化简：cos(π3+α)+sin(π6+α)=______．

词汇：根据首字母或汉语提示完成下列各句。

1. — W_____ to our school!

    — Thank you !

2. — See you l _____ ! 

    — See you!

3. — Excuse me, what's this in E _____ ? 

    — It's a ruler.

4. Hello, my name is Jim. I have a big head and a w _____ mouth.

5. — What's blue and yellow? 

    —  It's g _____ .

6. Jane and Sally are b _____ from the USA.

7. My mother is thirty-six y old.

8. The dress isn't yours. I think it's _____ (她的) dress.

9. The new pen is Tom's. The old one is _____ (我的).

10. A cat has four _____ (脚).

11. Those _____ (男孩子们) are in the same class.

12.Yao Ming is _____ and  _____(又高又壮).

13. My _____ (最喜欢的) color is white.

14. Sorry. I don't _____ (认识) her.

根据首字母及汉语提示补全所缺单词。

1. S________ is the first day of the week.

2. After having two lessons, we have a b________.

3. Thanks for s________ me the wonderful stamp.

4. The wolf lives in the E________ forests.

5. His brother reads many books and ________ (杂志).

6. My mother likes music and she often goes to ________ (音乐会).

7. There is a cat in my family. And ________ (它的) name is Mimi.

8. ________ (最后), click "print" and "OK".

计算物体体积时，从物体（    ）面测量；计算容积时，是从物体（    ）面测量。

玻璃黏合剂安装法就是使用黏合剂来固定玻璃的方式。