让步状语从句课件PPT

这是一份人教版 (2019)必修 第一册本册综合教课内容ppt课件，共17页。PPT课件主要包含了普通句子，easy，文艺句子，important，超文艺句子等内容，欢迎下载使用。
Very imprtant
① 两个词同义，一般情况下可以互换使用，如： He didn’t light the fire thugh / althugh it was cld.② althugh 比thugh 较正式，语气较重，常用于强调让步概念，如： He insisted n ding it althugh I warned him nt t.③ thugh可以和even 连用，但althugh 不可以，如： Althugh (Even thugh) the traffic held us up, we gt t the airprt n time.④ 当让步状语从句是指一种假设的情况，不指事实时，通常用thugh，而不用althugh，如：Thugh all the wrld were against me, I shall still hld t my pinin.⑤ thugh可以在非正式文体中用作连接性状语，而althugh 则不行。（thugh 可以放在句中或句末，通常用逗号隔开），如： He said he wuld cme; he didn’t, thugh.
1．althugh 和thugh 引导的让步状语从句：
⑥ thugh引导的从句可用倒装语序（即把从句中的表语或状语等放在thugh之前），而althugh 不能这样用，如： Yung thugh she is, yet she is fit fr the jb. (= Yung as she is, …)⑦ 有时可用副词yet, still, nevertheless (但不能用连词but) 来配合连接词thugh或althugh，以加强语气，如： Thugh he is ver seventy, yet / still / nevertheless he can ride the bike.⑧ thugh和althugh后面的主语和谓语动词be 可以省略，如果这个主语和主句中的主语指同一个人或物时，如： Thugh (it was) cld, it was a fine winter mrning. Thugh (they were) very tired, they cntinued t march n.
① even if 与 even thugh同义，常用于强调让步概念，如： I’ll d it, even if it takes me all the afternn. Even if yu fail, yu can try again.注：if 有时也可以用于让步含义，但要注意条件if 与让步if 的区别，试比较： If he is pr, hw can he buy the huse? (条件) If he is pr, he is at least hnest. (让步) (= even if) If Jhn had been there, I wuld have seen him. (条件) If Jhn was there, I didn’t see him. (让步) (= even if)
2．even if, even thugh和 if 引导的让步状语从句：
3.由as, that, thugh引导的特殊让步状语从句结构：
在正式文体或文学作品中，为了强调让步的含义，可用as引导让步从句。但as一般不置于句首，而将从句中的表语或状语置于句首。（thugh, that与as一样，也可以用于这种结构），如下面几种情况：① 表语的倒装： Tired as he was, he still went n with his wrk. Difficult thugh the task was, they managed t accmplish it in time.② 状语的倒装：（这时不可在状语之前加very, much等修饰语） Much as he likes the bike, he desn’t want t buy it. Hard as I studied, I culd nt catch up with them.③ 谓语动词的倒装： Try as he wuld, he culd nt remember a wrd f it. (= N matter hw he wuld try …) Search as they wuld, they culd find nthing in the rm.
注意事项：① 如果是单数名词或形容词最高级作表语，不再用冠词，如： Yungest as he is in ur class, he speaks English the best.② as从句可以置于主句前、主句中或句后，当as从句置于句首时，主句前可加yet ，如： Rich as he is, (yet) I dn’t envy him.③ 当作表语的形容词提前时，如果从句的主语是人称代词，那么它只能放在动词之前(半倒装)；如果从句的主语是名词，则可用倒装语序(全部倒装) ，也可用陈述语序，如： Clever thugh / as yu may be, yu can’t d that. Tired as were the wrkers, they did nt stp.④ as 从句与主句在时态上可以不一致，如： Child as he is, he was brave.⑤ 注意区别as 引导的原因从句与让步从句，试比较： Lawyer as he is, he explains the reasn clearly. (原因从句) Lawyer as he is, he can’t explain the reasn very clearly. (让步从句)
4．even thugh和 thugh
even thugh (= even if) 引导的从句指把握不大或假设的事情，意为“即使”、“纵然”； thugh 引导的从句指事实，意为“尽管”、“虽然”，例如： He will nt reveal the secret, even thugh he knws it. (可能知道，也可能不知道。) He will nt reveal the secret thugh he knws it. (虽然知道，却不说出来。)
5．while引导的让步状语从句：
while (= althugh),它引导的让步状语从句只能前置，位于句首，如： While yu may be right, I can’t altgether agree. 注意比较下列各句： While I understand what yu say, I can’t agree with yu. (让步) While I was reading, the light went ut. (时间) Mtin is abslute while stagnatin is relative. (转折、对比) He is lazy, while his brther is diligent. (转折、对比)
6.whether…r…(是…还是…)引导的让步状语从句：
△ 这种从句也称“选择条件-让步状语从句”，可位于主句之前或之后，如： Whether yu like it r nt, yu’ll have t d it. She had t g, whether r nt she wanted it.
7．由连接代词whever, whmever, whatever, whichever引导的让步状语从句：
Whever (= n matter wh) is unwilling t g, I will g.(whever 既相当于连接词短语n matter 连接主句与从句，又相当于疑问代词wh)Whatever (= n matter what) happens, keep calm.
8.由连接形容词whatever 或whichever 引导的让步状语从句，如：
Whatever (= n matter what) difficulties may arise, we must and can vercme them ne by ne. (whatever 既相当于n matter 连接主句与从句，又相当于疑问形容词what 修饰名词difficulties.) Whichever (= n matter which) rm is assigned t him, he will have n bjectin.
9.由连接副词hwever, wherever 或whenever 引导的让步状语从句.
Hwever ( = n matter hw) difficult the task may be, we will fulfil it n time. ( hwever 既相当于 n matter 连接主句与从句，又相当于疑问副词 hw 修饰 difficult。)
10．注意以上几种结构的省略形式：
Hwever difficult the task (may be), it will be fulfilled n time. Hwever great the difficulties (may be), we will never retreat. Whatever the difficulties (may be), they must and can be vercme
11．由whenever, wherever 引导的从句，同时也分别是时间状语从句和地点状语从句，这里作为让步状语从句来看待，是强调它们带有n matter when, n matter where 的含义。在口语中用n matter +wh- 结构比较常见。例如：
N matter when and hw the invaders cme, they will be wiped ut clean. Dn’t believe the rumur, n matter wh repeats it. (可置于主句之后) It desn’t matter (= N matter) what he may say, I am ging.（口语中常用）
涉及让步状语从句的五类倒装
一、（表语）名词+as / thugh+主语+动词. Child as he is, he knws t help ther. Teacher thugh he is, he can’t knw everything. 【说明】其中的动词通常为连系动词，也就是说位于句首的名词是其后连系动词的表语。另外，要特别注意位于句首的名词前习惯上不用冠词，即使其前有形容词修饰也不用冠词。
二、(表语)形容词+as / thugh+主语+动词 Successful as he is, he is nt prud. 【说明】其中的动词也通常为连系动词，也就是说位于句首的形容词是其后连系动词的表语。
三、（状语）副词+as / thugh+主语+动词 Much as I like Paris, I culdn’t live there. Hard thugh they tried, they culdn’t make her change her mind.
四、动词原形+as / thugh+主语+动词 Try as he might, he culdn’t slve the prblem. Search as they wuld, they wuld find nbdy in the huse. 【说明】主语后的动词通常为may, might, wuld, did 等情态动词或助动词(若表示情态意义，则选用情态动词；若陈述事实，则用did, d 等助动词)。
五、分词+as / thugh+主语+动词 Raining hard as it is, I’m ging ut fr a walk. Surrunded as we were by the enemy, we managed t march frward.