She's aiming ________ a scholarship. That is why she has been focusing her mind ________ her work.
A．a(chǎn)t; onB．to; onC．for; inD．a(chǎn)t; into
A

試題分析：考查介詞：第一空填at，be aimed at“旨在”，第二空填on，focus one’s mind on 專注于，句意：她的目的是獎(jiǎng)學(xué)金，這就是她為什么努力學(xué)習(xí)的原因。選A。
點(diǎn)評(píng)：介詞的考查重在積累。解題技巧:  1）明確詞意  所選答案要符合句子意思；2）歸納比較平時(shí)要特別重視收集歸納比較同義詞、近義詞和相似詞的異同，牢記它們的用法。
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