22构成动词后缀.ppt

扩大词汇有招数（22） 构成动词的后缀;-(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.;3. The application forms __________________ (simple). 4. He _________(quality) as a doctor last year. 5. All________ (donation) blood is tested for HIV and other infections.;6. We ________ (apology) for the late departure of this flight. 7. The article can _________ (long) out a little by adding some examples.;8.________________(graduation) from Beijing University, my father has been working there. 9. His illness _________ (worse) during the night. 10.This knife needs _________ (sharp).;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.;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 .;三、按要求完成表格。