选题
】
The sentence of “Plenty of rivers to dam and plenty of rural valleys left over” suggests that ____.
[1分]
、
the United States had a lot of rivers to dam and many rural valleys,too
、
the rivers could be damed later
、
rural valleys would be considered in the future
、
people needn't think of the rivers and valleys
答案：
32、【
单选题
】
“Now the land has been spoken for, …” tells us that ____.
[1分]
、
today, land has shown its values
、
now, people have said something about land
、
nowadays, land has been claimed by human beings
、
recently, people spoke for the land
答案：
33、【
单选题
】
The phrase of “swallows up” informed us that ____.
[1分]
、
these usages of land have good results
、
these lands must be used totally
、
the precious space was taken completely
、
the precious space were eaten up
答案：
34、【
单选题
】
The word “sprawl” indicates that ____.
[1分]
、
cities are developing very fast to meet the people's demands
、
urban areas are diminishing smoothly
、
urban areas are enlarging steadily in a planned way
、
cities are spreading out without any plans
答案：
35、【
单选题
】
So frightened ____ in darkness that she did not dare to move an inch.
[1分]
、
was the girl
、
the girl was
、
such a girl was
、
that the girl was
答案：
36、【
单选题
】
The students ____ the exercises, the teacher went on to explain the text.
[1分]
、
doing
、
did
、
having done
、
to do
答案：
37、【
单选题
】
They talked about things and persons ____ they remembered in the school.
[1分]
、
who
、
which
、
that
、
what
答案：
38、【
单选题
】
Such an obvious error ____ this would be avoided, if you were more careful.
[1分]
答案：
39、【
单选题
】
They remained full of hope and determination ____ their repeated failures.
[1分]
、
instead of
、
in search of
、
because of
、
in spite of
答案：
40、【
单选题
】
The car ____ seventy miles per hour until it reaches the riverside at about ten o'clock tonight.
[1分]
、
goes
、
will go
、
went
、
will be going
答案：
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