题目列表(包括答案和解析)
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阅读理解:阅读下列短文,从所给的四个选项中,选出最佳答案
Most people began to count in tens because they had ten fingers on their hands. But in some countries, people counted on one hand and used the three parts of each of their four fingers. So they counted in twelves, not in tens.
Perhaps because of this the Egyptians(埃及人) divided(分) the day into twelve hours, and later scientists divided the circle(圆) into twelve parts of 30°.
People also used the number twelve parts. The old British money was the same, where was twelve pence(便士) in a shilling(先令). But strangely there were twenty shillings in a pound(英镑). Today the British use a different system(体系), with a hundred pence in a pound.
Today many people in Europe still count eggs in twelves. They buy“a dozen(打开)”eggs in a shop, or they buy “half - a - dozen” eggs. They do not buy eggs in tens or fives.
(1) Some people counted things in groups of twelve because they .
[ ]
A.had ten fingers of their hands
B.had twelve fingers on their hands
C.counted on one hand which had four finger
D.counted on one hand and used the three parts on each of their four fingers.
(2) The Egyptians had hours a day.
[ ]
A.ten B.twelve
C.twenty D.twenty - four
(3) In the old British money there were pence in a pound.
[ ]
A.twelve
B.one hundred
C.one hundred and twenty
D.two hundred and forty
(4) There are in British money now.
[ ]
A.pounds, shillings and pence
B.pounds and shillings
C.shillings and pence
D.pounds and pence
(5) Many people in Europe don't buy eggs in tens or fives because .
[ ]
A.they are used to counting things in groups of twelve
B.eggs sold in fives or tens are much more expensive
C.they hate the number "five" and "ten"
D.they don't eat eggs very often
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阅读回答问题
People and animals have had a close relationship for thousands of years. There are lots of differences between them, but in some ways the similarities are more interesting. Like humans, dolphins are very clever animals. They have been trained by people to help underwater engineers, and there are also several examples of dolphins saving people's life.
Dolphins often swim in groups of hundreds in number. They communicate with each other using many sounds. They also play-swimming, diving, and jumping out of the water together.
They are very friendly and helpful to each other when in trouble, and take good care of a wounded one. Female dolphins help each other when they are giving birth to new babies. Young dolphins stay with their mothers for several years, and even when they are grown up, they sometimes return to their mothers in times of unhappiness.
1.What's the main idea of the first paragraph?
2.What's the main idea of the second paragraph?
3.What are the similarities (相似之处) between people and dolphins?
a.________________________
b.________________________
c.________________________
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