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原因状语从句和条件状语从句

2017-09-20 4页 doc 17KB 119阅读

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原因状语从句和条件状语从句原因状语从句和条件状语从句 第75天 原因状语从句和条件状语从句 [学习要点] 一、原因状语从句概说和在句中的相对位置。 二、条件状语从句的概说。 [家教点窍] 一、原因状语从句一般回答why,并可以由下列从属连词来引导,because(因为)、as(因为)、since(既然)。照一般规律,要强调什么(原因状语从句还是主句)就把什么放在句尾,但as或since常放在句首,这是因为它们所表明的原因对于讲话对象可能是已知的,因此没有必要再予以强调,而because则一般放在主句后面是为了强调讲话对象可能不知道的原因。 ...
原因状语从句和条件状语从句
原因状语从句和条件状语从句 第75天 原因状语从句和条件状语从句 [学习要点] 一、原因状语从句概说和在句中的相对位置。 二、条件状语从句的概说。 [家教点窍] 一、原因状语从句一般回答why,并可以由下列从属连词来引导,because(因为)、as(因为)、since(既然)。照一般规律,要强调什么(原因状语从句还是主句)就把什么放在句尾,但as或since常放在句首,这是因为它们所表明的原因对于讲话对象可能是已知的,因此没有必要再予以强调,而because则一般放在主句后面是为了强调讲话对象可能不知道的原因。 二、条件状语从句常由if(如果)、unless(除非)等从属连词引导,if通常的意思是假如,其后有时跟then(那么)。如then没有道出,亦会隐含在内。 [典型例] 读出下列例句,注意原因状语从句和条件状语从句的用法。 例1 As you can’t type the letter yourself, you’ll have to ask Mary to do it for you. 既然你不能用打字机打这封信,那就请玛丽替你打吧。 例2 He was absent from school because he was ill. 因为生病,他没上学。 评析 从属连词because引导的从句为原因状语从句,在此表示因果。 例3 Since you are free today, you had better help me with my English. 既然你今天休息,你最好帮我学习英文。 评析 从属连词since在此引导的是一个原因状语从句。since常表示借故或勉强的理由。 例4 If the rain stops, we’ll be able to go for a walk. 如果雨停了,我们就能去散步了。 评析 从属连词if在此引导的从句为条件从句,不是指已经发生的事件等,而是指能够发生,可能发生的事件。从句用现在时代替将来时。 [强化训练] 一、用适当的从属连词填空。 1( she finishes early, she will go home. 2. I eat potatoes I like them. 3. I didn’t know the way, I asked a policeman. 4. you won’t help me , I’ll back someone else. 5.Will you give this letter to John you go past his home? 6. he locked the door, he left. 7.I’ll write back to you I get your letter. 8.I’ll go to the cinema with you my brother lets me. 9.He can’t go there he is busy writing a book. 10.He won’t pass the exam he works hard. 11.I had no take a bus it’s a bit too far. 12. you are a student you should work hard at your lessons. 13.I will go teachers are most needed. 14. he is standing in the rain, he will catch cold. 15.She was so careless she made a lot of mistakes. 二、完成下列句子。 1. (由于雨下得很大)we had to stay at home. 2.They lost the game (虽然他们希望能赢)。 3.We went (长着许多花的地方)。 4(You’d better see a doctor, (因为你看上去不好)。 5(I’ll give the book back to you (我一读完这本书)。 6.The students are busy working hard (直到天黑)。 7.Please be quiet (当孩子在睡觉时)。 8(I’ll get up, (如果我明天好些的话)。 9(We shall go to see our teacher (如果我们明天有时间)。 10(She didn’t feel so well (以致于她早早上床睡觉了)。 三、汉译英。 1(在汽车停下之前,请不要开门。 2(我兄弟总是完成作业后再休息。 3(他们未能赶上汽车,因为他们起床太晚了。 4(我们正在议论这部电影,就在这时王先生进来了。 5(既然他不诚实,我就不愿把他看作朋友。 6(如果明天下雪,我们就堆个雪人。 7(他一回到家里,就给我打了电话。 8(这本英文书太难了,我看不懂。 9(老师进来后,所有的学生都停止了讲话。 10(我将在这里等到雨停。 参考答案 一、1.If 2.because 3.As 4.Since 5.when 6.After 7.as soon as 8.if 9.because 10.unless 11.because 12.Since 13.where 14.If 15.that 二、1.Because it was raining hard 2.though they hoped to win 3.where there were many flowers 4.because you don’t look well 5.as soon as I finish reading it 6.until it is dark 7.when the children are sleeping 8.if I feel better tomorrow 9.if we are free tomorrow 10.that she went to bed early 三、1(Please don’t open the door before the bus stops. 2.My brother usually takes a rest after he finishes his homework. 3.They didn’t catch the bus because they got up too late. 4.They were talking about his film when Mr Wang came in. 5.Since he is not honest, we won’t have him as our friend. 6.If it snows tomorrow, we’ll make a snowman. 7.As soon as he got home, he telephoned me. 8.This book is so difficult that I can’t understand it. 9.After the teacher came in all the students stopped talking. 10.I’ll wait here until it stops raining.
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