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英语语法 并列连词和连接性副词
2025-01-06 | 阅:  转:  |  分享 
  
英语语法|并列连词和连接性副词基本连词。基本的并列连词一共有3个:and、or和but.此种并列连词可以连接对等的单词、短语和句子。单词:H
e?and?I?enjoy singing.Is he?happy?or?sad?短语:I came?to see him?and
?to tell him the truth.Does he work?in Taipei?or?in Shanghai.句子:H
e works hard,and?his father is proud of him.He doesn’t study hard
,?but?his teacher likes him.2. 基本连词衍生的其他连词。使用这些衍生词要注意一下事项:① 连接主语时
,both… and …之后始终接复数动词,其余衍生连词连接主语时,动词要随最近的主语做单复数变化。例1:Both he and
I?are?happy about it.例2:Either he or I?am?wrong.例3:Neither you no
r he?is?to blame.② both… and…/neither…nor…/not…but…等三组连词通常不连接句子,而
not only…but also…可以用来连接句子,但not only引导的句子要采用倒装结构。例:Not only?can s
he sing, but she can also dance.(注意是第一分句倒,后面第二分句不倒)③ not only…but
also…中的also通常可以省略。若不省略吗,连接单词或短语时 but also不能分开,连接句子时要分开。例:连接单词:Sh
e is not only beautiful but(also)kind.连接句子:Not only can she dance
,?but she can (also) sing.3. as well as(以及…)与rather than (而不是…)做并
列连词。可连接对等的单词、短语和句子。例:We?as well as?John?like itHe came here?to le
arn English?as well as?to know more about life注意:4. 副词连词在主从复合句中,由
because、if等引导的从句充当状语,类似副词的功能,所以把这类连词称为副词连词。常用的副词连词有:because、thoug
h、if、unless、as soon as和once。具有以下特点:① 副词连词冠于任何一个从句前,该从句就成为状语从句。整个状
语从句可视为副词,用来修饰主句,不能单独存在。例:I like him. Because he is nice. (错)I lik
e him?because he is nice. (对)②?副词连词只能连接从句。例:When he came,I was wr
iting a letter.③ 状语从句的位置。任何一个副词连词所引导的从句若置于主句之后,两句之间通常没有逗号,但若状语从句置
于主句之前,两句之间通常要加逗号。注意:When(当)、if(如果)、once(一旦)、as soon as(一旦)和unless
等副词连接所引导的从句,也可表示一种条件,形成所谓的条件句。若用来表示将来的状况时,条件句的时态要用一般现在时或现在完成时,主句时
态用将来时。例:When I?am?rich, I?will?buy a car.If he?has?time, he?will?
come here.5. 连接性副词。此类副词有连接的意味,但不能作为连词来用,此类副词称为连接性副词。这类词有however、n
evertheless、therefore、thus、moreover、furthermore和besides等。此类副词在使用时
,通常要和主从句隔开。例:He is nice;?however,?I don’t like himHe is kind.?Therefore,?we all like him
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