1、Unit3 Science and natureWord power Prefixes and suffixesOrgans of the bodyPrefixes and suffixesappear,novel,regular,respectWe are going to have some questions.Please use these words to help you,but you need to add some letters to the words first.1)You cannot find your new pen.What happened to your p
2、en?It disappeared2)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 find a word to describe Mr.Li?Respectable3)Miss Wang has published several books.She loves her job writing novels.So what is Miss Wangs occupation(职业)?She is a nove
3、list4)You cannot find the order of the numbers in a group of members.So can you find a word to describe the order of the numbers?irregularindependenceindependenceprefix(前缀)root(词根)suffix(后缀)Prefix:a group of letters that is added to the beginning of a word to change its meaning.Suffix:a letter or a
4、group of letters added to the end of a word to make a different word.Attention!Usually a prefix will change the meaningof word,while a suffix will change the part of speech of a word.Sometimes you can guess what a word means by looking at its prefix or suffix.Look at the examples and work out the me
5、anings.Prefix ExampleMeaning anti-anti-cloning,anticancer against,opposed todis-un-disappear,disagreeunfair,unwillingnot,apposed ofin-il-im-ir-incorrect,incomparableillegal,illogicalimmoral,immodestirresponsible,irregularnot,withoutpre-preview,preserveearly,beforepro-pro-cloningin favour of,supporti
6、ngre-recreate,repeat,renewagainSome other commonly used prefixesPrefix ExampleMeaning de-mal-non-notdecompose,declassifymaltreatment,malnutritionnon-smoker,non-alcoholic,non-profitapart,frombadly,illinter-international,interaction,interruptbetweentele-telescope,telegram,telecommunication far offtran
7、s-transport,translate,transnationalacrossmis-misunderstand,mislead,misdeedwrongsub-subtitle,subway,submarineunderover-overeat,overwork,overacttoo muchtri-triangle,tricycle,tricolor threeauto-autobiography,autoalarm,automobileselfSuffixExampleMeaning-ablecomfortable,noticeable worthy of,able to be-fu
8、lcheerful,thoughtfulfull of,characterized by-istscientist,novelistsomeone who does something-lesshopeless,aimlesswithout-mentagreement,treatmentindicate a state or condition-nessdryness,madnessindicate a quality,state or characterSome other commonly used suffixes-alcultural,national,originalof or co
9、ncerning-ion invitation,competition,protection action or condition ofstate of being,skill-shiphardship,scholarship,relationship-domfreedom,kingdom,condition or state ofof the nature of-ishchildish,selfish-proof waterproof,fireproof,soundproof protect against-enwiden,sharpen,shortenmake or become-war
10、d eastward,homeward,backward in the direction of-likewomanlike,childlikesimilar toDo you think we should protect nature?Complete what an environmentalist is saying below.Use the words from the box.disrespect,hopeless,illegal,uncertain,understandableI think cutting down trees should be made(1)_ and t
11、ighter laws should be introduced.So many people are showing their(2)_ for nature;they dont seem to care that they are destroying the environment.Sometimes I think we are fighting a(3)_ battle against people who just wont listen.I know scientists have worked hard to achieve scientific breakthrough bu
12、t its(4)_ whether theyll succeed totally.Although its(5)_ that they want to advance technology,I think some things are best left the way they are.illegaldisrespecthopelessuncertainunderstandableOrgans of the bodylungsliverheartstomachkidneysKey to Exercise B(1)Brain (2)heart (2)(3)liver (4)lungs (3)
13、(5)stomach (6)kidneysHomework1.Complete Part C on page 47 in pairs or groups.2.Read the article in Part A on page 113 and do Par B on the same page.Word power1.Work out the meaningwork out1)计算出,制定出,结果为我们准备制订一个新计划谁能解答出这道物理题?We are going to work out a new plan.Who can work out this physical problem?2)
14、:exercise 锻炼,运动work on从事某项工作,继续工作work at学习,研究,致力于;在.下功夫他正在撰写一本新词典.我正在努力学习He is working on a new dictionary.Im working at my study.2.opposed toopposed adj.反对的，对抗的，对立的 opposed to反对;与相对立我们坚决反对在国与国之间实行强权政治.We are firmly opposed to the practice of power politics between nations.真理是谬误之对.Truth is opposed t
15、o falsehood.opposed to=in opposition to3.opposite ofopposite n.对立面，对立物Whats the opposite of tall?opposite1)adj.对面的，相对的on the opposite side of the street2)adj.相反的，对立的go in the opposite direction朝相反的方向去3)prep.在的对面live opposite the post office住在邮局对面4)adv.在对面He stood opposite.4.in favor ofin favor of1)赞
16、同，支持be in favor of sbs suggestion2)有利于The score was 2 to 1 in favor of the guest team.比分为二比一，客队获胜.:agree with,supportfavor1)n.好感，欢心win sbs favor 赢得某人的欢心2)n.恩惠do sb.a favor=do a favor for sb.帮某人一个忙May I ask a favor of you?请您帮个忙行吗?favorable adj.赞成的，有利的He is favorable to our plan.a favorable situation他
17、赞成我们的计划有利的形势5.worthy ofbe worthdoing sth.sth.be worthyof being doneto be doneof sth.*be worth后可跟表示价值的名词,而be worthy后不可以The city is worth visiting.The city is worth a visit.The city is worthy of being visited.The city is worthy to be visited.The city is worthy of a visit.The book is worth five yuan.Th
18、e book is worthy of five yuan.X6.characterizecharacterize vt.表示的特性，成为的特性be characterized as a man of principle.被描绘成一个有原则的人characteristic n.特性，特征the characteristics of the present situation目前形势的特点7.carecare1)vt.介意I dont care how far Ill have to go.无论走多远，我都不在乎.2)vi.关心，担心，计较(for/about)care for sbs safe
19、ty 为某人的安全担心He doesnt care about his clothes.他不讲究衣着I dont much care about going.我不太想去.3)vi.喜欢，愿意(for/to do)Would you care for a game of table-tennis?I dont care to go there.我不愿到那儿去.8.achieveachieve vt.赢得，取得，实现We have achieved success in developing the product.achievement1)cn.业绩,成就,成绩Winning three gol
20、d medals is a remarkable achievement.2)un.完成,达到,成功celebrate the achievement of ones goals.achievable adj.能达到的9.They want to advance technology.advance1)推进，促进advance the movement to a new stage把运动推到一个新阶段advance the growth of wheat促进小麦生长2):put forward 提出(建议等)He advanced his point of view in the meetin
21、g.3)提前The date of the meeting has been advanced from Friday to Wednesday.advanced adj.高级的，先进的10.be made up ofbe made up ofbe made ofbe made frombe made intobe made in由组成由制成(看得出原材料)由制成(看不出原材料)被制成在制造make 短语make yourself at homemake the best of:make up formake fun of请不要客气make full use of弥补，补偿取笑11.The b
22、ody can run well.run1)vi.(机器等)运转;(工作等)进行The engine runs well.2)vt.开办，经营run a night school/a factory 开办夜校/工厂1)run across2)run after3)run away with4)run into5)run out of用完撞到，陷入携(某物)潜逃追求，跟踪偶遇12.be similar tobe similar to与相似A is similar to B in man ways.similarity n.类似点，类似物Are there any similarities bet
23、ween the two?13.newlynewly-builtnewly-marriednewly-bornnewly-published新建的新婚的新生的新出版的14.think ofasthink oflike看作，认为是think of oneself as/like a common solider把自己看成普通战士相关结构：think twicethink much ofthink little ofthink aloudthink over重新考虑认为很不错认为没什么了不起自言自语15.majormajor1)主要的,重要的,一流的major industriesa major problema major painter 2)(数量，程度，价值)较大的 不与than连用a major earthquake a major operation3)主修的Physic was his major subject in the university.4)n.主修科目，主修学生He is an English major.5.v.主修(in)He majors in physics.16.robberyrobbery n.抢劫，盗取robber n.强盗，盗贼rob vt.抢劫，盗取rob sb.of sth.steal sth.from sb.抢/剥夺某人某物偷某人的东西
