must/have to:
① 表示必須、必要,在回答問句時(shí),如果是否定的,必須用needn’t, don’t have to
eg. ---- Must I finish my homework before dinner?
---- Yes, you must.
---- No, you don’t have to / you needn’t.
② must是說話人的主觀看法, 而have to則強(qiáng)調(diào)客觀需要,have可根據(jù)時(shí)態(tài)人稱的變化而變化
eg.That film is interesting,I really must go to watch.
You have to get to school before 8 am.
③ 表示推測(cè)、可能性(只用于肯定的陳述句)
eg.You must know that,you are a teacher.
dare/need:
① dare作情態(tài)動(dòng)詞用時(shí), 常用于疑問句、否定句和條件從句中
eg.How dare you say that to me?
② need 作情態(tài)動(dòng)詞用時(shí), 常用于疑問句、否定句
eg. Need I finish my homework before dinner?
③ dare和 need也可以做實(shí)義動(dòng)詞來用,獨(dú)自充當(dāng)謂語(yǔ)。
eg.The little girl dares to go to school by herself.
好了以上就是這兩組詞的用法總結(jié)了,內(nèi)容不少,大家掌握得如何?情態(tài)動(dòng)詞是一種非常常用的輔助詞,尤其是在口語(yǔ)中,很多時(shí)候你甚至不用說完一個(gè)句子,只要說個(gè)情態(tài)動(dòng)詞,對(duì)方就能馬上懂你的意思,情態(tài)動(dòng)詞本身就因?yàn)槲鞣缴鐣?huì)的各類習(xí)俗而有了許多約定俗成的內(nèi)涵意義,所以各位學(xué)習(xí)者們一定不能忽視這個(gè)知識(shí)點(diǎn)。
本文來自:逍遙右腦記憶 http://www.yy-art.cn/chuzhong/1215828.html
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