【正文】 appens 等不及物動(dòng)詞 + that/wh從句 It happened that I didn’t take any money with ，主語(yǔ)從句一般不能放在句首。二、主語(yǔ)從句的表現(xiàn)形式： ： the country should build a nuclear power station is something we must light travels in straight line is known to ： we need is more book you choose doesn’t matter to es will be ： the plane is to take off hasn’t been announced ． he has been is still a much water is flowing can be measured 、關(guān)于形式主語(yǔ) it主語(yǔ)從句放在句首往往顯得頭重腳輕，不太平衡，因此，在大多數(shù)情況下都是在主語(yǔ)的位置上用一個(gè)形式主語(yǔ) it，而把主語(yǔ)從句移到句未去。其中, 從屬連詞只起連接作用, 在從句中不充當(dāng)任何句法成分，而連接代詞和連接副詞既起連接作用, 。連接代詞who, whoever, whom, whomever, which, whichever, what, whatever, whose。因此，名詞性從句可分為主語(yǔ)從句、表語(yǔ)從句、賓語(yǔ)從句和同位語(yǔ)從句。同位語(yǔ)從句和定語(yǔ)從句的區(qū)別：that作為關(guān)系代詞，可以引導(dǎo)定語(yǔ)從句，充當(dāng)句子成分，在從句中作賓語(yǔ)時(shí)可以省略； that引導(dǎo)同位語(yǔ)從句時(shí)，起連詞的作用，沒(méi)有實(shí)際意義，不充當(dāng)句子成分，一般不能省略。例如： The news that we won the game is 。例如： The reason why he was late was that he missed the train by one minute this morning 同位語(yǔ)從句說(shuō)明其前面的名詞的具體內(nèi)容。It looks as if it is going to 。The fact is that we have lost the 。引導(dǎo)表語(yǔ)從句的關(guān)聯(lián)詞與引導(dǎo)主語(yǔ)從句的關(guān)聯(lián)詞大致一樣，表語(yǔ)從句位于連系動(dòng)詞后，有時(shí)用as if引導(dǎo)。I don’t believe he will do 。即將從句中的否定形式移到主句中。I know(that)he will study English next year.（從句用一般將來(lái)時(shí)）當(dāng)主句動(dòng)詞是過(guò)去時(shí)態(tài)（could, would除外），從句則要用相應(yīng)的過(guò)去時(shí)態(tài)，如一般過(guò)去時(shí)，過(guò)去進(jìn)行時(shí)，過(guò)去將來(lái)時(shí)等；當(dāng)從句表示的是客觀真理，科學(xué)原理，自然現(xiàn)象，則從句仍用現(xiàn)在時(shí)態(tài)。Everything depends on whether we have enough 。其主語(yǔ)和謂語(yǔ)的順序也不能顛倒，仍保持陳述句語(yǔ)序。She always thinks of how she can work 。whom, which, whose, what, when, where, why, how, whoever, whatever, whichever等關(guān)聯(lián)詞引導(dǎo)的賓語(yǔ)從句相當(dāng)于特殊疑問(wèn)句，應(yīng)注意句子語(yǔ)序要用陳述語(yǔ)序。注意：在demand、order、suggest、insist, desire,等表示要求、命令、建議、等意義的動(dòng)詞后，賓語(yǔ)從句常用“（should）+ 動(dòng)詞原形”。He has told me(that)he will go to Shanghai 。引導(dǎo)賓語(yǔ)從句的關(guān)聯(lián)詞與引導(dǎo)主語(yǔ)從句表語(yǔ)從句的關(guān)聯(lián)詞大致一樣，在句中可以作謂語(yǔ)動(dòng)詞或介詞及非謂語(yǔ)動(dòng)詞的賓語(yǔ)。主語(yǔ)從句后的謂語(yǔ)動(dòng)詞一般用單數(shù)形式。Where the English evening will be held has not yet been ，還沒(méi)有宣布。例如： What he wants to tell us is not ，還不清楚。主語(yǔ)從句通常由從屬連詞that，whether，if和連接代詞what，who，which，whatever，whoever以及連接副詞how，when，where，why等詞引導(dǎo)。因此，這四種從句通稱(chēng)為名詞性從句。它包括主語(yǔ)從句、賓語(yǔ)從句、表語(yǔ)從句和同位語(yǔ)從句。 did I bee a teacher I became a teacher a teacher I became I became a teacher are just what shall I have shall I have I shall have what I shall have looked if it was going to rain as if it was going to rain if was it going to rain if that it was going to rain 39。that。that。what。that。t there that you have done might do harm to other things leaves the room last ought to turn oft the person the 2000 Olympic Games won39。 s e back or 39。m going she will go is up to her to or not or not is strange _____ she have left without saying a is very clear _____ our policy is a correct Mr Zhang said is quite has been decided _____ he will be sent doesn39。ll give you do you need do you need you need do you need want us to know _____ to help can they they can they can can they must put _____ into we have learned we have learned have we learned have we learned she say anything about _____? the work was to be done was the work to be done was the work to be done the work was to be done was never satisfied with she had achieved what she achieved had achieved she achieved photographs will show you does our village look like our village looks like does our village look like our village looks like insisted _____ he pay the that which urged _____ the library open during the wish we could have learned _____ when we were at high you did you had done what you did did you do will describe to you _____ I saw when D./ _____ I should say he is a good 1 know of him I do know of him do I know of him do I know of him will give this dictionary to __ wants to have they will e here hasn39。t know _____ should do next should I do next I should do next I should do next 39。例如：.I have no idea when he will be fact that he had not said anything surprised ：that作為關(guān)系代詞，可以引導(dǎo)定語(yǔ)從句，充當(dāng)句子成分，在從句中作賓語(yǔ)時(shí)可以省略； that引導(dǎo)同位語(yǔ)從句時(shí)，起連詞的作用，沒(méi)有實(shí)際意義，不充當(dāng)句子成分，一般不能省略。The mander ordered that troops(should)set off at 。 depends on whether we have enough don’t know whether to go e to see me if you have ：在demand、order、suggest、decide、insist, desire, request, mand, doubt等表示要求、命令、建議、決定等意義的動(dòng)詞后，賓語(yǔ)從句常用“（should）+ 動(dòng)詞原形”。whether也可引導(dǎo)主語(yǔ)從句、表語(yǔ)從句、同位語(yǔ)從句，還可引導(dǎo)讓步狀語(yǔ)從句，以上均不能換成if。 don’t know whether or not the report is don’t know whether/ if the report is true or not.④介詞后的賓語(yǔ)從句要用whether引導(dǎo)。 wonder if it doesn’t rain.②用if 會(huì)引起誤解，就要用whether。但下面情況不能互換。 hope(that)everything is all 、介詞之后的賓語(yǔ)從句，不可用which或if連接，要分別用what或 whether。 idea is(that)we can get more rades to help in the work.（四）賓語(yǔ)從句賓語(yǔ)從句在復(fù)合句中作賓語(yǔ)。常用句型如下：（1）It + be + 名詞 + that從句It is mon knowledge that? ??是常識(shí)It is a surprise that? 令人驚奇的是??It is a fact that? 事實(shí)是??（2）It + be + 形容詞 + that從句It is necessary that? 有必要??It is important that? 重要的是??It is obvious that? 很明顯??（3）It + be + 動(dòng)詞的過(guò)去分詞 + that從句It is believed that? 人們相信??It is known to all that? 眾所周知??It has been decided that? 已決定??（4）It + 不及物動(dòng)詞 + that 從句 It appears that? 似乎??It happens that? 碰巧??It occurred to me that? 我突然想起??另注意在主語(yǔ)從句中用來(lái)表示驚奇、不相信、惋惜、理應(yīng)如此等語(yǔ)氣時(shí)，謂語(yǔ)動(dòng)詞要用虛擬語(yǔ)氣“(should)+do”，常用的句型有：It is necessary(important, natural, strange, etc.)that ?It is suggested(requested,