备考GRE考试，今天启德考培GRE资深黄静老师给大家讲解一下填空技巧，用两道题目让你明白GRE的备考核心要点。

　　题目1

　　No one (i) that building a ship powered by black holes or dark matter would be a formidable task. Yet remarkably there seems to be nothing in our present understanding of physics that (ii) our doing so.

　　题目2

　　Because the writer emphasizes the (i) of certain engineers whose contributions have been overlooked, her history of technology will not, like many of its predecessors, be a survey (ii) the most celebrated achievements in the field.

　　知识点

　　1.当两个空没办法单独选择的时候就需要两个选项一起选，要确保逻辑成立

　　2.注意因果关系的考察(会考察到句意的理解)