本单元几个前 / 后缀的用法• 前缀①fore-:“ 事先;先前” forecast -预报 foretell -预知 forefather -祖先②re-: “又,再,重新” reform -改革 retell -复述 rebuild -重建③en-: “使...” ensure -确信 enrich -变富 enlarge -扩大• 后缀①-ly:“ ...地”一般作副词后缀 regularly- 定期地 hardly- 几乎不 ②-or: “...人,...者,...家” educator- 教育家 visitor- 游客 inventor- 发明家 ③ -( i)ty: (无特殊含义) reality -现实 ability -能力 possibility -可能性 necessity -必要性 ; 必需品1. The secret of his success is that he does everything ______. A. efficiently B. curious C. anxiously D. sufficiently2. What surprises me most is that the ____ is also a(an) ____. A. visiter; inventer B. visiter; inventor C. visitor; inventer D. visitor; inventor Verbs Nouns Adjs Phrases Words not in the syllabus Exercises Verbs• Indicate, ensure, reform, remain, deal with, cure, cheat, require, programme 1. indicate (v.) ___________ (n.)indicationBird flu indicates illness.Indicate: be a sign of…The smoke from the chimney indicated that someone was cooking.Indicate: to show somethingYou’d better indicate where we should go.Indicate: to point to /out 2. ensure (vt.): to make sureI tried to ensure ________ everybody understood the instruction.2) ensure sb. sth. 确保某人某事老师的推荐保你找到好工作 .Teacher’s recommendation ensures you a good job.我们应该保护自己免受欺骗。We should ensure ourselves against cheating.1) ensure that …3) ensure sb against … 保护某人免受…that 3. purchase (vt.&n.) 购买 _________ (n.)purchasermake a purchase____________a good purchase_____________purchasing power______________买东西便宜货购买力她在服装店里买了几样东西。 ( n. / v.)She made several purchases in the dress shop.She purchased something in the dress s...