【正文】 , since, as, now that的區(qū)別 引導(dǎo)的并列句與原因狀語從句的辨析教學(xué)難點(diǎn)：, since, as, now that的區(qū)別 引導(dǎo)的并列句與原因狀語從句的辨析一、課前預(yù)習(xí)：認(rèn)真預(yù)習(xí)《中考零距離—系統(tǒng)復(fù)習(xí)集》P132133有關(guān)原因狀語從句的知識(shí)點(diǎn)，系統(tǒng)了解原因狀語從句的用法。Since/ Now that this method doesn’t work, let]s try , you39。3）because 不能與so連用。every time, each time, the last time, the first time, by the time，（1）都可以用于肯定句，譯為“直到。這時(shí)just …when …正。because, since，as的區(qū)別：結(jié)構(gòu)：n.(無冠詞)/adj./adv./v +as/though +主語＋謂語(時(shí)態(tài))eg：Young as he is, he can read and write in several foreign 目的狀語從句Child as he was, he had to support the family.（表語名詞提前并常省去冠詞）引導(dǎo)詞：so that（以便于）, in order that（以便于，為了），lest（以防）, in caseno matter wh…只用于讓步狀語從句，wh+ever用于讓步狀語從句和名詞性從句,同（以防，萬一）, for fear that（以防，擔(dān)心，害怕），in the hope that（希望能）, for the時(shí)出現(xiàn)用wh+everpurpose that（為了）, to the end that（為了）八 比較狀語從句六 結(jié)果狀語從句常用引導(dǎo)詞：as(同級(jí)比較):as…as..(和…一樣)not as/so as(不如…)引導(dǎo)連詞有so that（以便于）, so….that, such….that…(如此。的方式）。還是。這時(shí)be doing sth when …正在做。分類：按意義可分為時(shí)間、條件、地點(diǎn)、原因、目的、結(jié)果、比較等狀語從句。1）why提問的句子，必須用because回答。4）because+ 從句；because of+ 名詞短語 I missed the train because I got up was angry not because we were late but because we made a didn’t he e yesterday?Because he was 、as“因?yàn)椤?，語氣較弱，一般放在主句前，中間用逗號(hào)隔開，表示的是明顯的原因。）Rather than get money in such a dishonest way, he would beg in the streets.（他寧可沿街乞討，也不愿意用欺騙手段騙取錢。now that 有“時(shí)間”含義，表示”既然”，說明一種新情況；seeing(that)和 considering(that)有“條件”含義；in that 有”某一方面”含義，如：Now that you are well again you can (that)they are just beginners, they are doing quite a good was lucky in that I was able to find a good babysitter（保姆）.結(jié)果從句常用 so that, so...that, such...that, that 等連詞引導(dǎo)，如：I was caught in a shower, so that all my clothes got was so tired that I could hardly keep my eyes was such a good runner that I couldn39。I enjoyed it, though=It was hard work, but I enjoyed ，但是我喜歡干。(though, although不能與 but連用)Whether you believe it or not, it’s ，這是真的。She stood at the door as if(=as though)she were waiting for ，仿佛在等人似的。As/So long as we don’t lose heart, we’ll find a way to overe the ，我們就能找到克服困難的方法。（such是形容詞，后接名詞）The village is so small that it cannot be shown in the ，所以這地圖上沒有。引導(dǎo)目的狀語從句的主要連詞有:that, so that（以便）, in order that（為了）, for fear that（以便）, in case（萬一）等，從句中常常使用一些情態(tài)動(dòng)詞，如：can, could, may, might, should等。You’d better make a mark where you have any questions.(這里where引導(dǎo)的從句不是定語從句)哪有問題，你最好在哪做個(gè)記號(hào)。如： It is just a week since we arrived here.（It is /was… since…是常用句型）我們到這兒剛剛一星期。He had learned English for three years before he went to London.（主句的動(dòng)作發(fā)生在從句的動(dòng)作之前，所以主句用了過去完成時(shí)）他去倫敦之前已學(xué)了三年英語。其連詞有：when（當(dāng)……的時(shí)候）, while（當(dāng)……的時(shí)候）, as（當(dāng)……的時(shí)候）, as soon as（一……就……）, once（一旦……）等。功能角度在整個(gè)主從句中作狀語 3。： with結(jié)構(gòu)屬于獨(dú)立主格結(jié)構(gòu),但在結(jié)構(gòu)上,with結(jié)構(gòu)由介詞with或without引導(dǎo),名詞前有冠詞、形容詞、所有格代詞或其它詞類所修飾,結(jié)構(gòu)較松散；而獨(dú)立主格結(jié)構(gòu)沒有with或without引導(dǎo),結(jié)構(gòu)嚴(yán)密,名詞前可用可不用修飾語。復(fù)合結(jié)構(gòu)中第一部分與第二部分語法上是賓語和賓語補(bǔ)足語關(guān)系,而在邏輯上,卻具有主謂關(guān)系,也就是說,可以用第一部分作主語,第二部分作謂語,構(gòu)成一個(gè)句子。本文就此的構(gòu)成、特點(diǎn)及用法等作一較全面闡述,以幫助同學(xué)們掌握這一重要的語法知識(shí)。If(it is)true, this will casue us a lot of ，這會(huì)給我們帶來很多麻煩。注：as在引導(dǎo)時(shí)間狀語從句時(shí)，沒有這種省略現(xiàn)象。d better not refer to the ，你最好不要查字典。上述狀語從句在省略時(shí)，并非任何成分都可以省略而是遵循下面原則：（1）當(dāng)狀語從句的主語與主句的主語一致時(shí)且從句中含有BE動(dòng)詞的某種形式時(shí)，可以省略狀語從句的主語和系動(dòng)詞be，這時(shí)從句中可出現(xiàn)如下結(jié)構(gòu)：① 連詞（as, as if , once）+ 名詞如：Once(he was)a worker ,Pang Long now bees a famous ，現(xiàn)在變成一位著名的歌手。(時(shí)間)Reading carefully，you39。Not knowing what to do, he went to his parents for ，他去找父母幫忙。He went out，shutting the door behind 。(原因)Reading carefully，he found something he had not known before．他仔細(xì)讀書時(shí)，發(fā)現(xiàn)了一些從前不知道的東西。The window that/which was broken yesterday was…..昨天被打破的玻璃今早被修好了The sold hamburgers are not to my hamburgers sold in this chain are not to…..這家連鎖店賣的漢堡不適合我的口味 The hamburgers that/which are sold in this chain are not to….The arrived guests will be led in.（此過去分詞表示完成）The guests arrived just now will….剛到的客人將會(huì)被帶進(jìn)來 The guests who arrived just now will be….The book that was written by Wang sells book written by Wang sells tie that is worn by our head is made in tie worn by our head is made in SH The shoes(that were)made in a small factory are of bad 反之，一個(gè)定語從句可以轉(zhuǎn)化為分詞做定語的結(jié)構(gòu)The man I introduced to you yesterday had just returned from man introduced to you by me yesterday had just…昨天我給你介紹的那人剛從日本回來He is a man who is loved by He is a man loved by The leaves that have fallen are collected by the fallen leaves are collected…That letter I received last week was from The letter received last week was from Li.【三】狀語從句的省略一般說來省略現(xiàn)象多出現(xiàn)在下列五種狀語從句中：由 when ,while ,as ,before, after , till, until, once等引導(dǎo)的時(shí)間狀語從句；由whether ,if , unless 等引導(dǎo)的條件狀語從句；由 though , although ,even if ,whatever等引導(dǎo)的讓步狀語從句；由 as ,than 等引導(dǎo)的比較狀語從句；由as, as if , as though 等引導(dǎo)的方式狀語從句。如：Unless(it is)necessary ,you39。You should let us know the result as soon as(it is)。Come along with me if(it is).。學(xué)好它對(duì)學(xué)好復(fù)合賓語結(jié)構(gòu)、不定式復(fù)合結(jié)構(gòu)、動(dòng)名詞復(fù)合結(jié)構(gòu)和獨(dú)立主格結(jié)構(gòu)均能起很重要的作用。例如： like eating the mooncakes with space the earth looks like a huge watercovered globe with a few patches of land sticking out above the little boy with two of his front teeth missing ran into the 、with結(jié)構(gòu)的特點(diǎn)+復(fù)合結(jié)構(gòu)構(gòu)成。在一般的with短語中,with后面所跟的不是復(fù)合結(jié)構(gòu),也根本沒有邏輯上的主謂關(guān)系。狀語從句時(shí)間狀語從句地點(diǎn)狀語從句原因狀語從句目的狀語從句條件狀語從句結(jié)果狀語從句讓步狀語從句比較狀語從句方式狀語從句 2?？梢砸龑?dǎo)時(shí)間狀語從句的連詞很多，根據(jù)意義和主從句之間的時(shí)間關(guān)系，又可分類如下：(1)表示同時(shí)性，即主從句的謂語動(dòng)作同時(shí)發(fā)生或幾乎同時(shí)發(fā)生。如：After / When the children had gone to bed, she began to prepare her lessons.（從句的動(dòng)作發(fā)生在主句的動(dòng)作之前，所以從句用了過去完成時(shí)）孩子睡覺了以后她開始備課。（4）表示持續(xù)性或瞬間性，主要連詞有：since（自從）, ever since（自從）, until（直到……才/為止）, till（直到……才/為止）等。Where there is a will, there is a ，事竟成。Considering tha