Unit 5 Healthy Life 动词的前后缀我知道 教学课件

Unit5HealthyLife动词的前后缀我知道CONTENTSprefix/suffix:en1prefix:be2suffix:-fy34suffix:-ize/-ise英文构词法通过在词根、单词上加前缀或后缀构成一个新词派生法一个单词由一种词性转化为另一种或几种词性而词形不变的方法转化法由两个或者两个以上的单词连在一起合成一个新词合成法将单词缩写，词义和词性保持不变截短法英文构词法Head:改变单词意思前缀（prefixes)Tail:改变

单词性质后缀(suffixes)Doyouknow?prefix/suffix:en01prefix:enen

case（箱子）en

cage（笼子）en

cave

(洞穴）en

tomb

(坟墓）en

roll（卷轴）entrain(火车）

Let’sguess!P.S：en：作前缀仅用于动词前缀作后缀可作动词、形容词及名词词缀en:1.加在某些名词前构成动词“置于......之中”“使......上”“登上”prefix:enLet’sguess!P.S：en：作前缀仅用于动词前缀作后缀可作动词、形容词及名词词缀en:2.加在另一些名词前构成动词“用......做某事”“饰以......”

en

chain（链条）

enframe（框架）encloud(云）en

title(题目）en

lace（系带）en

trap(陷阱）

prefix:enReadingwillenlargeyourvocabulary.enlarge01Yourpolitenesswillendearthemtoyou.endear02Atnotimeshouldyouendangeryourselforothers.endanger03It’simportanttoencouragegreen,low-carbonwaysoflifeandproduction.encourage04en:3.加在某些形容词或名词前构成动词“使......成某种状态”“使......如同”“作为......”prefix:enenforceepidemiccontrolmeasuresenforce01letyourarmsenfoldusenfold02Ittakestheearthoneyeartoencirclethesun.encircle03encloseittoholdwaterenclose04en:4.加在某些动词前构成新的动词in之意只做加强意义prefix:en“使......变成”en:跟在形容词或者形容词比较级、名词后构成动词shorten、darken、deepen、broaden、sharpen、soften、widen形容词：lessen、worsen、形容词比较级Doyouknow?名词strengthen、heighten、frighten1.Iaskedthephotographerto________thepictureenlarge.sharplarge

2.Musiccan________yourlife.richjoy3.Canyou________thepencil?

4.Hewasbeginningto________thethebeautiesofnature.prefix:enprefix:be02prefix:be

become1.be:使...成为

Tobeyourself,isnottobelittleyourself,nottoovercorrect,nottofollowthetide,nottostandstill.做自己，不妄自菲薄，不矫枉过正，不随波逐流，更不固步自封。prefix:bebelittle

prefix:bebelittleWearewillingtobefriendtheweakandthepoor.我们愿意扶助弱者与穷人。prefix:be2.be:“加以/饰以...”蒙蔽、使......变暗becloud01注视、把.......视为behold02掩盖belie03加粉末bepowder04be:“加以、饰以.......”prefix:beExercises02bewarebefoolbefallbeguilesuffix:-fy/ify03suffix：-（i）fy/-fyclassify通知notify美化beautify简化simplify分类suffix：-（i）fy/-fy

tomake~

使......成为使......化excercises03uglifyglorifysolidifytestifyminifypurifyquanlitifymodifyrectifyterrifyunifyvivifysatisfyhorrifyidentifyelectrifydiversifycertifycodifyfortifyhumidifysuffix:-ise/-ize04suffix:-ise/-ize美式写法-ize英式写法-iseIfyouapologize,youofferan

apology.suffix:-ise/-ize

cause,makeorbecomesomething

使......成为......化变成......的状态suffix:-ise/-izeOneshouldnevercriticizeifoneisnotsureofone’sfacts.一个人如果对自己掌握的事实没有把握，就绝不该随便批评。critical→criticizesuffix:-ise/-izeIOCpresidentspeakshighlyofChina’sabilitytoorganizeOlympicGames.奥委会主席高度评价了中国承办奥运会的能力。organization→organizesuffix:-ise/-izeTaoguangmeansnottoadvertiseone’sstrongpoints,andnevertoboastaboutorshowoffone’stalentorskills.韬光即收敛自己的光芒，不以自身优长而炫耀、张扬。advertise1.Thehandsholdingtheearth__________takingactionswithlove.symbol

beauty

2.

Tryto________yourexplanationforthechildren.simpleminimumExercises3.Plantingflowersalongthestreetswillhelpto