1、Unit 3Prefixes and suffixes Organs of the body1 Quiz Fill in the blank with proper words.1.My pen _.I cannot find it.(appear)2.The book is on the top shelf.Im so short that I am _ to reach it.(able)3.Its _ for him to catch the early bus.Because he got up too late this morning.(possible)4._ leads to
2、quarreling.(understand)disappearedunableimpossibleMisunderstanding25.Mr Li is _.He is always helping others and is a good citizen.(respect)6.Miss Wang is a _.She loves her job writing novels.(novel)7.The teachers words were a great _ to him.(encourage)8.Hangzhou is so _that it attracts many visitors
3、.(beauty)9.There was some _ about the age of the mummies.No one knew the exact time.(agree)respectablenovelistencouragementbeautifuldisagreement3 disagreementprefix(前缀前缀)root(词根词根)suffix(后缀后缀)Prefix:a group of letters that is added to the beginning of a word to change its meaning.Suffix:a letter or
4、a group of letters added to the end of a word to make a different word.4Prefix Example Meaning anti-anti-cloningagainst,opposed todis-un-disappearunfairnot,opposite ofin-il-im-ir-incorrectillegalimmoralirresponsiblenot,withoutpre-previewearly,beforepro-pro-cloningin favor of,supportingrecreateagain
5、re-More examples5Suffix Example Meaning-ablecomfortable worthy of,able to be-fulcheerfulfull of,characterized by-istscientistsomeone who does something-lesshopelesswithout-mentagreementindicate a state or condition-nessdrynessindicate a quality,state or character6Lets see who can list more examples
6、with the prefixes and suffixes.7Prefix ExampleMeaning de-mal-non-notDecompose,declassifymaltreatment,malnutritionnon-smoker,non-alcoholic,non-profitapart,from分分开开解散解散badly,illinter-international,interaction,interruptbetweentele-telescope,telegram,telecommunicationfar off远程远程8Prefix ExampleMeaning tr
7、ans-transport,translate,transnationalacrossmis-misunderstand,mislead,misdeedwrongsub-subtitle,subway,submarineunderover-overeat,overwork,overacttoo much过多过多9Some other commonly used suffixes-alcultural,national,originalof or concerning-ioninvitation,competition,protectionaction or condition ofstate
8、of being,skill-shiphardship,scholarship,relationship-domfreedom,kingdom,condition or state ofof the nature of-ishchildish,selfish10-proof waterproof,fireproof,soundproofprotect against-enwiden,sharpen,shortenmake or become-wardeastward,homeward,backwardin the direction of-likewomanlike,childlikesimi
9、lar to11Lets fill in the blanks with what we learned just now.disrespect hopeless illegal uncertain understandableI think cutting down trees should be made _and tighter laws should be introduced.So many people are showing their _ for nature;they dont seem to care that they are destroying the environ
10、ment.Sometimes I think were fighting a _battle against people who just dont listen.I know scientists have worked hard to achieve scientific breakthroughs but its _whether theyll ever succeed totally.Although its _ that they want to advance technology,I think some things are best left the way they ar
11、e.illegaldisrespect hopeless uncertain understandable 12Are you familiar with your body?Work in pairs and name the parts of your body as many as you can.hairfootankleearforeheadeyebroweyenecknose mouthhandarmlegfingerwristtoekneeshouldereyelid13Can you name more parts of your body?Lets try.throat st
12、omachlungheartlivergallbladderlarge intestinealvinetrachea14Activity 1If you compare our body to our school life,If you compare our body to our school life,you will be amazed how similar they are!you will be amazed how similar they are!15kidneykidneyWhat are their functions?braibrain nlungslungslive
13、rliverstomachstomachheartheartPass the blood around the bodyControl the other organsStore the food we eatUse the oxygen we breatheClean the bloodRemove waste products from the blood and produce urine16Control the other organsClean the bloodControl the other organsbrainPass the blood around the bodyh
14、eartUse the oxygen we breathelungsClean the bloodliverStore the food we eatstomachRemove waste products from the blood and produce urineTeacherStudentNotebookSchool lifekidney知识知识HeadmasterCleaners and security guardsBODY VERSUS SCHOOLBODY VERSUS SCHOOLRemove waste products from the blood and produc
15、e urine(oxygen)17Fill in the blanks with the names of body parts.Think of the body like a school.At the top of the school is the headmaster,known as the _.This is the organ that controls the rest of the organs,just like the headmaster controls the school.After this comes the _.It is like a teacher.T
16、his organ passes the blood around the body so it can run well.This is similar to the knowledge a teacher gives to students.Next is the _,which is the student.This organ is the only one that can re-grow itself.It helps to clean the blood.This is like knowledge students get from teachers.Students alwa
17、ys grow with newly found knowledge.The _are the organs of the body that use the oxygen we breathe.Think of the oxygen as the life you lead at school.The _ is very useful as it stores the food we eat until we can digest it properly.This is similar to the learning process.We store the information unti
18、l we need to use it.So this organ is like a notebook.The _are the organs that brain heart liver lungsstomach kidneys18remove waste products from the blood and produce urine.They are like the cleaners,repairmen and security guards who look after your school.The last major organ is the bladder.This is
19、 the organ that removes our waste.Not all the information you get at school is kept.The undesirable elements are removed.Now you can see how similar your school life is to your body and you can look after them both.191.Revise what we learned in this class.2.Find out from your Biology teacher the names of other major parts of the body.Then find their English names in your dictionary.Homework:2021
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