2019年mpacc考试英语真题——介词和介词短语1609

{01}While in London, we paid a visit to the hospital founded____ Florence Nightingale.

A.in honor of

B.in line with

C.in favor of

D.in place of

解析：固定搭配，in honor of是“为了纪念…”，整个的founded短语作后置定语，相当于which was ….
本题选A。
{02}Experts have been warning ___ of the health risks caused by passive smoking.

A.at a time	B.at one time
C.for some time	D.for the time

解析：for some time 意为“一段时间”，因为谓语用了现在完成进行时，所以要用for some time，表示从过去的某个时候开始一直延续到现在的一段时间内，专家一直警告说被动吸烟引起健康危急。at a time意为“每次,在某时”；at one time意为“同时,曾经”；for the time意为“暂时”。
本题选C。