1,并列连词
and 和,那么,渐渐;
or 或,否则,不管是…,还是;
but 但是,而是,的确…但;nor 也不
so 也是,因此,所以,那么,这样看来;
for 因为(表示推测),由于;

2,相关连词
both A and B 既是A又是B;
either A or B 不是A 就是B;
neither A nor B 既不是A也不是B ,两者皆非;
not only A but also B 不但A而且B;
A as well as B 不但A而且B , 与,和;

3,准连词
而且 besides, furthermore, moreover, in addition;
然而 yet, still, however, nevertheless;
否则 else, otherwise;
因此 所以 thus, hence, therefore, accordingly, consequently;

4,引导名词从句的连词
从属连词 that, whether, if;
疑问连词 what, which, who/whom/whose;
疑问副词 when, where, why, how;
复合关系代词 whatever, whoever, whomever;

5,引导定语从句的连词
关系代词 who (whom whose), which, that, as;
关系副词 when, where, why;
关系形容词 which, whose…

6,引导状语从句的连词
表示时间 when, while, as, till, whenever, since, as soon as…
表示条件 if, unless, as long as, in case, if only, on condition…
表示结果 so…that , such…that (如此…以至于);
表示目的 that, so that, in order that; lest, for fear, in case;
表示原因 as, because, now (that ), seeing (that), since…
表示让步 whether…or, notwithstanding, though, for all that…
表示地点 where, wherever, everywhere, anywhere
表示方式 as, as…so, as if, according as;
表示比较 than, the more… the more…, as…as…, not so…as;