【用be supposed to do sth句型造十个句子】“Be supposed to do sth” 是英语中一个非常常见的表达方式，用于表示某人应该做某事，或者某事按计划或期望应该发生。它常用来表达责任、义务、约定或预期。以下是对该句型的简要总结，并附上十个例句，帮助大家更好地理解和运用。
一、句型结构总结
基本结构：
be (am/is/are/was/were) + supposed to + 动词原形
- am/are/is 用于一般现在时
- was/were 用于一般过去时
含义：
- 表示“应该做某事”（责任、义务）
- 表示“被期望做某事”（约定、安排）
- 表示“被认为应该做某事”（推测）
二、例句展示（10个）
| 序号 | 句子 | 中文意思 |
| 1 | I am supposed to finish my homework before dinner. | 我应该在晚饭前完成作业。 |
| 2 | She is supposed to arrive at 8 o'clock. | 她应该在八点到达。 |
| 3 | They were supposed to meet us at the station. | 他们应该在车站和我们见面。 |
| 4 | You are supposed to wear a uniform to school. | 你应该穿校服去学校。 |
| 5 | The meeting was supposed to start at 10 a.m. | 会议应该在上午十点开始。 |
| 6 | He is not supposed to leave the room without permission. | 他未经允许不应该离开房间。 |
| 7 | We are supposed to submit the report by Friday. | 我们应该在周五之前提交报告。 |
| 8 | The package was supposed to be delivered yesterday. | 这个包裹应该昨天送达。 |
| 9 | You're supposed to know the answer. | 你应该知道答案。 |
| 10 | They are supposed to have finished the project by now. | 他们到现在应该已经完成了项目。 |
三、使用小贴士
- “Be supposed to” 不等于 “have to”，后者更强调强制性，而前者更多是期望或责任。
- 在口语中，有时会省略“to”，例如：“You’re supposed to go.” 但正式写作中应保留“to”。
- 注意时态的变化，根据上下文选择合适的“be”动词形式。
通过以上例句和说明，希望大家能够更自然地使用 “be supposed to do sth” 这个句型，提高英语表达的准确性和地道性。
