英语派生构词法--词缀教案.doc

Title: Derivation and Word Spelling Class style: New Period: OneTeaching method: Examples and Explanation Teaching tools: Exercise paper Teaching Goals:Let ss be familiar with common prefixes and suffixes Teach ss a good way to do word spellingImportant points: the meanings of different prefixes or suffixes Difficult points: how to fill in word spelling with correct formsTeaching process: Step1: Leading-in Today we will review a way of word-formation we have learned before -Derivation Firstly, I want to ask a question :What is derivation（派生）? Look at the blackboard ably disableunableable abably enable ability In conclusion,由一个词根加上前缀和（或）后缀构成一个新词。词缀有两个作用，形成新的词意和词性。 Eg. independent internationalStep2:Warming-up Lets do some exercises to check up your understanding about it EX1. Complete the following sentences by adding a prefix to the words.1. Rose said that it was _fair if Dad gave me a dictionary but gave her only a diary.2. The mother _dressed the baby, then put him in a basin of warm water.3. Though he didnt win any medals in the last sports meet, he was not _couraged.4. Its _possible for anyone to finish the work within such a short time.5. Please dont _understand what I have said.6. This cloth would be _visible to anyone who was _fit for the office he heldFrom the exercises, we can see many prefixes. Then lets do next exercises.EX2. Add a negative prefix to each group to create words with opposite meaning._-appear ability agree honest _-usual expected experienced willing happy lucky fortunately_-convenient correct capable visible _-possible polite mature _-stop smokers _-understand take fortune leadStep3: Expanding & ConclusionPrefixes change the meaning of the words.Do you know the meaning of the followingprefixes? Can you list more words with these prefixes? Come on !EX3.reretellen-encouragepost-postwarprepre-readingunder-undergroundover-overworksub-subwaySinoSino-American Step4: SuffixNow ,lets review some suffixes.Suffixes change the speeches of the words.EX4. 加后缀时的拼写规则：以不发音e结尾的去掉e再加后缀以辅音字母+结尾的变为i再加后缀 satisfysatisfied以重读辅元辅音节双写最后一个字母再加后缀 sunsunnyadj. -able (加在名词、动词后)“可-的” “能-的” knowable valuable unforget_-ful (加在名词后) “充满时的量”handful mouthful spoonful“富有-的”“充满-的”careful hopeful -less careless hopeless (use powermeaning)-ive active creative attractive -al natural national environmental -ous dangerous adventurous famous-ish childish selfish -an American Indian -y “多-的” cloudy windy icy n. adj.n. +ness sadness illness darkness-ent-ence different_ patient_ (absentpresentdependentsilent) -ant-ance important_ distant_+ity able_ active_similar_equal_v. n. +ment movement agreement government entertainment-t+ion-te-tion+ationactactioncollectinventattractdirectproductprotectsuggestexpressimpresscelebratecelebrationcommunicateeducategraduatepollutecontributetranslateliberateinforminformationtransportexamineexploreadmireorganizecombine表示“人”-er workerwriterdancerplayer-or visitordirectorinspectortranslator-ant servantassistant-ist artistpianistjournalistcyclist-ian musicianhistoriancomedianlibrarianadv. -ly (区别adj) -wards forwardsbackwardssunwardsnorthwards另外，-s-es-ing-ed-er-estStep5： How to do Word Spelling of NMET. 解题方法：1、阅读全句，正确理解句义及所缺词词义。 2、分析缺词担任的句子成分，正确判断词性。 3、判断缺词应采用的正确词形Eg: As a result of his _(不诚实)，his classmates dont believe him any longers.Explanation: 1、诚实honest不诚实，否定dis 2、“of” 和“his”说明缺名词 3、确定词形dishonestyEX5. Word spelling （义性形）1. Tom didnt pass the mid-term test because of his _（粗心）2. Although they are twins, they often have _ （分歧）in doing things together.3. More and more _ （西方人）are becoming interested in China.4. Learning to speak a foreign language can _（丰富） ones life.5. He is a doctor with _（耐心）.6. ._（不幸）, an accident happened to his brother.7. October 1st is our N_ Day.8. WTO stands for the World Trade O_9. Chinas athletes won the most medals in Doha A_ Games last year.10. He is a good p_. He often practices playing the piano. Step6:Conclusion Try to remember more words and derivation and get familiar with the method to do word spelling ,especially pay attention to the procedures.(meaningspeechform