Jane studies chemistry ________ asking the teacher ________ help.

A.for; by            B.for; to            C.by; by            D.by; for

 

【答案】

D

【解析】

試題分析:by+doing sth通過做某事,固定結(jié)構(gòu);ask sb for help固定短語,句意:簡通過向老師尋求幫助來學(xué)習(xí)化學(xué)。故選D.

考點:介詞

點評:介詞是中考必考點,需要認真掌握。介詞在英語中起到穿針引線的作用,英語介詞的一個特點是一詞多義,并且介詞間語義交叉現(xiàn)象很多,習(xí)慣用法也很多,有時很難從詞義上區(qū)分開來。故學(xué)習(xí)中要注意不斷總結(jié),結(jié)合語境結(jié)合基本詞義多記一些介詞的習(xí)慣用法和固定搭配。

 

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