【正文】 k it for granted ___ they were not really don39。如： I wonder whether or not he has arrived at the don’t know whetherif I can e or ，則多用if，而不用whether。如： We discussed whether we should close the 、表語從句、同位語從句時都用whether，不用if。易混點 whether與if（不做考查）二者都可以作“是否”講，能引導(dǎo)名詞性從句，都不能省略。而no matter +疑問詞只能引導(dǎo)讓步狀語從句。而what、who、when、where則是特指。That was why he fell ：what、whatever、who、whoever等引導(dǎo)的名詞性從句 我們可以通過與定語從句的轉(zhuǎn)化知道兩組在意義上的差別。本句型意為：這就是。的緣故。本句型意為：這是因為。本句型意為：這就是。本句型的意思是：理由是：。易混點二：reason后面的名詞性從句reason做主語時，后面的表語從句表示原因是要用that引導(dǎo)，一般不用because或why，而用it，this或that做主語時，后面的表語從句可用because或why引導(dǎo)。如： I still remember the day when I first came to “on the day”它沒有疑問詞“什么時候”的意義，因此是定語從句。 have no idea when he will be fact that he had not said anything surprised 易混點一 ：同位語從句與定語從句的區(qū)別that引導(dǎo)的從句，是定語從句還是同位語從句，我們我們采用“試加 法”，來判斷。（四）同位語從句。4當(dāng)that偶爾作except和in的賓語時。 hope(that)everything is all :以下情況that不可省略：(不考查）。如： What I want to do is(that)I can go up to him and thank （三）賓語從句賓語從句在復(fù)合句中作賓語。疑問詞引導(dǎo)的： question was who could go : 引導(dǎo)表語從句的連接詞that一般不可省去。 he suddenly fell ill last week made us surprised.（二）表語從句表語從句的句型及要點。 will go is not 、用it作形式主語，主語從句放在句末。根據(jù)句義，如果連接代詞與連接副詞，whether、if 和as if都用不上時，才用that作連接詞（that本身無任何含義）。注意：連接代詞與連接副詞在句中不再是疑問句，因而從句中謂語不用疑問式。連接詞：that, whether, if, as if。連接副詞：when, where, why, how。一．引導(dǎo)名詞性從句的連接詞連接代詞：who, whose, whom, what, which。It is necessary that a college student ________ at least a foreign language．（上海1993）A．masters B．should master C．mastered D．will master 6．What引導(dǎo)名詞從句的特殊含義:What was once regarded as impossible has now bee a reality．(what為“所……的事”，相當(dāng)于“the thing that．．．；all that．．．；everything that．．．”)After ________ seemed a very long time，I opened my eye and found myself in bed．A．what B．when C．that D．whichHe is not what he was a few years ago． Who is it that has made Fred what he is now？ What is now the North Sahara Desert was once a civilized world． Our ine is now double what it was ten years ago第三篇：名詞性從句名詞性從句名詞性從句相當(dāng)于名詞，可分別作主句的主語、表語、賓語和同位語。The suggestion that the mayor(should)present the prizes was accepted by everyone． is（was）＋形容詞＋that從句中要用虛擬語氣，即（should ＋）動詞原形，表示建議或不滿、驚奇等情緒。What he wanted to see was an end to all the armies of the world． What I bought were three English books． suggest , order , demand , propose , mand , request , insist, desire, require, advise 等表示要求、命令、建議、決定等意義的動詞后，that從句常用“（should）+ 動詞原形”的結(jié)構(gòu)I suggest we(should)set off at is ＋過去分詞＋that的主語從句中 decided，demanded，desired，insisted，ordered，proposed，suggested，remended，requested，required等。We don39。t doubt that your proposition is doubt whether I know 。t imagine ____ when they received these nice Christmas presents．（94上海）A．how they were excited B．how excited they were C．how excited were they D．they were how excited doubt 用在疑問句或否定句時，其后賓語從句常用 that 作連接詞；用在肯定句時，連接詞用 whether 或 if 皆可，而不用 that。s going to be a big problem ． —Yes，it could be．—I wonder ____ we can do about it．（2002春季北京、安徽、內(nèi)蒙古）A．if B．how C．what puter can only do ____ you have instructed it to do．（NMET2001）A．how B．a(chǎn)fter C．what D．when Tommy was reluctant to tell the schoolmaster____ he had done the day before． A．that B．how C．where D．what wild flowers are so special that I would do ____ I can to save them（2000春季北京、安徽）A．whatever B．that C．which D．whichever ____ cake you like and leave the others for ____ es in late．（2000春季上海）A．a(chǎn)ny；who B．every；whoever C．whichever；whoever D．either；whoever is generally considered unwise to give a child ____ he or she wants．（NMET97）A．however B．whatever C．whichever D．whenever hopes to bee a friend of ____shares her interests．（95上海）A．a(chǎn)nyone B．whom ever C．whoever D．no matter who學(xué)習(xí)名詞性從句時要注意以下幾點：，疑問句要用陳述句的語序。賓語從句可以作及物動詞的賓詞，介詞的賓語，某些形容詞的賓語以及非謂語動詞的賓語。whether D、It。that B、It。 news that he had landed on the moon spread all over the have no idea when he will be thought came to him that Mary had probably fallen must answer the question whether he agrees to it or ：that作為關(guān)系代詞，可以引導(dǎo)定語從句，充當(dāng)句子成分，在從句中作賓語時可以省略； that引導(dǎo)同位語從句時，起連詞的作用，沒有實際意義，不充當(dāng)句子成分，一般不能省略。s how 三，同位語從句：定義：在復(fù)合句中，用作同位語的從句稱為同位語從句。s why C．There39。s____ you left it．（MET92）A．there B．where C．there where D．where there had neither a raincoat nor an umbrella．____I got wet all through．（98上海）A．It39。 problem is that millions of people die of illnesses caused by question remains whether we can win the ’s just what I is where our problem difficulty is how I can help smokers kick their ：，連接代詞和連接副詞引導(dǎo)以外，還可以由as, as if ,as were not as they looks as if it is going to 、另外還要注意以下常用的兩種結(jié)構(gòu)：The reason why…is that …(而不用 because。ll go camping tomorrow depends on the weather．（NMET96）A．If B．Whether C．That D．Where6． ____ he said at the meeting astonished everybody present．（MET93）A．What B．That C．The fact D．The matter 二, 表語從句：定義：一個從句在復(fù)合句中作主句的表語，這個從句就叫作表語從句。t understand was _____fewer and fewer students showed interests in her lessons．（2000上海）A．What；why B．That；what C．What；because D．Why；that3． ____has helped to save the drowning girl is worth praising．（99上海）A．Who B．The one C．Anyone D．Whoever4． ____ we can39。 doesn’t matter whether he likes or ’s said that the highway will be open to traffic next it likely that it will snow in the afternoon? 練習(xí)：1． ____ you don39。關(guān)于形式主語 it: 以 it 作形式主語，把主語從句后置的常用句型有：（1）It + be + 形容詞 + that/wh從句It is quite clear that Tom was fond of music.（2）It + be + 名詞 + that/wh從句It is a pity that she has made such a foolish / shame / honor / question等。一、主語從句：定義：一個從句在復(fù)合句中作主句的主語，這個從句就叫主語從句。連接副詞where, when, why, how。從屬連詞that, if, whether。試比較下面兩個例句:I had no idea that you were here．（that引導(dǎo)同位語從句，不能省略）Have you got the idea（that）this book gives you of life ？（that引導(dǎo)定語從句，作賓語，可以省略）第二篇：名詞性從句講解名詞性從句與高考試題名詞性從句的界定與分類：名詞性從句相當(dāng)于名詞，可分別作主句中的主語、表語、賓語和同位語。I have no idea when he will e back 。同位語從句通常由that引導(dǎo)，可用于同位語從句的名詞有advice、demand、doubt、fact、hope、idea、information、message、news、order、problem、promise、question、request、suggestion、truth、wish、word等。需要注意的，當(dāng)主語是reason時，表語從句要用that引導(dǎo)而不是because。That is why he didn’t e to the 。其基本結(jié)構(gòu)為：主語 + 系動詞 + that從句。在句中作表語的從句叫表