B．When necessary C．On condition that

　　D．Believe it or not 解析：选A。考查省略。句意：——我听说Alice在事故中受伤严重，并且被送进了医院。——如果是那样的话，我们应该马上去看她。If so表示“如果这(那)样的话……”；When necessary表示“有必要时……”；On condition that表示“如果……”；Believe it or not表示“信不信由你”。根据语意可知选A项。 3【教材原句】　John was studying in his room when he heard screaming.(P38) 约翰正在房间里学习，突然听到一声尖叫。 【句法分析】　when在此句中意为“这时，突然”，相当于at this/that time，常用于以下结构中： be doing...when...正在……这时…… be about to do...when...正打算做……这时…… be just going to do...when...正要……这时…… had just done...when...刚做了……这时…… be on the point of doing...when...正要……这时…… ①We were about to leave when a big noise came from the next room.我们正要离开时隔壁发出了巨大的响声。 ②We were discussing the problem when there was a power failure.我们正在讨论那个问题，这时停电了。 ③I was on the point of calling him when he came in. 我正要给他打电话，这时他进来了。 12．She opened her eyes with a start and was about to cry________she heard her father urgently telling her to keep quiet. A．while B．when C．before

【2017全新教程高考英语总复习（人教版浙江专用）课件：必修五Unit 5 First aid】相关文章：

★ 【人教版】2014届高考英语一轮复习指导考点针对练：必修4 unit4《Body language》

★ 2014年牛津译林版高中英语总复习（第1轮）同步练习 M3《Unit 3 Back to the past》

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修3 Unit 4 Astronomy：the science of the stars

★ 【浙江专用】2014届高考英语一轮复习课时作业(十五)必修3Unit 5《Canada—“The True North”》

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修4 Unit 1 Women of achievement

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修4 Unit 5 Theme parks

★ 【人教版】2014届高考英语一轮复习指导考点针对练：必修2 unit3《Computers》

★ 【三维设计】2017届高考英语（江苏专用）二轮复习阅读理解解题技法示范课件：2

★ 【浙江专用】2014届高考英语一轮复习课时作业(一)必修1Unit 1《Friendship》

★ 【浙江专用】2014届高考英语一轮复习课时作业(五)必修1Unit 5《Nelson Mandela—a modern hero》