2019年mpa考试英语真题——连词764

{01}Don’t start reading a book ________ you find that it’s one you can read with ease and understanding. A.when B.if C.unless D.though 解析：根据句子句意和逻辑关系可知：请不要读书除非你觉得你读的书是简单易懂的，由此可知答案为unless，选后可复查，一般情况下unless与if…not意思相当，将if…not代入句子可知unless确实为正解。
本题选C。
{02}_____ we were worried about was _______ they could manage to control the pollution. A.That; how B.That; whether C.What; that D.What; whether 解析：
这题考查名词性从句的用法,what引导的是主语从句，what在主语从句中做宾语，that引导表语从句，在从句中不做成分。句意是：我们担心的是,是否他们能设法控制祝污染。
本题选C。