Ⅰ.单句语法填空：根据句意，在空线处填上适当的单词。
1．(2019·上海浦东新区高三期末质量检测)It's about time that we, as a society, ________ (walk) away from generalizations and stereotypes.
答案：walked/should walk 这里是“it's (about/high) time that＋从句”句型，从句的谓语动词要用动词过去式或“should＋动词原形”，should不可省略，故用walked或should walk。
2．(2019·天津东丽区高三毕业班质量监测)It is really cold and the ground is wet; it ________ have rained last night.
答案：must 句意：天气很冷，地面很湿；昨晚一定下雨了。must have done “过去一定做了某事”。
3．(2019·天津七校高三上学期期中联考)Fortunately I was wearing a seat belt, otherwise I would ________ (injure).
答案：have been injured otherwise “否则，要不然”，其后的句子用虚拟语气，表示与过去事实相反，主句用would have done sth., injure和主语之间是被动关系，所以用would have been injured。
4．(2019·江苏南京六校联合体高三12月联考)Why ________ you choose to work in a remote village school when you can own a respectable job in a city?
答案：must 根据句意，这里表示“偏要，硬要”，用must。
