题目

下列叙述中正确的是A.NH3、CO、CO2都是极性分子             B.CH4、CCl4都是含有极性键的非极性分子C.NaCl和CsCl晶体中阳离子的配位数都是6   D.CS2、H2O、C2H2都是直线型分子  答案：B解析: 完形填空（15分）Bill is an Australian __41___. He is twelve. He lives ___42___ his family in China. There are __43___ people in his family. His father John Smith, his mother Catherine and his little sister Abbey. He has a yellow dog. ___44___ name is Barbi. Look! Abbey is ___45__with Barbi. His father is mending his car. His mother is cleaning the house. What is Bill doing? Ah, he is doing __46__ homework in Chinese. He can’t __47___ Chinese well, but he loves Chinese very much. Bill’s ___48___ works in a middle school as an __49____ teacher. His mother works at a TV factory. Bill and his __50____ go to the same school.【小题1】A．childB．boyC．dogD．girl【小题2】A．inB．withC．onD．at【小题3】A．threeB．fourC．fiveD．two【小题4】A．It’sB．HisC．ItsD．Her【小题5】A．livingB．talkingC．playingD．eating【小题6】A．herB．itsC．hisD．a【小题7】A．sayB．speakC．tellD．talk【小题8】A．motherB．fatherC．EnglishD．Australian【小题9】A．ChineseB．JapaneseC．EnglishD．Australian【小题10】A．boyB．girlC．brotherD．sister