希望英语好的好心人给出参考答案,
Havingnolanguage,infantscannotbetoldwhattheyneedtolearn.Yetbytheageofthreetheywillhavemasteredthebasicstructureoftheirnativelanguageandwillbewell___1___theirwaytocommunicativecompetence.Acquiringtheirlanguageisamost___2_____intellectualfeat.Studiesof____3_____childrenlearnlanguagegenerallyagreethatthemostremarkableaspectofthisfeatistherapidacquisitionofgrammar.Nevertheless,theabilityofchildrentoconform____4____grammaticalrulesisonly____5_____morewonderfulthantheirabilitytolearnwords.Ithasbeenestimatedthatthe____6_____highschoolgraduateintheUnitedStateshasareadingvocabularyof80,000words,whichincludes____7_____expressionsand_____8______namesofpeopleandplaces.Thisvocabularymusthavebeenlearnedoveraperiodof16years.Fromthefigures,itcanbecalculatedthattheaveragechildlearns____9____arateofabout13newwordsperday.Clearlyalearningprocessofgreatcomplexitygoesonatarapid____10_____inchildren.
1.A.inx05x05x05x05B.onx05x05x05C.underx05x05x05x05D.for
2.A.impressivex05x05B.expressivex05C.repressivex05x05x05D.persuasive
3.A.wherex05x05x05B.whenx05x05x05C.whichx05x05x05D.how
4.A.tox05x05x05x05B.forx05x05x05C.withx05x05x05x05D.in
5.A.greatlyx05x05x05B.slightlyx05x05C.alotx05x05x05x05D.agreatdeal
6.A.commonx05x05x05B.ordinaryx05x05C.averagex05x05x05D.usual
7.A.idiomaticx05x05x05B.idiomx05x05C.idiomsx05x05x05D.idiot
8.A.properx05x05x05B.appropriatex05C.suitablex05x05x05D.improper
9.A.inx05x05x05x05B.onx05x05x05C.atx05x05x05x05D.for
10.A.timex05x05x05x05B.ratex05x05x05C.placex05x05x05x05D.way