提能专训(十二)
Ⅰ.单句语法填空(并列句、状语从句)
1．If we work with a strong will, we can overcome any difficulty, ________ great it is.
答案：however 解析：考查让步状语从句。根据空前的内容可知：此处应用however引导让步状语从句，however great it is相当于no matter how great it is。
2．(2014·北京海淀区高三期末)The new policy allows a couple, to have a second birth ________ either is an only child.
答案：if 解析：考查条件状语从句。句意：如果夫妇二人有一人是独生子女的话，新政策允许他们生第二胎。这里用if引导条件状语从句，表示“如果”。
3．(2014·浙江考试院抽学校高三抽测)Take action today ________ you won't miss your windows of opportunity next time.
