2017年高考英语语法总复习：2017年高考英语语法总复习11.名词性从句.pptx

2017年高考英语语法总复习11.名词性从句一、名词性从句的种类　名词性从句包括主语从句、宾语从句、表语从句、同位语从句。二、引导名词性从句的连接词1．连接代词： who，whose，whom，what，which有词义，在从句中担任成分，如主语、表语、宾语或定语等。It has not been decided yet when we will leave.We are worrying about what we should do next.2．连接副词：when，where，why，how有词义，在从句中担任成分，作状语。Can you tell how that man is feeling by looking at her face？3．连接词： whether，if，as if，if (whether)，as if虽有词义，但在从句中不充当任何成分，只起连接作用；that无词义，在从句中也不充当任何成分，只起连接作用，有时可省略。My suggestion is that we (should) have a discussion about this matter.The question whether we need more time to do the work hasn’t been discussed.三、that，what引导的名词性从句的区别 　引导名词性从句时，that没有词义，在从句中不作任何成分。当从句意义完整，不缺任何成分时，往往选用that；而what引导名词性从句时，意为“什么”或“……的”，在从句中用来作主语、表语或宾语。What was most important to her，she told me，was her family.(主语从句；what作主语)Before the sales start，I make a list of what my kids will need for the coming season.(宾语从句；what作宾语)As a new graduate，he doesn’t know what it takes to start a business here.(宾语从句；what作宾语)China is no longer what she used to be.(表语从句；what 作表语)It never occurred to me that you could succeed in persuading him to change his mind.(主语从句)One reason for her preference for city life is that she can have easy access to places like shops and restaurants.(表语从句)(1)that引导主语从句时，常用it作形式主语，常见句型有：①it＋be＋形容词(如： obvious，true，natural，surprising，good，wonderful，funny，possible，likely，certain，probable，evident，clear，apparent等)＋that从句。People are social creatures by nature，and so it is hardly surprising that part of their self-respect comes from the approval of others.②it＋be＋名词(如： no wonder，an honour，a good thing，a pity，no surprise等)＋that从句。It’s a great pity that it’s probably the last time this will happen.③it＋be＋过去分词(如： said，reported，thought，estimated，expected，decided，announced，arranged，recognized等)＋that从句。It is known to all that physical exercises can improve our physical and mental health.类似句型还有：It cannot be denied that... /It must be admitted that...④it＋动词(如：seem，appear，happen，occur to sb.，doesn’t matter，make no difference等)＋that从句。It doe