1、 並列連詞and和or：
①and 和or 是用得最多的並列連詞，可以連線：
a. 兩個並列的動詞： We were singing and dancing all evening. 整個晚上我們都在唱歌跳舞。
b. 名詞、形容詞等：This apple is big and red. Would you like fish or beef?
c. 兩個並列的分句(句子)：I said it and I meant it. 我說話算數。
②and 可連線兩個分句，表示遞進關係。 Give him an inch and he will take a mile. 他會得寸進尺。
③or可連線分句，表示"否則"：
Don't drive so fast or you'll have an accident. 別開這麼快，不然你會出車禍。
2、 表示意思轉折的連詞：but, yet:
①but和yet的用法：
The weather will be sunny but cold. 天氣會晴朗但很冷。
It is strange, yet true. 這很奇怪，卻是真的。
②however, still 等為副詞，但可起連線作用，表示意思的`轉折---"但是"或"然而"。
a. however: His first response was to say no. Later, however, he changed his mind.
他的第一反應是不行，但後來他改變了主意。
b. still: It's raining; still I'd like to go. 天在下雨，但我還是要去。
③片語all the same: She is naughty, all the same we have to laugh at her jokes.
她很調皮，但對她的惡作劇我們還是要發笑。
3、表示因果的連詞：
① for可以表示"因為"，但引導的不是從句，而是並列分句，對前面情況加以解釋，常用逗號把它和前面的分句分開，這在書面語中比較多見。
The days were short, for it was now December. 白天很短，因為現在已經是十二月。
She must have gone out early, for she had not come for breakfast.
她肯定一早出去了，因為她沒來吃早飯。
② so 表示結果，可譯為"因此"、"所以"。
Our cases were heavy, so we took a taxi. 我們的箱子很重，因此我們坐了計程車
③ therefore 為副詞，也表示同樣的意思---"因此"，可放句前：
He had gone; she therefore gave the money to me.他走了，於是她把錢給了我。
4、both... and 的用法
A man should have both courage and perseverance.一個人既要有勇氣又要有毅力。
5、就近原則：
1)neither…nor… Neither Lucy nor Lily is a League member.
2)not only…but also… Not only you but also he likes football.
3)either…or… Either Jim or Peter is right.
4)not…but… Not Jim but Peter broke the cup.
6、as well as的用法:
I have read one of his novels as well as a few of his plays. 我讀過他的一本小說和幾個劇本。
