语法必修二module 2法必修二module 2语法必修二module 2语法必修二module 2.ppt

Grammar ——动词 to 不定式作状语 1. 不定式作目的状语,表目的 1. He broke into the house to steal sth. 2. He uses a computer to send email. 3. The soldier stopped to talk to us. 4. I went to England to learn English. 5. I’m saving up to buy a computer . 6. We eat to live but we don’t live to eat. 1). 不定式作目的状语时，常用to do, so as to 或 in order to + 动词原形 1.He closed the window in order to keep warm. 2.They came in quietly so as not to wake up  the children. 否定形式：so as not to; in order not to 1.Let’s hurry so as not to be late for school. 2. In order not to miss the early bus, he got up  early in the morning . Let’s hurry so as to /in order to go to school on time.  In order to go to school on time, he got up early. 注意：in order to 可用在句首和句中 so as to只能用在句中而不能用在首。 1) He opened the door for the children to  come in. 2) We are now using the series “New  Standard English ” for students to make  great progress. 2). 不定式表目的时，通常它的逻辑主语就是句子的主语eg.He closed the window in order to keep warm. 但如果不是的话，就要用for …的结构表示逻辑主语。 2. 不定式还可以作结果状语或原因状语： 结果状语:常用 enough‥to do , too‥to , so‥as to do , such ‥as to do 1. He was so late as to miss half of the lecture. 2. She is such a good student as to be  respected by all her classmates. 3. The house is large enough to hold 2000  people. 原因状语： 1. She was surprised to see us in the street of  London. 2. He laughed to hear the news. 不定式作结果状语表示出乎意料的结果, 且不定式前常有only, never, 强调惊讶或失望。 V-ing作结果状语强调一种必然的因果关系 He hurried to his house, only to find it had been broken into. Her parents died, leaving her an orphan. There was a tornado yesterday, causing 100 deaths. 3. so … that 和 such… that 也用来引导结果状语从句。 1. Some of them behave so badly that people called the police. 2. They played so happily that they forgot the time. such a / an + adj. + 名词单数 + that so + adj./adv.+ that 3. It is such an interesting story that all of  them like it. 4. It was such a dangerous drug that he  nearly died. so adj. + a / an +名词