（精心整理）英語中的連詞用法

1、連詞連詞是一種虛詞， 它不能獨(dú)立擔(dān)任句子成分而只起連接詞與詞，短語與短語以及句與句的作用。連詞主要可分為兩類：并列連詞和從屬連詞。一并列連詞：用來連接平行的詞、詞組和分句。1、and (1)連接兩個(gè)并列的謂語：They sat down and talked about something.(2)連接兩個(gè)并列的動(dòng)詞不定式，第二個(gè)不定式往往省略to：They started to dance and sing.(3)可以和祈使句或名詞詞組連用表示條件（or也有此用法）：Make up your mind, and youll get the chance.= If you make up you

2、r mind, youll get the chance.One more effort, and youll succeed.= If you make one more effort, youll succeed (4)當(dāng)表示整體或者指同一人時(shí)謂語動(dòng)詞用單數(shù), 當(dāng)and連接的單數(shù)名詞前分別有each，every，no等詞修飾時(shí)，謂語也用單數(shù)。The bread and butter is really delicious(美味的). The mother and teacher is very strict with her son.No teacher and no student is

3、 allowed to smoke in class. (5)連接兩個(gè)相同意思的詞，表示“漸漸”，或加強(qiáng)語氣：Read it again and again2、both and兩者都Both he and she play the piano.3、neithernor 既不也不謂語動(dòng)詞采用就近原則，與nor后的詞保持一致。Neither you nor he is to blame.4、not onlybut (also) 不但而且She plays not only the piano, but (also) the guitar.*not only but also 關(guān)聯(lián)兩個(gè)分句時(shí)，一個(gè)分

4、句因有否定詞not 而必須倒裝。Not only does he like reading stories, but also he can even write some.5、as well as 也，與一樣The teacher, as well as the students, is interested in the activity.二表示選擇關(guān)系1) or 或者Which do you prefer, coffee or juice ? Hurry up, or youll be late for the class. 2) eitheror或者或者（謂語動(dòng)詞采用就近原則）Eith

5、er you or I am right. 3) or else/ otherwise 否則Be silent, or else you will be kicked out.I am tired, otherwise, I would play. 三表示轉(zhuǎn)折或?qū)Ρ汝P(guān)系1) but 但是 He is rich but unhappy.2) while 然而（表示對(duì)比意味） Some people love cats, while others hate them.3) yet 然而 She said she would be late, yet she arrived on time.4) h

6、owever 然而，可是 She does not like him, however, I like him.5) notbut 不是而是（not 和but 后面的用詞要遵循一致原則）Its not my book, but is his book.四表示因果關(guān)系1) for 因?yàn)椋ㄗ霾⒘羞B詞使用時(shí)，是在對(duì)先行的句子補(bǔ)述原因或者理由，只可以連接句子與句子，通常不置于句首）He is absent today, for he is ill.2) so, therefore 因此He hurt his leg, so he couldnt play in the game.I think, therefore I am. 3) then 那么，因而Run fast, then he wont catch you.注意：a. 兩個(gè)并列連詞不能連用，但therefore, then, yet可以和并列連詞連用。You can watch TV, and or you can go to bed.(錯(cuò)誤)He hurt his leg, and so / and therefore he couldnt play football.(正確)b. although不與 but連用，但是although可以與yet連用Although he was