It's time that you went to fetch your daughter from the kindergarten.

　　是你去幼儿园接女儿的时候了。

　　It's high time that you got down to work.

　　你该开始认真工作了。

　　注意：该句型中的谓语动词也可用"should＋动词原形"，表示对将来的虚拟，should一般不省略。

　　8．在in case，for fear that，in order that，so that引导的目的状语从句中，谓语动词一般用should/could/might＋动词原形，其中should可省略。

　　She walked quietly for fear that she might wake up her room­mates.

　　她轻轻地走，以免惊醒她的室友。

　　Have your gun ready in case we (should) need it.

　　把你的枪准备好，以防万一我们需要。

　　I have come all the way here in order that you should understand me.

　　我一路来到了这里为的是你会理解我。

　　Ⅰ.单项填空

　　1．Thank you for all your hard work last week.I don't think we________it without you.

　　A．can manage B．could have managed

　　C．could manage D．can have managed

　　答案　B

　　解析　could have done表示本能够做某事(但没做)。

　　2．-I'm sorry.I ________ at you the other day.

　　-Forget it.I was a bit out of control myself.

　　A．shouldn't shout

　　B．shouldn't have shouted

　　C．mustn't shout

　　D．mustn't have shouted

　　答案　B

　　解析　句意为："对不起，几天前我本不应该朝你大喊大叫的。""不要放在心上。我自己有点情绪失控。"shouldn't have done sth.本不应该做某事(但已经做了)。

　　3．She________have left school, for her bike is still here.

　　A．can't B．wouldn't C．shouldn't D．needn't

　　答案　A

解析　句意为：她不可能离开了学校，因为她的自行车仍然在这儿。can't表示不可能；wouldn't have done表虚拟；shouldn't have done本不该做(却已