Unit 1 There are only nineteen crayons._小学英语外研版（三起）五年级上册习题/试题/练习题/测试题及答案

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根据对话内容判断正误，对的用T，错的用F。
Mary: Hi, Sam. How many crayons do you have?
Sam: I have twenty crayons.
Mary: Are you sure?
Sam: Of course.
Mary: But there are only nineteen crayons.
Sam: Oh, did I lose one?
Mary: No, you didn’t. There is one on the floor.
Sam: Yeah, I’m so happy.
Mary: Now there are twenty crayons.
1．Sam didn’t lose one crayons. ( )
2．Sam has nineteen crayons. ( )
3．Mary found the crayon on the floor. ( )
4．Sam felt happy that the crayon was found. ( )
5．Sam has twenty crayons at last. ( )

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阅读对话，选择正确的答案。
Lingling: Amy, how many apples do we have?
Amy:We have twenty-three apples. But there are twenty-five children in our class.
Lingling: We need two more.
Amy: How many boxes of milk?
Lingling: There are twenty-five boxes of milk. There are only twelve bananas. We need more bananas.
Amy: OK. Let’s go to the supermarket.
1．How many apples do they have? ( )

A．Twenty-five

B．Twelve

C．Twenty-three.

2．Are there enough boxes of milk? ( )

A．Yes, there are.

B．No, there aren’t.

C．Too many.

3．How many bananas? ( )

A．Twenty.

B．Twelve.

C．Twenty-five.

4．Where are they going? ( )

A．School.

B．Home.

C．The supermarket.

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难度系数：一般0.65

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罗马数字

大约在两千五百年前，罗马人还处在文化发展的初期，当时他们用手指作为计算工具。表示一、二、三、四个物体，就分别伸出一、二、三、四根手指；表示五个物体就伸出一只手；表示十个物体就伸出两只手。这种习惯人类一直沿用到今天。人们在交谈中，往往就是运用这样的手势来表示数字的。

当时，罗马人为了记录这些数字，便在羊皮上画出I、IⅡ、Ⅲ来代替手指；要表示一只手时，就画成“V”形，表示大拇指与食指张开的形状；要表示两只手时，就画成“VV”形，后来变成了一只手向上、一只手向下的“X”，这就是罗马数字的雏形。

后来为了表示较大的数字，罗马人用符号C表示一百。C是拉丁文“centum”的首字母，centum就是一百的意思（英文“century”就是由此而来的）。用符号M表示一千。M是拉丁文“mille”的首字母，mille就是一千的意思。取字母C的一半，成为符号L，表示五十。用字母D表示五百。若在一个数的上面画一条横线，这个数就扩大一千倍。这样，罗马数字就有下面七个基本符号：I（1）、V（5）、X（10）、L（50）、C（100）、D（500）、M（1，000）。罗马数字与十进位数字不同，它没有表示零的数字，当时的人们用空格表示0。

因为罗马数字书写繁难，所以后人很少使用。但是，21世纪的钟表表面仍有使用罗马数字的。此外，在书稿的章节标题中也有采用罗马数字的。

同学们，读了这篇文章，你能把英文数字1—12和罗马数字1~12分别写出来吗？
1．英文数字1~12：
____________________________________________________________________________
2．罗马数字1~12：
____________________________________________________________________________

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阅读理解
My name is Mary. I am eleven.
Ted is my brother.
He is thirteen. We are in the same school.
My mother is a teacher.
She is a teacher in our school.
My father is a teacher, too.
He is a Chinese teacher in a college.
I have a cat. Its name is Miaomiao.
It is white. It is a nice cat.
We are good friends.
(   )1.I am 12.
(   )2.My brother is 14.
(   )3.Ted and I are in the same school.
(   )4.My parents are teachers.
(   )5.I have a cat.

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