WordpowerUnit4Hands-onfunOneofthemostcommonprefixesforadjectivesisun-.Itmeans“not”.Weaddittosomeadjectivestogivethemtheoppositemeaning.Wecanalsousesomeotherprefixes,suchasin-andim-,toformnewadjectiveswiththeoppositemeaning.luckyunluckycorrectincorrectpossibleimpossibleusualunusualcompleteincompletepoliteimpoliteAAddthecorrectprefixestothewordsbelowsothattheyhavetheoppositemeanings.Youmayuseadictionarytohelpyou.1interesting _____________ 2sure

_____________3able

_____________ 4friendly

_____________5active

_____________ 6patient

_____________7expensive

_____________ 8perfect

_____________uninterestingunsureunableunfriendlyinactiveimpatientinexpensiveimperfectBReadtheconversationsbelow.Fillintheblankswithwordsinthebox,addingthecorrectprefixestothem.correcttidyusual

possiblepatient1Simon:DoyouspendmuchtimedoingDIY,Nora?Nora:Yes,Ido!It’s________tofindmewithoutaDIYjobtodo.Whataboutyou?Simon:I’mnotafanofDIYbecauseI’mtoo___________.Nora:Ohyes,it’s_________tofinishaDIYjobifyouarenotpatient.~~~~~~~~~~~~~~spendtime(in)doing花費(fèi)時(shí)間做……unusualimpatientimpossible2Mum:Suzy,yourroomisreally________——thingsarealloverthefloor.Suzy:Sorry,Mum.I‘lltidyupsoon.Itseemssomeoftheanswersinmyhomeworkare

_________.I‘mlookingformytextbookstocheck.untidycorrecttidyusual

possiblepatientincorrectCWriteaboutyourandyourfriends’DIYjobs,usingtheprefixesun-,in-andim-.略1否定前綴un-un-加在形容詞前，讓詞義變成“不……的”。happy→unhappy（不開心的）；fair→unfair（不公平的）；usual→unusual（不尋常的）。探究構(gòu)詞法否定前綴un-,in-和im

-2否定前綴in-in-加在形容詞前，也表示“不……的”。correct→incorrect（不正確的）；complete→incomplete（不完整的）；visible→invisible（看不見的）。3否定前綴im-im-常用于以“b”“m”或“p”開頭的單詞前。patient→impatient（不耐煩的）；polite→impolite（不禮貌的）；possible→impossible（不可能的）。學(xué)會(huì)運(yùn)用1:Therainydaymadeeveryone__________(happy).學(xué)會(huì)運(yùn)用2:Thetoycarwas

____________(complete)—ithadnowheels!學(xué)會(huì)表達(dá)3:滿嘴食物說話不禮貌哦！____________________total