记忆方法
将“became”与“become”的发音和拼写联系起来，并想象“became”是“become”过去式的一个“膜”或“变化层”，类似于一层“be”变成了“became”。通过视觉联想，可以将“be”变成“became”的过程记忆下来。
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英语词源
- became
- past tense of become (q.v.).
权威例句
- 1. He actually became convinced that the nurses had an unanswerable case.
- 他实际上已经相信了护士们的情况确实如此。
- 2. A new generation of scientists became fascinated by dinosaurs.
- 新一代科学家对恐龙研究着了迷。
- 3. The crowds became violent and threw petrol bombs at the police.
- 人群变得狂暴起来，并向警察投掷汽油弹。
- 4. Loyalty and support became the bywords of the day.
- 忠诚和支持成了那个时代人们时常挂在嘴边的词儿。
- 5. She became involved in social and relief work among the refugees.
- 她参加了帮助难民的社会救济工作。