原因状语从句课件.ppt

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1、Oxford EnglishModule 4 DiscoveryDiscovery1 1I am going to Yuexiu Park because I want to go cycling.Read the following sentences and underline the conjunction in each sentence.I am going to Yuexiu Park as I want to go cycling.I am going to Yuexiu Park since I want to go cycling.常用的连词：because , as 和 s

2、ince ：因为；由于As no one else saw these aliens, I refuse to believe you. = I refuse to believe you as no one else saw these aliens. P103区别：because 语气最强，强调他人未知的原因，常常用来回答why的提问。because从句也可以单独成句，但as和since不可以。since：因为；既然because , as , since 都不可以和so放在同一个句子里。e.g: - Why are you late for school today? - Because

3、 I cant catch the early bus. 练习：用because 、as、since连接下列句子：1. I went to bed early. I would have a test the next day. (because)2. I didnt go to Toms birthday party. I was not invited. ( since)3. I cant get into my home. I forgot to bring my keys. (as )1. I went to bed early because I would have a test

4、the next day. Because I would have a test the next day, I went to bed early. 2. I didnt go to Toms birthday party since I was not invited. Since I was not invited, I didnt go to Toms birthday party. 3. I cant get into my home as I forgot to bring my keys. As I forgot to bring my keys, I cant get into my home. because 和 because of 的区别：because + 句子because of + 词组/ 名词e.g:The trip to the zoo was cancelled (取消) today _ it rained heavy.The trip to the zoo was cancelled (取消) today _ the heavy rain. becausebecause of