How can we get there?和How do we get there?

微友问题

　　你好，凌哥！请问六上第一单元的P6 对话部分中How can we get there?与第二单元的P15 词汇部分中How do we get there？有什么区别？

你好！

　　你的问题涉及到情态动词的语用功能和一般现在时态的语用功能。

（P6）

（P15）

　　P15下方还有一个问句How do you get to the USA from China?

　　用英语解释更直接：

　　a. When you are having trouble finding the right routine to another place, you can use “How can I get there?” Also if you don’t know whether you should take a bus, a train, etc., you can use “How can I get there?”

　　b. When there is a USUAL way which you don’t know, or you just want to test another person to make sure if he knows that way, you can use “How do we get there?” However, "How can we get there?" is also acceptable.

　　c. When we imply different possibilities/means of travelling, we may also use "How / In how many ways can we get there?"

　　不过对于部分读者来说，可能不是很方便，所以凌哥简单地用汉语说明一下：

　　1. 如果你找不到路了、或者迷路了、或者不知道需要乘坐什么交通工具去，可以使用How can I get to the hospital?

　　2. 如果你向打听去某地常用的路线或出行方式，可以使用How do we get to there? 使用How can we get there?也是可以的。

　　3. 如果你想要知道有几种可能的出行路线或方式，就只能使用In how many ways can we get there? 简化成：How can we get there? 这种情况下，与can表示可能性有关。