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义务（must, have to, should） 练习 用英语
在学习英语的过程中，掌握一些常见的语法现象是非常重要的，其中“义务”类词汇是我们经常会遇到的。这些词汇包括“must”、“have to”和“should”，它们在不同的语境中有各自的用法和含义。通过系统的学习和练习，你将能够更准确地表达自己的义务和责任，以及理解他人所传达的信息。
在本页面的练习中，我们将提供多种多样的句型和情境，帮助你深入理解和灵活运用这些义务类词汇。无论是通过选择题、填空题还是翻译练习，你都能巩固所学知识，并在实际交流中自如地使用“must”、“have to”和“should”。希望这些练习能够提升你的英语表达能力，使你在学习和生活中更加自信和从容。
Exercise 1
<p>1. You *must* finish your homework before playing video games (表达必要性).</p>
<p>2. Sarah *has to* take the train to work every day (表达义务).</p>
<p>3. We *should* eat more vegetables to stay healthy (表达建议).</p>
<p>4. He *must* wear a uniform at his job (表达必要性).</p>
<p>5. They *have to* submit the report by Friday (表达义务).</p>
<p>6. You *should* see a doctor if you're feeling unwell (表达建议).</p>
<p>7. Students *must* follow the school rules (表达必要性).</p>
<p>8. She *has to* wake up early for her morning class (表达义务).</p>
<p>9. We *should* recycle more to protect the environment (表达建议).</p>
<p>10. He *must* pass the exam to graduate (表达必要性).</p>
Exercise 2
<p>1. You *must* wear a helmet when riding a bike (necessary action for safety). 必须的行动。</p>
<p>2. I *have to* finish my homework before I can watch TV (obligation before leisure). 在休闲前的义务。</p>
<p>3. She *should* apologize for her mistake (advised action). 建议的行为。</p>
<p>4. We *must* attend the meeting tomorrow (mandatory attendance). 必须参加的会议。</p>
<p>5. They *have to* leave early to catch the train (obligation to avoid missing the train). 避免错过火车的义务。</p>
<p>6. He *should* eat more vegetables for better health (recommended action for health). 为健康建议的行为。</p>
<p>7. You *must* show your ID to enter the building (necessary for entry). 进入大楼的必要条件。</p>
<p>8. I *have to* call my parents every weekend (obligation due to family expectation). 家庭期望的义务。</p>
<p>9. She *should* study harder to improve her grades (advised action for better performance). 为提高成绩建议的行为。</p>
<p>10. We *must* be quiet in the library (necessary behavior in a specific place). 在特定场所的必要行为。</p>
Exercise 3
<p>1. You *must* wear a helmet when riding a bike (义务, 强制要求).</p>
<p>2. She *has to* finish her homework before watching TV (义务, 强制要求).</p>
<p>3. We *should* recycle more to help the environment (义务, 建议).</p>
<p>4. He *must* take his medicine every day (义务, 强制要求).</p>
<p>5. They *have to* arrive at the meeting on time (义务, 强制要求).</p>
<p>6. You *should* eat more vegetables for better health (义务, 建议).</p>
<p>7. The students *must* submit their assignments by Friday (义务, 强制要求).</p>
<p>8. She *has to* call her parents every week (义务, 强制要求).</p>
<p>9. We *should* exercise regularly to stay fit (义务, 建议).</p>
<p>10. He *must* follow the rules of the game (义务, 强制要求).</p>
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