2019年mpacc考试英语真题——形容词1735

{01}Dan caught two ________birds in the wood last week and they are still ________in the cage.

A.alive; live

B.live; live

C.live; alive

D.lived; alive

解析：形容词辨析。alive 活着的，（表语，后置定语）；live活着的（形容动物）；现场直播的；句意：上个星期Dan抓住了两只活鸟，他们现在还活着。
本题选C。
{02}The students were ________ over the ________ problem，listening to the teacher with a ________ expression on their faces.

A.puzzled；puzzling；puzzling	B.puzzled；puzzling；puzzled
C.puzzling；puzzling；puzzled	D.puzzling；puzzled；puzzling

解析：形容词辨析。Puzzled感到困惑的,通常形容人；puzzling令人困惑的，通常形容事物；expression表情，它与人有关，所以仍然用puzzled修饰。句意：带着困惑的表情听老师讲课，学生们对于那个令人困惑的问题感觉很困惑。
本题选B。