一、选择合适的数填入圆圈内。
$\frac{1}{2}$，0.01，-2.3，-9.2，5.9，0，-0.85，100，-10，$\frac{5}{6}$

整数
正数
负数

整数：0，100，-10
正数：$\frac{1}{2}$，0.01，5.9，100，$\frac{5}{6}$
负数：-2.3，-9.2，-0.85，-10

二、解方程。
$36.2-3(x-1)=16.4$
$9x÷3=2.4$
$7x-8×1.4=0$
$4(0.5+x)=36$

解：
36.2 - 3(x - 1) = 16.4
3(x - 1) = 36.2 - 16.4
3(x - 1) = 19.8
x - 1 = 19.8 ÷ 3
x - 1 = 6.6
x = 6.6 + 1
x = 7.6
解：
9x ÷ 3 = 2.4
3x = 2.4
x = 2.4 ÷ 3
x = 0.8
解：
7x - 8×1.4 = 0
7x - 11.2 = 0
7x = 11.2
x = 11.2 ÷ 7
x = 1.6
解：
4(0.5 + x) = 36
0.5 + x = 36 ÷ 4
0.5 + x = 9
x = 9 - 0.5
x = 8.5

如图,大正方形的边长为6厘米,小正方形的边长为4厘米,求阴影部分的面积。

(答案在本书中找)
在横线上填入所缺单词，完成下列对话，每格限填一词。Complete the sentences.
A: What a sunny day! Look! The sun is .
B: It's not cold. It's not hot. It's today.
A: do we have for our picnic? Do you have any ?
B: Yes. Look! We have oranges, bananas and .
A: How about a ? I'm thirsty now.
B: There is cola, , and orange juice.
A: is my favourite drink. What is for our lunch?
B: Bread, and pizza.
A: Wonderful! I love the picnic.

6×4÷2=12（平方厘米）
答：阴影部分的面积是12平方厘米。
1. shining
2. cool
3. What
4. fruits
5. apples
6. drink
7. tea
8. milk
9. Cola
10. eggs