2019年mpa考试英语真题——介词和介词短语2992

{01}The man dressed _____ jeans is an expert _____ unlocking doors and he can open a door ______ difficulty. A.in, on, with B.on, at, with C.in, on, without D.in, at, without 解析：考查介词：第一空是be dressed in穿着，第二空be an expert at是…的专家，第三空without difficulty，毫不费力的，句意是：穿着牛仔裤的人是解锁专家他能毫不费力的开门。选D。
本题选D。
{02}Be careful when you surf the Internet．If you download a virus into your computer ______, you will not open your files． A.on purpose B.by accident C.at random D.on average 解析：词组辨析题。上网时小心些，如果你偶然下载病毒进入你的电脑你的文件会无法打开。A．on purpose 故意          B．by accident 偶然   C．at random 随机         D．on average 平均   根据语境选B
本题选B。