Unit 5 Working the LandSection Ⅳ 单元要点复习Ⅰ.重点单词1．devote v．献身；致力；专心(1)devote time/effort/money...to... 为……付出时间/努力/金钱devote oneself to...献身于……；专心致力于……devoted adj. 忠实的；深爱的devotion n．挚爱；关爱；关照；奉献(2)表示“专心于，全神贯注于”的短语还有：be absorbed in，be lost in，be buried in，be occupied in，focus on，concentrate on，fix one's attention on2．shortage n．不足；缺少；短缺food/housing/water shortages 食物/住房/用水短缺 a shortage of funds 资金不足 short adj.不足的；缺少的；短缺的fall short of sth.未达到；不符合 be short of 缺乏，短缺in short 总之；简言之3．yield n．产量；产出；利润 vt.出产(作物)；产生(收益、效益等) vi.屈服；让步 vi.放弃；缴出yield (to sth./sb.) 屈服；让步 yield sth./sb. (up) (to sb.) 放弃；缴出 yield to sth.被……替代；为……所取代 a high crop yield 作物丰收 a reduction in milk yield 牛奶产量的降低4．convince vt. 使确信，使相信convince sb.of sth.使某人相信某事convince sb.to do sth.说服某人做某事be convinced of sth.相信某事be convinced that 相信某事convincing adj.令人信服的5．attain vt.(经过努力)获得；得到；达到(年龄、水平、状况等)attainable adj.可获得的；可达到的attainment n．达到；成就6．conventional adj.常规的；传统的；保守的7．assumption n．假定；设想；承担；担任make an assumption 假设；认为on the assumption that...在假定……的情况下 assume vt.假定；设想；承担assume that...假设……assume office 就职assume responsibility 承担责任assume an air/expression of...装出……的样子/表情assuming that...假定……(作连词用，相当于 if)8．overcome vt.& vi.战胜；克服；控制(感情)be overcome with 被(感情)所控制，受到情绪的极大影响9．expand vt.& vi.使变大；伸展expand (...) into(把……)扩展到expand on/upon 详述；充分叙述10．comprise vt.包括；包含；由……组成(不用于进行时) vt.是(某事物的)组成部分；组成；构成be comprised of ＝consist of 由……组成comprise＝ make sth. up 11．generat...
