Scientists have spent years______ into the effects of certain chemicals on the h

游客2024-02-21  26

问题 Scientists have spent years______ into the effects of certain chemicals on the human brain with no results.

选项 A、studying
B、investigating
C、researching
D、inspecting

答案 C

解析 近义词辨析。study意为“研究,学习”,指对某一课题或问题进行深入细致的研究,并根据其研究结果做出计划或采取某种行动,如:In this chapter,we shall be studying about liquid fuel.(本章我们将要研究液体燃料。)investigate 意为“调查,研究”,指目的在于发掘和确定真相的调查,如:The police are investigating the robbery.(警察正在调查这起抢劫案。) research 意为“调查,研究”,指对某事物进行深入仔细地追究、研究、探索,以寻求其中的奥秘,后面常接介词 into 或 on,如:to research into the causes of an illness (研究发病原因);inspect 意为“检查,视察”,常指上级视察、调查、检验或检查等含义,如:inspect a factory (视察工厂)。根据原句句意以及介词 into 可知,应选C)。
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