連? 詞

　　連詞是一種虛詞，不能獨立擔(dān)任句子成分，只起連接詞與詞、短語與短語以及句子與句子的作用。連詞一般分為并列連詞(連接平行的詞、詞組或分句)和從屬連詞(用來引起分句)。除了連詞外，許多連接代詞、連接副詞、關(guān)系代詞和關(guān)系副詞都可以用來引起一個從句。還有一些副詞，如anyway，therefore，also，still等也有類似的作用。另外，有些詞組，如: on the other hand，for that reason等也可以幫助前后文更加連貫?？忌跍蕚溥B詞時應(yīng)注意以下幾個問題。
來源：www.exam
1. 連接兩個分句，一個連詞就夠了。容易出錯的典型例子是：
Although he was tired, but he went to work.
Because she liked him, so she went out with him.

在上面所提到的兩個例子中，我們可以選用although或but，because或so，不能同時使用兩個連詞。但是連接三個分句時，可以用兩個連詞。如：
Although he was tired, he went to work, but he didn't stay there long.

類似的錯誤還有把that和where，how或whether連在一起用。如：
I asked him that how he was working.來源：www.exam
l wondered that where he lived.

2. 關(guān)系代詞who，whom和which的一個特殊用法是可以連接分句。所以它們既是代詞，又是連詞。容易出錯的典型例子是：
He never listens to the advice which I give it to her.
在該句中it是多余的，which連接兩個分句，同時又代替it而成為第二個分句的賓語。

3. That經(jīng)常用來代替which和who，但是不常用that來代替where和when。容易出錯的典型例子是:
The house that she lives is very small.
正確的句子應(yīng)該是：
The house where she lives is very small.
The house that she lives in is very small.

4. 連詞不能單獨和一個分句連用。連接詞要連接兩個分句，而這兩個分句一般要寫成一句話，即不能寫成中間用句號隔開的兩個獨立的句子。容易出錯的典型例子是：
When I came back home. It was late.
正確的句子應(yīng)該是：來源：www.exam
When I came back home it was late.