I'm a hundred percent sure later you'll be grateful you did it.

3．(2015·重庆高考单选)You must be Carol. You haven't changed a bit after all these years.

4．(2015·四川高考单选)You must be careful with the camera. It costs! 5．(2015·福建高考单选)—Sorry, Mum! I failed the job interview again. —Oh, it's too bad. You should_have_made (make) full preparations. 6．(2014·全国样卷语法填空)Are they there? Oh, my goodness. I must have put them there when the phone rang.

7．(2014·大纲卷单选)Although you can find bargains in London, it's not generally a cheap place to shop.

8．(2014·江苏高考单选)It was sad to me that they, so poor themselves, should bring me food.

9．(2014·北京高考单选)Can/May I have a word with you? It won't take long. 10．(2013·辽宁高考单选)Harry is feeling uncomfortable. He must_have_drunk (drink) too much at the party last night.

11．(2012·重庆高考单选)—Must you interrupt now? Can't you see I'm on the phone? —Sorry Sir, but it's urgent. Ⅱ.单句改错

1．(2015·全国卷Ⅰ短文改错)We must found ways to protect the environment. If we fail to do so, we'll live to regret it.found→find

2．(2014·全国卷Ⅱ短文改错)We can lie on the grass for a rest, or sat by the lake listening to music. sat→sit

虚拟语气

[深化认知]

一、if条件句中的虚拟语气

if条件 从句 表示与 现在事 实相反 表示与 过去事 实相反 表示与 将来事 实相反 从句的谓语形式 动词过去式(be的过去式用were) 主句的谓语形式 should/would/could/might＋动词原形 should/would/could/might＋have＋过去分词 had＋过去分词 should＋动词原形 动词过去式 (be的过去式用were) were to＋动词原形 should/would/could/ might＋动词原形 If you didn't smoke so much, you might get rid of cough sooner. 如果你不抽那么多烟，你可能很快就不咳嗽了。

We would have called a taxi yesterday if Harold hadn't offered us a ride home.

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