1、单项填空1It has been proved _ eating apples every day is good to the health.AifBbecauseCwhen Dthat解析：选 D。考查it作形式主语时主语从句的引导词。句意：已经证实，每天吃苹果对健康有益。此句中，it为句子的形式主语，而proved后面的从句才是该句的真正主语；该主语从句中eating apples every day is good to the health.并不缺少成分，所以只需用that引导即可。2_ is known to us is that the 2016 Olympic Games wi
2、ll take place in Rio.AIt BWhat CAs Dwhich解析：选B。考查主语从句的引导词。句意： 我们都知道2012年的奥运会将在伦敦举行。What is known to us为主语从句，what为连接词并在从句中作主语。句中that引导表语从句。3It is not immediately clear _ the financial crisis will soon be over.Asince BwhatCwhen Dwhether解析：选D。考查主语从句的引导词。句意：金融危机是否很快就结束还不清楚。根据句意选whether。4It is suggested
3、that we _ to the park later.Awill go BwentCgo Dhas gone解析：选C。主语从句中的虚拟语气。句意：我们被建议稍晚一点去公园。此处suggest意为“建议”，所以从句中要用“should动词原形”的虚拟语气。5The question is _ the film is worth seeing.Aif BwhatCwhether Dhow 解析：选C。考查表语从句引导词。句意：问题是这部电影是否值得一看。根据句意应选C，if不能引导表语从句。6The reason _ I have to go is_ my mother is ill in b
4、ed.Awhy; why Bwhy; becauseCwhy; that Dthat; because解析：选C。考查定语从句及表语从句。句意：我要走的原因是我妈妈生病在床了。修饰reason的定语从句不缺主语、宾语、表语，故选why作状语；reason作主语，常用that引导表语从句。7_ I cant understand is _ she wants to change her mind.AWhat; why BWhich; howCThat; why DWhat; because解析：选A。 考查主语从句及表语从句。句意：我不能理解的是她为什么想改变主意。What在主语从句中作unde
5、rstand的宾语；why在表语从句中作状语。8_ his dream of going to college will come true is uncertain.AThat BWhetherCIf DEven if解析：选 B。 考查主语从句。句意：他上大学的梦想能否实现还不确定。根据uncertain可知主语是表示疑问，故排除A。if引导主语从句不能置于句首。9_ is a fact that English is being accepted as an international language. AThere BThisCThat DIt解析：选D。 考查it作形式主语。句意：英语已成为国际性的语言是个事实。所需词置于句首，同时后面有that从句(逻辑主语)，可见这里应该用形式主语it。10_ has helped to save the drowning girl is worth praising.AWho BThe oneCAnyone DWhoever解析：选D。考查主语从句。句意：任何帮助救溺水女孩的人都值得表扬。whoever anyone who意为“无论谁”，表泛指。 高考资源网%
