根据菜豆种子结构示意图，请回答下列问题：（共5分）

（1）菜豆种子的结构是由         和         两部分组成的。

（2）在菜豆种子中储存营养物质的结构是[5]          。

（3）种子萌发时最先突破种皮的结构是[2]            。

（4）菜豆种子的外面有果皮包被，因此在分类上属于                 植物。（填“裸子”或“被子”）

词汇运用， 用括号内所给的单词的适当形式填空。

1. I like my new shoes. _____ (it) are brown.    

2. My jeans are purple , and hers _____ (be) pink .

3. —Are the _____ (library) big and nice?

     —Yes.

4. Would you _____ (drink) another glass of water ?

5. He is good at _____ (swim).

6. Why not _____ (have)a cup of tea?

7. Helen _____  (not get ) up at six every day .

8. —Can I go to play basketball now, Mum?

    —Sorry. You must do your homework _____ (one).  

9. They are _____  (they)coats. Pleases put _____ (they) on the bed.

10. On Sundays, I often do some _____ (clean) with my mother.