题目

Have you ever seen a moon that looks unbelievably big?It hangs over the horizon like a huge,pale hot-air balloon.Many people think of the bright full moon of autumn or the harvest moon that way — like a huge,pale hot-air balloon.But can you always trust your eyes?
The harvest moon is the full moon on a day nearest the first day of autumn.Full or nearly full,it rises early in the evening for several nights in a row.It brings farmers well-lit evenings to harvest their crops.
The harvest moon can look huge.But does it really fill more of the sky than an ordinary full moon?
Why does the moon look bigger when it is near the horizon?Our brains compare the size of the moon with the size of the objects we see on the horizon.We know that the distant mountains,homes,or skyscrapers are really very large.And,since the moon is much farther away than is the distant landscape,we “see” the moon as being larger than it would otherwise look.
21.To what do we compare the size of the harve

提问时间：2020-08-03

答案

21.D；可参见“Our brains compare the size of the moon with the size of the objects we see on the horizon.”22.C；赞扬23.A；神秘的24.B；与地平线较近的时候25.D；由于那天的月亮比较亮,可以帮助农民们照明收...