3.Ms.Wang ________ PE in this school for about 18years.(  )
A.has taughtB.is teachingC.teachesD.taught

分析 王夫人在這所學(xué)校已經(jīng)教了十八年的體育了.

解答 答案:A.
結(jié)合時(shí)間狀語for about 18years表示動作發(fā)生在過去,持續(xù)了一段時(shí)間用現(xiàn)在完成時(shí)have/has+過去分詞,主語三單,故has,teach的過去分詞taught,故答案是A.

點(diǎn)評 現(xiàn)在完成時(shí)有兩種用法1.過去發(fā)生的某一動作對現(xiàn)在造成的影響或結(jié)果或到現(xiàn)在為止已經(jīng)發(fā)生或完成的動作.2.表示過去發(fā)生的、持續(xù)到現(xiàn)在的動作或狀態(tài).

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