复习时需要注意的要点
(1)表示选择关系的连词，连接的双方只取其一。常用连词有or,either...or,otherwise
例如：
1)YoucangotoBeijingeithertodayortomorrow
2)Youmustgetupearlyoryouwon'tcatchtheearlybus.
(2)表示转折关系，连接的双方构成对比，意义上有转折。常用连词有but,however,while,only
例如：
1)Hisbrotherisfondoffootballwhilehelikesbasketball.
2)YoucanwatchTV,butyoumustfinishyourhomeworkfirst.
(3)表示联合关系，联合的双方是对等的，意义上趋向一致。常用连词有：and,both...and,neither...nor,notonly...butalso,aswellas,togetherwith
例如：
1)TostudyEnglishwell,weneedbothdiligenceandcareful.
2)Thathorseisnotonlytheyoungestamongthefive,butalsorunsthefastest.
(4)表示因果关系，连接的双方，互为因果，或者前因后果，或者前果后因。常用的连词有：for,so,therefore
例如：
1)Itmusthaverained,forthegroundiswet.
2)Youareintheright,thereforetheyshouldsupportyou.