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.
答案：so that 解析：考查目的状语从句。句意：现在就行动起来，以便下次机遇之窗向你打开时你不会错过。根据句意可知应用so that引导目的状语从句。
4.You know that some people say more but do less ________ others do the opposite.
答案：while 解析：考查并列连词。句意：你知道有些人说的多做的少，而有些人却与此相反。while在此处为并列连词，连接两个句子，表示“而，然而”。
5.________ scores of times, but he still couldn't understand it.(Having explained, Having been explained, Though it was explained, It was explained)
答案：It was explained 解析：考查句子结构。本句中的but是并列连词，由此可知but前后都应该是完整的句子。
6.(2014·北京海淀区高三期末)Don't use your mobile phone while charging, ________ you may be shocked by electricity.
答案：or 解析：考查并列连词。句意：手机充电的时候不要使用它，要不然你可能会触电。此处用or连接两个并列分句，表示“否则，要不然”。
7.It was a small room, ________ it afforded a fine view of the old city.
答案：but 解析：考查并列连词。句意：虽然这个房间小，但是从这里可以看到这座老城的美丽风光。根据题干中的“a small room”和“a fine view”可知，此处表示转折意义，故用but。
8.(2014·福建福州高三质量检测)The so-called Asia-Pacific century will make no sense ________ China develops.
答案：unless 解析：考查条件状语从句。句意：如果没有中国的发展，所谓的“亚太世纪”就没有任何意义。这里用unless表示“除非……，如果不……”，引导条件状语从句。
