1. 看图，读一读，选择句子补全对话。
   

2. A. I'm thirsty.
   
3. B. Thank you, Mum.
   
4. C. Good afternoon, Lily.
   
5. D. Do you like it?
   
6. E. How does it taste?
   

Lily: Good afternoon, Mum. I'm home.

Mum:  ____ How are you today?

Lily:____ It's very hot today.

Mum: Have a pear, Lily.

Lily: ____ 

Mum: Taste it.  ____       

Lily: It's sweet and juicy.

Mum:  ____      

Lily: Yes, I do.

下列有关显微镜使用的叙述，错误的是（　　）

已知函数f（x）的定义域为R．当x＜0时，f（x）=x³﹣1；当﹣1≤x≤1时，f（﹣x）=﹣f（x）；当x＞ $\frac{1}{2}$ 时，f（x+ $\frac{1}{2}$ ）=f（x﹣ $\frac{1}{2}$ ）．则f（6）=（　　）

通过上网或查资料获得答案的方式叫做获得____，通过做实验找到答案的这种方式叫做获得____（填“直接知识”，“间接知识”）。