从动物的行为获得的途径来看，“孔雀开屏”属于____行为，“谈虎色变”属于____行为。

关于牛顿第一定律，以下说法正确的是（   ）

用括号内所给动词的适当形式填空，并将答案写在答题卡标有题号的横线上。
⑴We all love Mr Hu who is very kind and ____ (treat) us as his own children.
⑵____  you____ (hand) in the report today?
     Yes, I put it on your desk shortly after lunch .
⑶The cinema we used to go to____  (turn) into a hotel by the government in two years
⑷Timmy is active. He has many hobbies from____  (collect) stamps to outdoor-activities .
⑸The accident was so bad that all the doctors except Dr Li____  (save) the patients in danger at that time,
⑹He told us the boat would not float in the direction of wind if it____  (control).
⑺The old man was honoured for what he____  (do) for the poor since 10 years ago..
⑻The girl thought that her decision ____  (affect) her future study in college and job as well.

小玉漫步在雪后海边，发现道路上的水都结了冰，但海水却没有结冰的．她想到水的凝固点是否与水中含盐量的多少有关呢？于是，她设计了如下探究实验过程，请你和她一起完成这个实验过程．