become是動(dòng)詞，后面一般不能跟動(dòng)詞原形，只能跟名詞化的（動(dòng)名詞，也就是動(dòng)詞+ing），或者動(dòng)詞+ed或者動(dòng)詞分詞作形容詞用。

become的意思

vi.變?yōu)?，成為；變得；變成?/p>

vt. 適合，適宜；相稱，相當(dāng)；變成；發(fā)生

become的用法

1.用作連系動(dòng)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(dāng)了老師。

The weather became warmer.天氣變得暖和起來。

Soon the roombecame crowded.不一會(huì)兒房里就擠滿了人。

注意：其后接過去分詞時(shí)，可表示被動(dòng)或結(jié)果；但表示被動(dòng)時(shí)，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(dòng)詞，因此要表示“成為…有多長時(shí)間”，英語不能將become與表示一段時(shí)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(shí)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(xí)語become of,表示“發(fā)生”、“遭遇”等(常與what連用)：

What has become of the girl?這個(gè)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(huì)怎么樣。