初中英语状语从句教案及精品练习讲解

1、精品文档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

2、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： ill go on with the work wheni （come） back tomorrow.as soon as he （finish） the work, he will cometo seeme.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： ill go for a picnic if it (be) fine.no matt

3、er what he (say) ， i wont 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

4、最弱，一般不放在句首，常译成 “因为 ” 。如： it is raining hard, we wont go hiking.you are ill, ill go alone.i cant go to school i am ill.you havent met him, he didnt 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 / f

5、ew / little 形 容 词 名 词如： its a heavy box that nobody can move it.its 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： ill speak slowlyyoucanunderstand 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： im taller he (is).science is not popular

6、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： ill go where work is hard.【典型例题解析】例 1 the question was difficult th

7、at nobody couldanswer.a. very.themb. very.itc. so.them d.50.1. it解析 因为句中有that,所以前面用so,构成sothat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 wont believe it he sees it with his ow

8、neyes.a. when b. afterc. untild. as soon as解析 此句是notuntil, 直到才”。故答案选g例 4 ill go with you next sunday.a. hunting.when i will have timeb. to hunt.until im 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中选择，又因为when和if在句中引导状语从句时，要用一般

9、现在时表示将来，故选c。例 5 its 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 its+ 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 ill 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

10、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 cant. 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. ifb. as soo

11、n as c. becaused. before( ) 2he finished his work, he left hurriedly.a. as soon as b. in order thatc. until d since( ) 3.the rain has stopped, lets start again.a. for b. because c. sinced 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.

12、they waited it was dark outside.a. sinceb. until c. 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. 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；sothat、so that、suchthat3. 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7 欢迎下载 。精品文档( ) 6.mike is boy that we all like him.a. a good so b. so good a c. a

13、 such good d. such good a( ) 7.it was that they wanted to go for a picnic in thecountry.a. such a fine weatherb. so fine a weatherc. a fine weather sod. such fine weather( ) 8.ships arethan planes that few people take themon business.a. too much slowerb. very much slowerc. so much slowerd. much more

14、 slower( ) 9.they had started harvesting rice the rain began.a. afterb. before c. sinced. 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 dont tell anyone elseabout it.11 mary always takes a seat in the first row shecan hear better.12. we didnt notice anything wrong with the comput

15、er we started using it.13. the young doctor was a bit worried it washis first time to operate on a patient.。14 the elephant has strong a body it can do heavywork for people.15 . it is a difficult problem nobody can workit out.三、句型转换16 use your head, then youll find a way.you use your head, youll find a way.17 i went to bed after my father came back home yesterday.i go to bed myfather cameback homeyesterday.18 the island is so beautiful that it can attract large numbers of people.the island is beautiful attract la