高三英语二轮复习语法专项十状语从句一教学案(新)

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课题：状语从句（一）

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教学目标：了解状语从句高考考点并掌握解题技巧.

教学重难点：了解状语从句高考考点并掌握解题技巧.

教学过程

集体备课部分（学生活动部分）个性备课部分

/学生记录Task 1【自主学习】检查晨读内容

Task 2【知识梳理】

考点1 时间状语从句

【典例导引】(2015·北京高考)______the damage is done, it will take many years for the farmland

to recover.

A. Until

B. Unless

C. Once

D. Although

【答题技巧】

1. while, when和as的用法区别:

(1)基本用法。

①while引导的时间状语从句须用持续性动词, 意为“当……时候”“趁着……”。

We must strike while the iron is hot.

②when引导的时间状语从句既可用持续性动词又可用非持续性动词。

③as意为“一边……一边……”“随着”“正当”。

As each day passes, China becomes more and more powerful.

(2)特殊用法。

①when可作并列连词, 表示突然发生某事, 意为“正在……这时/忽然……”。句型如：sb. be doing

sth. when…;sb. be about to do sth. when…;sb. be on the po int of doing when…

She was about to walk out of the door when the telephone rang.

②while可作并列连词, 表示“然而, 却”。

Motion is absolute while stagnation is relative.

2. before常用句式:

It will(not)be+一段时间+before. . . ; It was not long before. . . ; It was+时间段+before. . . 3. since 常用句式: It is/has been+一段时间+since. . . (从句用一般过去时) It was+一段时间+since. . . (从句非延续性动词用过去完成时)

4. 表示“一……就……”的句式: as soon as/once; on/upon(doing)sth. ; no sooner. . . than; hardly/scarcely. . . when; the moment; the instant; instantly; immediate ly 等

5. 引导时间状语从句的其他常见连词(短语): whenever, every time, each time, next time, the

first/last time, any time, by the time 等。

6.till/until 直到 not…until 直到…才

强调：It is/was not until…that…

倒装：Not until…(部分倒装)

It was not until you told me that I knew it.

---Not until you told me did I know it.

集体备课部分（学生活动部分） 个性备课部分/学生记录 装

订线 考点2 条件状语从句

【典例导引】(2015·江苏高考)It is so cold that you can’t go outside ______ fully c overed

in thick clothes.

A. if

B. unless

C. once

D. when

【答题技巧】

1. 条件状语从句的引导词。

if, unless(if. . . not), if only, once, so/as long as, supposing(that)(假设), in case(万一……, 以防……), so/as far as(就……而言), on condition that(条件是……),

provided/providing(that)(假如)等。

2. 从句中一般用一般现在时表示将来。

I won’t go unless I’m invited.

You may use the room as/so long as you clean it up afterwards.

3. 特殊条件句。

“祈使句+and/or/o r else/otherwise+陈述句”的句型中, 祈使句可转化成条件状语从句。

Use your head, a nd you’ll find a way. =If you use your head, you’ll find a way. 考点3 原因状语从句

【典例导引】(2016·天津高考)______the average age of the population increases, there are more and more old people to care for.

A. Unless

B. Unt il

C. As

D. While 【答题技巧】

1. 引导原因状语从句的从属连词主要有: because, as, since, seeing(that), now(that), considering(that)等。

Now(that)you are grown up, you should not rely on your parents. 既然你长大了, 就不该依靠你的父母了。

2. when 除引导时间状语从句外, 还可引导原因状语从句, 表示“既然, 鉴于”。

How can they learn anything when they spe nd all their spare time watching television? 既然他们把所有的空闲时间都用来看电视了, 还能学什么东西呢?