2017考博英语完形填空逻辑关系类词汇：因果与转折
考博英语完形填空解题要点之一即搞清楚逻辑关系，承上启下。新东方在线考博频道总结了十大重要逻辑关系类词汇，希望考生能够认真理解和把握，争取攻克完形填空难关。
因果关系词：because; for; since; as; therefore; consequently; hence; so; thus; so…that; such… that; in order that; accordingly(因此;于是;相应地); due to; thanks to; as a result; in that(= because); now that(既然); because of; considering that, seeing that; in response to; for this reason;
转折关系词：but; however; on the contrary; contrarily; by contrast; in contrast; conversely; instead of ; rather than; unlike, on the other hand; unfortunately;