## 1. 句子释义
"Let sb. do sth." 是一个英语动词短语,意为“允许或让某人去做某件事情”。在这个结构中,“let”是动词,表示许可或授权,"sb." 是“somebody”的缩写,代表第三人称,"do sth." 意味着“执行某个动作或行为”。这个短语通常用于表达同意、建议或者请求某人执行一个特定的动作。
## 2. 用法
### 2.1 表示许可或同意
- You can let me clean the kitchen tonight. (你可以让我今晚打扫厨房。)
- Let her make the decision; it's her choice. (让她做决定吧,这是她的选择。)
### 2.2 表示建议或请求
- Let's start the meeting now. (让我们现在开始会议吧。)
- Let him explain himself before you judge him. (在你评判他之前,让他先解释一下。)
### 2.3 表示假设或想象
- If I were you, I'd let her know how you feel. (如果我是你,我会告诉她你的感受。)
- Let's pretend we're on a beach in Hawaii. (让我们假装我们在夏威夷的海滩上。)
## 3. 例句
- Let me help you with that heavy bag. (让我帮你拿那个重袋子。)
- The teacher let the students work in pairs for the next exercise. (老师让学生们两人一组完成下一个练习。)
- Don't let the dog run loose in the park. (不要让狗在公园里乱跑。)
- She let him go without saying goodbye. (她没说再见就让他走了。)
## 4. 同义词辨析
### 4.1 Allow
"Allow" 与 "let" 在许多情况下可以互换使用,两者都表示给予许可。然而,"allow" 常常带有更为正式或权威的意味,例如:
- The school allows students to use their smartphones during breaks. (学校允许学生在休息时使用智能手机。)
### 4.2 Permit
"Permit" 也表示允许,但通常用于更正式的场合,如法律、政策或规章制度:
- You'll need a permit to camp in this area. (你需要许可证才能在这个区域露营。)
### 4.3 Have
在某些语境下,"have" 加宾语加动词原形可以表示“让某人做某事”,但这通常强调的是使某事发生,而非简单的许可:
- I had my brother fix my computer. (我让我弟弟修理了我的电脑。)
### 4.4 Get
"Get" 与 "sb. to do sth." 结合时,表示促使某人做某事,有时带有一种说服或影响的含义:
- I got her to change her mind about the trip. (我说服她改变了旅行的主意。)
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