《2025年创新设计高中英语选择性必修第二册北师大版》

2 句型公式：while 引导的让步状语从句
教材原文 While one person might lightly giggle at a joke, another might fall about with laughter.
一个人听了笑话可能会咯咯地笑，而另一个人可能会笑得东倒西歪。
感知 语言先输入
①While the project faced many challenges, the team managed to complete it on time.
②While I was preparing for the exam, my friends were enjoying their vacation.
③It is important to stay focused while working on your assignments.
记牢 知识再梳理
(1)本句是 while 引导的让步状语从句，while 意为“尽管，虽然”，相当于 although/though/as。但 while/although 引导的让步状语从句不倒装，as 引导的让步状语从句要倒装，though 引导的让步状语从句可倒装也可不倒装。
(2)while 作连词时除了可引导让步状语从句，还有以下用法：
①while 引导时间状语从句时，意为“在……期间，当……的时候”。从句谓语动词只能用表持续性的状态或动作的动词，而不能用短暂性动词。
②用作并列连词，连接两个并列分句，表示对比或相反的情况，意为“然而；而”。
运用 完成句子/同义句转换
①While/Although/Though I understand you, I don’t agree with you. (不倒装)
尽管我理解你，可我不同意你的观点。
②Difficult as/ though the task was, they managed to finish it in time. (倒装)
虽然这项任务很难，他们还是设法及时完成了。
③They rushed inwhile/when we were discussing prob-lems.
我们正在讨论问题的时候，他们冲了进来。
④Some students prefer studying in groups,while others find it more effective to study alone.
有些学生喜欢小组学习，而其他人发现独自学习更有效。
⑤While he was tired, he went on working.
→While tired, he went on working. (省略)
NOTES

答案： 2.①While/Although/Though I understand you ②Difficult as/ though the task was ③while/when we were discussing prob-lems ④while others find it more effective to study alone
⑤While tired