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連系動詞seem, appear和look用法區別

三者均屬于表示狀態的來連系動詞，都有“好像”、“似乎”的意思，區別如下：

(1) seem 側重指事實上似乎是那樣的；look 指視覺印象，指看起來似乎如此；appear 指從表面上看似乎如此，但有時并非如此。。如：

They seemed tired and unhappy when they got home. 他們回到家時看來很累，不高興。

Be careful! The newly waxed floor looks very slippery. 小心點！這新打蠟的地板看起來很滑。

She appears quite old. 她顯得很老。

(2) 三者均可后接不定式，但 look 之后一般只限于 to be(且較少見)：

The man seems / appears / looks to be very tired. 那人好像很疲勞。

He seemed / appeared to have met her before. 他以前似乎見過她。

(3) 三者均可用于 it 開頭的句子，且三者之后均可接從句。如：

It seemed / as if / though the day would never end. 似乎白天永遠也過不完。

It looked as if he had been ill. 他看起來像是生過病。

It seems / appears that he is very rich. 他似乎很富有。

為避免重復，appear和seem后接的 that 從句有時可用so或 not代替。如：

“Is he an honest man ?” “It seems / appears so / not.”“他是誠實的人嗎?”“似乎是 / 不是。”

(4) look, seem 之后可接like短語，但 appear 之后一般不能：

You look like your father. 你看起來像你父親。

It seemed like a disaster at the time. 在當時就好像是一場災難。