become不规则动词变化形式

become的过去式是became，过去分词还是原型become，现在分词是把不发音的e去掉，再加ing，即becoming。它的这些变化和come是一样的，come的过去式是came，过去分词也，也是原型come，现在分词是coming，类似的词还有run，过去式ran，过去分词run。

become用作连系动词，意为“成为”，其后可接：

1.名词

They became great friends.他们成了莫逆之交。

He aims to become a computer expert.他打算当一名电脑专家。

She has become a painter of distinction.她成了一名杰出的画家。

2.形容词

She became very fond of her.她变得非常喜欢她了。

He soon became angry. 他过了一会儿就生气了。

She has become familiar with the house.她对这房子已变得很熟悉。

I’ve become used to a vegetarian diet.我已习惯于素食。

become是动词，后面一般不能跟动词原形，只能跟名词化的（动名词，也就是动词+ing），或者动词+ed或者动词分词作形容词用。

become的意思

vi.变为，成为；变得；变成；

vt. 适合，适宜；相称，相当；变成；发生

become的用法

1.用作连系动词，其后可接名词、形容词、过去分词等作表语：

He became a teacher at(the age of)17.他17岁就当了老师。

The weather became warmer.天气变得暖和起来。

Soon the roombecame crowded.不一会儿房里就挤满了人。

注意：其后接过去分词时，可表示被动或结果；但表示被动时，其后一般不接by短语。比如不说：

Soon the room became crowded bystudents.

2.become是终止性动词，因此要表示“成为…有多长时间”，英语不能将become与表示一段时间的词或短语连用：

他成为老师有十年了。

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.

误：He has become a teacher for ten years.

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

正：He began[came]to like English. 他开始喜欢英语起来。

误：He became to like English.

正：He became ill yesterday.他昨天病了。

误：He became to be ill yesterday.

4.用于习语become of,表示“发生”、“遭遇”等(常与what连用)：

What has become of the girl?这个女孩后来怎样了?

I don’t know what will become of me if I fail this time.要是我这次不成功，我不知我会怎么样。