1、Unit 3,Language in use,合成、派生构词法英语的构词法主要有合成法和派生法。合成指由两个或多个单词合成一个新词，而派生是通过添加前缀或后缀构成新词。1合成构词法合成构词法可以合成名词、形容词、代词、副词、动词等。如：,afternoonafternoonblackboardblackboard,handbaghandbagbathroombathroom,2派生构词法派生构词法的手段词缀主要有：(1)前缀：en-，in-，il, im-，un-，mis-，non-，re-，tel(e)-，ir-。如：,enable 使能够impossible 不可能的,inexpensiv
2、e 不贵的unnecessary 不必要的,misunderstanding 误解 non-smoker 不吸烟者,rewrite 重写irregular 不规则的,television 电视机illegal 不合法的,(2)后缀名词后缀：-er, -or, -ian, -ist, -ment, -ness, -tion, -th, -ty；形容词后缀：-ful, -less, -able, -ible, -al, -ive, -ous, -ly, -y, -ing, -ed；副词后缀：-ly。如：,teacher 教师musician 乐师government 政府truth 真相caref
3、ul 小心的,visitor 来宾scientist 科学education 教育safety 安全careless 粗心的,useable 可用的expensive 昂贵的friendly 友好的,comfortable 舒服的national 国家的famous 出名的carefully 仔细的,【同步互动】写出下列单词的合成词或派生词。sunshine_friendship_pancake_home_nation_rain_,sunshine,friendship,pancake,homeless,national,rainy,毕业感言,闪亮词汇,the school leaverspa
4、rty 毕业晚会；be proud for 因而自豪；be sorry to 对感到难过；thank sb.for 因感谢某人；stay in touch (with)(与)保持联系；help with 帮助；bestrict with 对严格；pay back 回报；in the future 将来,精彩句式,1Im very proud that I have been chosen to speak to you all,today.今天我很荣幸被挑选出来发言。,2 Well never forget the happy times we have spent in thesebuild
5、ings with you all.我们将永远不会忘记在这些教学楼里跟你们一起度过的快乐时光。,3Id like to thank three groups of people for the three thingsIve learn while Ive been a pupil at our school.作为我们学校的学生，我要因为我学会的三件事感谢三群人。,4 There are many people who Id like to thank.The first,is/are.我想感谢的人有很多。首先是,5Id like to thank you for.我要因感谢你们。,6A li
6、fe without old friends is like a day without sunshine.没,有老朋友的生活就像没有阳光的生活。,7They say that your school days are the best days of your life.,人们说学校生活是你一生中最好的时光。,8 So from the bottom of my heart, I thank you all and wishyou success for the future.我衷心地感谢你们大家，并祝你们将来成功。,假设你将代表你校毕业生在学校毕业典礼上发言，请你用,英语写一篇发言稿。,内
7、容包括：,1回顾美丽的校园、生动有趣的课堂、三年来的收获；2感谢老师的培养、父母的支持、同学的帮助；3祝愿(考生自拟，至少两点)。作文要求：,1语句连贯，词数 80 个左右；,2发言稿的开头和结尾已写好，不计入总词数。,Good afternoon, ladies and gentlemen, my dear teachers andfellow graduates.It is a great honour for me to make a speech onbehalf of the graduating class.,_Thank you for listening!,参考范文：,Good
8、 afternoon, ladies and gentlemen, my dear teachersand fellow graduates. It is a great honour for me to make aspeech on behalf of the graduating class.,It has been three great years for us to study in this beautifulschool.Our teachers always try to make their lessons lively andinteresting.We have lea
9、rned a lot over these years, but we couldhardly succeed without our teachers efforts, our parents supportand our classmates help.At this moment, I would like to thank allof you for what you have done for us.,I wish our school more beautiful and all of us have a,wonderful future!,Goodbye, our beautiful school, our dear teachers and our,friends.,Thank you for listening!,
