(2)　　　you do, don't ask for a pay increase.

(3)　　　 attractive they look in the store, once I get them home they're unfailingly dry, hard, and tasteless.

2 must have done

I am sure the whole of China must have felt proud when Xu Haifeng won the first gold medal for his country. 我相信,当许海峰为自己的祖国赢得第一枚金牌时,整个中国都为之感到自豪。(教材原句P23)

考点释义

must have done表示对过去情况的肯定推测,此用法只用于肯定句。

He must have sensed that I was looking at him. He suddenly glanced at me and said quietly, "Why are you staring at me like that?"他一定感觉到了我正在看他。他突然瞥了我一眼,然后轻轻地说:"你为什么那样盯着我?"(2018湖南 单项填空28)

You must have been naughty enough to have listened, or you could know nothing of our talk.你一定是不听话偷听了我们的谈话,不然你不会知道的。

发散思维

"must have done"结构的反意疑问句:

(1)若陈述部分的谓语有"must have done",而且有表示过去的时间状语,反意疑问部分用didn't...;

(2)若没有表示过去的时间状语,反意疑问部分用haven't...或hasn't...。

She must have attended the party last week, didn't she?她上周一定参加了聚会,对吗?

活学活用　完成句子

(1)Harry感觉不舒服。昨晚的聚会上他肯定喝得不少。

Harry is feeling uncomfortable. He　　　　　　　　　too much at the party last night.

(2)他一定认为我当时在开玩笑。

He　　　　　　I was joking.