2.1-狀語從句講解ppt課件

1、 狀語從句講解狀語從句講解 由從句擔(dān)任的狀語，在句子中可修飾由從句擔(dān)任的狀語，在句子中可修飾謂語或其他動詞）、形容詞、副詞或是謂語或其他動詞）、形容詞、副詞或是整個(gè)句子，它可以用來表示時(shí)間、地點(diǎn)、整個(gè)句子，它可以用來表示時(shí)間、地點(diǎn)、原因、目的、結(jié)果、條件、方式、比較、原因、目的、結(jié)果、條件、方式、比較、讓步等。狀語從句是一較大的語法項(xiàng)目，讓步等。狀語從句是一較大的語法項(xiàng)目，也是近幾年高考題中常見的一個(gè)重要試點(diǎn)。也是近幾年高考題中常見的一個(gè)重要試點(diǎn)。高考中已考查了時(shí)間、讓步、地點(diǎn)、條件、高考中已考查了時(shí)間、讓步、地點(diǎn)、條件、目的等狀語從句，這些從句仍是今后高考目的等狀語從句，這些從句仍是今后高考

2、熱點(diǎn)，應(yīng)作充分準(zhǔn)備。同時(shí)對方式狀語從熱點(diǎn)，應(yīng)作充分準(zhǔn)備。同時(shí)對方式狀語從句也應(yīng)引起重視。句也應(yīng)引起重視。 一、時(shí)間狀語從句一、時(shí)間狀語從句 表示時(shí)間的狀語從句可由表示時(shí)間的狀語從句可由whenwhen， asas， whilewhile， wheneverwhenever， afterafter， beforebefore， till till （untiluntil），）， sincesince， onceonce， as soon as as soon as （或（或the the moment moment ），）， by the timeby the time， no sooner t

3、hanno sooner than， hardly hardly （scarcelyscarcely） when when， every timeevery time等引導(dǎo)。等引導(dǎo)。 e.g. When I came into the officee.g. When I came into the office， the teachers were having a the teachers were having a meeting.meeting. He started as soon as he received the news.He started as soon as he rec

4、eived the news. Once you see himOnce you see him， you will never forget him.you will never forget him. No sooner had I gone to bed than I went to sleep.No sooner had I gone to bed than I went to sleep. 二、原因狀語從句二、原因狀語從句 原因狀語從句是表示原因或理由的，引導(dǎo)這類從句的最常用的連詞原因狀語從句是表示原因或理由的，引導(dǎo)這類從句的最常用的連詞是是becausebecause， since

5、since， as as ， now thatnow that既然等，既然等，for for 表示因果關(guān)系表示因果關(guān)系時(shí)它引導(dǎo)的不是從句為并列連詞，語氣不如時(shí)它引導(dǎo)的不是從句為并列連詞，語氣不如becausebecause強(qiáng)。強(qiáng)。 e.g. He is disappointed because he didnt get the position.e.g. He is disappointed because he didnt get the position. As it is rainingAs it is raining， I will not go out.I will not go o

6、ut. Now that you mention itNow that you mention it， I do remember.I do remember. 三、地點(diǎn)狀語從句三、地點(diǎn)狀語從句 引導(dǎo)地點(diǎn)狀語從句的連詞是引導(dǎo)地點(diǎn)狀語從句的連詞是where where 和和whereverwherever等。等。 e.g. Sit wherever you like.e.g. Sit wherever you like. Make a mark where you have a question.Make a mark where you have a question. 四、目的狀語從句四、目

7、的狀語從句 引導(dǎo)目的狀語從句最常用的詞組是引導(dǎo)目的狀語從句最常用的詞組是soso， so thatso that從句謂語常有情從句謂語常有情態(tài)動詞），態(tài)動詞）， in order thatin order that， in casein case以防，以免等。以防，以免等。 e.g. Speak clearlye.g. Speak clearly， so that they may understand you.so that they may understand you. She has bought the book in order that she could follow the

8、TV She has bought the book in order that she could follow the TV lessons.lessons. He left early in case he should miss the train.He left early in case he should miss the train. 五、結(jié)果狀語從句五、結(jié)果狀語從句 結(jié)果狀語從句是表示事態(tài)結(jié)果的從句，通常主句是原因，從句是結(jié)果。結(jié)果狀語從句是表示事態(tài)結(jié)果的從句，通常主句是原因，從句是結(jié)果。由由so thatso that從句謂語一般沒有情態(tài)動詞），從句謂語一般沒有情態(tài)動詞），

9、 so thatso that， such thatsuch that等引導(dǎo)。等引導(dǎo)。 e.g. She was ille.g. She was ill， so that she didnt attend the meeting.so that she didnt attend the meeting. He was so excited that he could not say a word.He was so excited that he could not say a word. She is such a good teacher that everyone admires her

10、.She is such a good teacher that everyone admires her. 六、條件狀語從句六、條件狀語從句 條件狀語從句分真實(shí)性有可能實(shí)現(xiàn)的事情與非真實(shí)性條件與事實(shí)條件狀語從句分真實(shí)性有可能實(shí)現(xiàn)的事情與非真實(shí)性條件與事實(shí)相反或者在說話者看來不大可能實(shí)現(xiàn)的事情條件句。引導(dǎo)條件狀語從相反或者在說話者看來不大可能實(shí)現(xiàn)的事情條件句。引導(dǎo)條件狀語從句的詞組主要有句的詞組主要有ifif， unlessunless， so so （asas） long aslong as， on on condition thatcondition that， so so （asas）

11、far asfar as， if only if only （ = if = if ）。注意：）。注意：條件從句中的條件從句中的if if 不能用不能用whetherwhether替換。替換。 e.g. If he is not in the officee.g. If he is not in the office， he must be out for lunch.he must be out for lunch. You may borrow the book so long as you keep it clean.You may borrow the book so long as

12、you keep it clean. So far as I knowSo far as I know據(jù)我所知），據(jù)我所知）， he will be away for three he will be away for three months.months. You can go swimming on condition that You can go swimming on condition that （ = if = if ） you dont go you dont go too far away from the river bank.too far away from the

13、river bank. If he had come a few minutes earlierIf he had come a few minutes earlier， he could have seen her.he could have seen her. 七、讓步狀語從句七、讓步狀語從句 讓步狀語從句可由讓步狀語從句可由althoughalthough， thoughthough， asas， even if even if （thoughthough），）， howeverhowever， whateverwhatever， whether orwhether or， no mat

14、ter who no matter who （whenwhen， whatwhat， ） 等引導(dǎo)。注意：等引導(dǎo)。注意：asas引導(dǎo)的讓步狀語從句一般是倒裝的。引導(dǎo)的讓步狀語從句一般是倒裝的。 e.g. Though he is a childe.g. Though he is a child， he knows a lot.he knows a lot. Child as he isChild as he is， he knows a lot.he knows a lot. Whatever Whatever （ = No matter what = No matter what ） you

15、sayyou say， Ill never change my Ill never change my mind.mind. 八、方式狀語從句八、方式狀語從句 方式狀語從句常由方式狀語從句常由asas， as if as if （thoughthough），）， the waythe way， rather thanrather than等引導(dǎo)。等引導(dǎo)。 e.g. You must do the exercise as I show you. e.g. You must do the exercise as I show you. He acted as if nothing had happ

16、ened.He acted as if nothing had happened. 九、比較狀語從句九、比較狀語從句 比較狀語從句常用比較狀語從句常用thanthan， so so （asas） as as， the more the more the morethe more等引導(dǎo)。等引導(dǎo)。 e.g. I have made a lot more mistakes than you have.e.g. I have made a lot more mistakes than you have. He smokes cigarettes as expensive as he can affor

17、d.He smokes cigarettes as expensive as he can afford. The busier he isThe busier he is， the happier he feels.the happier he feels. 十、使用狀語從句時(shí)要注意的幾個(gè)問題十、使用狀語從句時(shí)要注意的幾個(gè)問題 1. 1. 在時(shí)間和條件有時(shí)也在方式、讓步等從句中，主句是一般將來時(shí)，在時(shí)間和條件有時(shí)也在方式、讓步等從句中，主句是一般將來時(shí)，從句通常用一般現(xiàn)在時(shí)表示將來。從句通常用一般現(xiàn)在時(shí)表示將來。 e.g. Well go outing if it doesnt rain t

18、omorrow.e.g. Well go outing if it doesnt rain tomorrow. Ill write to you as soon as I get to Shanghai.Ill write to you as soon as I get to Shanghai. 2. 有些時(shí)間、地點(diǎn)、條件、方式或讓步從句，如果從句的主語與主句主語一致或雖不一致，是it），從句的謂語又包含動詞be，就可省略從句中的“主語 + be部分。 e.g. When （he was） still a boy of ten， he had to work day and night. If （you are） asked you may come in. If （it is） necessary Ill explain to you a