初中英语状语从句教案及精品练习讲解

新课标初中英语状语从句教案及精品练习讲解 掌握状语从句的作用 掌握状语从句的意义 掌握各种不同类 型的状语从句 知识要点 状语从句在句中作状语 修饰句中的动词 形容词或 副词等 状语从句由从属连词作关联词 从属连词在从句中不充当句子成分 状语从句在主句之前 一般要用逗号分开 朗读时用升调 状语从句在主句之后 一般不用逗号 朗读时用降调 状语从句按其意义和作用可分为时间 条件 原因 让步 目的 结果 方式 比较 地点等类型 1 时间状语从句 1 常用的连词有 when 当 时候 while 当 时候 before 在 以前 after 在 以后 until till 直到 为止 since 自从 以来 as soon as 一 就 等 2 时间状语从句中一般不用将来时 若谈论将来的事情 往往用 一般现在时代替 如 I ll go on with the work when I come back tomorrow As soon as he finish the work he will come to see me 2 条件状语从句 常由 if 假如 如果 No matter 不管 来引导 如果主句是一般 将来时 从句往往用一般现在时来表示将来 如 I ll go for a picnic if it be fine No matter what he say I won t believe him 3 原因状语从句 1 常由 because since as 引导 2 because 表示直接的原因 着重点在从句 用于回答 why 语 气最强 because 不能与 so 连用 since 一般表示对方已知的 无须加以说明的既成事实的理由 全 句中心在主句 语气比 because 弱 常译为 既然 as 表示十分明显的原因 一般说明因果关系 着重点在主句 语气 较弱 常译为 由于 for 是个并列连词 只能放在另一个并列分句后面 表示一种推理或 解释 或用作附加说明 而不是指理由或原因 语气最弱 一般不 放在句首 常译成 因为 如 it is raining hard we won t go hiking you are ill I ll go alone I can t go to school I am ill You haven t met him he didn t come here 4 结果状语从句 一般由 so that such that 引导 so 与 such 的区别 1 so 形容词 a an 名词 2 such a an 形容词 名词 3 such 形容词 不可 数名词 可数名词复数 4 so many much few little 形容词 名词 如 It s a heavy box that nobody can move it It s heavy a box that nobody can move it There are many books in the library 5 目的状语从句 往往由 so that 引导 如 I ll speak slowly you can understand me 6 比较状语从句 常由 as as than not as so as 等引导 比较从句部分常是 省略句 如 I m taller he is Science is not popular English 7 让步状语从句 由 though 或 although 虽然 等引导 但不能与 but 同时连用 改错 Though it snowed heavily but they kept on working 1 方式状语从句 常用 as if as though 好像 引导 如 He acted as if though nothing had happened 2 地点状语从句 常用 where wherever 引导 如 I ll go where work is hard 典型例题解析 例 1 The question was difficult that nobody could answer A very them B very it C so them D so it 解析 因为句中有 that 所以前面用 so 构成 so that 从句 而 question 是单数 用代词 it 故选 D 例 2 It was that he had to ask for help A such big work B so big a work C so a big work D such big job 解析 work 是不可数名词 指工作或工程 故选 A 例 3 He won t believe it he sees it with his own eyes A when B after C until D as soon as 解析 此句是 not until 直到 才 故答案选 C 例 4 I ll go with you next Sunday A hunting when I will have time B to hunt until I m free C boating if I have nothing to do D to boat as I will not be so busy 解析 去打猎 划船常用 go hunting go boating 所以应在 A 和 C 中选择 又因为 when 和 if 在句中引导状语从句时 要用一般 现在时表示将来 故选 C 例 5 It s almost three years I last saw her A since B when C that D after 解析 本句表示自从上次见到她几乎有三年了 句型 It s 时间段 since 从句 过去时 故选 A 选讲例题 用所给动词适当形式填空 例 6 I ll go to Shanghai if I have time tomorrow And I want to know if you have time to go with me 解析 第一句中 if 是 假如 的意思引导状语从句 要用一般现在时 表示将来时 第二句中 if 是 是否 的意思 引导宾语从句 仍用将 来时 例 7 Could you tell me when he return home next week Sorry I can t But I will ring you up when he return home 解析 第一句中的 when 意思是 什么时候 引导宾语从句用将来 时态 第二句中的 when 是 当 时 的意思 引导时间状语从句 用一般现在时表示将来 课内追踪练习 单项选择 1 Jack was tired he played tennis all afternoon A if B as soon as C because D before 2 he finished his work he left hurriedly A As soon as B In order that C Until D Since 3 the rain has stopped let s start again A For B Because C Since D What 4 He started early he could get there before nine A so that B because C so as to D in order to 5 They waited it was dark outside A since B until C so D while 复习小结 1 牢记引导各类状语从句的连词及它们的不同意义和作用 2 注意区别 when 什么时侯 引导宾语从句 当 时 引导状语从句 if 是否 引导宾语从句 假如 引导条件状语从 句 so that so that such that 3 注意用一般现在时表示将来的几种句式 巩固练习 一 单项选择 6 Mike is boy that we all like him A a good so B so good a C a such good D such good a 7 It was that they wanted to go for a picnic in the country A such a fine weather B so fine a weather C a fine weather so D such fine weather 8 Ships are than planes that few people take them on business A too much slower B very much slower C so much slower D much more slower 9 They had started harvesting rice the rain began A after B before C since D as 二 在下列各句中填入适当的状语从句连词 使句子意思完整 通 顺 10 I will tell you the secret you don t tell anyone else about it 11 Mary always takes a seat in the first row she can hear better 12 We didn t notice anything wrong with the computer we started using it 13 The young doctor was a bit worried it was his first time to operate on a patient 14 The elephant has strong a body it can do heavy work for people 15 It is a difficult problem nobody can work it out 三 句型转换 16 Use your head then you ll find a way you use your head you ll find a way 17 I went to bed after my father came back home yesterday I go to bed my father came back home yesterday 18 The island is so beautiful that it can attract la