2.一个等腰三角形的一条边长是8 cm，另一条边长是6 cm，这个等腰三角形的周长是多少厘米？

2. 22 cm 或 20 cm。

一、根据句子意思,从括号里选择合适的单词填空。
1. Look! The boy is (sing/singing).
2. Let's (pick/picks) some apples on the school farm.
3. —Can I (try on/look at) this jacket?
—Sure. Here you are.
4. It's time (for/to) a maths class. It is fun.
5. —What (time/clock) is it?
—It's 8:10 a. m.

1. singing 2. pick 3. try on 4. for 5. time

二、新疆维吾尔自治区吐鲁番市享有“中国葡萄之乡”的美誉。阅读葡萄树的自述,选择正确答案。
I am a grape tree. I grow in a garden in Turpan. I need air,water and sun. They help me grow.
My family help me too. They plant me and water me.
In spring, I have new leaves and small flowers. In autumn(秋天),I give sweet grapes to my family.
We are happy together!
()1. The text(文章) is about .
A. an apple tree
B. an orange tree
C. a grape tree

()2. In spring,the flowers on the tree are .
A. big
B. small
C. orange
()3. The grape tree needs to grow.
A. new leaves
B. sun,water and air
C. beautiful flowers
()4. What can the grape tree give to the family?
A. Nice grapes.
B. Sweet apples.
C. Orange oranges.

(1)C (2)B (3)B (4)A