大学英语自学教程上册Unit21-25习题答案.doc

Unit?21?Text?A?Exercises?for?the?Text?I.1.d???2.b???3.d???4.c???5.dII.1.dominate???2.imprecision???3.out?of?question4.denote???5.specific???6.prediction7.assign???8.marked???9.consistent10.intelligenceIII.1.probable???2.sure???3.possible4.likely???5.necessary???6.rare7.thorough???8.potential???9.near10.systermaticIV.in,?how,?the,?in,?for,?rang,?to,?to,?later,?who,V.1.A?number?of?imprecise?words?are?in?our?everyday?speech.2.The?word?several?denotes?different?meanings?in?different?occasions.3.The?understanding?of?imprecise?words?is?also?affected?by?age.4.The?experiment?shows?that?the?ration?increase?systematically?with?age.5.Words?like?fat,?thin,?tall,?and?short?are?also?the?words?of?uncertainty.?Vocabulary?Exercises I.1.a.imprecision???b.precision???c.precise2.bable???bability???bably3.a.wide???b.widely???c.widen4.a.system???b.systematic???c.systematically5.a.quantitative???b.quantity???c.quantifiableII.1.assigns???2.prediction???3.potentially4.signified???5.consistent???6.marked7.subjective???8.ratio???9.waging10.dominateIII.1.Our?soldiers?knew?how?to?pin?down?the?enemies.2.He?often?compares?himself?with?other?students?in?his?class.3.He?is?not?such?a?singer?as?a?composer.4.Who?is?in?place?of?the?manager?when?he?is?away?5.It?is?out?of?question?for?Tom?to?finish?the?test-paper?within?two?hours.?Text?B Exercises?for?the?Text I.1.T???2.T???3.F???4.F???5.F???6.F????7.F???8.T???9.T??10.TII.1.Proverb2.An?hour?before?midnight?is?worth?two?after3.the?wildest?rumours4.Dont?wash?your?dirty?linen?in?public5.Its?no?use?crying?over?split?milk.6.make?the?best?of?a?bad?job.7.Let?sleeping?dogs?lie8.Chinese9.a?free?lunch10.reluctant?Vocabulary?Exercises I.1.A???2.B???3.D???4.D???5.C???6.A????7.C???8.A???9.D???10.B? Unit?22?Text?A?Exercises?for?the?Text I.1.d???2.a???3.d???4.c???5.bII.1.set?aside???2.program???3.priority4.involvement???5.pro?or?con???6.recreation7.commitment???8.comment???9.maintain10.accomplishmentIII.1.