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1、连 词conjunction,专项复习一,考点1：并列连词,考点2：引导状语从句的连词,考点3：引导名词性从句的连接词,while 用作并列连词，意为“而”，表示对比。 He likes pop music while I am fond of country music. He was playing the guitar while his sister was watching TV.,review,巩固：用适当的连词填空。 并 列 句 1. I thought youd be late for the concert, _ we ended up getting there ahead
2、 of time. (湖南) 2. Stand over there _ youll be able to see the oil painting better. (全国) 3. He found it increasingly difficult to read, _ his eyesight was beginning to fail. (山东) 4. The artist was born poor, _ poor he remained all his life. (重庆),but,and,for,and,5. In some places women are expected to
3、 earn money _ men work at home and raise their children. (四川) 6. You have failed two tests. Youd better start working harder, _ you wont pass the course. (北京) 7. Reality is not the way you wish things to be, nor the way they appear to be, _ the way they actually are. (湖南),while,or,but,考点2：引导状语从句的连词,
4、连接词when, while, as的用法区别： 1while引导的时间状语从句的谓语动词必须是可 延续的，而when引导的时间状语从句的谓语动词 既可以是可延续的，也可以是表短暂性动作的动词。如： When/While he was eating his breakfast, he heard the doorbell ring. When I stopped my car, a man came up to me. (不可用while) 2从句动作发生在主句动作之前时，只能用when引导这个从句，不可用as或while。如： When you have finished your work
5、, you may have a rest. (这里，when引导的时间状语从句中用现在完成时表示将来要完成的 一个动作，这个动作比主句的动作先发生。),3表示“随着”，连词用as，不用when或while。 如： As the election approached, the violence got worse. 随着选举的临近，暴力活动变得越来越糟糕了。 4如果主句表示的是短暂动作，而从句用延续性 动作的进行时态表示在一段时间内正在进行的动 作时，when, while与as 可互换使用。如： When/While/As I was walking down the street, I
6、came across an old friend of mine.,_ he heard this, he got very angry. 2. I met Lucy_ I was walking along the river. 3. _ a child, he lived in the countryside. A. when B. while C. as,对比训练 1,A,B,C,1. We were about to leave_ it began to rain. 2. She thought I was talking about her son, _, in fact, I w
7、as talking about my son. 3. Hardly had I finished my composition _ the bell rang. A. when B. while C. as D. during,对比训练 2,A,B,A,1）because是我们最常见到的，它所表示原因的语气最强，表示直接原因 ，它所引导的从句一般放在主句后面。because用于回答why的问句、引导表语从句、用于强调句等，而其余三者均不行。 Thats _you cant appreciate music. 这是因为你不能欣赏音乐。 It is _he is honest that I li
8、ke him. 是因为他诚实我才喜欢他。 2）由because引导的从句如果放在句末，且前面有逗号，则可以用for来代替。但如果不是说明直接原因，而是多种情况加以推断(或对前面句意进行补充说明)，就只能用for。 He is absent today, _he is ill. He must be ill, _ he is absent today.,比较：because, for , since和as,because,because,because / for,for,_he had not paid his bill, his electricity was cut off（既然他不付电费
9、，他的电就被切断了。）,Since,3） since 的语气比 as 强。since和as引导的从句一般放在句子的开头。 since通常指说话双方已知的原因， 意为“既然”； 而 “as”常表示“已为人们所知或显而易见的原因或理由”。 意为 “因为”或“正如”。,_ you are wrong, you should apologize. 你既然错了，就应该道歉。 _ we all know, the earth is round. 正如我们所知道的，地球是圆的。 _ hes been ill for ages, I will help him.,Since,As,相对地，“because”就
10、用于指对方或读者不知的原因，是引起某事的 直接原因 。 例：Why were you late for school this morning? Because I had an accident on my way to school,As,若两个句子(有两个主谓结构)之间，没有句号或分号， 也没有连词，那空格处必定是填连词，否则，句子结构就 不完整。根据两句之间的意义和逻辑关系，或者根据句式 结构，确定是并列句还是某种主从复合句。然后根据某种 从句的特点，结合连词的意义和作用，确定填具体的某个 连词。,解题技巧,状语从句课堂巩固练习 1. Im sorry youve been waiti
11、ng so long, but itll still be some time _ Brian gets back. (北京) 2. The research will take Joan and Paul about five months; it will be a long time _ we meet them again. (安徽) 3. - Did you return Freds call? - I didnt need to _ Ill see him tomorrow. (北京),before,before,because,4. - Why didnt you tell hi
12、m about the meeting? - He rushed out of the room _ I could say a word. (四川) 5. “You cant have this football back _ you promise not to kick it at my cat again,” the old man said firmly. (广东) 6. Youd better not leave the medicine _ kids can get at it. (山东) 7. In time of serious accidents, _ we know so
13、me basic things about first aid, we can save lives. (重庆),before,unless,where,if,8. In peace, too, the Red Cross is expected to send help _ there is human suffering. (江西) 9. A small car is big enough for a family of three _ you need more space for baggage. (全国) 10. _ he had not hurt his leg, John wou
14、ld have won the race. (全国II) 11. You will be successful in the interview _ you have confidence. (福建),wherever,unless,If,once/if,unless与until均为从属连词,unless表“除非”,强调 条件,引导条件状语从句; until表“直到”,强调时间/状态 的延续,引导时间状语从句。 1. I didnt know the news_my teacher told it to me. 2. I couldnt know the news_ my teacher told it to me. 3.-Was his father very strict with him when he was at school? -Yes. He had never praised him _he became one of the top students in his grade.,unless 与 until 的 区 别,until,unless,until,