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become用法說明

1. 用作連系動詞，其后可接名詞、形容詞、過去分詞等作表語：

He became a teacher at (the age of) 17. 他17歲就當了老師。

The weather became warmer. 天氣變得暖和起來。

Soon the roombecame crowded. 不一會兒房里就擠滿了人。

注意：其后接過去分詞時，可表示被動或結果；但表示被動時，其后一般不接 by短語。比如不說：

Soon the room became crowded bystudents.

2. become 是終止性動詞，因此要表示“成為…有多長時間”，英語不能將become與表示一段時間的詞或短語連用：

他成為老師有十年了。

正：He became a teacher ten years ago.

正：It’s ten years since he became a teacher.

正：He has been a teacher for ten years.

誤：He has become a teacher for ten years.

3. become 之后一般不接不定式表示“逐漸…” (此時可用 come / begin＋不定式)：

正：He began [came] to like English. 他開始喜歡英語起來。

誤：He became to like English.

正：He became ill yesterday. 他昨天病了。

誤：He became to be ill yesterday.

4. 用于習語 become of, 表示“發生”、“遭遇”等 (常與 what連用)：

What has become of the girl?　這個女孩后來怎樣了?

I don’t know what will become of me if I fail this time. 要是我這次不成功，我不知我會怎么樣。