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4.lack vt.缺乏，没有 n.缺乏，不足；短缺的东西 [高考例句](2015·四川，阅读D)Lack of sleep could put the birds' health at risk. 睡眠不足会使鸟类的健康处于危险中。 (1)lack sth 缺乏/少某物(没有被动语态) (2)(a) lack of...缺乏…… for/through lack of 因缺乏…… (3)lacking adj.缺少的，不足的(不置于名词前) be lacking in sth 缺少某物 ①More and more high-rise buildings have been built in big cities ________ lack of space. 因缺乏空间，大城市里已经建起了越来越多的高楼大厦。 ②It's not that exercise makes you healthy，it's more that a lack ________ exercise leaves your body weak and easily affected by disease. 并不是锻炼使你健康，更应该是缺乏锻炼造成你的身体虚弱，容易遭受疾病的侵袭。 ③Because she was lacking ________ training，she was afraid of making an exhibition of herself. 她因缺乏训练而担心会出洋相。 答案 ①for ②of ③in 5.access n.接近或进入之路；(使用或见到的)机会/权利 [教材原句]The thing about being a teacher is that you have access to children's minds when they are open and eager to learn. 作为老师，你可以在孩子们心灵顿开、渴望学习时走进他们的思想。 (1)access to 进入……，与……会面 gain/obtain/get/have access to 有权进入……，有权使用…… | 
