精选优质文档-倾情为你奉上Unit 5 Meeting your ancestors单元要点预览(旨在让同学整体了解本单元要点)词汇部分词语辨析1. used to / would 2. interrupt / disturb / bother 3. assume / suppose / presume 词形变化1. alternative n.c替换物 adj.选择性的,二中择一的alternatively adv. 作为选择,二者择一2. accuracy n.u精确性,正确度accurate adj. 正确的,精确的inaccurate adj.不准确的accurately adv. 正确地,精确地inaccurately adv. 不准确地3. assume vt.假定;设想;采用;承担assumption n. 假定,设想,假装,就职assumed adj. 假定的,假装的,装的4. analysis n.c分析,分解analyse(ana