Unit 5 Meeting your ancestors 1.alternative(n.) 可能的选择 (adj.) 供选择的;其他的2.interrupt(vt.& vi.) 打断……讲话;打岔;暂时中断或中止3.acute(adj.) 有观察力的;敏锐的;严重的;深刻的4.assume(vt.) 假定;设想5.significance(n.) 意义;意思;重要性;重要意义6.somehow(adv.) 以……方式;不知怎么地7.delete(vt.) 删;删除8.academy(n.) 学院;学会;学术团体;院校9.applaud(vi.& vt.) 鼓掌欢迎;赞赏10.accelerate(vi.& vt.) 加速;促进11.arrest(vt.) 逮捕;吸引(n.) 逮捕;拘留12.starvation(n.)挨饿;饿死→starve(vi.)挨饿;饿死13.accuracy(n.)精确;准确→accurate(adj.)准确的;精确的14.messy(adj.)凌乱的;脏的→mess(n.)凌乱;脏15.analysis(n.)分析→analyses(pl.)→analyse(vt.)分析→analyst(n.)分析者,化验员→analytic(al)(adj.)分析的,解析的1.regardless_of 不管;不顾2.at_most 至多;最多3.cut_up 切碎4.fed_up_with 受够了;饱受;厌烦5.look_ahead 向前看;为将来打算6.date_back 追溯到……7.concentrate_on 集中 8.search_for 寻找9.take_turns_to_do_sth. 轮流干某事10.can’t/couldn’t_help_doing 禁不住干某事1.Yes,indeed,as the botanical analyses have shown us,all the fields around here used to be part of a large shallow lake.很对。正如植物学的分析结果已经告诉我们的,这儿四周曾经是一个很大的浅水湖。名师指津:as 引导的非限制性定语从句,as 指代整个主句的内容,意为“正如”。例句仿写:正如古训所说“人不可貌相,海水不可斗量”。(2013· 新 课 标 卷 Ⅰ )“You can’t judge a book by its cover , ” 1as_the_old_saying_goes.2.If only she had looked ahead and planned better this year!她今年要是早有预见,计划得更好些就好了!名师指津:此句用了虚拟语气。if only...意为“要是……就好了”。例句仿写:看看我所处的困境,要是我接受他的建议就好了!Look at the trouble I am in.If_only_I_had_followed his advice!3.She had almost reached her destination when a delicious smell arrested her progress and she stopped.快到达目的地的时候,一阵香气扑鼻,她不往前走了,停了下来。名师指津:句中“had don...