英语派生构词法词缀教案

1、学习必备欢迎下载Title: Derivation and Word SpellingClass style: NewPeriod: OneTeaching method: Examples and ExplanationTeaching tools:Exercise paperTeaching Goals: Let ss be familiar with common prefixes and suffixesTeach ss a good way to do word spellingImportant points: the meanings of different prefixes

2、or suffixesDifficult points: how to fill in word spelling with correct formsTeaching process:Step1: Leading-inAskingthe difficultiesss may meet in doing English reading, what causes thisdifficulty . 引出生单词对阅读的影响， 那我们应该如何去攻破这些生单词？以此引出词缀对于猜测单词意义的妙用。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

3、。 Eg. independent internationalStep2:Warming-upLets do some exercises to check up your understanding about itEX1. 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, the

4、n put him in a basin of warm water.3. Though he didntwin 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 h

5、e held From the exercises, we can see many prefixes. Then letsdo next exercises.EX2. Add a negative prefix to each group to create words with opposite meaning._-appearabilityagreehonest_-usualexpectedexperiencedwilling_-convenientcorrectcapablevisible_-possiblepolitemature_-stopsmokers_-understand t

6、akefortuneleadhappyluckyfortunatelyStep3: Expanding & ConclusionPrefixes change the meaning of the words.Do you know the meaning of the following prefixes? Can you list more words with these prefixes? Come on !EX3.re retellen-encouragepost-postwarpre pre-reading学习必备欢迎下载under-undergroundover-over

7、worksub-subwaySinoSino-AmericanStep4: 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sun sunnyadj. -able ( 加在名词、动词 后 ) “ 可 - 的 ”“能 - 的 ”knowablevaluableunforget_-ful (加在名词后 )“充满时

8、的量” handfulmouthful spoonful“富有 - 的”“充满 -的” carefulhopeful -lesscareless hopeless (use powermeaning)-iveactivecreativeattractive-alnaturalnationalenvironmental-ousdangerousadventurousfamous-ishchildishselfish-anAmericanIndian-y “多- 的” cloudywindyicyn. adj.n. +ness sadness illness darkness -ent -ence

9、 different _ patient _(absentpresentdependentsilent)-ant -anceimportant_ distant_ +ity able _ active _similar _equal _ v. n.+ment movement agreement government entertainment-t+ion-te -tion+ation学习必备欢迎下载act actioncelebrate celebrationinform informationcollectcommunicatetransportinventeducateexamineat

10、tractgraduateexploredirectpolluteadmireproductcontributeorganizeprotecttranslatecombinesuggestliberateexpressimpress表示“人”-erworkerwriterdancerplayer-orvisitordirectorinspectortranslator-antservantassistant-istartistpianistjournalistcyclist-ianmusicianhistoriancomedianlibrarianadv.-ly (区别 adj)-wards

11、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 dontbelieve him any longers.Explanation: 1、诚实 honest不诚实，否定 dis2、 “of”和“ his”说明缺名词3、确定词形 di

12、shonestyEX5. Word spelling （义性形）1.Tom didntpass 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

13、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.学习必备欢迎下载Step6:ConclusionTry to remember more words and derivation and get familiar with the method to do word spelling ,especially p