专题 5 非谓语动词考纲展示 命题探究基础点1 不定式作状语不定式常可用作目的状语、结果状语或原因状语，相当于一个状语从句。(1)作目的状语不定式作目的状语，可用 so as to/in order to 替换，但 so as to 一般不可置于句首，意为“为了；想要”。So we went over to the flower seller and asked her if we could buy a flower for the lady to_cheer_her_up. [福建高考]因此，我们走到卖花者面前，问她我们能不能买一枝花给那位女士以让她高兴起来。In_order_to_answer this question, we must first examine whether people really want to preserve the historic feel of an area.[安徽高考]为了回答这个问题，我们必须首先检查人们是否真地想保护一个地区的历史遗迹。(2)作结果状语不定式用于 so...as to...(如此……以至于……)，such...as to...(如此……以至于……)，enough to do...(足够做……)，too...to do...(太……而不能)，only to do(表示意外结果或事与愿违的结果)等结构中常用来表结果。Eventually Mildred felt comfortable enough__to_jump_up on Tom's leg and stay long enough for me to get a picture of the two of them together.[四川高考]最终，米尔德里德感到足够的舒适，可以跳到汤姆的腿上呆足够长的时间，而我可以为他们两个一起拍照。How often do you have something you want to achieve—only_to_end_up confused by all of the options in front of you and never make progress？[全国卷Ⅰ]你多久会遇到一次这样的情况：你想得到一些东西，结果却被摆在你面前的选择所困惑，停滞不前？I rushed to the station, only_to_find the train had already gone.我匆忙赶到火车站，却发现火车已经开走了。特别提醒不定式作结果状语时，常用于 so...as to..., such...as to..., enough to..., too...to..., only to 等结构中。如：She was so late as_to miss half of the lecture.她来得如此晚以至于错过了一半的演讲。She is such a good teacher as_to be respected by all her students.她是个如此好的老师，以至于受到她所有学生的尊敬。(3)作原因状语不定式作原因状语，常用在“主语＋系动词＋形容词＋to do”结构中。这类形容词有：easy, diffic...
