十年(20102020)高考英语真题分项详解01英语词法名词1.(2020江苏).The health security systems of many countries are undergoing considerable _.A. reservation B. transformation C. distinction D. submission【答案】B【解析】考查名词词义辨析。句意:许多国家的卫生安全系统正在经历重大变革。A. reservation预订;B. transformation改革,变革;C. distinction区别;D. submission提交。根据前文The health security systems可知,此处指“卫生安全系统的变革”。故选B。2.(2019天津)We can observe that artificial intelligence has already made a(n) _on our lives in many ways.A. statementB. impa