2022年中考英语语法复习系列之状语从句(让步状语从句+原因状语从句) 课件(共23张PPT)

(共23张PPT)
语法大讲堂
让步状语从句
让步状语从句
1. 概念
让步状语从句，是指状语从句中的一种，一般翻译为 “尽管....”或 “即使...”，就是我们日常生活中用的 “退一步说...”。
让步状语从句
2. 用法
引导让步状语从句的连词主要有以下这些：
though, although, while, as; even if, even though; whether... or...; no matter +疑问词，疑问词+ever, regardless of +名词/名词短语/名词从句，despite, in spite of.
让步状语从句
1. though, although 表示 “虽然”之意，although 比 though 正式，两者都与yet, still 或never 连用，但不能与but 连用。
例：Although / Though he was tired, (still) he kept on working.
Although he is rich, (yet) he is not happy.
让步状语从句
2. as , though 表示 “虽然...但是”之意。as引导的让步状语从句必须以部分倒装的形式出现，被倒装部分可以是表语、状语或动词原形，though也有相同用法，而although没有。
例：Urgent as/though the message is,it is impossible to send it there in time.
消息很紧急，但不可能及时送到。
Child as/though he was,he faced the dangerous situation calmly.
尽管还是个孩子，但他能冷静地面对危险情况。
让步状语从句
4.Whether...or... / whether (...) or not表示“不论是否......”，“不管是......还是......”之意。由这一个复合连词引导的让步状语从句旨在说明正反两个方面的可能性都不会影响主句的意向或结果。
例 ： Whether you believe it or not,it's true.
无论你是否相信，这都是真的。
I'll marry him whether he is poor orrich.
不管他是穷还是富我都要和他结婚。
让步状语从句
5.While也可以引导让步状语从句，表示“尽管（部分承认......是事实）”，比though/although语气弱。While引导的让步状语从句一般要位于句首。
例：
While she is a likeable girl,she can be extremely difficult to work with.她虽然是一个可爱的姑娘，但有时很难与她共事。
While I understand what you say,I can't agree with you.
虽然我理解你的意思，但我还是不同意。
让步状语从句
6.在英语中，wh-ever类词可作主句的疑问词，可引导让步状语从句。一般没有whyever的用法，这类词在引导让步状语从句时常可换成no matter+相应的wh-词，在引导名词性从句时只能用wh-ever。
例句： Whatever you say,I won't believe you.
=No matter what you say,I won't believe you.）
不论你说什么，我都不会相信。
Whenever I'm unhappy,it is my friend who cheers me up.
=No matter when I'm unhappy,it is my friend who cheers me up.）
不管什么时候我不高兴，总是我的朋友使我振作起来。
"no matter +疑问词" 或"疑问词+后缀ever",“无论…”
例：1.No matter what happens, our parents always stand by our sides.
2.Whatever happens, our parents always stand by our sides.
no matter what = whatever no matter who = whoever
no matter when = whenever no matter where = wherever
no matter which = whichever no matter how = however
原因状语从句
原因状语从句
I was late because it rained heavily just now.
我迟到了，因为刚刚雨下得很大。
定义：由句子充当原因状语
1. 用法
原因状语从句
原因状语从句可置于句首，也可置于句尾。引导原因状语从句的常用词可分为两类：单词引导词和短语引导词。单词引导词主要有because、since、as等；短语引导词主要有now that、seeing that、for the reason that、in that、considering （that）等。
2. 分类
原因状语从句
1.because引导的原因状语从句
表因果关系的语气最强，用来回答以why提问的问句，Because引导的原因状语从句往往比主句显得更重要。例：
He is absent today because he is ill.
因为他生病了，所以今天没来。
2. 分类
原因状语从句
2.since引导的原因状语从句
表示人们已知的事实，不需强调原因，故常译为“既然......”，通常放在句首。Since引导的从句是次要的，重点强调主句的内容。例：
Since you are so sure of it,he'll believe you.
既然你对此这么有把握，他会相信你的。
2. 分类
原因状语从句
3.as引导的原因状语从句
As与since用法差不多，所引出的理由在说话人看来已经很明显，或已为听话人所熟悉，也不须用because加以强调。As引导的从句与主句有同等的地位。例：
We have to delay our journey,as the weather is so bad.
天气太恶劣了，我们要推迟行程。
2. 分类
原因状语从句
4.for引导的原因状语从句
for+分句一般放在句末，陈述推测理由，或是对前面事实（或看法）的补充说明。例：
There must be nobody in the classroom, for the light is off.
教室里一定没有人，因为灯是关着的。
2. 分类
语气上，because > since > as > for
原因状语从句
5.其他连接引导词的原因状语从句
Now that、seeing that、for the reason that、in that、considering （that）等也可引导原因状语从句。
例：Now that they've got to know each other a little better,they get along just fine.
由于彼此间有了进一步的了解，他们相处的不错。
2. 分类
原因状语从句
5.其他连接引导词的原因状语从句
例：Seeing that he is inexperienced,he is not fit for the work.
既然他没有经验，他就不适合这项工作。
I often go to the cinema for the simple reason that I love seeing films.
我经常去电影院，原因很简单，那就是因为我喜欢看电影。
2. 分类
巩固练习
1.Although he stayed only a few days in the villages, ________ he got to know everybody there.
A. and B. but C. yet D. so
2._______ Laura is a little child, she knows a lot of things.
A. Although B. But C.Because D. After
3.The Red Cross is expected to send help ________ there is human suffering.
A. whoever B. however C. whatever D. wherever
4._________ her daughter hadn’t come back, _________she looked worried.
A. Because, / B. Because, so C. Though, but D. Though, /
5. He found it difficult to read, _________ his eyesight was beginning to fail.
A. and B. for C. but D. or
完成句子。
1.虽然他太年轻不能上学，他已经学会了1000个单词了。
____________ he is ____________ ____________ ____________ go to school, he has already learnt 1000 English words.
2.尽管安吉拉一点都没有准备，她一点儿都不紧张，而且在竞赛中还发挥得非常好。
Angela _________ relaxed and did really _________ in the quiz _________ she was not _________.
3.我回来迟到了，因为雨下得很大。
I came back _________ _________the _________rain.
Although too young to
felt well though
ready
because of heavy
谢谢观看！