选修6第一单元语法电子教案.ppt

Grammar;英语动词有三种语气， 陈述语气，祈使语气和虚拟语气。 一、陈述语气 (The Indicative Mood): 用来陈述一个事实，或提出一种看法，有肯定、 否定、疑问或感叹等形式。 The sun is larger than the earth. Does Tom usually get up very early? What a clever boy!;二、祈使语气(The Imperative Mood) 用来表示请求、邀请、命令、警告或劝告等。 Wait outside until you are asked . Let‘s just take a break, shall we ？ 其否定形式 是在动词原形前面直接加”do not” Don’t jump in the queue.; The Subjective Mood ???拟语气;Look at the sentences and tell when we use the Subjunctive Mood.;连接词;二、 与过去事实相反 ;If I __________(be) busy last night, I _____________(go) to see the film with you .;If he (drive) more carefully, he (have)the car accident yesterday.;If I ___________(know) your telephone number, ;三、与将来事实相反 ;1.如果你早来5分钟，你就赶上这趟车了。;四、虚拟语气的几种特殊用法;②用介词短语代替条件状语从句。即用without, but for(要不是), given more time, on condition that(假如)， or (else),otherwise代替if从句 Without air, there would be no living things. I ______________________but for your help. 如果没有你的帮助我就不会成功。 ;③有时条件从句中的动作和结果从句中的动作发生的时间不一致，因此又叫“错综时间/混合虚拟条件句子” If she had followed the doctor’s advice last month, she would be quite all right now. If you had told me the news yesterday, I would not be worried now.; If I??_____________(ask) her for advice last week, I ______________(know) what to do now.;虚拟语气在宾语从句中的应用 ;He talks as if he _______(know)where she was. He talked about Rome as if he __________(be) there before. He opened his mouth as if he__________(say)something. ;2. 在would rather结构中;3.表示要求,命令,建议的虚拟语气;注意: 如suggest, insist不表示“建议” 或“坚持要某人做某事时”, 即它们用于其本意“暗示、表明”、“坚持认为”时,宾语从句用陈述语气。 He insisted that he was right. His expression suggested that he was angry.;1. The guard at gate insisted that everybody ____ (obey) the rules. 2. He insisted that she ___ (be)seriously ill and that ______ (send) to hospital at once.;Multiple choices;5. The teacher demanded that the exam _____ before eleven. must finish B. would be finished C. be finished D. must be finished 6._____ today, h