2008-2009牛津教材高三第一轮复习试题（二）

Class:        Name:        Marks:        满分（100）

一、单项选择（共15小题；每小题1分，满分15分）

请认真阅读下面各题，从题中所给的A、B、C、D四个选项中，选出最佳选项。

1．In spite of failing to save every endangered species, we may preserve the majority ________ extinction．

A．off                         B．with                       C．beyond                   D．from

2．They ________ on the program for almost one week before I joined them, and now we ________ on as no good results have come out so far．

A．had been working; are still working                   

B．had worked; were still working

C．have been working; have worked                      

D．have worked; are still working