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教学课件
新人教版八年级下册
Unit 3 语法专项——连词引导的状语从句
全解精讲+分层练习
1
连词(although/until/so that/if)引导的状语从句
专项讲解与练习
学习目标:掌握四大状语从句用法、
熟练完成句式转换与综合运用
学习目标
1.理解四大连词的核心含义及从句类型
2.掌握各状语从句的时态、句式核心规则
3.能区分并正确使用四类连词完成填空
4.会进行句型改写、合并及语篇综合运用
核心含义:虽然、尽管
从句类型:让步状语从句,表相反/让步背景
关键规则:不能与but连用,二者选其一
语序要求:从句用陈述语序,位置可句首/句中
知识点1:although引导让步状语从句
although 例句精讲
1.Although it rained hard, we went hiking.
(尽管雨下得大,我们还是去徒步了。)
2.She still smiled although she failed the test.
(尽管考试失利,她依然微笑着。)
3.错误:Although he is ill, but he goes to school.
4.正确:Although he is ill, he goes to school.
although 小试牛刀(单句填空)
用although填空,注意句式规范
1.__________ she is short, she plays basketball well.
2.He keeps reading __________ he has a headache.
3._________ the movie is long, it is very interesting.
although
Although
Although
知识点2:until引导时间状语从句
核心含义:直到……为止
从句类型:时间状语从句,表动作持续终点
两大用法:肯定句+延续性动词;否定句+not...until
位置:可置于句首或句中,陈述语序
until 肯定句用法
要求:主句动词为延续性动词(wait/stay/keep等)
含义:动作持续到从句动作发生时停止
例句1:We stayed at the park until the sun set.
例句2:He waited for me until I finished my work.
until 否定句(not...until)用法
要求:主句动词为短暂性动词(know/start/go等)
含义:动作直到从句动作发生才开始
例句1:I didn’t start the game until everyone arrived.
(直到每个人都到了我才开始这次游戏。)
例句2:She won’t leave until she gets the answer.
(直到得到答案她才离开。)
until 易混辨析
延续性动词(肯定):work / study / wait / live
短暂性动词(否定):come / go / start / finish / know
例句对比:I waited until 9 o’clock.(√)
例句对比:I didn’t leave until 9 o’clock.(√)
until 小试牛刀(单句填空)
用until填空,判断是否用否定形式
1.The baby won’t stop crying _______ his mom comes.
2.They will work in the office _______ the work is done.
3.I _______ (not) go to bed _______ I brush my teeth.
until
until
don’t until
知识点3:so that引导目的状语从句
核心含义:为了、以便
从句类型:目的状语从句,表主句动作的目的
关键规则:从句常加情态动词(can/could/may等)
同义替换:in order that(语气更正式,用法一致)
so that 例句精讲
1.He practices English every day so that he can speak it well.
(他每天练英语,为了能说好英语。)
2.We took umbrellas so that we wouldn’t get wet.
(我们带了伞,以免被淋湿。)
3.She writes down notes so that she may not forget.
(她记笔记,为了不忘记。)
so that 与 so 的区别
so that:连词,引导从句,表目的,后接句子
so:连词,表结果,连接两个简单句
例句1(目的):I study hard so that I can get good grades.
例句2(结果):I studied hard, so I got good grades.
so that 小试牛刀(单句填空)
用so that填空,补全情态动词
1.She gets up early _______ she _______ catch the first bus.
2.We read more books _______ we _______ know more about the world.
3.He saved money ____________ he _______ buy a new computer.
so that can
so that can
so that could
知识点4:if引导条件状语从句
核心含义:如果
从句类型:条件状语从句,表主句动作的条件
核心时态:主将从现——主句将来时,从句一般现在时
位置:句首(加逗号)/句中(无逗号),陈述语序
if 主将从现规则详解
主句:will/shall/can/may + 动词原形
从句:一般现在时(三单注意动词变化)
例句1:If you run fast, you will catch the bus.
例句2:You can pass the test if you study hard.
if 特殊情况(主情从现/主祈从现)
主情从现:主句含情态动词(can/must/should)
例:If you finish homework, you can watch TV.
主祈从现:主句为祈使句
例:If you see her, tell her to call me back.
从句仍用一般现在时,遵循“从现”原则
if 小试牛刀(单句填空)
用所给动词的适当形式填空
1.If it _______ (rain) tomorrow, we ___________ (stay) at home.
2.You ___________ (be) late if you _______ (not) hurry up.
3.If he _______ (call) me, I ____________ (answer) at once.
rains
will stay
will be
don’t
calls
will answer
四大状语从句对比表(上)
连词 从句类型 核心含义 关键规则
although 让步状语从句 虽然、尽管 不与but连用
until 时间状语从句 直到……为止 肯+延续/否+not...until
so that 目的状语从句 为了、以便 从句常加情态动词
if 条件状语从句 如果 主将/情/祈从现
四大状语从句对比表(下)
连词 时态要求 位置特点 例句
although 与主句时态一致 句首/句中 Although it’s cold, we go out.
until 主从句时态一致 句首/句中 I wait until you come.
so that 从句含情态动词 主句后 I study so that I can succeed.
if 从句一般现在时 句首/句中 If you try, you will win.
易混连词辨析(一)
although vs but:不可连用,表转折只选其一
until vs till:till多用于口语,用法与until完全一致
例句:Although he is busy, he helps me.(√)
例句:He is busy, but he helps me.(√)
易混连词辨析(二)
so that vs in order that:同义,in order that可句首
if vs whether:if表“如果”(条件);whether表“是否”
例句:In order that he can win, he practices hard.(√)
例句:I don’t know whether he will come.(√)
专项练习一:用所给连词填空(10题)
请用although/until/so that/if填空,每词可重复
1._______ you help me, I will finish the work quickly.
2.He didn’t go to school _______ he felt better.
3._________ the bag is heavy, she carries it by herself.
4.We study hard ____________ we can enter a good middle school.
5.Wait for me _______ I come back from the shop.
If
until
Although
so that
until
6._______ you don’t eat breakfast, you will feel hungry.
7.She sings loudly ___________ everyone can hear her.
8.__________ he is only 10, he can cook by himself.
9.I will keep walking _______ I find the right way.
10.You can’t play games _______ you finish your homework.
so that
If
Although
until
until
专项练习二:单项选择(10题)
从A/B/C/D中选出最佳答案
1._______ she is young, she has a lot of knowledge.
A. If B. Although C. Until D. So that
2.I will keep trying _______ I achieve my dream.
A. until B. if C. although D. so that
3.They bought a car _______ they can travel around the country.
A. until B. if C. so that D. although
4._______ you exercise every day, you will be healthy.
A. Although B. Until C. So that D. If
B
A
C
D
5.He didn’t eat anything _______ he finished his work.
A. if B. until C. although D. so that
6._______ it is very hot, we still play sports outside.
A. If B. So that C. Although D. Until
7.I take a notebook _______ I can write down important things.
A. so that B. if C. until D. although
8._______ you don’t follow the rules, you will be punished.
A. Although B. If C. Until D. So that
9.We will wait here _______ the teacher comes.
A. so that B. if C. until D. although
10._______ he has no money, he is very happy.
A. If B. Until C. So that D. Although
B
C
A
B
C
D
专项练习三:句型转换(5题)
按要求改写句子,每空一词
1.He is very hungry, but he doesn’t have anything to eat.(用although改写)
_______ _______ is very hungry, he doesn’t have anything to eat.
2.I will go shopping after I finish my housework.(用until改写)
I _______ _______ shopping _______ I finish my housework.
3.She learns Chinese hard. She wants to talk with Chinese friends.(用so that合并)
She learns Chinese hard _______ _______ she can talk with Chinese friends.
4.You will get good grades. You listen to the teacher carefully.(用if合并)
_______ _______ listen to the teacher carefully, you will get good grades.
5.Although he is tired, he still helps his mom do housework.(改为同义句)
He is tired, _______ he still helps his mom do housework.
Although he
won’t go until
so that
If you
but
专项练习四:语篇填空(8题)
用although/until/so that/if填空,使语篇通顺
How to Learn English Well
English is important for us all. 1. _______ you want to learn it well, you need to do more practice. 2. ________ it is a little difficult at first, don’t give up. You can read English every morning 3. __________ you can improve your pronunciation. You can also make pen pals 4. __________ you can practice writing. Keep speaking English every day 5. _______ you are very good at it. 6. _______ you meet new words, write them down in a notebook. 7. __________ it takes a lot of time, your English will be better and better. 8. __________ you can master English, keep practicing every day!
If
Although
so that
so that
until
If
Although
So that
专项练习五:动词形式填空(6题)
结合if/so that等连词,用所给动词适当形式填空
1.If you ________ (practice) speaking English, you ___________ (improve) it quickly.
2.She _______ (get) up early every morning so that she _______ (not) be late for school.
3.If it ___________ (not) snow tomorrow, we ___________ (go) skiing.
4.He __________ (wait) for you until you _______ (come) back.
5.If you _______ (read) more books, you ___________ (know) more things.
6.They _______ (study) hard so that they ___________ (pass) the exam.
practice
will improve
gets
won’t
doesn’t snow
will go
will wait
come
read
will know
study
can pass
语法知识梳理(一)
四类状语从句各有核心功能,连词是判断关键
although表让步,牢记“无but”原则
until分肯否,对应延续/短暂性动词
so that表目的,从句必含情态动词
if表条件,“从现”原则是核心
语法知识梳理(二)
所有从句均用陈述语序,位置灵活
连词可置于句首(加逗号)或句中(无逗号)
时态搭配需精准,避免时态混用
语篇中需结合语境判断连词类型
句型转换核心:保留原意,替换连词/调整句式
课堂小结
1.掌握了4个连词的核心用法和规则
2.能区分四类状语从句的类型和功能
3.学会了不同题型的解题思路和技巧
4.需注意易混点和句式规范(如不连用but、主将从现)
5.多练习、多分析语境,提升综合运用能力
教学课件
Unit 3 语法专项——连词引导的状语从句
Thank you for listening!
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