Unit2 Vocabulary
1. differ vi. different, difference    观察示例:  In pairs, look at these pictures and discuss which ones are natural clones and which ones are man-make. Think about how they differ.两人一组, 观察图片并讨论哪些是自然无性繁殖, 哪些是人工。思索它们区分。      
[考点] differ意为“不一样；相异”, 可组成短语differ from ...与……不一样; differ in ... 在……方面不一样。[考例] Leaves are found on all kinds of trees, but they differ greatly ____ size and shape.  (上海)                   A. on  B. from C. by  D. in [点拨] differ in size and shape在大小和形状上不一样。