Ⅰ.易混模块
1.A.what B.that
(1)He telephoned Mary________he wanted to see her.
答案：B 引导从句作telephoned的直接宾语，that无词义，不充当成分。
(2)This is________I want to say and that is all________I want to do.
答案：A B 第一空what引导表语从句，代词作用的连接代词，在从句中作say的宾语;第二空that引导一个定语从句，修饰all，that可以省略，在定语从句中作do的宾语。
(3)The coffee we had today was different from________we had yesterday.
答案：A what引导一个从句作介词from的宾语，作起关系代词作用的连接代词，在从句中作had的宾语。
(4)Madame Curie discovered________she called radium.
答案：A what引导一个从句作及物动词discovered的宾语，它作起关系代词作用的连接代词，在从句中作called的宾语。
2.A.if(If) B.whether(whether)
(1)I want to know________she has gone shopping.
(2)We wondered________that man was a spy or not.
(3)It depends on________we will be ready in time.
(4)I don't know________he won't come to the office.
(5)________he comes, I'll tell him at once.
(6)Almost all people enjoy sports，________boys or girls, men or women.
答案：(1)A/B if和whether在此可以互换。
(2)B 宾语从句中出现了or not，只能用whether。
(3)B 从句作介词on的宾语，只能用whether。
(4)A 宾语从句为否定句。
(5)A if在此引导条件状语从句，意思是“如果”。
(6)B whether在此引导让步状语从句，意思是“无论……不管”，全句意思是“几乎所有的人都喜爱体育活动，无论男女老少”。
3.A.who B.whoever
(1)We haven't decided________will go to the sales department.
(2)Teachers tend to like________works hard at school.
答案：(1)A who引导宾语从句，意思是“谁”，在从句中作主语。
(2)B whoever引导从句作like的宾语，相当于anyone who，全句意思是“老师倾向于喜欢在学校努力学习的学生”。
