派生(derivation)前綴(prefix)&后綴(suffix)派生(derivation)前綴(prefix)&后綴(1復(fù)習(xí)構(gòu)詞法之一——派生，了解前綴和后綴的作用學(xué)習(xí)常見的前綴和后綴應(yīng)用：①語法填空②閱讀理解中猜詞義學(xué)習(xí)目標(biāo)復(fù)習(xí)構(gòu)詞法之一——派生，了解前綴和后綴的作用學(xué)習(xí)目標(biāo)2able____________________________反adv.vt.反adj._______able__________________________3Lead-inableunableablyenabledisable反adv.vt.反adj.disabled派生法：由詞綴（分前、后綴）和詞根相結(jié)合構(gòu)成新單詞的方法。Lead-inableunableablyenabledis4加前綴：happy→

unhappy

加后綴：

develop→development既加前綴又加后綴：

forget

→

unforgetable派生詞加前綴：派生詞5前綴表否定：dis-,in-,im-,ir-,il-,un-,non-

dislikeincorrectimpolite

irregularillegalunlike

non-stopover-：超過，超出

overweightoverwork

oversleep前綴表否定：dis-,in-,im-,ir-,il-6mis-：錯(cuò)誤

misunderstandmisdore-：再，又

rewritereusepre-：先于...

previewprepayfore-：前,預(yù)先

foreheadforecastmis-：錯(cuò)誤7后綴1.

名詞后綴：表人：-er,-or,-istworker

actor

artistadj.→n.:-nesssadness

darknessv.→n.:-t/-te→-tionact→action

invent→inventionv.→n.:-mentdevelopment

movement后綴1.名詞后綴：82.形容詞后綴：-ful：充滿...的

carefulharmful

-less:缺少...的

carelessharmless

-ive：有...傾向的

effectiveattractive

-able：可以/能夠...的

buyableenjoyable2.形容詞后綴：9-ed：①(人)感到...的annoyed

②表被動(dòng)writtenwords

③表完成boiledwater-ing：①令人...的annoying②表主動(dòng)thedancinggirl③表進(jìn)行中boilingwater-ed：①(人)感到...的annoyed103.副詞后綴：-ly:quicklyequallyPS：并非全部-ly結(jié)尾的詞都是副詞：lovely可愛的friendly友善的likely可能的lonely孤獨(dú)的4.動(dòng)詞后綴-en：使...

deep→deepen

wide→widen有時(shí)en-：enableenlargeenrich3.副詞后綴：11思考：前綴和后綴分別改變的原詞的什么？possible→

impossibleinvent→

invention

前綴后綴詞性意思思考：前綴和后綴分別改變的原詞的什么？12Task1valuev.→________

有價(jià)值的entertainv.→________n.likelyadj.→反義：_______

readv.→________誤讀appearv.→________消失joyn.→________adj.broadadj.→________vt.拓寬，拓展helpn.→________adj.無助的valuable-mentun-dis-mis--fulen--lessadj.娛樂adj.不可能的v.v.快樂的，高興的Task1valuev.→________有價(jià)值13Task2分析畫線詞的詞性和詞義。

Thispossibilitywasunforeseeable，becauseitalmos

tneverhappened.unforeseeable

un

fore

see

able不預(yù)先看見可以…的adj.不可預(yù)見的方法:拆分單詞Task2分析畫線詞的詞性和詞義。unforeseeabl14常見的猜詞義題目:1.

TheunderlinedwordXXX

means/refersto/standsfor_________.2.

ThewordXXX

canbe

replacedby

“_________”.

3.What’sthemeaningofXXX?4.Whichofthefollowingistheclosestinmeaningto

XXX?常見的猜詞義題目:151.RememberthatPeopleonlinemaynotbewhotheyseem.Becauseyoucan'tseeorevenheartheperson.Itwouldbeeasyforsomeonetomisrepresent

himselforherself.Thussomeonewhosaysthat"sheisa12-year-oldgirl."couldreallybeanoldman.

A.makeawrongjudgement(判斷)about

B.understandsomebodywrongly

C.giveawrongdescription(描寫)of

D.formawrongopinionabout∨Task3mis-錯(cuò)誤representvt.陳/描述1.RememberthatPeopleonlin162.Don’tlistentohisnonsense.

A.meaninglesswords

B.

beautifulwords

C.meaningfulwordsD.unpleasantwords3.Helivedahardlifeinpre-liberation

days.

A.beforeliberation

B.

afterliberation

C.sinceliberationD.duringliberation

∨∨non-:非，無sensen.意義pre-:在...之前l(fā)iberationn.解放2.Don’tlistentohisnonsens174.Shopsareveryovercrowded

now.

A.busy

withmuchwork

B.havingtoomanypeople

C.fullofenergy

D.toocomplicatedtounderstand5.Hewasperformingandhistechniquewasunbelievable.

A.canbetrustedB.veryexcitingC.veryattractive D.difficulttobelieve;verygoodun-表否定believev.相信-ableadj.能...的∨∨over-過度crowdv.擁擠-edadj.4.Shopsareveryovercrowded18Task4運(yùn)用所學(xué)知識(shí)，完成語法填空練習(xí)。解題方法：

1、閱讀全句，正確理解句義及所缺詞詞義。

2、分析缺詞擔(dān)任的句子成分，正確判斷詞性。(如動(dòng)詞、名詞等)

3、判斷缺詞應(yīng)采用的正確詞形。(如動(dòng)詞的形式、名詞的單復(fù)數(shù)等)Task4運(yùn)用所學(xué)知識(shí)，完成語法填空練習(xí)。19

Withoutproperplanning,tourismcancauseproblems.Forexample,toomany________(tour)cancrowdpublicplaces,whicharenotso_________(enjoy)forpeoplelivingthere.

Iftourismcreatestoomuchtraffic,peopletherewillbecome_______(annoy)andunhappy.Theybeginto_______(like)touristsandtotreatthem_______(politely).Theyforgethow_______(help)tourismcanbetothecountry’seconomy.-ed-ableimpolitely-istsdis--fulWithoutproperplanning,20Itisimportanttothinkabouthow

tourismaffectsthepeopleofadestination

(目的地)country.The_______(develop)oftourismisquitebeneficial,sinceitcanhelpacountrykeepthecustomsandbeautythatare_______

(attract)totourists.

Itwillalsoadvancethewealthand________(happy)oflocalpeople. Toomuchtourismcanbeaproblem.Iftourismgrowstoo________(quick),peoplemustleaveotherjobstoworkinthetourismindustry.Thismeansthatotherpartsofthecountry’seconomycansuffer.-ment-ivehappiness-lyItisimportanttothinkab21Exerciseonthepaper.ExerciseonP28,Workbook.HomeworkExerciseonthepaper.Homework22Thanks!Thanks!23 Youthisakindofwealth.Itwillgradually______(appear)withtimeelapsing(流逝).Whatcanwedoisnottowastetheyouth.Inmyopinion,foronething,itistorealizeourvalue,ouridea.Whenweareyoung,wehavethebestconditionsinourlives,goodmemories,good________(understand)andsoon.

Weshouldmakefulluseoftheseconditionstostudymore.

Foraother,weshould______

(rich)ourlives,makethem______(color)andandgatherasmanydifferentexperiencesaspossible.1dis--ingsen--ful Youthisakindofwealth.It24

Teenagers’secretsshouldbekepttothemselves,andnooneelse,

includingtheirparents,hastherighttosticktheirnosesintothechildren’sprivatelife.Asweknow,teenagersaregoingthroughaspecialperiodof_________(develop)bothphysicallyand_________(psychological).Theyarecuriousaboutandpuzzledbythe

_________

(expect)changesintheirbodyandmind.What’smore,exposedtoaworldofadults,itisonlytoo_________(nature)forthemtobeginimitatingadults’behaviorinsecret.Boysbegintosmokeandgirlsbegintospendtimedoingtheirhair.2unexcepted-ment-lynatur