I have just received a letter from my brother ,tim 一定要用完成式吗?出自新概念_英语解答

I have just received a letter from my brother ,tim 一定要用完成式吗?
出自新概念第二册第四课
用 I just received a letter from my brother
或 I just receive a letter from my brother 不行吗
我怎么感觉新概念第二册不少完成时的句子现在跟过去时意义没啥区别

人气：349 ℃　时间：2019-10-12 15:28:05

解答

收到来信,是指到现在为止,我刚收到过一封哥哥的来信.现在完成时,是与现在有关的.如果是一般过去时,received那么就只表示发生在过去的事情,与现在无关.
如：I studied abroad 3 years ago,but now I am working in China.三年前在国外学习,但是现在在国内工作.三年前的行为,已经与现在无关了.
I have studied abroad for 3 years .说明已经在国外学习三年了,现在还在国外学习