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It ______ that he has been ill for a long time.

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It ______ that he has been ill for a long time.
A.seems B.looks
选择 A.seems
解析
一、seem 和 look 的词义区别
1、seem 是对客观分析得出的表象结论,即‘根据客观迹象判断似乎好像’.如:
It seemed certain that this would win the prize.这一块要得奖似乎是毫无疑问的了.
2、Look 是以视觉所接受的印象为依据的,即‘根据眼睛所看到的印象似乎好像’.如:
He looked pale and his clothes were in a frightful state.他看上去脸色苍白,一身衣服弄得一塌糊涂.
二、用法的异同
1、相同点:都可以带形容词、as if 从句作表语
He seems/looks quite happy.他似乎十分快乐.
You look/seem as if you had a cold.看你的样子,好象是感冒了
2、不同点:
Seem可以用在下面的结构中,而look 不可以
I seemed to hear a voice in the distance.我好象听到远处有说话声.(seem to do)
It seems to me that it will snow.我看要下雪.(it seems that)
It seems as if it is going to rain.看来要下雨了.(it seems as if)
He seems (to be) quite happy.他似乎十分快乐.(seem to be)
Look后可以跟名词、介词短语like 作表语,而seem 不可以,如:
He does not look his age.他看上去不象是有这个年纪的人.
The hat looked like a lighthouse.那顶帽子看起来好象一座灯塔的.
It looks like rain.看来要下雨了.