2020-2021学年新教材高中英语UNIT5HumansandnatureSectionⅡ突破语法大冲关教师用书教案北师大版必修第二册

-1-UNIT5HumansandnatureUNIT5Humansandnature构词法——派生[观察例句]11．Heencouragedencouragedmetobeawriterinthefuture.22．Inthepastfewyears，Lucyhasformedthehabitofkeepingasupplyofcandlesincaseofapowerfailurefailure.33．Itisnaturalnaturalthatyoungpeopleareoftenuncomfortableuncomfortablewhentheyarewiththeirparents.44．Today'sexperiencetaughtmesomevaluablevaluablelessonsinmylife.55．IlovechildrenverymuchbecauseIalwaysfeelthattheybringgreathappinesshappinessandexcitementexcitementtomylife.[归纳用法](一)前缀11．表示否定意义的前缀(1)un­unfortunate不幸的unable不能够的uncomfortable不舒服的(2)in­inconvenient不方便的incorrect不正确的informal不正式的(3)im­impolite不礼貌的imperfect不完美的impossible不可能的(4)il­illegal违法的illogical不合逻辑的(5)ir­irregular不规则的