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英語(yǔ)語(yǔ)法知識(shí)難點(diǎn)--連詞（三）

　　I． 要點(diǎn)
　　1、 連詞的種類(lèi)
　?。?） 并列連詞用來(lái)連接并列關(guān)系的詞、短語(yǔ)或分句，如and, for, or, both…and, either…or, neither…nor等。
　?。?） 從屬連詞用來(lái)引導(dǎo)從句，如that, if, whether, when, after, as soon as等。
　　除了從屬連詞（引導(dǎo)狀語(yǔ)從句）外，還有其它可以用來(lái)引導(dǎo)從句的詞類(lèi)。它們是連接代詞和連接副詞（引導(dǎo)名詞性從句），關(guān)系代詞和關(guān)系副詞（引導(dǎo)定語(yǔ)從句）。
　　2、 常用連詞舉例
　　(1)and 和，并且
　　They drank and sang all night.
　　(2) both…and 和， 既…也…
　　Both my parents and I went there.
　　(3) but 但是，而
　　I'm sad, but he is happy.
　　(4) either…or 或…或…， 要么…要么…
　　Either you're wrong, or I am.
　　(5) for因?yàn)?br>　　I asked him to stay, for I had something to tell him.

　　(6) however 然而，可是
　　Af first, he didn't want to go there. Later, however, he decided to go.
　　(7) neither…nor 既不…也不
　　Neither my parents nor my aunt agrees with you.
　　(8) not only…but(also) 不但…而且…
　　He not only sings well, but also dances well.
　　(9) or 或者，否則
　　Hurry up, or you'll be late.
　　Are you a worker or a doctor?
　　(10) so 因此，所以
　　It's getting late, so I must go.
　　(11) although 雖然
　　Although it was late, they went on working.
　　(12) as soon as 一 …就
　　I'll tell him as soon as I see him.
　　(13) because 因?yàn)?br>　　He didn't go to school, because he was ill.
　　（14）unless 除非，如果不
　　I won't go unless it is fine tomorrow.
　?。?5）until 直到…
　　He didn't leave until eleven. (瞬間動(dòng)詞用于not… until 結(jié)構(gòu))
　　He stayed there until eleven.
　?。?6）while 當(dāng)…時(shí)候，而 (表示對(duì)比)
　　While I stayed there, I met a friend of mine. (while后不可用瞬間動(dòng)詞)
　　My pen is red while his is blue.
　?。?7）for 因?yàn)?br>　　He was ill, for he didn't come. (結(jié)論是推斷出來(lái)的)
　?。?8）since自從…
　　I have lived here since my uncle left.
　?。?9）hardly… when 一… 就
　　I had hardly got to the station when the train left.
　?。?0）as far as 就… 來(lái)說(shuō)
　　As far as I know, that country is very small.
　　You may walk as far as the lake. (一直走到湖那里)