摘要：在非限制性定语从句中，关系代词“which ”之前需要加逗号。此外，“which ”所指代的内容有两种情况：一是指代前面的先行词(物体)，二是代表前面整个句子的含义。因此，在英语写作中，如果用到非限制性定语从句的时候，必须正确使用逗号。今天要修改的原创英文中，

在非限制性定语从句中，关系代词“which ”之前需要加逗号。此外，“which ”所指代的内容有两种情况：一是指代前面的先行词(物体)，二是代表前面整个句子的含义。因此，在英语写作中，如果用到非限制性定语从句的时候，必须正确使用逗号。今天要修改的原创英文中，就存在这方面的问题，同时还伴有其他语法错误。先看看原文吧，你能发现几个问题？

一，发现问题

二，分析问题并修改

（一）这里的关系词which一定是指代前面一句话的含义，这时必须有逗号隔开。

1.It comes to Friday again, which means the end of the first week for the new term and new school. ……又到星期五了，这意味着新学校新学期的第一周就要结束。[微风][烟花]

2.Henry always talks in class, which we hate very much.亨利上课期间老是讲话，我们太讨厌了。

3.Her mobile phone, which cost 7000 yuan, is quite beautiful.她的手机很漂亮，花了7000元。

关系代词which指代手机。

（二）句子要有谓语动词

announcing不是谓语动词，是现在分词或动名词形式。谓语动词是动词原形，过去式和第三人称单数形式。本句谓语动词是过去式announced

A new notice from her headteacher announced the arrangement of……

（三）可数名词单数在句中不能单独存在，不管离开这个可数名词有多远，也要保证有数量限定词。可数名词week是单数形式。根据语境，这里的数量限定词应该是“那个”的意思。

A new notice from her headteacher announced the arrangement of the upcoming military training week.[微风][烟花]

根据语境，优化词汇和语法，我最后的修改版本如下

It comes to Friday again, which means the end of the first week for the new term and new school. ……A new notice from her headteacher announced the arrangement of the upcoming military training week.

三，总结

下面是DeepSeek对我的评价

思考题[微风][烟花]有错就改

1.This is the expensive dictionary which I have bought in the past few years.

2.Paper was first made in China which is known to all.

3.My uncle works in small power company.

4.The school, which my sister studies, is very beautiful.

5.The house, which I want to buy, costs too much.

来源：郑老师KMYYZY