1、1.(2011天津)Modern science has given clear evidencesmoking can lead to many diseases.A. whatB.which_ C.thatD.where2. (2011重庆)It is still under discussionthe old bus station should be replaced with a modern hotel or not.A.whetherB.whenC.whichD.where【解析】句意为：那个旧公交车站是否应该被一家现代化宾馆所取代仍在讨论中。本题考查名词性从句。It作形式主语，
2、the old bus station should be replaced with a modern hotel or not作真正的主语。根据句意及题干中的or not可知答案为whether，whether.or not在名词性从句中意为：是否。【答案】A3.（2011上海）There is clear evidencethe most difficult feeling of all to interpret is bodily pain.A.whatB.ifC.howD.that 4.（2010山东）Helping others is a habit,_you can learn even at an early age.A.itB.thatC.whatD.one【解析】考查代词作同位语。句意为：帮助他人是一种习惯，是一种甚至年幼时你就能学着养成的习惯。设空处作a habit的同位语。one用来代替前面出现的泛指的单数名词a habit，以避免重复。【答案】D5.（2010辽宁）I agree to his suggestion_ the condition that he drops all charges.A.byB.inC.onD.to
