《构成动词的后缀》PPT课件.ppt

1、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/-

2、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 names Katherine, generally _ (

3、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 _ (lon

4、g) 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 governme

5、nt of the people，by the people and for the people. 2. He fast up his coat and hurried out.,strengthstrengthen,fastfastened,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 .,normalhave been normalized,modernmodernize,terriblyterrified,三、按要求完成表格