[温馨提示] (1)lack用作名词时常与介词of搭配,有时也可以和不定冠词连用,如:a lack of food 缺乏食物。
(2)lack用作动词时,既可作及物动词,也可以作不及物动词,若作不及物动词,后常接for或in。
(3)lack作动词时不可用于被动语态。
【活学活用】
(1)[2015·全国卷Ⅰ·阅读七选五] But you can't be successful when there's a lack of trust in a relationship that results from an action where the wrongdoer takes no responsibility to fix the mistake.
但如果出错的人不负责修正错误的话,一段关系中就会出现信任缺失,那么你就不会成功。
(2)Several research institutions were closed down ________________fund.
由于缺乏资金,好几家研究所被迫关门了。
(3)The children lack________ nothing although the parents are poorly dressed.
虽然他们的父母穿得不好,这些小孩什么都不缺。
(4)Though ________ money, his parents managed to send him to university.
尽管缺少钱,但是他的父母设法送他上了大学。
4 switch vt.(to shift, transfer)转换 n.(a device for completing or breaking an electric circuit)开关;(shift or change)转换
(1)switch off关上(电灯、电视等)
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