become的過去式和過去分詞是什麼？

become的`用法

1.用作連繫動詞，其後可接名詞、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.不一會兒房裡就擠滿了人。

注意：其後接過去分詞時，可表示被動或結果；但表示被動時，其後一般不接by短語。比如不說：Soon the room became crowded bystudents.

me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。

He became a teacher ten years ago.

It’s ten years since he became a teacher.

He has been a teacher for ten years.

me之後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。

正：He became ill yesterday.他昨天病了。

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

What has become of the girl?這個女孩後來怎樣了?

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