高中英语 Unit 4 Body language Part Ⅲ Grammar Writing教学案 新人教版必修4-新人教版高一必修4英语教学案

Part Ⅲ Grammar & WritingGrammar——现在分词作状语一、现在分词作状语的用法 现在分词(短语)在句中作状语用来修饰谓语动词或整个句子，表示动作发生的时间、原因、条件、结果、方式、让步或伴随状况。1．作时间状语现在分词作时间状语时，常放在句首，相当于一个时间状语从句。Hearing the noise，I turned round.＝When I heard the noise，I turned round.听到响声我转过身去。2．作原因状语现在分词作原因状语时，相当于一个原因状语从句，也可以放在句首。Being poor，he couldn't afford a TV set.＝Because he was poor，he couldn't afford a TV set.由于贫穷，他买不起一台电视机。3．作条件状语现在分词作条件状语时，相当于一个 if 引导的条件状语从句。Working hard，you'll certainly succeed.＝If you work hard，you'll certainly succeed.只要努力学习，你肯定会成功的。4．作结果状语现在分词作结果状语时，通常放在句末，中间用逗号隔开，表示一种顺其自然、意料之中的结果。The fire lasted a whole night，causing great damage.大火持续了一整夜，造成了巨大损失。[名师点津] 现在分词作结果状语，是随着谓语动词的发生而产生的自然结果，其逻辑主语往往是前面整个句子所描述的情况，前面有时候可以加 thus。而不定式作结果状语时常表示出乎意料的结果，有时前面可以加 only。试比较：He was caught in the rain，thus making himself catch cold.被雨淋后他感冒了。I hurried to school，only to find it was Sunday.我匆忙赶到学校，结果发现是星期天。5．作让步、方式和伴随状语现在分词作让步、方式和伴随状语时，说明动作发生的背景和情况。作伴随状语时，表示分词的动作和主句的动作同时发生，此时它可转换成并列句。Mary sat by the window of the classroom，reading a book.＝Mary sat by the window of the classroom and was reading a book.玛丽坐在教室的窗边读一本书。[即学即用]用现在分词作状语改写下列句子①When she turned around，she saw a car driving up.→____________________，she saw a car driving up.②They stood there and waited for the bus.→They stood there，____________________the bus.③As he was ill，he couldn't attend the meeting.→______________...