10 情态动词.pptVIP

2）用于表示愿望 Go where you will . He wouldnt let the doctor take his blood pressure . They had to obey whether they would or not . 3）表示习惯、倾向（可译成“总是会、老是” 等） Sometimes the cat will lie there all afternoon . He would sit there for hours , doing nothing at all . You would think that creating a blog should be simple. 4）表示猜测（可译成“一定是……、想必……，等” ） The person you mentioned would be the father , is that right ? That would be in 1999 , I think. 5）will用于表示决心（可译成一定要,决心等） We will never talk about that subject again .I will make this computer work even if I have to stay up all night . 2. 关于情态动词后面接进行式和完成式的情况一般说来，进行式表示动作正在发生或进行；完成式则表示动作是发生在过去或是表示按理是发生了但事实上却没有发生。下面分别讨论一下各种具体情况。 A. 关于情态动词后面接进行式的情况can后面接进行式 表示可能正在发生的动作，例如：What can she be doing at this moment ? You cant be telling us the truth. Can he be still thinking of it I told him ? may后面接进行式表示可能正在发生的动作，例如：Your mother may be waiting for you to return home .She may be leaving for New York tomorrow or some day . They may be returning back before Christmas . might后面接进行式表示可能正在发生的动作，例如：They might be planning to make a loan for their new project .She might still be crying for being wronged .You might be telling me a lie . must后面接进行式 表示想必正在做某事，例如：You must be thinking where I learned it . They must be following us just a little behind us .My brother must be sleeping in bed for its so quiet in the house . should后面接进行式表示应该正在做某事，例如：You should be doing your exercises instead of watching TV. You shouldnt be thinking about the solution only in one way . Why should I be waiting here without doing anything ?  B.关于情态动词后面接完成式的情况 can后面接完成式 表示可能已经做了某事。例如：He can‘t have left home because the television is on .Where can they have gone ? You can’t have finished the novel so soon .could后面接完成式 表示本可能发生或本可以做的事而没有发生或没有做；它的否定形式则表示本不可能发生或本不可以做的事而已经发生或已经做了。例如：The output could have been increased by 15% . How could he have forgotten him birthday ? Judging from her appearance and manners, she couldnt have been ov