如图所示为生活中常用的热水瓶，注入一定量的热水后，立即盖上软木塞，软木塞常会跳起来.在软木塞跳起来的过程中，热水瓶内温度____(选填“升高”、“不变”或“降低”).汽油机中的____冲程与这一现象的能量转化相同.

Ladiesorgentlemen,whetheryoungorold,_______somemoneyofyourstothepoorpeopleinthemountainareawhoaresuffering.

Themachineis_______(控制)byarobotinsteadofaworker.

了却君王天下事，__________。(辛弃疾《破阵子》)

-WheredidyougolastSunday?

-Wewenttothebeach,andwehadgreatfun_______volleyball.