1. The thermometer rises or falls according as the air is hot or cold.
    寒暑表随着空气的冷热而升降。

2. The mercury in thermometer mounted up( =rose)to 35℃
    温度计的水银柱升到摄氏三十五度。

3. The tempreture shown on thermometer is 16 degree centigrade.
    温度计上显示的温度是十六摄氏度。

4. Coldness causes contraction of the mercury in the thermometer.
    寒冷使得温度计里的水银收缩。

5. One roommate is always cold, while the other never wants to turn up the furnace, even though the thermometer says it's minus five outside.
    一位室友感觉很冷，而另一位却往往不想调高暖气温度，尽管气温计上显示室外温度已达零下5度。