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题型:阅读理解-单选 难度:0.65 引用次数:121 题号:13670165

A Leg Walking Right

Here are some signs +-x..., the signs are very different. They mean very different things. When you see them, you know what to do. This sign + means that you will add some numerals. This sign-means that you will take one numeral away from another. You will subtract (减去). What will you do when you see x and...?

Our signs are easy to read. They are easy signs to remember. Look at these two signs…The ancient Egyptians used these signs. A picture of a leg walking to the left told them to add some numerals. A picture of a leg walking to the right told them to subtract.

In the 1500s people used this printed (印刷的) sign & to add numerals. After a while, the sign began to look like this... Later, the sign became +.

How much is 2...2?

1. What do you do when you see this sign +?
A.Walk away.B.Write a numeral.C.Read a sign.D.Add.
2. The story says, “Our signs are easy to read. They are easy signs to remember”. The word “they” means ________.
A.numeralsB.subtractC.signsD.add
3. Which of the following does this story lead to believe?
A.Egyptians could not add numerals together.B.All Egyptians had two left legs.
C.Our signs are not hard to understand.D.How the sign + forms.
4. What did the sign to add numerals begin to look like (which sentence is exactly like the one in your book)?
A.After a while, the sign began to look like this...
B.After a while, the sign began to look like this +.
C.After a while, the sign began to look like this &.
D.After a while, the sign began to look like this-.
5. The main idea of the whole story is that ________.
A.the signs for adding and subtracting have changedB.people could not write in the 1500s
C.the old signs were good for Egyptians but not for usD.how sign became +
20-21七年级下·江苏镇江·单元测试 查看更多[2]

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