【題目】—The ancients began to study the moon long ago.

—Yeah.They already knew that the moon ______around the earth then.

A.movesB.movedC.was movingD.will move

【答案】A

【解析】

句意：——古代人很久以前就開(kāi)始研究月球。——是的。他們那時(shí)已經(jīng)知道月球繞著地球轉(zhuǎn)。

考查賓語(yǔ)從句辨析。moves動(dòng)詞的一般現(xiàn)在時(shí)；moved動(dòng)詞一般過(guò)去時(shí)；was moving過(guò)去進(jìn)行時(shí)；will move一般將來(lái)時(shí)。根據(jù)句子結(jié)構(gòu)，原句是一個(gè)賓語(yǔ)從句，從句表示“月球繞著地球轉(zhuǎn)”，這是個(gè)客觀事實(shí)，所以從句用一般現(xiàn)在時(shí)。主語(yǔ)the moon是單數(shù)形式，所以空格處填動(dòng)詞的三單形式moves。故選A。

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