介绍:
连接词70个左右
Because, because of, since now that, as, thanks to…, due to…, therefore, as a result (of), otherwise, so…that, such…that,
1.用because（因为）表示主从句之间有必然的因果关系。
一般：主句+（because+从句）.
Because+从句，主句. Because 从句放在前面表示强调。
I bought the house simply because it was large.
I didn't go out because it was raining.
I didn't go out because of rain.
2.since因为，由于，既然，鉴于 (conj.因为；既然；自从),
Since +从句， 主句（一般）
Since you can't answer the question, perhaps we'd better ask someone else.
既然你无法回答这个问题，我们最好再问问别人。
I'm forever on a diet, since I put on weight easily...
我永远都在减肥，因为我很容易长胖。
Since she did not make enough money to live in her own house, she went back to live with her mother.
3. as 表示的因果关系较since弱，Enjoy the first hour of the day. This is important as it sets the mood for the rest of the day.
As a result,
4.for是并列连词,引导的是并列从句,表示原因的语气很弱,一般是对结果作推断性的补充说明或解释,不表示直接原因。for用法较正式,很少用于口语,一般用于书面语。
He had a great desire to have a home of his own for he had always lived with my grandmother.
5. now that既然；既是
Now that she was retired she lived with her sister. 现在她已经退休了，和姐姐一起住
