(1)在肯定句中表示对过去情况的推测时,不用此结构,而是用must have done。如:
Something terrible must have happened if Li Chang was not coming to eat in his restaurant as he always did.
要是李昌不像往常那样到他餐馆里吃饭,那问题一定很严重了。
It is wet outside on the ground.It must have rained last night.
外面地上很湿,昨天晚上肯定下雨了。
(2)could have done还有“本来能够做”的意思,表示实际并没有去做这件事,只是一种假设或者虚拟的语气。如:
He paid for a seat when he could have entered for free.
他本来可以免费进场,但是他还是买了票。即境活用单项填空
①It________have been more than six years old when the accident happened.
A.shouldn't
B.couldn't
C.mustn't
D.needn't
②Mary was not in her bedroom yesterday afternoon.She________in her classroom.
A.should have been
B.must have been
C.must be
D.should be
答案:①B ②B
2.Why don't you sit down and try a meal?
你为什么不坐下来吃顿饭呢?
●用法拓展
【2017届高考英语一轮复习教案:3.2《Healthy eating》(人教版必修3)】相关文章:
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (65)
★ 2017届高考英语二轮复习大题冲关秘籍语法填空:命题分析(含解析)
★ 【人教版】2014届高考英语一轮复习指导考点针对练:选修6 unit3《A healthy life》
★ 2017高考四川省广安市英语阅读理解一轮系列训练:13(含解析)
★ 天津市武清区杨村第四中学2016届高考英语一轮复习语法专题二《倒装句专练》课件外研版
★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ规范练:8(含解析)
★ 【北师大版】2014届高考英语一轮复习指导课时作业:Unit 2 A卷 Word版含解析
★ 【三维设计】2017届高考英语(江苏专用)二轮复习课件:必修3 Unit 3《Back to the past》
★ 四川省2016届高考英语一轮复习课时作业(39) Module 3 Literature 外研版选修8
★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ题型重组训练:第10组(含解析)
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21