1、M5U3 Science and natureWord powerLearning aims：1. To be able to judge the meanings of some prefixes and suffixes;2. To enlarge and memorize some vocabulary related to the organs of the body. Important and difficult points：To learn to work out the meaning of a word by looking at its prefix or suffix.
2、【Preparation before class】1. Please answer the following questions by adding prefixes or suffixes to the following words.able agree appear lead novel regular respect1) You can not find your new pen. What happened to your pen?2) You want to get the book on the top shelf, but you are not tall enough.
3、Do you think you will be able to reach the book? 3) The two groups at the meeting dont agree with each other. They argued fiercely. So what is the problem between them called? 4) Many people respect Mr. Li and think he is a good man. He helps people out and is a good citizen and friend. So can you f
4、ind a word to describe Mr. Li? 5) Miss Wang has published several books. She loves her job writing novels. So what is Miss Wangs occupation? 6) You can not find the order of the numbers in a group of numbers. So can you think of a word to describe the order of the numbers? 7) Some ads say that if yo
5、u take their pills, you will be healthy, look younger, become smarter and sleep better. What do you think of such ads? 2. Please think of more words that can be added with these prefixes or suffixes.【Activities in class】Activity 1 Introduction1. How is the word independence formed?_2. What are the f
6、unctions of prefixes and suffixes?_Activity 2 PrefixesGuess what a word means by looking at its prefix. PrefixExample Meaning anti-anti-cloning, anticanceragainst, opposed todis-un-disappear, disagreeunfair, unwillingnot, opposite ofin-il-im-ir-incorrect, incomparableillegal, illogicalimmoral, immod
7、estirresponsible, irregular not, withoutpre-preview, preserveearly, beforepro-pro-cloningin favour of, supportingre-recreate, repeat, renewagainPracticeWork out the meanings of the following prefixes.PrefixExampleMeaningde-decompose, declassifymal-maltreatment, malnutritionnon-non-smoker, non-alcoho
8、lic, non-profitinter-international, interaction, interrupttele-telescope, telegram, telecommunicationtrans-transport, translate, transnationalmis-misunderstand, mislead, misdeedsub-subtitle, subway, submarineover-overeat, overwork, overacttri-triangle, tricycle, tricolorauto-autobiography, autoalarm
9、, automobileActivity 3 SuffixesGuess what a word means by looking at its suffix.Suffix ExampleMeaning-ablecomfortable, noticeable worthy of, able to be-fulcheerful, thoughtfulfull of, characterized by-istscientist, novelistsomeone who does something-lesshopeless, aimlesswithout-mentagreement, treatm
10、entindicate a state or condition-nessdryness, madnessindicate a quality, state or characterPracticeWork out the meanings of the following suffixes.SuffixExampleMeaning-alcultural, national, original-ioninvitation, competition, protection-shiphardship, scholarship, relationship-domfreedom, kingdom-is
11、hchildish, selfish-proofwaterproof, fireproof, soundproof-enwiden, sharpen, shorten-wardeastward, homeward, backward-likewomanlike, childlikeActivity 4 Organs of the bodyLook at the pictures of the major organs of the body in Part A on page 47. Pronounce each organ correctly and know what they each
12、refer to.PracticeRead the passage in Part B on page 47. Complete the passage individually.【Homework】Finish Part A1 on page 106 and B2 on page 107.Keys: 【Preparation before class】1) It disappeared.2) I am unable to do so.3) They disagreed.4) He is respectable.5) She is a novelist.6) It is irregular.7
13、) They are misleading.【Activities in class】Activity 1 Introduction1. prefix(in-) + root (depend) + suffix(-ence)2. Usually a prefix will change the meaning of word, while a suffix will change the part of Activity 2 PrefixesPrefixExampleMeaningde-decompose, declassifyapart, frommal-maltreatment, maln
14、utritionbadly, illnon-non-smoker, non-alcoholic, non-profitnotinter-international, interaction, interruptbetweentele-telescope, telegram, telecommunicationfar offtrans-transport, translate, transnationalacrossmis-misunderstand, mislead, misdeedwrongsub-subtitle, subway, submarineunderover-overeat, o
15、verwork, overacttoo muchtri-triangle, tricycle, tricolorthreeauto-autobiography, autoalarm, automobileselfActivity 3 SuffixesSuffixExampleMeaning-alcultural, national, originalof or concerning-ioninvitation, competition, protectionaction or condition of-shiphardship, scholarship, relationshipstate of being, skill-domfreedom, kingdomcondition or state of-ishchildish, selfishof the nature of-proofwaterproof, fireproof, soundproofprotect against-enwiden, sharpen, shortenmake or become-wardeastward, homeward, backwardin the direction of-likewomanlike, childlikesimilar to
