14个情态动词笔记整理
情态动词即表示能力、意愿、推测等语气的动词，共14个，包括can、could、may、might、shall、should、will、would、must、ought to、need、dare、used to和had better等。这些情态动词在英语中非常常见，并且经常用于不同的语境下。以下是有关这14个情态动词的要点笔记。
Can
Can是一种最常用的情态动词，表示一个人有能力去做某事。它可以用于表达熟练技能，或表示普通能力，如：“I can speak English very well.”、“I can drive a car.” Can也可以用于请求或委婉的建议，如“Can you help me with this task?”、“Can we talk in private?”
Could
和Can类似，Could表示过去或未来某个时间点的能力，但它蕴含的情感更加委婉或客气。比如，“Could you please pass me the salt?”、“I could have done better in that test.”
May
May表示一种可能性，也可以用于请求或许可。比如，“May I come in?”、“It may rain later.”
Might
Might也表示一种不太确定的可能性，但它的程度比May更弱。比如，“It might snow tomorrow.”、“I might be late for the meeting.”
Shall
Shall用于表示一种建议或将要发生的事情。比如，“Shall we go for a walk?”、“I shall meet you at the airport.”
Should
Should用于表示一种期望或建议，常常有“应该”这一语义。比如，“We should respect our elders.”、“You should make more efforts to improve your English.”
Will
Will主要用于表示未来的事情，通常是一种肯定或对于未来有一定计划。比如，“I will visit London next month.”、“She will graduate from college this year.”
Would
通常用于表示愿意、委婉地请求或建议。比如，“Would you like to have dinner with me?”、“I would prefer to have a quieter place to study.”
Must
Must常用于表示必须、绝对必要的事情。比如，“We must work hard to achieve our goal.”、“You must follow the safety rules when handling dangerous materials.”
Ought to
Ought to表示应该、理应如此，也可带有建议意味。比如，“We ought to respect our environment.”、“You ought to take a break when you feel tired.”
Need
Need表示一种必要，有时也可以表示委婉请求。比如，“I need to get a new computer.”、“Need I say more?”
Dare
Dare在某些语境下有一种挑战性和毒舌的意味。比如，“How dare you speak to me like that?”、“I dare you to try again.”
Used to
Used to表达习惯或过去的事情。比如，“I used to smoke, but I quit.”、“He used to be a great basketball player.”
Had better
Had better表示一种建议或有必要的事情。比如，“You had better study harder if you want to pass the test.”、“We had better leave now to avoid the traffic.”
以上是情态动词的常见用途。学习和使用情态动词不仅可以丰富我们的英语语言表达，还可以使我们在交流中更加得心应手。
