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一、1.(2016届高三第二次全国大联考浙江卷)The natural environment should be protected because of the important role _______ plays in human survival and development. A. this B. one C. that D. it 【答案】D 【解析】句意：自然环境应该受到保护，因为它在人类的生存和发展中起着重要的作用。it 指代The natural environment。it 用于替代上文出现的同一事物；one 用于替代上文提到的可数名词单数，表示泛指；that 用于替代上文出现的可数名词单数或不可数名词，特指。故选 D 项。 2.(北京市朝阳区2016届高三第一次模拟)Paula waited until all the luggage was cleared, _______ hers never appeared. A. or B. so C. as D. but 【答案】D At the end of the historic area, Wilmington displayed its _______ as a working port city: large ware-house and a few other dated office buildings. A. achievement B. reputation C. character D. standard 【答案】C 【解析】achievement成就，成绩reputation名气，名声character性格角色特点standard标准，规格大型仓库和其一些陈旧的办公楼 _______ of this medical technology, some diseases can be treated at early stage. | 
