大学英语四级听力除了必要的词汇短语外我们还需要准备一些习语，下面这些习语是经常在四级听力中出现的，大家一起学习这些常用的四级听力常用词语吧!

　　91.in hot water - in trouble

　　92.in the air -uncertain

　　93.in the dark - keep someone without knowdge; information from somenoe

　　94.in the lone run - looking toward the future; eventually

　　95.ins and outs - all the details; the various parts and difficulties to be seen

　　96.iron out - remove the difficulties or find an answer for

　　97.jump to conclusions - arrive too quickly at a decision or opinion

　　98.keep an eye on - watch closely

　　99.keep one’sfingers crossed - wish that nothing goes wrong

　　100.keep on one’s toes - be ready for action; prepared

(责任编辑：田学江)