公共英語三級考試經典語法詳解的內容
I. 要點
1、 連詞的.種類
(1) 並列連詞用來連接並列關係的詞、短語或分句，如and, for, or, both…and, either…or, neither…nor等。
(2) 從屬連詞用來引導從句，如that, if, whether, when, after, as soon as等。
除了從屬連詞(引導狀語從句)外，還有其它可以用來引導從句的詞類。它們是連接代詞和連接副詞(引導名詞性從句)，關係代詞和關係副詞(引導定語從句)。
2、 常用連詞舉例
(1)and 和，並且
They drank and sang all night.
(2) both…and 和， 既…也…
Both my parents and I went there.
(3) but 但是，而
Im sad, but he is happy.
(4) either…or 或…或…， 要麼…要麼…
Either youre wrong, or I am.
(5) for因為
I asked him to stay, for I had something to tell him.
(6) however 然而，可是
Af first, he didnt 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 youll be late.
Are you a worker or a doctor?
(10) so 因此，所以
Its getting late, so I must go.
(11) although 雖然
Although it was late, they went on working.
(12) as soon as 一 …就
Ill tell him as soon as I see him.
(13) because 因為
He didnt go to school, because he was ill.
(14)unless 除非，如果不
I wont go unless it is fine tomorrow.
(15)until 直到…
He didnt leave until eleven. (瞬間動詞用於not… until 結構)
He stayed there until eleven.
(16)while 當…時候，而 (表示對比)
While I stayed there, I met a friend of mine. (while後不可用瞬間動詞)
My pen is red while his is blue.
(17)for 因為
He was ill, for he didnt come. (結論是推斷出來的)
(18)since自從…
I have lived here since my uncle left.
(19)hardly… when 一… 就
I had hardly got to the station when the train left.
(20)as far as 就… 來説
As far as I know, that country is very small.
You may walk as far as the lake. (一直走到湖那裏)
II. 例題
例1 John plays football ____, if not better than, David.
A as well B as well as C so well D so well as
解析：該題意為：John踢足球如果不比David好的話，那也踢得和David一樣好。 和…一樣好為as well as. 故該題正確答案為B。
例2 She thought I was talking about her daughter, ____, in fact, I was talking about my daughter.
A when B where C which D while
解析：該處意為"然而"，只有while有此意思，故選D。
 
;例3 Would you like a cup of coffee ____ shall we get down to business right away?
A. and B. then C. or D. otherwise
解析：該處意為"或者"，正確答案為C。
