教案：高三语法复习 非谓语动词——动词不定式（to do)考纲展示复习目标复习重点：非谓语动词之不定式及其各种变式。复习难点：不定式的各种变式基本形式及其使用。课前知识梳理1. 请填出不定式的相关形式。不定式：时态主动态被动态一般式to doto be done进行式to be doing完成式to have doneto have been done不定式的否定形式： not + 不定式 请问不定式在句中可作哪些成分？ 主宾表定状补 3. 请画出下列句子中的不定式并说出它是哪种形式。1. John said that he had run in order to catch the bus. （一般式的主动态）2. He hated to be misunderstood by others. (一般式的被动态)3. He pretended to be listening attentively. (进行式)4. He intended to have told you that. (完成式主动态)5. This work of art seemed to have been created several centuries ago. (完成式的被动态)三. 典例引领，变式内化（一）动词不定式在句中充当的成分(1)作主语。例：To see once is better than to hear a hundred times.变式训练 1：To make money is not the only purpose of our life.赚钱不是我们生活的唯一目的在很多情况下，常用 it 来充当动词不定式的形式主语。例：It is important for us to learn English very well.对我们来说学好英语是非常重要的。变式训练 2： It is necessary for us to protect environment. 对我们来说保护环境是很有必要的。(2)作宾语，常用在以下动词后：help，hope，ask，refuse，decide，promise，wish，pretend，expect，arrange，learn，plan，demand，dare，manage，agree，prepare，fail，determine，offer，choose，desire，elect，long，(happen，seem) 例如：He managed to pass the exam.他成功地通过了考试。He promised to be here at nine.他答应 9 点钟到这儿。I didn’t expect to see you here.我没有料到在这儿见到你。在某些复合宾语中，用 it 做形式宾语，而把不定式放到后面去。例如：He considered it better to leave now.他认为最好现在就离开。I found it impossible to finish the work on time.我发现准时完成这项工作是不可能的。变式训练 1： I hope to receive you letter. 我希望收到你的来信。变式训练 2：...
