2019年mpacc考试英语真题——连词526

{01________ there is going to be a policy change ________ of those things is going to change.

A.Unless; few

B.Until; few

C.Unless; none

D.Until; none

解析：考察连词辨析和代词用法。Unless=if…not如果…不…;none是指特定范围之内一个也没有。结合句意可知C正确。句意：如果政策没有改变，这些事情中没有哪一个会发生改变。
本题选C。
{02}High school students should be given enough sleeping time , _______ they are busy with their study .

A.even so

B.as though

C.as if

D.even if

解析： 本题考查连词辨析。句意：应该给中学生充分的睡眠, 尽管他们忙于准备各种各样的考试。由句意可知D项正确。
本题选D。