选词填空 play safe； based on； pick up； would rather； be aware of 【小题1】Their relationship was ________ mutual respect. 【小题2】Let's ________ and make enough preparations. 【小题3】Do we need to ________ any differences between them? 【小题4】If you go to England, you'll soon ________ English. 【小题5】She ________ go there by train than by plane.

本题考查固定短语的语境应用能力，需要根据句意选择恰当的短语填空。解题核心在于：

1. 理解每个短语的核心含义：如play safe强调谨慎，based on表示基础，pick up有学习或捡起之意，would rather表偏好，be aware of指察觉或意识到。
2. 结合句意匹配短语：通过分析句子逻辑关系（如因果、目的、比较等），确定短语的适用场景。

【小题1】Their relationship was ______ mutual respect.

• 关键逻辑：关系建立在相互尊重的基础上。
• 短语选择：based on（基于）直接对应“建立在...基础之上”的语境。

【小题2】Let's ______ and make enough preparations.

• 关键逻辑：为充分准备采取谨慎行动。
• 短语选择：play safe（谨慎行事）与“make enough preparations”形成因果关系。

【小题3】Do we need to ______ any differences between them?

• 关键逻辑：是否需要注意到差异。
• 短语选择：be aware of（意识到）符合“察觉差异”的语境。

【小题4】If you go to England, you'll soon ______ English.

• 关键逻辑：在英语环境中自然学会语言。
• 短语选择：pick up（习得）强调通过环境或经验自然掌握技能。

【小题5】She ______ go there by train than by plane.

• 关键逻辑：比较两种交通方式的偏好。
• 短语选择：would rather（宁愿）与“than”搭配，构成固定结构。