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情态动词，must 和 have to 练习 用英语
情态动词在英语学习中占据着重要的地位，其中 must 和 have to 是我们常见的两个表示“必须”的动词。虽然它们在某些情况下可以互换使用，但实际上它们有着细微的区别。must 通常用于表达说话者的主观看法或强烈建议，而 have to 则更倾向于客观地表达外部的规定或必要性。例如，"You must see a doctor"（你必须去看医生）更多地表达了说话者的强烈建议，而 "You have to see a doctor"（你必须去看医生）则更可能是因为某种外部原因或规定。
在本页的练习中，我们将通过各种句子结构和情境，帮助你更好地理解和掌握 must 和 have to 的用法。练习内容将包括填空、选择题以及句子改写等多种形式，旨在帮助你在实际应用中区分和正确使用这两个情态动词。无论你是初学者还是有一定基础的学习者，这些练习都能为你的英语能力提升提供有力支持。准备好了吗？让我们一起来深入探讨 must 和 have to 的用法吧！
Exercise 1
<p>1. You *must* wear a helmet while riding a bike (强制性要求)。</p>
<p>2. She *has to* finish her homework before she can watch TV (必要条件)。</p>
<p>3. They *must* be quiet in the library (规则或规定)。</p>
<p>4. He *has to* wake up early for his morning run (日常习惯)。</p>
<p>5. You *must* not touch the exhibits in the museum (禁止行为)。</p>
<p>6. We *have to* submit the report by Friday (截止日期)。</p>
<p>7. She *must* apologize for her mistake (道德义务)。</p>
<p>8. They *have to* leave the house by 8 AM to catch the train (时间要求)。</p>
<p>9. You *must* listen to the teacher during the lesson (课堂规则)。</p>
<p>10. He *has to* take medicine every day for his health (健康需求)。</p>
Exercise 2
<p>1. You *must* wear a seatbelt while driving. (法律要求)</p>
<p>2. She *has to* finish her homework before she can go out. (老师的规定)</p>
<p>3. He *must* be very tired after working all night. (推测)</p>
<p>4. We *have to* leave early to catch the first train. (时间紧迫)</p>
<p>5. You *must* not smoke in this building. (禁止)</p>
<p>6. They *have to* pay the rent by the end of the month. (经济责任)</p>
<p>7. She *must* be the new manager; everyone is greeting her. (推测)</p>
<p>8. He *has to* take his medicine every day. (健康要求)</p>
<p>9. You *must* apologize for your mistake. (道德义务)</p>
<p>10. We *have to* submit the report by Friday. (最后期限)</p>
Exercise 3
<p>1. You *must* wear a helmet when riding a bike. (obligation, safety)</p>
<p>2. She *has to* finish her homework before going out. (necessity, homework)</p>
<p>3. We *must* respect the rules of the game. (obligation, rules)</p>
<p>4. He *has to* wake up early to catch the train. (necessity, transportation)</p>
<p>5. You *must* tell the truth in court. (obligation, honesty)</p>
<p>6. They *have to* leave the house by 8 AM to avoid traffic. (necessity, timing)</p>
<p>7. She *must* take her medicine every day. (obligation, health)</p>
<p>8. We *have to* complete the project by next week. (necessity, deadline)</p>
<p>9. You *must* turn off your phone in the theater. (obligation, etiquette)</p>
<p>10. He *has to* study hard to pass the exam. (necessity, study)</p>
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