第一部分 英语知识运用（共两节，满分45分）第一节 单项填空（共15小题；每小题1分，满分15分）从a、b、c、d四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。 21．once upon a time，a(n)________famous scientist said that life was not easy for any of us but first of all we should believe in ourselves. a．another b．sure c．some d．certain 22．—look！he’s running so fast! —hard to________his legs were once broken. a．know b．imagine c．realize d．find 23．—you must apologize________your sister________being so rude. —no way.it was her fault. a．with；about b．at；for c．to；with d．to；for 24．jack’s mother kept telling him that he should work harder，but_______didn’t help. a．he b．
