问题描述：
1完形填空
Terry called the doctor in the middle of the night.
"Come quickly,Doctor.You know my wife sleeps w___ her mouth open.Well,a mouse has run down inside her!"
"I will be with you i__ about 10 minutes,"answered the doctor."Before I arrived,try to put a piece of cheese in front of her mouth.This may b___ the mouse out."
When the doctor arrived,Mr Terry was not holding a piece of cheese.He was holding a fish in front of his wife's m___.
"What are you doing?" asked the doctor."Mice don"t l___ fish."
"I know,"said Mr Terry,"but we have to get the cat out first."
2.下列叙述中,正确的是（ ）｛写出为什么其他的选项错的原因｝
A 半径为2厘米的圆的周长和面积相等
B 同一个圆中,圆心角是50度的扇形面积比圆心角是60度的扇形面积小
C 一个圆的直径减少2厘米,这个圆的半径也减少2厘米
D 圆心角不变,半径扩大2倍,则扇形面积也扩大2倍
3.大、小两个圆,大圆半径是小圆直径的5倍,大圆面积是小圆面积的__倍｛过程｝
4.一个圆形铁片,外圆直径是8厘米,内圆直径是6厘米,这个环形铁片的面积是__平方厘米.
Terry called the doctor in the middle of the night.
"Come quickly,Doctor.You know my wife sleeps w___ her mouth open.Well,a mouse has run down inside her!"
"I will be with you i__ about 10 minutes,"answered the doctor."Before I arrived,try to put a piece of cheese in front of her mouth.This may b___ the mouse out."
When the doctor arrived,Mr Terry was not holding a piece of cheese.He was holding a fish in front of his wife's m___.
"What are you doing?" asked the doctor."Mice don"t l___ fish."
"I know,"said Mr Terry,"but we have to get the cat out first."
2.下列叙述中,正确的是（ ）｛写出为什么其他的选项错的原因｝
A 半径为2厘米的圆的周长和面积相等
B 同一个圆中,圆心角是50度的扇形面积比圆心角是60度的扇形面积小
C 一个圆的直径减少2厘米,这个圆的半径也减少2厘米
D 圆心角不变,半径扩大2倍,则扇形面积也扩大2倍
3.大、小两个圆,大圆半径是小圆直径的5倍,大圆面积是小圆面积的__倍｛过程｝
4.一个圆形铁片,外圆直径是8厘米,内圆直径是6厘米,这个环形铁片的面积是__平方厘米.
问题解答：
我来补答展开全文阅读