省略主语
- (You give me) a cup of tea, please. 一杯茶
- (You wait for) another minute. 两等一分钟
- (You) keep quiet. 保持安静
- give me a break. 饶了我吧
- take your hand off. 把你的手拿开
- take this thing away 把这东西拿开
- never talk to strangers. 永远不要跟陌生人说话
- Don't speak ill of others behind them. 不要在背后说别人坏话。
- Never do it again. 永远不要这么做了
- one more. 再来一个
let
let后面可以跟动词、形容词、副词、介词短语。
- let me come in. 让我进来
- let the door open. 让门开着
- let me down. 让我下来
- let me in. 让我进来
- let it go. 放手吧
- let us buy one. 让我们买一个吧
祈使句否定语气，区分对主语否定还是对动词否定。
- Don't let me do it. 别让我做
- Don't let us tell him the truth. 别让我们告诉他真相。
- let us not tell him the truth. 让我们别告诉他真相。
- Don't let us do the homework. 别让我们做作业
- let us not do the homework. 让我们别做作业了
不定代词
- (everyone) Don't move. 都别动
- someone tell me. 来个人告诉我
- everyone come in. 都进来
- anybody home? 有人在家吗？
公共场合提示
- No (taking) photos. 禁止拍照
- No smoking. 禁止抽烟
- No littering. 禁止乱扔
- Keep off the grass/No treading on the grass. 禁止践踏草坪
反义疑问句
反义疑问句通常用于确认信息或表达不同的态度，它由一个陈述语和一个简短的疑问部分组成。
大部分场景下，反义疑问部分与陈述句时态一致：
- He didn't call you, did he ? 他没给你打电话吧（难道你给他打电话了？）
- You have eaten, haven't you? 你已经吃过了吧（难道你没吃？）
- He is watching TV, isn't he ? 他在看电视吧（难道他没在看电视？）
- You eat at home, don't you? 你平均都在家吃饭吧（难道你不在家吃饭？）
祈使句的反义疑问句，用will表示对将来的疑问：
- Don't tell him, will you? 别告诉他，行吗？
- tell me , will you? 告诉我，行吗？
- let's go out, shall we? 我们出去吧，行吗？