一、日常交流类
a big headache- 令人头痛的事情
absent from- 缺席,不在
in other words- 换句话说
on one's mind- 心不在焉
out of the blue- 突然发生
二、学习与生活类
a fraction of- 一部分
a matter of concern- 焦点
in place of- 代替
be absorbed in- 全神贯注于
lose track of- 丢失联系
三、行为描述类
get on with- 与...相处
get off with- 逃脱处罚
put on- 穿戴
run away with- 逃跑
be enthusiastic about- 热衷于
四、时间与程度类
sooner or later- 或早或晚
a good/great deal of- 大量
little by little- 逐渐地
to the best of one's ability- 尽最大努力
exceed expectations- 超出预期
五、特殊表达类
absent-minded- 心不在焉
be engrossed in- 沉迷于
be rapt in- 全神贯注于
it's not the way I hoped it would be- 不如预期
you'll never guess- 你永远猜不到
这些短语覆盖了高中英语中的高频场景,建议结合具体语境记忆,并通过造句练习加深理解。