(
课件网) Birth and death born on 2 January, 1920 in Russia died on 6 April, 1992 in 1._____ Work Before working as a writer worked in his parents' 2._____ store worked as a(n) 3._____ chemist at the Philadelphia Navy Yard 4._____ biochemistry at Boston University School of Medicine As a writer wrote many mystery stories, 5._____ _____ books, and books about the Holy Bible and Shakespeare works of 6._____: the Foundation trilogy & I, Robot New York candy junior taught science and history science fiction 形象记忆 it 通常用来指代上文提到过的那个事物，表示特指概念，即指代同一物 one 表示泛指概念，替代可数名词的单数形式。其复数形式ones也表示泛指概念，用来替代可数名词的复数形式。the one(s)也是替代可数名词，但表示特指概念 that 既可以用来指代可数名词单数，又可以用来指代不可数名词，表示特指概念，相当于“the＋名词”结构 those 替代上文提到的人或物中特指的那些，替代可数名词复数 课时跟踪检测见课时跟踪检测(四)
