按下列各小题括号内的要求改写句子，每空限填一词。

1. Meimei has to look after her little brother at weekends. (改为一般疑问句) 　　 

    ________ Meimei ________ to look after her little brother at weekends? 　　

2. Both he and his deskmate have passed the exam. (改为否定句) 　　

    ________ he nor his deskmate ________ passed the exam. 　　

3. Let us stop and have a rest, ________?(完成反意疑问句) 　　

4. We have fine weather today. (改为感叹句) 　　

    ________ ________ weather we have today! 　　

5. They are asked to write a diary in English every other day. (就划线部分提问) 　

　________ ________ are they asked to write a diary in English? 　

6. Didn't they tell you about it? (改为被动语态) 　

　________ you ________ about it? 　

7. Will the 29th Olympic Games be held in Beijing? Could you tell me? (合并成含有宾语从句的复合句) 　　

    Could you tell me ________ the 29th Olympic Games ________ be held in Beijing?

下图为人体对体温与水平衡的调节的示意图，请据图作答。

当身体受到寒冷刺激时可引起③（）分泌增多，提高细胞代谢的速度。与此同时，骨骼肌收缩表现出颤抖，请写出完成这一反射活动的反射弧（）。