连词 Miss.dai.ppt

1、连 词,考试要求,28.掌握并列连词的基本用法。如：and，but，or，so等。 29.掌握常用从属连词的基本用法。如：when，after，before，as soon as，because，if等。,连词,用来连接词、短语、从句或句子的词叫连词。 He may hurt himself and his friends He may hurt himself and broke his bike. He may hurt himself and his parents will be very worried. He may hurt himself before he get to sc

2、hool.,连词的分类,并列连词，如and, but, or, so等。 从属连词，如when, after, before, as soon as, because, if等。,并列连词,用来连接具有并列关系的词、短语、句子的词叫并列连词。,并列连词的分类,表联合关系的and, bothand, not onlybut also, neithernor等。 表选择关系的or, eitheror等。 表转折关系的but, while等。 表因果关系的for, so等。,【注意】,and: “和”在肯定句中表并列 or: “和”在否定句中表并列 or: “或者”用于选择疑问句 or: “否则”

3、I must work hard, or Ill fail in the exam. but: “但是”表转折,【注意】,both and: 既又（连接主语为复数） neithernor: 既不也不 就近原则 eitheror: 或者或者 not only but also: 不但而且 如：Both Lily and Lucy are right. Neither you nor he is right. Either you or I am wrong. Not only my parents but also my brother likes the cat.,当它们连接两个并列主语时，谓

4、语动词要随相邻的主语变化。,1. _ John _I are policemen. A. Neither . nor B. Either . or C. Both . and D. Not only. but also 2.There are two dictionaries on his desk, but _ of them is useful to me. A. all B. neither C. both D. either,并列句,含有两个或者两个以上的独立主谓结构或简单句的句子。,并列句的结构,由逗号、分号隔开 Some people cry; others laugh. 由并列连

5、词连接 结构为：简单句+并列连词+简单句 He may hurt himself and his parents will be very worried.,改错,I dont like watching TV and listening to music. Though he is only 5, but he can play the piano very good. Both Tom and Mike is a student. Hurry up, or you are late for school.,or,well,are students,will be,改错,Neither my

6、 mother nor my father like music. Because he likes music very much, so he wants to be a singer. He likes playing football and playing basketball.,likes,从属连词,用来连接主句和从句的连词叫从属连词。,常用从属连词,引导时间状语从句的after, before, when, while, as, until, till, since, as soon as等。 引导条件状语从句的if, unless等。 引导原因状语从句的because, as,

7、 since等。 引导目的状语从句的so that, in order that等。,常用从属连词,引导让步状语从句的though, although, even if等。 引导结果状语从句的so that, sothat, suchthat等。 引导比较状语从句的than, asas等。 引导名词从句的that, if, whether等。,常用连词辨析 - while, when, as,这三个连词都可引导时间状语从句，但用法有所不同。,常用连词辨析 - while, when, as,1) 当某事正在进行的时候，又发生了另一件事。While, when, as 都可用来引导表示“背景”的

8、时间状语从句。 例如：As / When / While I was walking down the street, I noticed a police car.,常用连词辨析 - while, when, as,2) 当两个长动作同时进行的时候，最常用的是while。例如： While mother was cooking lunch, I was doing my homework.,常用连词辨析 - while, when, as,3) 当两个动作都表示发展变化的情况时，最常用的是as。例如： As children get older, they become more and m

9、ore interested in things around them.,常用连词辨析 - while, when, as,4) 当两个短动作同时发生时，或表示“一边一边”时，最常用as。例如： Just as he caught the fly, he gave a loud cry.,常用连词辨析 - while, when, as,5) 当从句的动作先于主句的动作时，通常用when。例如： When he finished his work, he took a short rest.,常用连词辨析 - while, when, as,6) 当从句是瞬间动作，主句是延续性动作时，通常用

10、when。例如： When John arrived, I was cooking lunch.,常用连词辨析 - as, because, since , for,这四个词都可表原因，但用法有区别。,常用连词辨析 - as, because, since , for,1) 如果原因构成句子的最主要部分，一般用because。因此，because引导的从句往往放在句末。例如： I stayed at home because it rained.,常用连词辨析 - as, because, since , for,2) 如果原因已被人们所知，或不如句子的其它部分重要，就用as或since。Si

11、nce比as稍微正式一点。As和since 引导的从句一般放在句子的开头。例如： As he wasnt ready, we left without him.,常用连词辨析 - as, because, since , for,3) for用来补充说明一种理由，因此，for引导的从句几乎可以放在括号里。For引导的句子不放在句子的开头。例如： I decided to stop and have lunch-for I was feeling quite hungry.,常用连词辨析 - if, whether,if和whether都可作“是否”讲，在引导宾与从句是一般可互换。例如： I w

12、onder whether (if) you still study in that school.,常用连词辨析 - if, whether,在下列情况下，只能用whether,不能用if： 1) 引导主语从句时。例如： Whether he will come to the party is unknown.,常用连词辨析 - if, whether,2) 引导表语从句时。例如： The question is whether I can pass the exam. 3) 在不定式前。例如： I havent made up my mind whether to go there or

13、not.,常用连词辨析 - sothat, such.that,1) sothat中的so是个副词，其后只能跟形容词或副词，而such.that中的such是个形容词，后接名词或名词短语。例如： Im so tired that I cant walk any farther.,常用连词辨析 - sothat, such.that,2) 如果在名词之前有many, much, little, few时，用so,不用such。例如： He has so little education that he is unable to get a job.,常用连词辨析 - although, but,

14、这两个连词不能用在同一个句子中。例如： 我们不能说“Although he is over sixty, but he works as hard as others.” 这个句子应改为：Although he is over sixty, he works as hard as others. 或He is over sixty, but he works as hard as others.,常用连词辨析 - because, so,这两个连词同样不能用在同一个句子中。例如： 我们不能说“Because John was ill, so I took him to the doctor.”

15、 这个句子应改为Because John was ill, I took him to the doctor. 或John was ill, so I took him to the doctor.,绿皮P12-36,36. _ Robby tried very hard, he didnt have the basic sense of music. A. Since B. Unless C. Because D. Although,绿皮P100-43,43. _ none of you will admit（承认）to have done it, then I will punish yo

16、u all. A. Although B. Since C. Until D. Before,绿皮P108-41,41. They contacted（联络）the mountain rescue team. _ the weather was so bad that the helicopter couldnt get to the two climbers. A. If B. Although C. Because D. But,绿皮P140-43,43. The carrot went in strong and hard _ after being in boiling water,

17、it softened and became weak. A. because B. though C. or D. but,3. He didnt go to sleep _he finished his homework. A. till B. before C. after D. until,11. -Will the foreigners have any problems talking with Chinese in 2008? -I dont think so. Now _ the young _ the old can speak some English. A. either

18、or B. not only but also C. neithernor D. bothor 12. We didnt catch the train _ we left late. A. so B. because C. but D. though 13. Tom failed in the exam again _ he wanted to pass it very much. A. if B. so C. though D. as,14. I wont believe that the five-year-old boy can read five thousand words _ I have tested him myself. A. after B. when C. if D. until 15.