问题
选择题
Scientists hope to____soon in their fight against heart disease.
A．break up
B．break out
C．break through
D．break in
答案
C
考查动词词语辨析。句意：科学家们希望能尽快在应对心脏病方面有所突破。Break up“分解、打断”；break out“爆发、发生”；break through“突破”；break in“闯入、打断”；按照句意答案选C.