give up 则还可表示“放弃(希望)；戒除”的意思，作及物动词用，其后接名词或动词作宾语。如：All hope of finding the missing aircraft was given up and the search abandoned.要找到那架失踪的飞机已经毫无希望，于是搜索停止了。He soon gave up smoking when he heard the medical report.他听了那次医学报告后，不久就把烟戒了。
8、give off, give out
这两个短语都表示“散发，发出”之意，一般可以换用，但侧重点有所不同。give off通常用来表示“散发，发出”某种气体或气味。如：
Boiling water gives off steams.开水散发出蒸汽。
This milk must be bad, for it is giving off a nasty smell.牛奶一定变质了，因为它散发出一种令人恶心的气味。
The chimney no longer gives off volumes of waste gas into the atmosphere, as protective filters are being used.加装了防护过滤器以后，这烟囱已不再向空中散发成股的废气了。
give out 则通常用来表示“散发”某种光，声，热，信号等物理现象。此外，它还可以表示“分发，宣布，耗尽”等现象。如：
The leaves gave out a whirring sound.树叶发出沙沙声。
The sun gives out light and heat to the earth.太阳向地球发出光和热。
The ship gave out radio signals for help.船发出无线电信号求助。
The government gave out food to people out of work.政府向失业者分发食品。 |
