从句what和how的用法与区别.docx

从句 what 和 how 的用法与区别what 和 how 的用法比较what 讲解what = all that/ the thing that/ the person that. 只引导主从，宾从，表从，不能引导定从和同位 从，即 what 前面不能有名词既起连接作用，又在从句中充当主、宾、表语的成分即： what+不完整句子，做主从，宾从，表从例： What he said made me happy.(主从)what引导主语从句，在从句中作宾语1. what引导主语从句的特点：a.前面没有东西；b.后面有两个动词I thought the movie would be good for my English, but 76 it turned out, it was an Italian movie.A) since B) when C) what D) as解析 答案为 D2. what 引导宾从和表从公式：动词/介词/系词+that+不完整句子I know what he said.(宾从)what引导宾从，在从句中作宾语I listen to what he said.(宾从)what引导宾从，在从句中作宾语。

This is what he said.(表从)what引导表从，在从句中作宾语例: You 80 the clock with the latest time at 81 you want to be wakened...81. A) where B) this C) which D) that解析 答案为 CFor starters, cabin pressures at high altitudes are set at roughly 81 they would be if you lived at 5,000 to 8,000 feet above sea level.A) who B) what C) which D) that解析 答案为Bwho在从句中一般做主语，只有在非正式时做宾语优先原则： however > whether > what... but a bird has a single alarm cry, 75 means “danger!"A) this B) that C) which D) it解析 答案为C做题时，排除其他选项只剩which和that时，有逗号的选which，没逗号的 一般选 that。

The word geography 74 from two Greek words, ge, the Greek word for “earth" and graphein, 75 means “to write".75. A) what B) that C) which D) it解析 答案为 CBefore you buy an expensive 84 , or a service, do check the price and 85 is on offer.85. A) what B) which C) that D) this解析 答案为 Awhat 与 how 的区别what连接代词，必须代替从句中的主/宾/表语例： I don't know what to do.how连接副词，必须代替从句中的方式状语例： I don't know how to do it.We started thinking of to do about it.A) what B) how C) whether D) when 解析 答案为 AIt caused them to think about 84 they might control the experiences of children… A)what B)how C)whatever D however解析 答案为Bo how在从句中作方式状语。