构成动词的后缀.ppt

* -(e)n使成为，引起，使有 (1)某些形容词后-(e)n weak →weaken(使)虚弱，减弱 short→ shorten缩短 sharp→ sharpen(使)变锋利,明朗 (2)某些名词后-(e)n　 fright→ frighten（使）惊吓 length→ lengthen加长　　 strength → strengthen加强 2. –(i)fy 使……化，使成 beauty→ beautify美化　 pure→ purify提纯　 simple →simplify使简 quality→ qualify取得资格（或学历） class →classify.分类 3. –ize/-ise 做成，变成，……化 real→ realize意识到　 organ→ organize组织 apology →apologize道歉 modern→ modernize使现代化 normal→ normalize 使正常化 4. –ate 动词词尾，名词形式常为“-ation” decorate 装饰 communicate 交流 accumulate 积累 compensate 补偿 一、用括号内所给单词的正确形式填空。 1. Nothing could _______ (weak) his resolution to continue. 2. Her name’s Katherine, generally __________ (short) to Kay. 即时练习 weaken shortened 3. The application forms __________________ (simple). 4. He _________(quality) as a doctor last year. 5. All________ (donation) blood is tested for HIV and other infections. have been simplified qualified donated 6. We ________ (apology) for the late departure of this flight. 7. The article can _________ (long) out a little by adding some examples. apologize lengthen 8.________________(graduation) from Beijing University, my father has been working there. 9. His illness _________ (worse) during the night. 10.This knife needs _________ (sharp). sharpening Having graduating worsened 二、改错：每小题有一个构词法错误，请找出并更正。 1. We must strength government of the people，by the people and for the people. 2. He fast up his coat and hurried out. strength—strengthen fast—fastened 3. The company is investing plenty of money to modern its factories. 4. The father terribly his children with ghost stories last night. 5. Relations between our two countries normal . normal—have been normalized modern—modernize terribly—terrified *