四、need與dare的用法對(duì)比表

　　對(duì)比點(diǎn) need dare

　　1.情態(tài)動(dòng)詞+動(dòng)詞原形

　　1)否定式

　　2)疑問式 He need not (needn’t)go.

　　----Need we do it again?

　　---No, you needn’t do it again. He dare not say so.

　　Dare she go out alone at night?

　　How dare you say I’m unfair?

　　If he dare do that, he’ll be punished.(條件句)

　　I dare say.(固定用法)

　　2.行為動(dòng)詞+帶to不定式

　　1)肯定式

　　2)否定式

　　3)疑問式 He needs to go.

　　He doesn’t (does not)need to go.

　　Does he need to do it again?

　　No, he doesn’t need ot do it again. He dares to say.

　　He does not(doesn’t)dare to say.

　　If you dare to jump into the water from here, so dare I .

　　3. did not need to do

　　表示過去沒有必要做 She didn’t need to attend the meeting yesterday, and she stayed with her children.(她沒有參加)

　　五、should與ought to用法對(duì)比表

　　對(duì)比點(diǎn) should ought to

　　1、表“應(yīng)該” 表勸告、建議

　　You should listen to the doctor’s advice.

　　We should learn from Zhang Hua 表示“有責(zé)任有必要”做某事

　　You ought to finish your work before you go home.

　　We ought to help each other.

　　2、表“估計(jì)”

　　They should get home by now. 表示“非常可能”的事，可譯為“總應(yīng)該”

　　If we start to work right now, we ought to finish it before lunch.(午飯前應(yīng)當(dāng)能干完)

　　注： 1)、should還可在虛擬語氣中的使用

　　2). 注意：ought to的疑問式及否定式

　　----Ought he to go? ----Yes, I think he ought to.

　　No, he oughtn’t to.

　　否定式：ought not to a或oughtn’t to do(不說ought to not do)

　　反疑問句：oughtn’t ______?

　　六、shall與will的用法對(duì)比表

　　shall Will

　　1. 征詢對(duì)方意見或請(qǐng)求指示，用于第一、三人稱：

　　Shall I (we)…?

　　Shall he (she)…?

　　Where shall I (we)wait for you? 1. 詢問對(duì)方的意思或向?qū)Ψ教岢鲆�求�?/p>

　　Will you(please)…? Won’t you…?

　　Would you like to…?(用would替代will更客氣)

　　----Won’t you go and see the film?你不去看電影嗎?---Yes, I think I will. 不， 我想去。

　　2. 表示說話人的“意愿”有“命令”“警告”“強(qiáng)制”“允諾”“決心”等，用于第二、三人稱，要重讀。

　　You shall do what I tell you ( to do).

　　我叫你干什么你就干什么。

　　Everything shall be done to save the ship.

　　一定要竭盡全力來拯救這艘船。 表示“意志”“意愿”，用于各種人稱：

　　I won’t do anything you don’t like.

　　我不會(huì)做任何你不喜歡的事。

　　Would表示過去時(shí)間的“意志”“意愿”

　　Shylock would not take the money earlier.

　　夏洛克先前是不肯要錢的。