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( )31. Long, long ago people didn’t know how to _______.
A. write B. write zero C. write numbers D. sixty-three
( )32. Long, long ago if they wrote two hundred and eight, people wrote _______.
A. 28 B. 2 8 C. 228 D. 208
( )33. Later _______ was used to mean space.
A. not any B. letter “O” C. zero D. a dot
( )34. People used circles ______.
A. to remember ways B. to remember numbers C. not to forget the space D. to mean nothing
( )35. The story tells us ______.
A. how zero came to be used B. how to write zero
C. what’s the use of zero D. that zero means a dot, a circle or space
查看习题详情和答案>>阅读下列短文,从每题所给的四个选项中选出最佳答案
Long, long ago there was no zero. To write the number sixty-three, people wrote 63. To write six hundred and three, people wrote 6 3. The space between six and three was there to mean“not any”tens. Sometimes people did not remember the space. It was hard to see and read.
Later people used a dot to hold the space. Six hundred and three looked like this 6.3. But the dot was hard to see. So people put a circle around it like this 6⊙3. Then people could see the dot. They remembered the space at last, only the circle around the dot was used. It was like a zero. This is one story of how the zero came to be used.
Now zero has many important uses. Zero tells how many. Can you tell some other ways of using zero?
1.Long, long ago people didn’t know how to ________.
[ ]
2.Long, long ago if they wrote two hundred and eight, people wrote________.
[ ]
3.Later ________ was used to mean space.
[ ]
4.People used circles ________.
[ ]
5.The story tells us ________.
[ ]
A.how Zero came to be used
B.how to write zero
C.what’s the use of zero
D.that zero means a dot, a circle or space
查看习题详情和答案>>Long, long ago there was no zero. To write the number sixty-three people wrote 63.To write six hundred and three, people wrote 63.The space between six and three was there to mean." not any "tens. Sometimes people did not remember the space. It was hard to see and read.
Later people used a dot to hold the space. Six hundred and three looked like this 6.3.But the dot was hard to see. So people put a circle around it like this 6⊙3.Then people could see the dot. They remembered the space. at last ,only the circle around the dot was used. It was like a zero. This is one story of how the zero came to be used.
Now zero has many important uses .Zero tells how many. Can you tell some other ways of using zero?
1.Long,long ago people didn`t know how to ____.
A. write B write zero C. write numbers D. sixty-three
2.Long,longago if they wrote two hundred-eight ,people wrote_____.
A.28 B.2 8 C.228 D.208
3.Later ______ was used to mean space.
A. "not any" B.letter"0" C. zero D. a dot
4.People used circles _____________.
A. to remember ways B. to remember numbers
C. not to forget the space D. to mean nothing
5.The story tells us _____.
A. how zero came to be used
B. how to write zero
C. what`s the use of zero
D. that zero means a dot, a circle or space
查看习题详情和答案>>and three, people wrote 63. The space between six and three was there to mean." not any"tens. Sometimes
people did not remember the space. It was hard to see and read.
Later people used a dot to hold the space. Six hundred and three looked like this 6.3. But the dot was hard
to see. So people put a circle around it like this 6⊙3.Then people could see the dot. They remembered the space. at last, only the circle around the dot was used. It was like a zero. This is one story of how the zero came to
be used.
Now zero has many important uses. Zero tells how many. Can you tell some other ways of using zero?
B. write zero
C. write numbers
D. sixty-three
B. 28
C. 228
D. 208
B. letter "0"
C. zero
D. a dot
B. to remember numbers
C. not to forget the space
D. to mean nothing
B. how to write zero
C. what`s the use of zero
D. that zero means a dot, a circle or space
阅读理解
Long, long ago there was no zero. To write the number sixty-three people wrote 63. To write six hundred and three, people wrote 6 3. The space between six and three was there to mean “not any” tens. Sometimes people did not remember the space. It was hard to see and read.
Later people used a dot to hold the space. Six hundred and three looked like this 6.3. But the dot was hard to see. So people put a circle around it like this 6⊙3. Then people could see the dot. They remembered the space. At last, only the circle around the dot was used. It was like a zero. This is one story of how the zero came to be used.
Now zero has many important uses. Zero tells how many. Can you tell some other ways of using zero?
(1) Long, long ago people didn't know how to________.
[ ]
(2) Long, long ago if they wrote two hundred and eight, people wrote ________.
[ ]
(3) Later ________ was used to mean space.
[ ]
(4) People used circles_______.
[ ]
A. to remember ways
B. to remember numbers
C. not to forget the space
D. to mean nothing
(5) The story tells us ________.
[ ]
A. how zero came to be used
B. how to write zero
C. what the use of zero is
D. that zero means a dot, a circle or space
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