根据句意及汉语提示完成句子。

1. Try to follow the _____ (节奏), please.  

2. Please _____ (去拿来) the bottle for me, Ling Ling.  

3. If you have  something difficult,  please _____ ( 举起) your hand.

4. We _____ (打算) this new report as teaching material for freshmen.  

5. It took more or less a whole day to paint the _____ (天花板).  

6. True _____ (友谊) is worth more than money.  

7. I'll  finish my high school _____  (教育) here.

一艘载重量达5000t的远洋货轮在武汉装上货满物后，货轮在长江中航行时受到的浮力为           N（g=10N/kg）。当船由长江驶入大海后，船受到的浮力将            ，(选填“变大”、“变小”或“不变”)船身相对于水面将           (选填“上浮”、“下沉”或“不变”)。