教案課件是我們教師工作的一部分，教案課件里的內(nèi)容是由教師自己改進(jìn)的。詳實(shí)的教學(xué)教案有助于教師記錄學(xué)生的學(xué)習(xí)進(jìn)度。您可能需要“高中if從句教案”，這是我們整理的，方便您以后閱讀，請(qǐng)收藏本文！
高中if從句教案 篇1
主語狀語置于主句尾，賓語從句之前。
主語謂語動(dòng)詞（包括非謂語動(dòng)詞）與賓語從句之間有插入語。
一個(gè)動(dòng)詞帶有兩個(gè)或兩個(gè)以上賓語從句時(shí)，第一個(gè)that可以省略，第二個(gè)that不可以省略。
賓語從句中的主語是this,that或those,these做主語的定語。
賓語從句是雙賓語中的直接賓語。
賓語從句的主語是非謂語動(dòng)詞或主語從句。
主語中的謂語動(dòng)詞是固定詞組。
賓語從句有it做其先行詞。
直接引語中，轉(zhuǎn)述分句把賓語從句隔開。
主句的謂語動(dòng)詞是think,believe,imagine,suppose,consider,expect,fancy,guess等，并且主句的主語是第一人稱而且為一般現(xiàn)在時(shí)，從句的否定詞一般要轉(zhuǎn)移到主句上來，其反義疑問句一般與賓語從句一致.
如果賓語從句中有某個(gè)含有否定意義的形容詞或副詞，其反義疑問句要用肯定形式.我們通常稱為否定前移。
當(dāng)主句為現(xiàn)在時(shí)或?qū)頃r(shí),賓語從句的時(shí)態(tài)一般不受主句的時(shí)態(tài)所影響.
⑤當(dāng)賓語從句的引導(dǎo)詞是who,which,what,when,where,how,why等表疑問時(shí)，不能按正常語序安排，經(jīng)常將這類引導(dǎo)詞置于句首
無論任何時(shí)候都為陳述語序.但也有部分口語提問例外 E.G:What's the matter?What's wrong with you?
高中if從句教案 篇2
高中定語從句課件
在高中英語的學(xué)習(xí)中，定語從句是一個(gè)非常重要的知識(shí)點(diǎn)。它不僅在閱讀理解和聽力理解中經(jīng)常出現(xiàn)，而且在寫作中也是必不可少的。因此，學(xué)好定語從句對(duì)我們來說是非常有必要的。
什么是定語從句？
定語從句是指一個(gè)句子作為另一個(gè)句子的修飾語，用來對(duì)另一個(gè)句子中的某個(gè)名詞或代詞進(jìn)行修飾，并對(duì)該名詞或代詞進(jìn)行補(bǔ)充說明。定語從句通常由關(guān)系代詞或關(guān)系副詞引導(dǎo)，關(guān)系代詞常見的有who, whom, which, that，關(guān)系副詞常見的有when、where、why等。
如何使用定語從句？
在使用定語從句時(shí)，需要注意以下幾點(diǎn)：
1.關(guān)系代詞的選擇
在選擇關(guān)系代詞時(shí)，需要根據(jù)其在定語從句中的功能進(jìn)行選擇。一般情況下，who指人，which指物，that既可以指人也可以指物。而whom通常只用來指人，并且在非正式場(chǎng)合下已經(jīng)被who所取代。
2.關(guān)系詞的位置
關(guān)系詞在定語從句中通常出現(xiàn)在從句的開頭或結(jié)尾，如果關(guān)系詞出現(xiàn)在中間，則需要用關(guān)系副詞來引導(dǎo)定語從句。
3.定語從句的位置
定語從句通常緊跟在被修飾的名詞或代詞之后，但是在從句過長或者句子復(fù)雜的情況下，也可以將定語從句放在句子的末尾，這種情況下需要使用逗號(hào)將定語從句與主句隔開。
定語從句的練習(xí)
學(xué)習(xí)定語從句最好的方法就是通過大量的練習(xí)來掌握。下面是一些定語從句的練習(xí)題，希望大家能夠認(rèn)真做題，掌握定語從句的使用方法。
1. The girl ______ I met yesterday was very friendly.
A. whom B. who C. which D. that
2. The teacher _______ we talked about is very strict.
A. who B. whom C. which D. that
3. The book ________ cover is red is mine.
A. who B. whom C. which D. that
4. The place ________ we stayed last night was very comfortable.
A. who B. whom C. which D. that
5. The reason _________ I’m late is that I missed the bus.
A. when B. where C. why D. whom
以上就是關(guān)于高中定語從句的一些簡(jiǎn)介，如果想更好地掌握定語從句，需要不斷的練習(xí)，并且注意細(xì)節(jié)。希望大家能夠在學(xué)習(xí)中取得好成績(jī)。
高中if從句教案 篇3
高中英語賓語從句課件
賓語從句(object clauses)
1、概述用作賓語的從句叫做賓語從句。賓語從句的位置與陳述句基本結(jié)構(gòu)中的賓語相同。賓語從句可作謂語動(dòng)詞的賓語，也可以作介詞和非謂語動(dòng)詞（動(dòng)詞不定式、動(dòng)名詞、分詞）和某些形容詞的賓語。賓語從句可以由從屬連詞that whether、if，關(guān)系代詞what, who, whose, which和關(guān)系副詞when、where、how、why等引導(dǎo)。
He said he wanted to go to town.他說他想去城里。
I hope you'll be better soon.我希望你能很快好起來。
I’m so glad that you were able to come to this party.你能設(shè)法抽空出席這個(gè)交際會(huì)，我很高興。
I know nothing about it except what I have read in the papers.除了在報(bào)上讀到的以外,我對(duì)這件事一無所知。
Most of the Chinese people usually go to work on the bike except when it rains.除了雨天,大多數(shù)中國人一般都騎自行車上班。
He asked me whether she was coming.他問我，她來還是不來。
2、作動(dòng)詞賓語
（1）由從屬連詞that引導(dǎo)的賓語從句。that引導(dǎo)賓語從句時(shí)，只起引導(dǎo)詞作用，在句中不做成分，在口語和非正式文體中常省去。
I think (that) he'll be right in a few days.我認(rèn)為他幾天后就會(huì)好的。
I wish（that）she would understand me.我希望她理解我。
（2）由關(guān)系代詞what, who, whose, which引導(dǎo)的賓語從句，在句中作成分，即主語、賓語、表語和定語，關(guān)系代詞在句中不能省略。
A computer can only do what you have instructed it to do．計(jì)算機(jī)只能按人的指令去做。
Do you know whom they are waiting for?你知道他們?cè)诘日l嗎？
He asked whose dictionary it was.他問這是誰的字典。
He can't tell which method they will use for the experiment.他不能斷定他們會(huì)用哪一種方法做實(shí)驗(yàn)。
（3）關(guān)系副詞when，where，how，why等引導(dǎo)賓語從句。關(guān)系副詞when，where，how，why既有疑問意義，又起連接作用，而且在賓語從句中充當(dāng)各種狀語，分別表時(shí)間、地點(diǎn)、方式、原因。在句中不能省略。
Please tell me when we shall discuss our plan.請(qǐng)告訴我我們將何時(shí)討論計(jì)劃。
I don't know where we are going to have the meeting.我不知道我們將在哪里開會(huì)。
Will you tell me how I can get to the station？你能告訴我如何能到車站嗎？
Do you know why he said that?你知道他為什么說那件事嗎？
I remember when this used to be a quiet village．我記得這里曾經(jīng)是一個(gè)僻靜的村莊。
（4）由從屬連詞whether或if引導(dǎo)的賓語從句。
I wonder whether (if) daughters are valued as much as sons in the countryside.我想知道在農(nóng)村女兒是否和兒子一樣受到重視。
I don't know whether (if) you are willing to help me.我不知道你是否愿意幫我。注意：whether和if的區(qū)別，請(qǐng)參考概述部分。（5）動(dòng)詞+間接賓語+賓語從句。動(dòng)詞如：advise, ask, inform, promise, question, remind, show, teach, tell, warn等，賓語從句前可以有一個(gè)間接賓語，這個(gè)賓語有時(shí)可以省略，有的不能省略。
He has informed me when they are to discuss my proposal.他已經(jīng)通知我們將什么時(shí)候討論我的建議。(me不可省略)
She promised (us) that she would give us more help later on.她答應(yīng)以后給我們更多的幫助。(us可省略)
3、作介詞賓語
It depends on whether he is coming or not.這要看他是否會(huì)來。
I was curious as to what we could do next.我想知道下一步我們?cè)撟鍪裁?。注意：that引導(dǎo)的賓語從句只在in, but, except, besides等少數(shù)介詞后作賓語，形成固定搭配，in that在于（因?yàn)椋琤ut that要不是(只是)，except that除了……。
The higher income tax is harmful in that it may discourage people from trying to earn more.所得稅過高是有害的，因?yàn)樗赡苁谷瞬辉付噘嶅X。
His paper is perfect except that there were some misprints.除了一些印刷錯(cuò)誤之外，這篇論文很好。
4、作形容詞賓語。
No one can be sure what man will look like in a million years．誰也不知道一百萬年后人類會(huì)變成什么樣子。
I am not certain whether I have met him before.我不能肯定從前是否見過他。
I'm sorry (that) you're ill.你病了，我很難過。注意：that引導(dǎo)的從句在下列形容詞后面作賓語，that可以省略。anxious, aware, certain, confident, convinced, determined, glad, proud, surprised, worried, sorry, thankful, ashamed, disappointed, annoyed, pleased, hurt, satisfied, content, proud等。
I'm sure (that) he'll help you.我確信他會(huì)幫助你。
I'm glad (that)he has passed the exam.我很高興，他考試及格了。
5、it充當(dāng)形式賓語，真正的賓語---賓語從句后置。正如我們常用it充當(dāng)形式主語代替主語從句一樣，我們也常用it用作形式賓語代替賓語從句，把真正的賓語從句后置。特別是帶復(fù)合賓語的句子中。在這種結(jié)構(gòu)中that不可省略。有下列幾種情況：（1）在believe, consider, declare, estimate, fancy, feel, find, guess,hear, imagine, know, make, prove, reckon, think, understand等動(dòng)詞接復(fù)合賓語（賓語＋賓補(bǔ)）時(shí)，要用it作形式賓語。
We find it difficult that we should finish the work on time．我發(fā)現(xiàn)我們按時(shí)完成工作有困難。
She thinks it wrong that he didn't answer the phone．她認(rèn)為他不接電話是不對(duì)的。
（2）在like，enjoy，love,hate,take等表“喜怒哀樂”的動(dòng)詞，后若要跟賓語從句時(shí)，需跟形式賓語it。
I hate it when people talk with their mouths full.我不喜歡人們滿口飯說話。
I like it that everyone passed the exam．都通過了考試我很喜歡。
（3）由動(dòng)詞和介詞構(gòu)成的短語動(dòng)詞后接that賓語從句時(shí)，要用形式賓語。
We are thinking of it that we'll lend you some money．我正在考慮借給你錢的事。
I shall see to it that he is taken good care of when you are absent.你不在的時(shí)候我負(fù)責(zé)把他照顧好。（4）用于“動(dòng)詞+賓語+介詞短語”的句型中。
Keep it in mind that you have to be home by ten o’clock.要記住你得十點(diǎn)鐘之前回家。
We took it for granted that he would come.我們認(rèn)為他來是當(dāng)然的'。
6、不可直接跟that從句的動(dòng)詞。下列動(dòng)詞不可直接接that從句：ask, refuse, let, like, cause, force, condemn, admire, entreat, dislike（厭惡）, overlook, love, help, take, forgive, bid, hate, hear（聽見）, see（看見）, want（想要）等，但可用it, the fact做媒介，后接that從句；或接動(dòng)名詞、不定式。
He overlooked it that he had made another mistake.(正確)他忽視了一件事，他又犯了一個(gè)錯(cuò)誤。
He overlooked the fact that he had made another mistake. (正確)
He overlooked that he had made another mistake.(錯(cuò)誤)
I admire it that they won the match. (正確)
I admire the fact that they won the match. (正確)我很羨慕，他們贏得了比賽。
I admire that they won the match. (錯(cuò)誤)
7、that引導(dǎo)賓語從句的省略。（1）主句謂語動(dòng)詞是agree, argue, hold, learn, maintain, observe, contend, conceive, reckon, remark, state, suggest, assume, announce, calculate, indicate等時(shí)，其后賓語從句的引導(dǎo)詞that一般不可省略；主句謂語動(dòng)詞是hear, know, say, see, confess consider, declare, understand, propose等時(shí)，其后賓語從句的引導(dǎo)詞that可以省略，也可以不省略；主句謂語動(dòng)詞是think, suppose, believe, presume, dare say等時(shí)，其后賓語從句的引導(dǎo)詞that可以省略。
He suggested that we should set off at 8 o’clock tomorrow morning.他建議我們明天早晨8點(diǎn)走。(that不可省略)
I think (that) this is very important.我認(rèn)為這很重要。(that可省略)（2）當(dāng)一個(gè)句子很復(fù)雜，句中有多個(gè)狀語時(shí)，that不可省略；或者一個(gè)句子有多個(gè)并列的賓語從句時(shí)，特別第一個(gè)賓語從句特別長，后面的賓語從句的that不可省略；謂語動(dòng)詞與that從句之間有插入語時(shí)，that不可省去。
He said you needn't worry and that he would help you .他說你沒有必要著急，他會(huì)幫助你的。（said之后可省去that，但第二個(gè)that不可省去）
We decide, as he has suggested, that we will start out tomorrow.就像他建議的那樣，我們決定明天動(dòng)身。
8、否定轉(zhuǎn)移與省略（1）如果主句的謂語動(dòng)詞是“think, consider, suppose, believe, expect, fancy, guess, reckon, imagine等，主語是第一人稱的一般現(xiàn)在時(shí)態(tài)，其后的賓語從句如含有否定意義，一定要把否定詞一道主句謂語上，從句謂語動(dòng)詞用肯定形式。
I don’t think he can do it better than me.我想他不會(huì)比我干得好。
I don’t believe he treated the child like that.我相信他不會(huì)那樣對(duì)待孩子的。
（2）如果think, consider, suppose, believe, expect, fancy, guess, reckon, imagine等前有副詞或表示強(qiáng)調(diào)的do, does, did；或者同其它詞構(gòu)成并列謂語；或者不以現(xiàn)在時(shí)出現(xiàn)；或者用作插入語中。這時(shí)候不用否定轉(zhuǎn)移。
I really expect she didn’t say that to him.我確實(shí)希望她不和他說那件事。
I think and hope that he won’t be deceived by the man.我認(rèn)為也希望他不會(huì)被那個(gè)人欺騙。
（3）think, consider, suppose, believe, expect, fancy, guess, reckon, imagine等此類動(dòng)詞后，在簡(jiǎn)略答語中，用so替代前文肯定的賓語從句；若替代一個(gè)否定的賓語從句，用not或not…so替代前文整個(gè)從句。
-I believe we've met somewhere before．我認(rèn)為我們從前在哪見過。
-No，I don't think so．沒有，我認(rèn)為我們以前沒見過。
-Do you think it's going to rain over the weekend？你認(rèn)為這周末會(huì)下雨嗎？
-I believe not．我認(rèn)為不會(huì)。注意：hope只能說I hope not一種形式，因?yàn)閔ope不能否定轉(zhuǎn)移。
9、時(shí)態(tài)的呼應(yīng)與語序。
在賓語從句中只能用陳述句語序，時(shí)態(tài)呼應(yīng)上要遵循以下三條原則：（1）如果主句謂語是一般現(xiàn)在時(shí)或?qū)頃r(shí)，賓語從句的謂語可根據(jù)意思的需要使用任何一種時(shí)態(tài)。
Can you make sure where Alice has put the gold ring？你能確定愛麗絲把金戒指放到什么地方了嗎？
They have no idea at all where he has gone．他們一點(diǎn)也不知道他去了哪。
Do you know who he was talking with at eight last night？你知道他昨晚和誰一起說話嗎？
（2）如果主句謂語是一般過去時(shí)，賓語從句要用表示過去的某一時(shí)態(tài)。
He said he would come to see us the next day.他說他明天將來看我們。
I wanted to know whether he had been to Beijing.我想知道他是否去過北京。
（3）如果賓語從句是表示客觀事實(shí)、真理等，不管主句是什么時(shí)態(tài)，賓語從句一律用一般現(xiàn)在時(shí)。
Dick asked Lucy how old she is．迪克問露斯她多大了。
The teacher said the sun rises in the east．老師說太陽從東方升起。
要點(diǎn)
一、高中賓語從句要點(diǎn)之時(shí)態(tài)的呼應(yīng)
1.如果主句是一般現(xiàn)在時(shí)、一般將來時(shí)或祈使句時(shí),賓語從句可根據(jù)情況使用各種時(shí)態(tài)。例如:
I hear she is here today(she was here yesterday/ she will be here tomorrow.)
2.如果主句是一般過去時(shí),賓語從句應(yīng)使用過去時(shí)態(tài)的某種形式。例如:
He said he was watching TV(he had swept the floor/ he would play football after school)。
3.如賓語從句所敘述的是客觀事實(shí)、自然現(xiàn)象或科學(xué)真理等,從句不受主句時(shí)態(tài)限制,仍用一般現(xiàn)在時(shí)。例如:
Our teacher told us that light travels faster than sound.
二、高中賓語從句要點(diǎn)之引導(dǎo)詞的使用
1.當(dāng)賓語從句由陳述句變化而來時(shí),用that來引導(dǎo)從句,that常無具體意義,一般可省略。例如:
Lin Tao thought(that)the TV play was very boring.
2.當(dāng)賓語從句是由一般疑問句變化而來時(shí),要用if或whether來引導(dǎo)從句。例如:
David asked his mother if/ whether she liked the dinner last night.
3.當(dāng)賓語從句是由特殊疑問句變化而來時(shí),原句中的疑問詞充當(dāng)連接代詞(如who, whose, what, which)或連接副詞(如when, where, why, how),引導(dǎo)賓語從句。例如:
Do you know what we can do on the island?
I don’t know why Jane was late for school this morning.
三、高中賓語從句要點(diǎn)之語序的陳述化
賓語從句一般要用陳述句語序。例如:
When did he leave? I want to know. →I want to know when he left.
Does the shop close at six every day? Do you know? →Do you know if/ whether the shop closes at six every day?
四、高中賓語從句要點(diǎn)之否定轉(zhuǎn)移
當(dāng)主句的謂語動(dòng)詞為think, believe, suppose等動(dòng)詞,且主語為第一人稱時(shí),從句的否定要轉(zhuǎn)移到主句上。例如:
I don’t believe he is here on time, is he?
I don’t think Tom is the best student in his class, is he?
高中if從句教案 篇4
標(biāo)題：高中定語從句課件
隨著高中英語課堂教學(xué)的不斷深入，定語從句作為一種重要的語法現(xiàn)象也逐漸受到了廣泛的關(guān)注。雖然定語從句的學(xué)習(xí)需要學(xué)生具備比較全面的英語語法基礎(chǔ)，但是它的語言功能非常強(qiáng)大，可以讓學(xué)生更加準(zhǔn)確地表達(dá)語言意義，同時(shí)也可以更好地厘清句子結(jié)構(gòu)和語言邏輯關(guān)系。因此，高中定語從句課件的開發(fā)和應(yīng)用也逐漸成為了高中英語教學(xué)的一種重要手段和方法。
一、高中定語從句課件的內(nèi)容
高中定語從句課件的內(nèi)容通常包括以下幾個(gè)方面：
1、高中定語從句的定義和基本語法特征，例如：定語從句的定義、定語從句和主句的關(guān)系、定語從句的引導(dǎo)詞、定語從句的種類等。通過這些基本知識(shí)的系統(tǒng)化介紹，學(xué)生可以掌握定語從句的基本概念和語言特征，為后續(xù)的深入學(xué)習(xí)打下堅(jiān)實(shí)的基礎(chǔ)。
2、高中定語從句的使用方法和技巧，例如：定語從句的使用范圍、定語從句的位置和形式、避免定語從句的重復(fù)或不必要等。通過這些使用方法和技巧的介紹，學(xué)生可以更加靈活地運(yùn)用定語從句，讓語言表達(dá)更加精準(zhǔn)和自然。
3、高中定語從句的應(yīng)用實(shí)例和習(xí)題分析，例如：文獻(xiàn)摘要、科技論文摘要、報(bào)告、信函、演講、口試、作文等。通過這些具體的實(shí)例和習(xí)題訓(xùn)練，學(xué)生可以更加深入地了解定語從句的應(yīng)用場(chǎng)景，更加熟練地應(yīng)用定語從句來表達(dá)語言意義。
二、高中定語從句課件的優(yōu)點(diǎn)
高中定語從句課件具有以下幾個(gè)優(yōu)點(diǎn)：
1、互動(dòng)性強(qiáng)。高中定語從句課件的設(shè)計(jì)通常以互動(dòng)為主，通過多種互動(dòng)方式來吸引學(xué)生的注意力和參與度。例如：課堂討論、小組討論、學(xué)生演示、仿寫練習(xí)、在線測(cè)試等，從而讓學(xué)生更加積極地參與到教學(xué)過程中來。
2、內(nèi)容豐富。高中定語從句課件的內(nèi)容涵蓋了定語從句的定義、基本語法特征、使用方法和技巧、應(yīng)用實(shí)例和習(xí)題分析等方面，可以更加全面地幫助學(xué)生掌握定語從句的相關(guān)知識(shí)和技能。
3、形式靈活。高中定語從句課件的形式靈活多樣，例如：PPT演示、網(wǎng)絡(luò)視頻、在線教學(xué)平臺(tái)等，學(xué)生可以根據(jù)自己的喜好和需求來選擇最適合的學(xué)習(xí)方式。
三、高中定語從句課件的應(yīng)用
高中定語從句課件的應(yīng)用主要包括以下幾個(gè)方面：
1、課堂教學(xué)。高中定語從句課件可以作為教師課堂教學(xué)的重要輔助工具，通過形象直觀的演示和互動(dòng)討論，幫助學(xué)生更加深入地掌握定語從句的知識(shí)和技能。
2、網(wǎng)絡(luò)教學(xué)。高中定語從句課件可以通過網(wǎng)絡(luò)教學(xué)平臺(tái)進(jìn)行在線教學(xué)，讓學(xué)生可以隨時(shí)隨地進(jìn)行學(xué)習(xí)，同時(shí)也可以通過在線互動(dòng)進(jìn)行知識(shí)分享和交流。
3、自主學(xué)習(xí)。高中定語從句課件設(shè)計(jì)了各種形式的在線測(cè)試和練習(xí)，可以幫助學(xué)生獨(dú)立進(jìn)行學(xué)習(xí)和測(cè)試，提高自主學(xué)習(xí)的能力和效率。
總之，高中定語從句課件是一種非常重要的教學(xué)工具，在高中英語教學(xué)中具有非常廣泛的應(yīng)用和推廣前景。通過定語從句教學(xué)的深化和完善，可以幫助學(xué)生更加全面地掌握英語語言知識(shí)和應(yīng)用能力，同時(shí)也可以提高學(xué)生的語言交際能力和語言鑒賞能力，為學(xué)生未來的學(xué)習(xí)和發(fā)展打下堅(jiān)實(shí)的基礎(chǔ)。
高中if從句教案 篇5
教學(xué)過程
1、對(duì)上節(jié)課課后作業(yè)中的問題進(jìn)行查漏補(bǔ)缺；
2、導(dǎo)入：
e.g. She is a beautiful girl.
She is a beautiful girl who drives me crazy.
1、定語從句：在復(fù)合句中，修飾某個(gè)名詞或代詞的句子（做這個(gè)名詞或代詞的
定語）叫定語從句，定語從句一般放在被修飾的名詞或代詞后面。
關(guān)系代詞的種類：
關(guān)系代詞：that, which, who, whom, whose, as
a、There she saw a wall of water that was quickly advancing towards her.
b、 In Japan, someone who sees another person making the gesture will think it means money.
c、Visitors can go on exciting rides where they can feel what it is like to do the things they have seen their heroes do in the movie.
d、Oprah Winfrey is a black woman whose rise to fame is an inspiring story.
限定性定語從句：從句對(duì)先行詞進(jìn)行必要的描述或說明，對(duì)先行詞起修飾限定作用，從句與先行詞緊密相連，缺少它則句義顯得不完整，一般不用逗號(hào)隔開。 非限定性定語從句：對(duì)先行詞進(jìn)行補(bǔ)充說明，解釋，它與先行詞關(guān)系松散，用逗號(hào)隔開。
1、The man who gave me this book is Tom .(限定性)
2、Tom,who is reading a book ,is my classmate (非限定性)
1、who指人，在定語從句中作主語。
e.g. The man who is sitting under the tree is a German .
2、Whom指人，在句中做賓語，可省略，但在做介詞的賓語是只能用whom,不能用who。關(guān)系代詞前有介詞時(shí)不能省略。
e.g. I know the girl (whom) the teacher is speaking to .
I know the girl to whom the teacher is speaking .
e.g. Everyone heplps the child whose parents are dead.
Theyare the lazy students whose homework wasn’t handed in .
4、that 指人或物，多指物，作主語（不能省略）或賓語（可省略）
e.g. He is the finest comrade that has helped us .
This is a plant that grows in the north .
5、which ,指物，在句中做主語（不能省略），或賓語（可省略）。
e.g. This is a plant which grows in the north .
1、當(dāng)先行詞是all, everything, anything, nothing, much, little, none, one等不定代詞時(shí)，只用that。
Pay attention to everything that I do.
2、當(dāng)先行詞被序數(shù)詞或形容詞最高級(jí)修飾時(shí)，只用that。
This is the best novel (that)I have read.
3、如果出現(xiàn)兩個(gè)或兩個(gè)以上的先行詞，并同時(shí)兼指人和物時(shí)，關(guān)系代詞用that。 歌訣助記：兩項(xiàng)并列人與物，引導(dǎo)定從用that。
They were talking about the person and things that they remembered in school.
4、當(dāng)先行詞被the only, the last, the way, the same等修飾時(shí)。
This is the last time that I shall give you a lesson.
5、在疑問詞which開頭的特殊疑問句中，為了避免重復(fù)只用that。
Which of the students that knows something about history.
6、當(dāng)被修飾的成分是數(shù)詞時(shí)，（被修飾成分是代名詞one，指人時(shí)除外）只用that. I’ve got one that you might be interested in.
1、引導(dǎo)非限制性定語從句。
Football, which is an interesting game, is played all over the world.
全世界都踢足球，它是一項(xiàng)有趣的運(yùn)動(dòng)。
2、直接放在介詞后作賓語時(shí)（介詞+關(guān)系代詞結(jié)構(gòu)中）。
Language is the most important tool without which people can't communicate with each other.語言是最重要的工具，沒有它，人們便無法交流。
（1）在定語從句中作狀語，先行詞主要為一些時(shí)間名詞（year ,day ,time,week等）,但時(shí)間名詞在從句中作主語，賓語時(shí)，應(yīng)用that，which，不能用when
e.g. I’ll never forget the time when (during which ) we worked on the farm.作狀語 I still remember the day that/which is his birthay.做主語
He regretted the days that /which he spent on play . 做賓語
（2）It is the first time that …句型中，that是習(xí)慣用法，不用when。
e.g. It is the first time that I have been to the Great Wall .
（1）指前面的地點(diǎn)，在從句中作狀語。
e.g. I know the factory where I worked twenty years ago .
（2）指地點(diǎn)，在句中作主語，賓語時(shí)不能用where，須用that/which .
e.g. This is the house where he has lived for 20 years （作狀語）.
This is the house that he has lived in for 20 years .（作賓語）
e.g. This is the shool ｛in which /where we study every year.（作狀語）
This is the shool that /which we visited yesterday. （作賓語） .
“the reason why ….that…. ”中，不能用because 代替that .
e.g. That’s the reason why (for which ) he didn’t come to school .
The reason why he didn’t attend the meeting is that he was ill .
但reason 在從句中做賓語時(shí)，關(guān)系代詞用that/which ,可省略
e.g. I don’t believe the reason (which/that) he gave me .
當(dāng)先行詞在定語從句中作介詞的賓語時(shí)，往往可以把介詞放在關(guān)系代詞之前，構(gòu)成“介詞+關(guān)系代詞（whom/which）”結(jié)構(gòu)。但一些短語如look after 等中的介詞不能與動(dòng)詞分開，故不能放在關(guān)心代詞之前。確定介詞時(shí)：
一是，依據(jù)定語從句中動(dòng)詞所需要的某種習(xí)慣搭配；
二是，依據(jù)先行詞的某種習(xí)慣搭配；
三是，根據(jù)所要表達(dá)的意思來確定。
e.g. That’s the reason why (for which ) he didn’t come to school .
關(guān)系代詞在非限定性定語從句中的用法。
指人做主語用who,作賓語用whom ，指地點(diǎn)用where，指時(shí)間when，指物只用which，不能用that，作定語用whose。
e.g. He didn’t see the film, which was very interesting .(不用that)
such ….as： 像….一樣的，像…..之類；the same…as： 和…..同樣的
在這兩個(gè)句型中，as是關(guān)系代詞，such和same 作定語，修飾主語里的某個(gè)名詞（或代詞），這個(gè)名詞是由as引導(dǎo)的定語從句的先行詞，as在從句中可擔(dān)任主語、賓語或表語。
Eg： We have found such materials as are used in their factory.( 在從句中作主語) I seldom give my students such a difficult problem as they cannot work out.（在從句中作賓語）
The result is not the same as they had expected.( 在從句中作賓語)
重點(diǎn)比較 :
the same …as…和 the same …that…
兩者都引導(dǎo)定語從句。as 從句中說明的名詞與the same 修飾的名詞是同一類，而非同一個(gè)。that從句中說明的名詞與the same 修飾的名詞是同一個(gè)。
Eg：He is reading the same book that you bought yesterday.
He is reading the same book as you bought yesterday.
This is the same pen that I lost. =This is the pen that I lost.(指同一支筆)
This is the same (kind/type/sort) of pen as I lost.（指同類型的筆，但并不是我丟失的那一支）
….such as …中的such為代詞，意思是“這樣的人或物”，as 在從句中作賓語，修飾先行詞such。
Eg： This book is not such as I expect.
He told me of his experience such as I had never had before.
相關(guān)鏈接：
such as 還有“諸如，例如，像…那樣的”的意思，此時(shí)后面跟名詞或名詞短語等。
Eg：They bought a lot of fruit, such as apples,oranges,etc.
as 可以像which一樣引導(dǎo)非限制性定語從句，用來代表整個(gè)句子的內(nèi)容，它的先行詞可以是名詞，也可以是不定式短語或整個(gè)句子。as 在從句中作主語、賓語和表語。此外，有些as 引導(dǎo)的定語從句已成為固定用法，如：
As we know As has been said before 如上所述 As is known to all As is often the case 像通常那樣 As is reported As was expected 正如預(yù)料的`那樣 Eg： She is very careful, as her work shows.
As we know, smoking is harmful to one’s health.
As is often the case, we have worked out the production plan.
重點(diǎn)比較：as 和which 引導(dǎo)的非限制性定語從句的聯(lián)系和區(qū)別
1、as 和which 都可以代替整個(gè)句子，當(dāng)定語從句置于主句之后時(shí)，as和which可以和互換。
Eg：He didn’t tell me any news, as/which upset me.
2、Which引導(dǎo)的從句，代表的前面的整個(gè)主句時(shí)，不能放在主句之前。而as 引導(dǎo)的定語從句，代表整個(gè)主句時(shí)，可以放在主句之前或之后，有時(shí)也可以放在主語和謂語之間。
Eg：As is reported in the newspapers, talks between the two countries are making progress.
= Talks between the two countries, as is reported in the newspapers, are making progress.
As 引導(dǎo)的定語從句表示它的內(nèi)容與主句所講的內(nèi)容相似，即指同類事物；that 引導(dǎo)定語從句表示的內(nèi)容與主句相同，即為同一事物。
e.g. This is the same pen that I lost yesterday .這正是我昨天丟的鋼筆。
This is the same pen as I lost yesterday .這正像我昨天丟的鋼筆。
1、同位語從句和定語從句結(jié)構(gòu)相似，通常位于某一名詞或代詞之后，但兩者存在明顯區(qū)別：同為語從句對(duì)名詞性成分加以補(bǔ)充說明，是該名詞性成分具體內(nèi)容的體現(xiàn)（相當(dāng)于名詞的作用）。That 引導(dǎo)的同位語從句中引導(dǎo)詞that不在該同位語從句中充當(dāng)成分，但不能被省略，同位語從句還可以用whether,how等連詞引導(dǎo)（定語從句則不能）。定語從句對(duì)先行詞加以限制或修飾，說明先行詞的性質(zhì)或特征（相當(dāng)于一個(gè)形容詞的作用），定語從句的引導(dǎo)詞均在該定語從句中充當(dāng)成分（that在其引導(dǎo)的限定性定語從句中充當(dāng)主語，賓語或表語，充當(dāng)定語從句的賓語，that可以省略）注意體會(huì)一下三組例句。
① We can’t solve the problem how we can travel faster than light .我們解決不
了如何才能超過光的速度這個(gè)問題。
② I can’t remember the problem that they have.我記不得他們的問題了。
① I won’t believe the fact that he lied to his mother.我不愿相信他對(duì)他母親撒
② I won’t believe the fact (that) he told me .我不愿相信他告訴我的事實(shí)。
① The news that Tom would go abroad is told by him. 湯姆將出國的消息是他
講的。
The news that he told me is that Tom would go abroad next year.他告訴我的消息是湯姆來年將出國。
例題1.【全國卷I】The prize will go to the writer ________ story shows the most imagination.
A. that B. which C. whose D. what
【解析】C。句意為“獎(jiǎng)項(xiàng)將會(huì)頒發(fā)給故事展示了豐富想象力的作者?！?根據(jù)從句不缺成分和它與先行詞的關(guān)系可判斷前后為所屬關(guān)系，選whose作定語。
例題2.〖10全國Ⅱ〗I refuse to accept the blame for something ________was someone else’s fault.
【解析】B。從句缺主語，先行詞為物。
例題3.【2011江蘇卷】Between the two parts of the concert is an interval, _______the audience can buy ice-cream.
A. when B. where C. that D. which
【解析】A。從句不缺任何成分，且先行詞為時(shí)間。
例題4.〖08浙江〗Y(jié)esterday she sold her car, ______ she bought a month ago.
A. when B. where C. that D. which
【解析】D。從句缺賓語，且為非限制性定語從句。
例題5. (陜西)______ is often the case with children, Amy was better by the time the doctor arrived.
【解析】D。固定搭配“as is often the case”，像通常一樣。
例題6. (浙江卷)Ellen was a painter of birds and of nature, _____, for some reason, had withdrawn from all human society.
A. which B. who C. where D. whom
1.The place _______interested me most was the Children's Palace.
A. Which B. where C. what D. in which
2.Do you know the man _______?
A. whom I spoke B. to who spoke C. I spoke to D. that I spoke
3.This is the hotel _______last month.
A. which they stayed B. at that they stayed
C. where they stayed at D. where they stayed
4.Do you know the year ______the Chinese Communist Party was founded?
A. which B. that C. when D. on which
5.That is the day ______I'll never forget.
A. which B. on which C. in which D. when
6.The factory ______we'll visit next week is not far from here.
A. where B. to which C. which D. in which
7.Great changes have taken place in the factory ____we are working since then.
A. where B. that C. which D. there
8.This is one of the best films _______.
A. that have been shown this year B. that have shown
C. that has been shown this year D. that you talked
9.Can you lend me the book ______the other day?
A. about which you talked B. which you talked
C. about that you talked D. that you talked
10.The pen ______he is writing is mine.
A.with which B.in which C.on which D.by which
本節(jié)課的知識(shí)點(diǎn)相對(duì)比較多但難度系數(shù)不大，主要是講定語從句的各個(gè)關(guān)系詞具體用法。主要從九個(gè)方面進(jìn)行講解，詳細(xì)講解了定語從句中各個(gè)關(guān)系代詞、關(guān)系副詞的用法和區(qū)別。本部分的學(xué)習(xí)還是要求學(xué)生掌握關(guān)鍵詞，具體什么時(shí)候需要使用關(guān)系代詞或者關(guān)系副詞，什么叫做定語從句，希望學(xué)生能夠保持思路清晰，做題的時(shí)候十拿九穩(wěn)。
1. Nearly all the streets are in straight lines, ________ from east to west. Those ________ run from north to south are called avenues.
A. running; that B. run; who C. running; who D. run; that
2. This is the case ________ he’s had all his money stolen.
A. when B. where C. that D. on which
3. Mr. Smith will pay a visit to Beijing this autumn, ________ we will enjoy the Olympic Games in .
A. where B. when C. which D. how
4. The artist will not paint people or animals but he will paint anything ________ .
A. that the little girl asks him B. the little girl asks him to
C. for the little girl to ask him D. what the little girl asks him
5. —How did you get in touch with the travel agent, Robin?
—Oh, that's easy. I surfed the Internet and then called one ________ the telephone number is provided.
A. which B. in which C. of which D. whose
6. October 15 th is my birthday, ________ I will never forget.
A. when B. that C. what D. which
7. The treatment will continue until the patient reaches the point ________ he can walk correctly and safely.
A. when B. where C. which D. whose
8. There are several research centers in China ________ a certain disease called Bird Flu is being studied.
A. which B. where C. when D. what
9. I hope that the little ________ I have been able to do does good to them all.
A. which B. what C. that D. when
10. The time is not far away ________ modern communications will become widespread in China's vast countryside.
A. as B. when C. until D. before
這節(jié)課總體感覺課堂進(jìn)程比較自然、順利，學(xué)生始終處在主動(dòng)參與和積極配合的狀態(tài)中，達(dá)到了預(yù)期設(shè)想，體現(xiàn)了“學(xué)中用，用中學(xué)”的任務(wù)型語言教學(xué)理念。定語從句是中學(xué)英語教學(xué)的一個(gè)重要語法項(xiàng)目。學(xué)生在學(xué)習(xí)這一語法時(shí)，雖然感到困難很大，但理清語法知識(shí)點(diǎn)之后也覺得定語從句語法知識(shí)結(jié)構(gòu)清晰并易于理解。希望學(xué)生課后能主動(dòng)鞏固并復(fù)習(xí)，同時(shí)加強(qiáng)單詞記憶。
高中if從句教案 篇6
高中 if 從句教案
if 條件語句是英語中最基本的語法結(jié)構(gòu)之一，也是我們學(xué)習(xí)英語時(shí)首先要掌握的知識(shí)點(diǎn)之一。if 從句分為三種類型：零條件從句，一般條件從句和虛擬條件從句。在高中學(xué)習(xí)中，if 從句不僅是英語語法中的基礎(chǔ)知識(shí)，更是各個(gè)考試的重要考點(diǎn)。因此，掌握好 if 從句將對(duì)學(xué)英語及應(yīng)對(duì)考試都將有很大的幫助。
I. 零條件從句
1. 定義
“零條件從句”又稱“真實(shí)條件句”，表示現(xiàn)實(shí)中某件事情發(fā)生。即如果某一條件滿足，就會(huì)出現(xiàn)某種情況或行動(dòng)。
2. 例句
If you heat ice, it melts.
如果你加熱冰，它就會(huì)融化。
3. 用法
（1）句子的兩個(gè)部分之間用“，”分隔，if 句放在主句前面；
（2）從句和主句的時(shí)態(tài)，我們通常都使用現(xiàn)在時(shí)。
4. 練習(xí)
（1）上面的句子轉(zhuǎn)換成否定句和疑問句。
If you don’t heat ice, it won’t melt.
如果你不加熱冰，它就不會(huì)融化。
Do you melt ice if you heat it?
如果你加熱冰，它會(huì)融化嗎？
（2）根據(jù)下列句子完成 if 從句。
1. The sun rises in the east.
If ___________________________________________________
2. The year has four seasons.
If ___________________________________________________
3. People need air to breathe.
If ___________________________________________________
4. Water boils at 100℃.
If ___________________________________________________
II. 一般條件從句
1. 定義
一般條件從句表示的是可能會(huì)發(fā)生的情況，一般使用“if+動(dòng)詞的一般時(shí)”來表示，且主句用將來時(shí)態(tài)。
2. 例句
If it rains tomorrow, we will stay at home.
如果明天下雨，我們就呆在家里。
3. 用法
（1）主句用將來時(shí)態(tài)，if從句用一般現(xiàn)在時(shí)。
（2）在 if 從句中可使用情態(tài)動(dòng)詞 should, can, may, might 等代替 will。
（3）在 if 從句中，還可以使用 be going to + 動(dòng)詞原形來表示未來的計(jì)劃或決定。
4. 練習(xí)
（1）將下列句子改成一般條件從句：
1. I will go to see a movie if I am free tonight.
_______________________________________________________
2. He will finish his homework if he works hard.
_______________________________________________________
（2）用 if 從句的適當(dāng)形式來完成下列句子。
1. There is a party next weekend.
If _______________________________________________________
2. You have to study if you want to pass the exam.
If _______________________________________________________
3. We should wear warm clothes if it gets cold.
If _______________________________________________________
III. 虛擬條件從句
1. 定義
虛擬條件從句分為三種：
- 虛擬條件句–過去式
- 虛擬條件句–將來時(shí)態(tài)
- 虛擬條件句–過去完成時(shí)態(tài)
虛擬條件從句表示的是某種不可能或未實(shí)現(xiàn)的情況或條件，而不是真實(shí)的情況或條件。其語氣比較委婉，前兩種類型虛擬條件從句用來表示現(xiàn)在或未來的情況，第三種用來表示過去可能不會(huì)發(fā)生的情況。
2. 例句
If I had known the answer, I would have told you.
如果我知道答案，我會(huì)告訴你。
3. 用法
（1）虛擬條件句-過去式：
if從句要用過去完成式，主句要用“would/could/should/might + have + 過去分詞”來表示對(duì)過去情況的虛擬推測(cè)。
如果if從句的主語是第一人稱（I/we），并且表示對(duì)過去事情的惋惜、遺憾，或者后面跟有“but”表示實(shí)際情況與現(xiàn)在不符，可以使用“if only”來代替“if”，此時(shí)主句仍然要用 “would/could/should/might + have + 過去分詞”。
（2）虛擬條件句–將來時(shí)態(tài)：
如果if從句中的動(dòng)詞是動(dòng)詞的過去分詞（had gone, had left, had finished等），但表示的卻是未來的情況，主句則要用：“would/could/should/might + 動(dòng)詞原形”。這種情況多用于假設(shè)現(xiàn)在是過去的某一時(shí)刻，其后的情況和結(jié)果都是虛擬的。
4. 練習(xí)
（1）將下列句子改寫成虛擬條件從句。
1. I can’t help you because I have a meeting now.
If _________________________________________________________
2. We didn’t take the subway and we missed the train.
If _________________________________________________________
（2）請(qǐng)根據(jù)下列情況，完成虛擬條件從句。
1. Tom didn’t win the game.
If _________________________________________________________
2. If Jack had studied harder, he would have gone to college.
If _________________________________________________________
3. We can’t see the sun today because it is cloudy.
If _________________________________________________________
結(jié)論
if 從句是英語語法中的基礎(chǔ)知識(shí)，在高中學(xué)習(xí)中占據(jù)著重要的地位，可以通過針對(duì)性的練習(xí)鞏固或增強(qiáng)students的記憶，達(dá)到提高英語水平的目的。反復(fù)練習(xí)以上例句和IELTS/TOEFL通過歷年真題with if 從句的題，可幫助students掌握不同類型的 if 從句。
高中if從句教案 篇7
語序?yàn)関.+主語+謂語+由if、whether引導(dǎo)賓語從句；
連接賓語從句的從屬連詞主要有that,if,whether，和疑問詞（what， how， where， when ...)。
that引導(dǎo)表示陳述句的賓語從句，
if和whether，whether...or not引導(dǎo)表示“是否”的一般疑問句的賓語從句。
連接代詞主要有who,whom,whose,what,whoever,whomever,whosever,whatever,whichever等。
連接代詞一般指疑問，但what,whatever除了指疑問外，也可以指陳述。
連接副詞主要有when,where,why,how,whenever,wherever,however等。
例句：
He didn’t tell me when we should meet again.
他沒有告訴我什么時(shí)候我們能再見面。
大多數(shù)及物動(dòng)詞都可以帶賓語從句。
部分“動(dòng)詞+副詞”結(jié)構(gòu)也可以帶賓語從句。
動(dòng)詞短語也可以帶賓語從句，常見的這些詞有：
make sure（確保）、make up one’s mind（下決心）、keep in mind（牢記）
①動(dòng)詞find,feel,consider,make,believe,think等后面有賓語補(bǔ)足語的時(shí)候，則需要用it做形式賓語而將that賓語從句后置。
②有些動(dòng)詞帶賓語從句時(shí)需要在賓語從句前加it（雙賓語）這類動(dòng)詞主要有：hate,take,owe,have,see to.award,lend.hand,mail,offer,pass,pay,post,read,return,show,teach,tell
用whether之類的介詞賓語從句。
用that,if引導(dǎo)的介詞賓語從句，有時(shí)候except,but,besides三個(gè)介詞后可見到that引導(dǎo)的賓語從句。
有些形容詞具有動(dòng)詞的含義，所以也可以帶一個(gè)賓語從句；
例句：
I am sorry I am late.
I am glad that you can join us.
Are you sure his answer is right?
常用來引導(dǎo)賓語從句的形容詞有：sure,certain,glad,pleased,happy,sorry,afraid,satisfied,surprised
if和whether在作“是否”理解時(shí)，引導(dǎo)賓語從句常放在動(dòng)詞know,ask,care,wonder,find out等之后，介詞后一般不用if。
少數(shù)動(dòng)詞，如：leave,put,discuss,doubt后的賓語從句常用whether。
whether后可以加or not,但是if不可以。
在不定式前只能用whether。
一般“no matter”后表示“是否”用whether而不用if。
存在以下情況時(shí)引導(dǎo)詞that不可省略：
that作learn,suggest,explain,agree,wonder,prove,mean,state,feel,hold等動(dòng)詞的賓語。
高中教學(xué)計(jì)劃小編推薦各科教學(xué)設(shè)計(jì)：
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