初中英语状语从句教案及练习讲解

1、新课标中学英语状语从句教案及精品练习讲解把握状语从句的作用； 把握状语从句的意义； 把握各种不同类型的状语从句；【学问要点】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、缘由、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），untiltill（直到

2、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，如谈论将来的事情， 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、假如 no matter 不管来引导，假如主句是一般将来时，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 mat

3、ter what he say， i won't believe him ，3. 缘由状语从句(1) 常由 because, since, as 引导；(2) because表示直接的缘由，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表示非常明显的缘由，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，表示一种推理或说明，或用作附加说明，而不是指理由或缘由，语气最弱，一般不放在句

4、首，常译成 “由于”；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的区分：1 so形容词 a / an名词2such a/an 形容词名词（ 3 ）such 形容词不行数名词/可数名词复数4so many/much/few/littl

5、e 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 library5. 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

6、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（似乎）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 1the question was difficu

7、lt that nobody couldanswer .a. very.them解析由于句中有b. very.itthat,所以前面用c. so.themso, 构成 sothatd. so.it从句，而question是单数，用代词it ，应选 d；例 2it was that he had to ask for help.a. such big workb. so big a workc. so a big workd. such big job解析work是不行数名词，指工作或工程，应选a ；例 3he won't believe it he sees it with his o

8、wn eyes.a. whenb. afterc. untild. as soon as解析此句是 notuntil,直“到才”；故答案选 c；例 4i'll go with you next sunday.a. hunting.when i will have timeb. to hunt.until i'm freec. boating.if i have nothing to dod. 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 中挑选，又由于when和 if在句中引

9、导状语从句时，要用一般现在时表示将来，应选c；例 5it's almost three years i last saw her.a. sinceb. whenc. thatd. 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 ，应选 a；【选讲例题】用所给动词适当形式填空例 6i'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

10、般现在时表示将来时， 其次句中 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 homenext 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，其次句中的 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】单项挑选 1.jack was tired he played tennis all afternoon.a.

11、ifb. as soon asc. becaused. before 2 he finished his work, he left hurriedly.a. as soon asb. in order thatc. untild since 3. the rain has stopped, let's start again.a. forb.becausec. sinced what 4.he started early he could get there before nine.a. so thatb. becausec. so as tod. in order to 5.the

12、y waited it was dark outside.a. sinceb. untilc. sod. 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. 留意区分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； sothat 、so that、suchthat3. 留意用一般现在时表示将来的几种句式；【巩固练习】一、单项挑选 6.mike is boy that we all like him.a.agoodsob.sogoodac.asuchgoodd.such good a 7.it was

13、 that they wanted to go for a picnic in the country.a. such a fine weatherb. so fine a weatherc. a fine weather sod. such fine weather8.shipsare thanplanesthatfewpeopletakethem on business.a. too much slowerb. very much slowerc. so much slowerd. much more slower9.theyhadstartedharvestingrice therain

14、began.a. afterb. beforec. sinced. as二、在以下各句中填入适当的状语从句连词，使句子意思完整、通顺10 iwilltellyouthesecret youdon'ttellanyoneelse about it.11 maryalwaystakesaseatinthefirstrow she can hear better.12. wedidn'tnoticeanythingwrongwiththe computer we started using it.13. the young doctor was a bit worried it wa

15、s his first time to operate on a patient.14the 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 iwenttobedaftermyfathercamebackhome yesterday.i go to bed my father came back home yesterday.18 theislandissobeautifulthatitcanattractlar