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Study in the app →English · CEFR Band 1 (A1) · Chapter 42
Can you use this app? 你会用这个应用吗？
我们用 "can" 谈论科技和能力。词汇：smartphone、computer、app、internet、password、account、message、social media、use、download、useful、drive。重要语法："can" + 动词原形。用 "can" 表示能力（"I can swim"、"She can drive"、"I can speak English"）、可能（"You can pay with your phone"）、许可或提议（"Can I sit here?"、"You can use my computer"）。否定是 "cannot" 或缩写 "can't"："I can't swim"。最重要的规则："can" 后接动词原形，不加 "to"。注意：很多学习者在 "can" 后加 "to"（像 "want to"、"like to"）："I can to swim" ✗ → "I can swim" ✓。文化角（§6）：科技与英语。
Dialogue
Going to the beach — 去海边
- Emma Minsu, let's go to the beach on Saturday. Do you like swimming? 民秀，我们周六去海边吧。你喜欢游泳吗？
- Minsu Yes! But I can to swim only a little. 喜欢！不过我只会游一点点。（口误："can" 后接动词原形，不加 "to"：I can swim）
- Emma Ah, after "can" there's no "to". Say "I can swim only a little". 啊，"can" 后面没有 "to"。说 "I can swim only a little"。
- Minsu Ah, I see. "I can swim only a little." What about you? 啊，我懂了。"I can swim only a little."（我只会游一点。）你呢？
- Emma I can swim well, and I can drive too. So I can drive us to the beach. 我游得很好，我也会开车。所以我可以开车带我们去海边。
- Minsu Great! Then I can download a map app. It's very useful. 太好了！那我可以下载一个地图应用。它很有用。
Dialogue
A useful app — 一个有用的应用
- Jack Emma, can you use this app? 艾玛，你会用这个应用吗？
- Emma Yes, I can. It's very easy. You can send messages for free. 会。很简单。你可以免费发消息。
- Jack Useful! Can I download it now? 有用！我现在能下载吗？
- Emma Of course. But you need an account and a password. 当然。不过你需要一个账户和密码。
- Jack I can make an account. These days everyone can stay connected online. 我会创建账户。如今大家都能在线保持联系。
- Emma True! Technology can make life easier. 真的！科技能让生活更轻松。
Vocabulary
- smartphone
-
noun 智能手机
- computer
-
noun 电脑
- app
-
noun 应用程序
- internet
-
noun 互联网
- password
-
noun 密码
- account
-
noun 账户
- message
-
noun 消息、短信
- social media
-
noun 社交媒体
- use
-
verb 使用
- download
-
verb 下载
- useful
-
adjective 有用的
- drive
-
verb 开车、驾驶
Grammar
"can" + 动词：能力、可能、许可
Explanation
"can" 是情态动词，有三个作用。(1) 能力——你能做的事："I can swim"、"She can drive"、"I can speak English"。(2) 可能——可能发生的事："You can pay with your phone"、"You can download the app for free"。(3) 许可与提议："Can I sit here?"、"You can use my computer"。"can" 对每个主语都相同（I / you / he / she / we / they can）——绝不加 "-s"。否定是 "cannot"，通常缩写为 "can't"："I can't swim"。关键规则："can" 后面总接动词原形——不加 "to"。注意：因为 "want"、"like" 等动词接 "to"（"I want TO go"），很多学习者也在 "can" 后加 "to"："I can to swim" ✗ → "I can swim" ✓。"can" 后面去掉 "to"。
Examples
- I can swim. 我会游泳。
- She can drive a car. 她会开车。
- You can pay with your phone. 你可以用手机付款。
- Can I use your computer? 我可以用你的电脑吗？
- I can't speak French. 我不会说法语。
Culture
Technology and English 科技与英语
英语与科技紧密相连。英语是互联网的主要语言，学会它就打开了一个巨大的数字世界。事实上，即使在其他语言里，很多科技词也是英语——世界各地的人都说 "app"、"online"、"download"、"email"。所以你学英语的同时，也在学习现代数字生活的语言。
互联网的语言
A very large share of the world's websites are in English, and English is the common language of technology companies and programming. That is why so many English words have entered other languages: "click", "online", "selfie", "streaming". Even if you do not live in an English-speaking country, you will meet English every day on the internet. Knowing these words helps you use apps and websites more easily — and helps you learn English at the same time.
发短信与缩写
When people text or chat in English, they often use short abbreviations to save time: "LOL" (laughing out loud), "BRB" (be right back), "OMG" (oh my god), "BTW" (by the way), "TTYL" (talk to you later) and "IDK" (I don't know). People also add emoji to show feelings. These are casual and friendly — great for chatting with friends, but NOT for a school essay or a formal email. It is useful to recognise them, because you will see them everywhere online.
正式、非正式与自动更正
Online English is often relaxed: people drop capital letters, use contractions like "I'm" and "don't", and skip full stops. That is fine with friends, but for a school essay or a work email you should write full, formal English. Also, phones use "autocorrect" and predictive text, which can be helpful but sometimes change your word into a funny wrong one — so it is good to check before you send. Being aware of tone — casual or formal — is an important part of using English online.
科技是练习英语最好的方式之一。你可以把手机语言改成英语、用语言应用、看带字幕的视频，或在网上和朋友聊天。通过你已经在用的科技，每天一点点英语，会很快积累起来。所以打开一个应用，试试看吧！
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