(课件网) Grammar and usage Unit 2 Natural disasters 语法感悟 语法精讲 达标检测 语法 感悟 请认真阅读下列句子，感悟体会句中的动词不定式 1.I was staying in Atlanta，and that was one of the cities to be hit. 2.The kids were calm enough to protect themselves during the earthquake. 3.The roads were blocked，so there was nothing for me to do but stay inside. 4.I had a difficult problem to deal with. 5.That morning，I turned on the TV for some local news，only to hear that a hurricane was on its way. 6.I want to have a chance to further my study abroad. 1.句 中动词不定式作定语。用来修饰表抽象意义的名词的是句 ；不定式表将来的是句 ；用来修饰不定代词的是句 。 2.句 中动词不定式作结果状语。句 表示意想不到的结果，动词不定式常和 连用。 1、3、4、6 6 2、5 自主发现 1、4 3 only 5 返 回 语法 精讲 一、动词不定式作定语 (一)动词不定式与所修饰词之间的关系 动词不定式与所修饰词之间的逻辑关系常见的有三种：主谓关系、动宾关系和同位关系。 1.所修饰词与不定式是主谓关系(被修饰词是不定式的逻辑主语) His father is the right person to find the missing boy. 他父亲就是寻找那个失踪男孩的合适人选。 2.所修饰词与不定式是动宾关系(被修饰词是不定式的逻辑宾语) Attention，please.I have something important to say. 请注意，我有重要的事情要说。 3.所修饰词与不定式是同位语关系。(不定式与所修饰的词是同一事物) She expressed a wish to make a change. 她表达了希望做出改变的愿望。 (二)常用不定式作定语的情况 1.当中心词为序数词、最高级、the last、the only等或中心词被这类词修饰时，常用不定式作定语。 She is hard-working and is always the first one to come every day. 她很勤奋，每天总是第一个来。 He is the only person to know the truth. 他是唯一了解真相的人。 2.不定式作定语用来修饰的词是抽象名词，常见的有：ability，chance，ambition，anxiety，reply，attempt，wish，plan 等。 He has a wish to travel around the whole country. 他有一个周游全国的愿望。 3.当被修饰的词为something，nothing，anything 等不定代词时，常用不定式作定语。 Every day he makes one of the smaller animals bring him something to eat. 他每天让一个小动物给他带来一些吃的东西。 注意：如果不定式是不及物动词，后面就要加上与其搭配的介词。 The Browns have a comfortable house to live in. 布朗一家人有一所舒适的房子住。 There is nothing to worry about. 没有什么可担心的。 二、动词不定式作结果状语 动词不定式作状语表示结果时常用如下结构： 1.so＋形容词/副词＋as to do如此……以至于…… He studied so hard as to pass the last exam. 他如此努力学习以至于通过了最后一次考试。 2.such＋形容词＋名词＋as to do如此……以至于…… He is not such a silly man as to do that. 他还没有蠢到做那种事。 3.enough to do...足够…… The boy was experienced enough to deal with such a person. 对付那样一个人，那个男孩很有经验。 He walked fast enough to keep up with his coach. 他走得很快，赶上了他的教练。 4.too＋形容词/副词＋to do太……而不能…… The old woman was too weak to carry the heavy box. 这个老妇人太虚弱了而搬不动这个沉重的箱子。 The Californian ship arrived too late to save more people. 加利福尼亚号到得太晚，没能挽救更多的人。 ... ...
