英:/''ʃʊdnt/ 美:/''ʃudnt/
不應該，不應（等于should not）
You shouldn't do that.
你不該那麼做
You shouldn't knock the food. After all, it's free!
你不應該批評這個食物。畢竟，這是免費的！
Life is full of challenges. Being happy shouldn't be one of them.
生活充滿挑戰。快樂不應是挑戰。
You shouldn't put off until tomorrow the things that you can do today.
今天該做完的事不能拖到明天。
We shouldn't be surprised to hear these big bosses have mistresses on the side.
這些大佬有情婦的消息不足為奇。
You really shouldn't mess around with fire. Someone could get hurt!
你真的不應該亂玩火。有人會受傷的！
Clothes shouldn't define a person. Actions should define people.
衣服不能定義一個人，行為才能定義人。
You shouldn't get angry with your daughter. Extreme fluctuations in mood are normal for teenagers.
你别跟你女兒生氣。青少年情緒極度波動是正常的。
I don't agree with the regulations governing income taxes. People shouldn't have to give away their hard-earned money.
我不贊同個人所得稅的管理辦法。人們不應該把辛苦所得的錢散出去。
I had some pretty restless sleep last night. I knew I shouldn't have drank that coffee in the afternoon!
昨晚我睡得非常不安穩，我就知道下午我不該喝咖啡的。
As long as we leave before 3:00 traffic shouldn't be a problem.
隻要我們在3:00前離開，應該不至于堵車。
You really shouldn't be playing on your phone during company meetings.
你真的不應該在開公司會議的時候玩手機。
Kids nowadays shouldn't even have a smartphone in the first place.
今天的孩子本來就不該拿手機。
You shouldn't drink and drive.
你不該酒後駕車。
You shouldn't drive so fast.
你不應該把車開得這麼快。
Oops, I shouldn't have said that.
哎喲，我不應該說那些。
You shouldn't exercise on a full stomach.
你不應該吃飽了就運動。
They shouldn't be striking for more money.
他們不該為更多的錢而罷工。
“shouldn't”的詳細解釋
“shouldn't”是英語中“should not”的縮寫形式，屬于情态動詞的否定結構，主要用于表達建議、義務或推測的否定含義。其核心含義為“不應該”“不應當”或“不太可能”。以下是具體分析：
基本定義與用法
“shouldn't”表示在特定情境下不適宜、不被允許或不符合預期的行為。例如：
You shouldn't touch the hot stove.（你不應該碰熱爐子。）
此處強調對危險行為的勸阻。
牛津詞典指出，“shouldn't”常用于口語和書面語中，語氣比“must not”更委婉，但比“don't have to”更具建議性（來源：Oxford Learner's Dictionaries）。
語法結構與語境
He shouldn't eat junk food every day.（他不該每天吃垃圾食品。）
It shouldn't rain tomorrow according to the forecast.（根據預報，明天不太可能下雨。）
If I were you, I shouldn't ignore the warning.（如果我是你，我不會忽視這個警告。）
常見錯誤與辨析
“shouldn't”強調義務或合理性，而“wouldn't”側重于意願或習慣性拒絕。
錯誤：He shouldn't answer the phone.（應修正為“wouldn't”表示“他不願接電話”。）
劍橋英語語法指南提到，正式寫作中需避免過度使用縮寫形式，應優先使用“should not”（來源：Cambridge Dictionary）。
權威例句參考
"You shouldn't drive so fast," she said nervously.（“你不該開這麼快。”她緊張地說。）
The instructions say we shouldn't mix these chemicals.（說明書指出我們不應混合這些化學品。）
通過以上分析可見，“shouldn't”在英語中承擔多重功能，需結合語境準确理解其否定含義。
音标：
全稱：should not
詞性：情态動詞否定式（Modal Verb Negative），由情态動詞should 和否定詞not 縮合而成。
基本定義：
Youshouldn't eat expired food.（你不該吃過期食品。）
Heshouldn't be careless next time.（他下次不該粗心。）
語法規則：
Sheshouldn't open the windows.（她不該開窗。）
Should Linda wash the shoes? – No, sheshouldn't.
使用場景：
Youshouldn't work all day without moving.（你不該整天坐着不動。）
Studentsshouldn't use phones in class.（學生不該在課堂上用手機。）
The trainshouldn't be delayed.（火車按理不該晚點。）
語氣強度：
Youmustn't smoke here.（禁止吸煙） vs. Youshouldn't eat junk food.（建議少吃垃圾食品）
委婉表達：
原句：Youshouldn’t leave your stuff here.
替換：Let’s not leave our stuff here.
虛拟語氣與過去時态：
Ishouldn’t have said that.（我不該說那些話。）
shouldn't vs. oughtn't to：
Youshouldn’t lie.（你不該撒謊。）→ 主觀建議
Yououghtn’t to break the law.（你不該違法。）→ 強調責任
shouldn't vs. don't have to：
Youshouldn’t skip breakfast.（不該不吃早餐） vs. Youdon’t have to pay now.（不必現在付款）
shouldn't 是英語中表達否定建議、義務或邏輯判斷的核心情态動詞，需注意其與mustn't、oughtn’t to 等詞的語氣差異，并在實際使用中根據語境調整表達方式以避免生硬。通過例句練習和場景模拟，可有效掌握其靈活用法。
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