Unit4DoityourselfStudyskillsTheboyslikeplayingbasketball.Theyareactiveindoingsports.Buttheyare_________instudy.notactiveinactivehappyunhappynot

happyIwillfinishmyhomeworkasmuchaspossible,butit’s____________formetofinishallofit.impossiblenotpossibleMillie’smomisonbusiness(出差).Herbedroomis________.Canyouhelphermaketheroomtidy?untidy

not

tidyuntidypossible

impossiblehappy

unhappyactive

inactiveOpposites(反義詞)tidy

prefixes前綴Wecanadd_____________________beforeanadjectivetoexpresstheopposite(相反的)meaning.“un-”,“im-”,“in-”Formostoftheadjectives,weadd“un-”tomakeitopposite.friendlyhappycomfortablecertaintidyablefairluckyusualunfriendlyunhappyuncomfortableuncertainuntidyunableunfairunluckyunusualRules

Iftheadjectivebeginswith“p”,weusuallyadd“im-”beforeit.

politepossiblepatientpossibleimpoliteimpossibleimpatientimpossibleRulesBut:pleasantunpleasantexpensivecorrectactivedirectinexpensiveincorrectinactiveindirectRules

Butsomeadjectivesarespecial.Youshouldadd“in-”beforethemtomaketheoppositemeaning.1.____friendly2.____happy3.____correct4.____polite5.____comfortable6.____expensive____healthy8.____possible9.____tidy10.____certain11.____patient12.____able13.

7.Checkyourmemory!unununununununimimiminin___regular14.___honestirdisWecanadd

beforeanadjectivetoexpresstheoppositemeaning.“ir-”or“dis-”1.Annie:Doyouspendalotoftimedoingoutdoorsports?Simon:Sure.It’susualformetostayathomeallday.2.Sandy:Ourneighbournextdoorisputtingsomethingonthewall.Mum:It’spossibletosleepwithallthatnoise.unusualimpossible

Readtheconversation.Addthecorrectprefixestotheadjectivessothatallthesentencesmakesense.3.Millie:Areyouabletofixyourbicycle,Andy?Andy:No.I’mcertainthatIcanfixitmyself.4.Mum:Suzy,yourroomisreallytidy—thingsarealloverthefloor.Suzy:Sorry,Mum.I’lltidyuprightnow.uncertainuntidy

DiscussionHowshouldwebehaveinclassorinschool?Weshouldbe_____________toothers.Weshouldbe_________________totheclassmatesinneed.Weshouldnotbe_________insports.Wehadbetternotmakeourclassroom___________.Wehadbetternotwear______________________clothesatschool.friendly/kindpatient/helpfulinactiveuntidyuntidy/uncomfortable

TommyandLeoaretwinbrothers.Theylooksomuchalikethatpeopleare______totellthematfirstsight.Ifoneknowsthemwell,it’seasytotellthemapart.Tommylikessmiling.Heispatientandwillingtohelpothers.However,Leolooks________,forhe______smilingandnevergreetsothers.Whenhisclassmatesaskhimquestions,heis_______and_______toanswerthem.Itis______________________forLeotobehavethatway.Leolooks___________________becausenoonewantstomakefriendswithhim.Hethinksitis_____forhisclassmatestotreathimsocoldly.IfLeostopsdoingthose_______things,peoplewillfindit_______todifferentiateLeoandTommyunfriendlyunhappy/uncomfortableimproper/impolite/incorrectunfair

dislikesimpatientunwillingunableimproperimpossibleFillintheblankswithadjectiveswithprefixesun-,in-,im-anddis-.132456789

Playingagame:amagicboxHereisamagicboxwithninecards,andundereachcardthereisataskforyoutofinish.Chooseanyofthemandfinishthetask.Afteryoufinishallthetasks,thereisabigsurpriseforyou!It’s___________(舒服的)tositinit.It’s________________(不舒服的)tositonit.comfortableuncomfortableTheboyisnotverystrong,forheisalways___insports.A.inactiveB.activeAnotdirect_______notkind_______notpossible_______indirectunkindimpossibleunusualThesnowissoheavy.Itis_________toseesuchheavysnow.Thatis,thesnowismuchheavierthanusual.

Thisisn’tanimportantthing.

=

Thisisan________thing.

unimportantItisimcorrecttoreadsomeoneelse’sletter.2.Davidoftensaysbadwordstoothers,soheisinwelcome.3.It’sinfriendlytothrowstonesatbirds.incorrectunwelcomeunfriendly

Correctthemistakes:Canyouremembertherules?Wecanadd_________________________(before/after)anadjectivetoexpresstheoppositemeaning.

“un-”,“in-”,“im-”beforeWorkouttherule!1.________是最常用的否定前綴。2.否定前綴________常用在以字母c開頭的單詞前，3.否定前綴________常用在以字母p

開頭的單詞前。“un-”“in-”“im-”從來都不會(huì)用在以字母l、r開頭的單詞前。

、b、mSummary1.Formostoftheadjectives,weadd“un-”tomakeitopposite.

unkind,unhappy,unlucky…2.

Iftheadjectivebeginswith“p”,weusuallyadd“im-”beforeit.

impossible,impolite