高二英語選修6模塊-文庫吧
2025-05-26 02:21 本頁面
【正文】 stay late but we can if we want to.◆obligation:You ought to call your mother.You should call your mother.These show that calling your mother is the right thing to do. There is no real difference between ought to and should, but ought to is perhaps a little stronger.We use needn39。t to show an action is optional I can do it if I want to. We use mustn39。t to say an action is forbidden I have no choice.■Making a dialogue talking about obligation or lack of obligationA: I have to work all day long tomorrow.B: You mustn39。t work all the time. You will ruin your health.A: Must I return the book tomorrow? B: Yes, you have to. A: He had to go because of somebody39。s calling him that day. B: I don’t think so. He could call back.A: I have lots of work to do. I don’t like to work on Sundays.B: You must do it now. A: I have to go now. B: But you must stay till he es.A: Need I attend the meeting tomorrow? B: No, you needn’t. You could read my notes taken at the meeting then.A: Must I hand in the paper this week?B: No, you needn’t. You need not hand in the paper this week. A: You ought to read these books if you want to know how to repair the motorcar. B: But I have no time to read them.A: You ought to bring the child here. B: All right. I will.A: You ought to have been here yesterday. B: But there have been much traffic.A: You ought not to have taken the book out of the readingroom. B: I did not know about the rules here.A: I have to go now. B: But you have to cook for my child. A: You must be here on time next time. B: Certainly. But we must go to get the timet
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