2023年英语派生构词法词缀精品讲义.pdf

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1、学习必备 欢迎下载 Title:Derivation and Word Spelling Class style:New Period:One Teaching 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 spelling Important points:the meanings of different prefix

2、es or suffixes Difficult points:how to fill in word spelling with correct forms Teaching process:Step1:Leading-in Asking the difficulties ss may meet in doing English reading,what causes this difficulty.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

3、词性。Eg.independent inter national Step2:Warming-up Let s 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,th

4、en put him in a basin of warm water.3.Though he didn t win any medals in the last sports meet,he was not _couraged.4.It s _possible for anyone to finish the work within such a short time.5.Please don t _understand what I have said.6.This cloth would be _visible to anyone who was _fit for the office

5、he held From the exercises,we can see many prefixes.Then let s 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 po

6、lite mature _-stop smokers _-understand take fortune lead Step3:Expanding&Conclusion Prefixes 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 retell en-encourage post-postwar prepre-reading 学习必备 欢迎下载 under-u

7、nderground over-overwork sub-subway SinoSino-American Step4:Suffix Now,let s 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 sunny adj.-able (加在名词、动词后)“可-的”“能-的”knowable valuable unforget_-f

8、ul (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

9、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 +ation 拼写规则以不发音结尾的去掉再加后缀以辅音字母结尾的变为再加后缀读全句正确理解句义及所缺词词义分析缺词担任的句子成分正确判断词必备欢迎下载学习必备 欢迎下载 act

10、action collect invent attract direct product protect suggest express impress celebratecelebration communicate educate graduate pollute contribute translate liberate informinformation transport examine explore admire organize combine 表示“人”-er workerwriterdancerplayer-or visitordirectorinspectortransl

11、ator-ant servantassistant-ist artistpianistjournalistcyclist-ian musicianhistoriancomedianlibrarian adv.-ly (区别 adj)-wards forwardsbackwardssunwardsnorthwards 另外，-s-es-ing-ed-er-est Step5：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 h

12、is _(不诚实)，his classmates don t 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 dishonesty EX5.Word spelling（义性形）1.Tom didn t 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

13、 becoming interested in China.4.Learning to speak a foreign language can _（丰富）one s 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.China s athletes won the most medals in Doha A_ Games last year.10.He is

14、a good p_.He often practices playing the piano.拼写规则以不发音结尾的去掉再加后缀以辅音字母结尾的变为再加后缀读全句正确理解句义及所缺词词义分析缺词担任的句子成分正确判断词必备欢迎下载学习必备 欢迎下载 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)Step7:Homework Student book1B P158 Writing design on the bb Derivation 意义：作用：词义 词形 Eg:in dependent inter national Word Spelling 方法：1、-2、-3、-Eg:As a-able 拼写规则以不发音结尾的去掉再加后缀以辅音字母结尾的变为再加后缀读全句正确理解句义及所缺词词义分析缺词担任的句子成分正确判断词必备欢迎下载学习必备 欢迎下载 拼写规则以不发音结尾的去掉再加后缀以辅音字母结尾的变为再加后缀读全句正确理解句义及所缺词词义分析缺词担任的句子成分正确判断词必备欢迎下载