Presentation on theme: "Modal verbs: should and ought to We can use the modal verbs shouldought to should and ought to to say what is best or right to do. shouldought to should."— Presentation transcript:
shouldought to We use should and ought to with other verbs. do not change their from after the modal verbs. These verbs do not change their from after the modal verbs. Wrong? If so, correct it We should talk it over. He should to ask for suggestions. You ought to concluded the meeting. They ought take notes. She should votes for herself. to In short: 任何主语 + should do + ought to do
Fill in a verb and then make the sentences into negative form. 1.He should _____ responsible for it. 2.You ought to _____ such a decision. Fill in a verb and then make the sentences into questions. 3. While listening, we should ____________. 4.Before listening, we ought to _______ the article quickly. make concentrate go over He should not be responsible for it. Ought we to go over the article ? be You ought not to make such a decision. Should we concentrate?
should 和 ought to 的意思都是 “ 应该 ” ，用于表达 ① 恰当的建议， ② 纠正别人的错误， ③有 责任。 should 的语气比较委婉更常用， ought to 的语气比 较强，有时带有责备或督促的意味。 should 和 ought to 在用法上要注意以下几点： 1. 本身没有数和时态形式的变化。 2. 后面接动词原形。 3. 可用来构成否定句、疑问句及简明答语。 总结：情态动词 should 和 ought to
should 和 ought to 的句式： 肯定句 : I should do… I ought to do… 否定句 : I should not( 缩写 shouldn’t)do … I ought not( 缩写 oughtn’t)to do… 疑问句： Should I do…? 回答 :Yes, I should. No, I shouldn’t. Ought he to do…? 回答： Yes, he ought to. No, he ought not to.