could

简明释义

英[kʊd;kəd]美[kʊd;kəd]

v. （礼貌地请求许可）可以，能；（礼貌地请求别人做事）能，能否；（表示可能）可能，也许；（表示未发生的事情）差点就，本能够；（用于提出建议）可以，能；本该，应该（用于对做过或未做某事表示恼怒）；（强调感觉）真想；好像，仿佛

v. 能（can的过去式）

英英释义

单词用法

同义词

反义词

例句

1.Nobody could predict the outcome.

谁也无法预料结果如何。

2.Scientists warned that emergency cooling systems could fail and a reactor meltdown could occur.

科学家们警告说紧急冷却系统可能失灵，核反应堆的堆芯熔毁可能会发生。

3.Could we meet at lunchtime?

我们能在午餐时间见个面吗？

4.Sorry? Could you repeat the question?

你说什么？能不能把你的问题再说一遍？

5.If you could mobilize the resources, you could get it done.

如果你能调动资源，你就能完成它。

6.It could be a virus, or it could be all in the mind.

这可能是种病毒，或者可能全是凭空想像。

7.When I was younger, I could run for miles without getting tired.

当我年轻的时候，我可以跑几英里而不感到疲惫。

8.They could hear the music from the next room.

他们能从隔壁听到音乐。

9.I could finish this project by tomorrow if I work late.

如果我加班，我可以在明天之前完成这个项目。

10.If you studied harder, you could pass the exam.

如果你更努力学习，你可以通过考试。

11.She said she could help us with the event planning.

她说她可以帮助我们策划活动。

作文

The word could is a modal verb that plays a significant role in the English language. It is used to express possibility, ability, or permission in various contexts. Understanding how to use could effectively can enhance one's communication skills and allow for more nuanced expression. In this essay, I will explore the different applications of could through examples and explanations.

Firstly, one of the primary uses of could is to indicate past ability. For instance, when someone says, 'When I was younger, I could run five miles without stopping,' they are reflecting on their past capabilities. This use of could helps convey a sense of nostalgia and personal growth. Similarly, in a professional context, an employee might say, 'I could manage multiple projects at once when I worked at my previous job,' showcasing their skills and experience.

Secondly, could is often used to express possibility. For example, 'It could rain tomorrow' suggests that there is a chance of rain, but it is not certain. This usage allows speakers to discuss potential outcomes without committing to a definitive statement. In academic writing, one might say, 'These findings suggest that the treatment could be effective in reducing symptoms,' which opens the door for further investigation while remaining cautious about the conclusions drawn.

Furthermore, could is also employed to make polite requests or suggestions. For instance, saying, 'Could you please pass the salt?' is a courteous way to ask someone for something. This application of could softens the request, making it more respectful and less demanding. In a business meeting, one might suggest, 'We could consider revising our strategy based on the latest market research,' indicating a proposal rather than a command.

Additionally, could can be used in conditional sentences to express hypothetical situations. For example, 'If I had more time, I could learn a new language.' This use of could highlights the speaker's desire or intention that is contingent upon a specific condition being met. It allows for creative thinking and exploring possibilities that may not currently exist.

Lastly, the versatility of could extends to expressing permission in a more tentative manner. For instance, 'You could leave early if you finish your work' implies that leaving early is allowed, but it is dependent on the completion of tasks. This usage is particularly useful in educational settings, where a teacher might say, 'You could submit your assignment by Friday, but earlier submissions are welcome.'

In conclusion, the word could is a powerful modal verb that enriches the English language by allowing speakers to express past abilities, possibilities, polite requests, hypothetical situations, and tentative permissions. Mastering its use can lead to clearer and more effective communication. Whether in casual conversations or formal writings, understanding the nuances of could can significantly improve one's language skills and interpersonal interactions.

单词could是一个情态动词，在英语中扮演着重要角色。它用于表达可能性、能力或在各种语境中的许可。有效理解和使用could可以提升一个人的沟通技巧，使表达更加细腻。在这篇文章中，我将通过示例和解释探讨could的不同应用。

首先，could的主要用法之一是指过去的能力。例如，当有人说：“我年轻的时候，我could不间断地跑五英里”，他们是在回忆自己的过去能力。这种用法帮助传达怀旧感和个人成长。同样，在专业环境中，员工可能会说：“在我之前的工作中，我could同时管理多个项目”，展示他们的技能和经验。

其次，could常用于表达可能性。例如，“明天could下雨”暗示有可能下雨，但并不确定。这种用法使说话者能够讨论潜在结果，而不必承诺一个明确的陈述。在学术写作中，人们可能会说：“这些发现表明这种治疗could在减轻症状方面有效”，这为进一步研究打开了大门，同时对得出的结论保持谨慎。

此外，could也可以用于礼貌请求或建议。例如，说：“Could你把盐递给我吗？”是一种礼貌的请求方式。这种用法使请求更加温和，更加尊重。在商务会议中，人们可能会建议：“我们could根据最新的市场研究考虑修改我们的策略”，表示一种提议而非命令。

另外，could可以用于条件句中，表达假设情况。例如，“如果我有更多时间，我could学一门新语言。”这种用法强调说话者的愿望或意图，取决于特定条件的满足。它允许创造性思维和探索当前可能不存在的可能性。

最后，could的多功能性延伸到以更为谨慎的方式表达许可。例如，“如果你完成了工作，你could提前离开”暗示提前离开是被允许的，但这取决于任务的完成。这种用法在教育环境中特别有用，教师可能会说：“你could在星期五之前提交作业，但欢迎提前提交。”

总之，单词could是一个强大的情态动词，通过允许说话者表达过去的能力、可能性、礼貌请求、假设情况和谨慎的许可，丰富了英语语言。掌握其用法可以导致更清晰和更有效的沟通。无论是在日常对话还是正式写作中，理解could的细微差别都能显著提高一个人的语言技能和人际交往能力。