Unit 3 Careers and skills Grammar and usage 名词性从句导学案-高中英语牛津译林版（2020）选择性必修第四册.docxVIP

PAGE PAGE 1 选择性必修四Unit 3名词性从句 一、主语从句 1. 定义：在复合句中，如作主语的是一个从句，该从句被称为主语从句。 2. 连接词 （1）that在主语从句中不充当任何成分，也无意义，只起连接作用，不能省略。 That she became an artist may have been due to her father’s influence. （2）whether和if在主语从句中不充当任何成分，有_______________含义，位于句中有时可换用。 It’s uncertain whether/if he’ll come this evening. 用whether不用if的情况： 1. 主语从句_______________时； Whether we’ll go camping tomorrow depends on the weather. 2. 从句后有_______________或紧跟_______________时。 Whether or not he will come still remains a question. It makes no difference whether you will go today or tomorrow. （3）连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当某种成分。 Who will come to teach us is not known. What hurt my feelings was the judge’s comment. Why he didn’t attend the meeting wasn’t clear. When the plane will take off has not been announced. 3. 谓语动词的数 （1）主语从句后的谓语动词一般用_______________形式。 Who won the match is still unknown. What you said is perfectly true. （2）what引导的从句作主语时，谓语动词的数由_______________决定。 What she lacks is experience. What we need are more books. 4. it作形式主语 主语从句常用it作形式主语放句首,从句为真正的主语，放在句末，使句子更平衡。 常用句型： （1）It+be+_______________+that从句 It is certain/ clear/ important/ necessary/ probable/ possible +that... （2）It+be+_______________+that从句 It is a pity/ shame/ duty+that... （3）It+be+_______________+that从句 It is said / reported/ thought/ hoped/ believed/ known+that... （4）It +_______________ + that从句 It seems that Alice is not coming to the party at all. 爱丽丝似乎根本不会来参加晚会。 It happened that I was out that day. 碰巧我那天外出了。 It appears to me that you don’t want to come to the party. 在我看来，你不想来参加聚会。 二、宾语从句 1. 定义：在复合句中，如作宾语的是一个从句，该从句被称为宾语从句。 2. 用法 宾语从句类型 连接词 例句 that I think that you are right. who, what, which, when, where, how, why Could you please tell me where the restrooms are? whether, if I wonder if/whether they will have the races again next year. 只能用whether情况 （1）______________________________ Please tell us whether to go or stay here. （2）______________________________ I don’t know whether or not I can come. （3）_______________