高三连词和状语从句.ppt

连词 概说 连词是一种虚词，用于连接单词、短语、从句或句子，在句子中不单独用作句子成分。连词按其性质可分为并列连词和从属连词。 1. 并列连词用于连接并列的单词、短语、从句或句子，如and, but, or, for等； 2. 从属连词主要引出名词性从句(主语从句、宾语从句、表语从句等)和状语从句(时间状语从句、条件状语从句、目的状语从句等)，引出名词性从句的连词如that, whether等，引出状语从句的连词如when, because, since, if 等。 一 并列连词 表示联合 (and , both…and , either…or…, neither…nor , not only…but (also) , as well as, when就在这时等) 表示选择 (or, or else, either…or…, neither…nor) 表示转折 (but, yet) 表示因果 (for, so) 表示对比 (while) Practice: He didn’t go ______ she didn’t go either. Turn down the music ______ you’ll be complained. He must be ill, ______ he is absent today. Great progress has been made, _____ much still remains to be done. China is a developing country _____ the US is a developed one. 二 从属连词 引导名词性从句: (主语从句、宾语从句、表语从句和同位语从句) 引导状语从句: (时间状语从句、条件状语从句、目的状语从句等) 1 引导名词性从句的连接词： A. 连词(5个)： 1）that 不仅没不充当句子成分，而且没有词义，在句子中只起连接作用 2）if, whether 虽不充当句子成分，但有词义，即表示“是否”。 3) as if ,as though （均表示“好像”，“似乎”） 如： He replied that he was going by train. I wonder if it’s large enough. I worry about whether I hurt her feelings. She looks as if she were ten years younger． B. 连接代词：what, whatever, who, whoever, whom, whose, which C. 连接副词：when, where, how, why等。 2 引导状语从句的从属连词有: 时间状语从句: when, while, as, before, after, since, until, till, once… 条件状语从句: if, unless, as [so] long as, in case.. 目的状语从句: in order that, so that, … 结果状语从句: so that, so…that, such…that 原因状语从句: because, as, since, now (that)… 让步状语从句: although, though, even if/though, while, however, whatever, whoever, whenever… 方式状语从句: as, as if, as though 地点状语从句: where, wherever, everywhere, anywhere 比较状语从句: than, as…as 一、引导时间状语从句的从属连词: when, while, as, before, after, since, until, till, once whenever He entered the room ______ we were watching TV. Please be quiet _____ I am doing homework. The students took notes ____ they listened. He didn’t get up ____ the alarm clock went off. They worked on the farm _____ it was dark. It ____________(be) just a week since we arrived here. I _____________(wri