中考网整理了关于2019年北京市中考英语复习之简单逻辑，希望对考生有所帮助，仅供参考。

　　简单逻辑

　　分为因果，并列，转折，否定。

　　【例1】For more than sixty years, Aunt Marion didn’t and still don’t think of herself. ___ she is forced to come up to the front, my aunt will stand in the back in family photos, and she doesn’t think that her efforts have made much…

　　A. Unless

　　B. Although

　　C. Since

　　D. Before

　　【解析】A 句意：如果不强迫她来到前面，在找全家福时她会站在后面。unless除非，如果不。although虽然，尽管。since自从，既然；berore 在…之前。

　　【例2】No one could walk through any hallway passing Jeff’s smiling face.

　　A. for

　　B. from

　　C. with

　　D. without

　　【解析】D 最能凸显出 poster 效果的介词是without 否定介词与前面的no 相呼应，双重否定表肯定。