原因狀語(yǔ)從句語(yǔ)法講解

1、-作者xxxx-日期xxxx原因狀語(yǔ)從句語(yǔ)法講解【精品文檔】A、引導(dǎo)原因狀語(yǔ)從句的連詞 原因狀語(yǔ)從句一般由從屬連詞because, as, since，now that引導(dǎo)。B、because, as, since和now that的區(qū)別：1、because“因?yàn)椤?，表示直接的原因，語(yǔ)氣最強(qiáng)。1）why提問(wèn)的句子，必須用because回答。2）because的從句常放在主句之后。3）because 不能與so連用。4）because+ 從句；because of+ 名詞短語(yǔ)I missed the train because I got up late.He was angry not bec

2、ause we were late but because we made a noise.-Why didnt he come yesterday? -Because he was ill.2、as“因?yàn)椤?，語(yǔ)氣較弱，一般放在主句前，中間用逗號(hào)隔開(kāi)，表示的是明顯的原因。As he was not well, I decided to go there without him.As it was raining hard, we had to be indoors.3、since/ now that“既然”，一般放在主句前，中間用逗號(hào)隔開(kāi)，表示的是明顯的原因或眾所周知的事實(shí)。Since/ No

3、w that this method doesnt work, lets try another.Since/ Now that you feel ill, youd better not go to work.C、for 引導(dǎo)的并列句與原因狀語(yǔ)從句的辨析并列連詞for“因?yàn)椤?，引?dǎo)的不是從句，而是并列分句，只能放在主句之后，不能放在句首，常用逗號(hào)把它和前面的分句隔開(kāi)。對(duì)主句補(bǔ)充說(shuō)明理由或推斷原因。It rained last night, for the ground is wet. She must have gone out early, for she had not come for

4、 breakfast.Exercise:一、填入恰當(dāng)?shù)倪B詞1. I didnt go to school yesterday _ I was ill.2. _ everybody is here, lets begin our meeting.3. _ you are in poor health, you should not stay up late.4. I asked her to stay to tea, _ I had something to tell her.5. _ all the passengers are here, why dont we start at once?

5、6. Bill wont make any progress _ he doesnt study harder than before.7. He might have gone to bed, _ the light went out. 二、 改寫(xiě)句子,保持句意不變1) The ship changed its course because there was a storm.The ship changed its course _ _ _ _.2) Because he was ill, he didnt go to school. He was ill, _ he didnt go t

6、o school.3) He couldnt walk because his leg was broken.He couldnt walk _ _ his _ leg.4) I came back because it was raining heavily. I came back _ _ the _ rain.三、課堂小結(jié)：_四、回家作業(yè)：一、填入恰當(dāng)?shù)倪B詞1. _ you do not understand, I will explain again.2. _ Jane was the oldest in this family, she had to look after the o

7、thers.3. He must be ill, _ he is absent today.4. The teacher must be strict with you _they want you to make great progress.5. _your father is well again, you no longer have anything to worry about.6. The day breaks, _the birds are singing.7. _ you are ill, youd better go to see the doctor.8. _ she w

8、as late for class, she had to say sorry.二、 選擇恰當(dāng)?shù)拇鸢?. The man cant get on the bus _ there is no room on it. A. though B. because C. until D so that2. _ her daughter hadnt come back, _ she looked worried. A. Because, / B. Because, so C. Though, but D. Though, /3._ youve got a chance, you might make fu

9、ll use of it. A. Now that B. After C. Although D. As soon as4. He found it difficult to read, _ his eyesight was beginning to fail. A. and B. for C. but D. or5. A man cannot smile like a child, _ a child smiles with his eyes, while a man smiles with his lips alone. A. so B. but C. and D. for五、學(xué)生反饋：（

10、在完成回家作業(yè)的過(guò)程中存在的問(wèn)題）_六、教師反饋：（在批改學(xué)生回家作業(yè)中發(fā)現(xiàn)的問(wèn)題）_Keys：A、引導(dǎo)原因狀語(yǔ)從句的連詞：because, as, since，now thatB、because, as, since和now that的區(qū)別：1、because：“因?yàn)椤?，表示直接的原因，語(yǔ)氣最強(qiáng)。1）why提問(wèn)的句子，必須用because回答。2）because的從句常放在主句之后。3）because 不能與so連用。4）because+ 從句；because of+ 名詞短語(yǔ)2、as：“因?yàn)椤?，語(yǔ)氣較弱，一般放在主句前，中間用逗號(hào)隔開(kāi)，表示的是明顯的原因。3、since/now that：“既然”，一般放在主句前，中間用逗號(hào)隔開(kāi)，表示的是明顯的原因或眾所周知的事實(shí)。C、for 引導(dǎo)的并列句與原因狀語(yǔ)從句的辨析：并列連詞for“因?yàn)椤?，引?dǎo)的不是從句，而是并列分句，只能放在主句之后，不能放在句首，常用逗號(hào)把它和前