《2026年点金训练精讲巧练高中英语选择性必修第二册外研版》

5. 状语从句的省略
[教材原文]When first introduced in Japan in 1999, emojis were limited to 176 simple designs.
表情符号于 1999 年首次在日本推出时，仅限于 176 个简单的图案。
[归纳拓展]
在状语从句中，如果从句的主语与主句的主语一致或者从句的主语为 it，且从句谓语中包含 be 动词，可以省去从句的主语和 be 动词，保留 be 动词之后的部分。常见的几种状语从句的省略：
① when，while，since，until，once 等引导的时间状语从句的省略。
② if，unless 引导的条件状语从句的省略。
③ though，although，even if，even though，“疑问词 + ever”或“no matter + 疑问词”等引导的让步状语从句的省略。
④ as，as though，as if 引导的方式状语从句的省略。
[即学即练]
(1)单句语法填空
① When comparing(compare)the two cities，we find they have much in common.
② While walking(walk)alone in the street，I heard my name called.
③ Unless repaired(repair)，the machine is of no use.
④ He will come if asked(ask).
(2)写作微练
(应用文写作之通知)即使下大雨，我们也不会改变计划。
Even if it is raining heavily，we will not change our plan.

答案： 5.
(1)①comparing ②walking ③repaired ④asked
(2)it is raining heavily

多义词汇专练
expand：A. v. 变得更自信(善谈) B. v. 扩展，发展(业务) C. v. 扩大，膨胀
① A tyre expands when you pump air into it. C
② We’ve expanded the business by opening two more stores. B
③ The guests started to expand a little after they had a glass or two of wine. A

答案： 多义词汇专练 ①C ②B ③A