Unit 2 Exploring English Using language 课件-高中英语外研版（2019）必修第一册

1、Word FormationUsing Languageword formation(构词法)adding a prefix or suffix派生法combining two or more words合成法changing the part of speech 转化法 (词性转化)abbreviating 首字母缩略法前缀后缀Part 1 abbreviating (首字母缩略法)定义：即用单词首尾字母组成一个新词。有两种读音，一是各字母分开读；二是作为一个单词读。WHOWorld Health OrganizationInformation TechnologyVery Importan

2、t PersonbrivietAcquired Immune Deficiency Syndrome获得性免疫缺陷综合症 edzITAIDSVIPPart 2 changing the part of speech (转化法)定义：将一种词性的词转化为另一种词性，而词形不变。The little girl didnt dare to face the mouse so she covered her face with her hands.名词转化为动词测评P371.身体部位When the famous pianist came in, all people eyed her.Many of

3、 his friends backed his plan.2.身份职位She nursed her husband back to health. The dog was guarding its owners luggage. （同一个词，有不同的词性）Part 3 combining two or more words (合成法)定义：是指用两个或两个以上的词构成新词的构词法。合成词拆开后，仍有各自的意义。classroomreadingroomblackboardplayground蜜月婆婆，岳母安眠药梦游两面派教室阅览室黑板球场honeymoonsleeping-pillsmother

4、-in-lawsleep-walkbutterfly n.note-taking n.white-haired manafter-school activitywell-behaved childrenfive-year-old sondouble-dealer免税店 heartbrokendutyfree shopPart 4 adding a prefix or suffix (派生法)定义：在词根上加上前缀或后缀，构成新词。前缀和后缀有一定的含义或功能，有助于推测新词的词义。reinventunfamiliarinvisibleinformalunhappydisappeardisagr

5、ee前缀一般会改变词义，而不造成词性的变化。后缀一般会改变词性，意思与词根相近。creatororganizerimpressioneagernessargumenttraditionalcreativeactually只有少数前缀能引起词性的变化。en- large enlarge courage encourage常用前缀1.常见的表否定意义的前缀 (测评P38)un-, in-, dis-, im-, il- ir- un-in- dis-im-(illegal)unawareuncomfortableunforgetableinvisible informal incorrectdis

6、honestdislikediscourageimpossibleimpatientimpolite(irregular)2.re-“再，重新”reinvent, reread, rewrite1. It is _ (certain) fun but the lifestyle is a little unreal. (2017全国卷, 70) 2. But then we got an official letter and we were blown away. We are so proud of her. Its _ (wonder).” (2019年全国卷2, 70) 3. She

7、is determined to carry on with her _ (educate)(2017全国卷，66)5. (Luck), Andy didnt get the job.4. For my homework tonight, we have to write a _(describe) of the street where we live.ExercisedescriptionUnluckilywonderfulcertainlyeducationlets make a conclusion构词法首字母缩略法转化法合成法派生法1.definition：2.examples: 1.definition： 2.examples: 身体部位: eye; back; shoulder.身份职位: nurse; guard.1.definition：2.examples:readingroom; mother-in-law; well-behaveddefinition：前缀：后缀：将一种词性的词转化为另一种词性，而词形不变。用单词首尾字母组成一个新词。WTO;VIP; AIDS是指用两个或两个以上的词构成新词的构词法。合成词拆开后，仍有各自的意义。在词根上加上前缀或后缀，构成新词。改变词义， 词性，改变词性， 词