1 | Grammarly是什么？
Grammarly是一款英语语法纠正和校对工具，支持Windows、Mac、iOS和Android等多个平台。它能够检查单词拼写、纠正标点符号、修正语法错误、调整语气以及给出风格建议等；对学术写作来说，Grammarly还可以帮助查重。
Grammarly
2 | Grammarly有哪些功能？
- 单词拼写检查；
- 纠正错误的标点符号；
- 改正语法错误；
- 调整语气（高级版和商业版）；
- 给出整体风格建议 （高级版和商业版）；
- 英文论文查重（商业版）。
3 | Grammarly免费吗？
Grammarly各个版本的功能
对于中国用户最经常使用的单词拼写、标点符号和语法错误，Grammarly都是免费的。如果想要使用更高级的功能，可以购买高级服务和商业服务。这个价格对于中国人来说还是比较高的，但可以在网上买到价格低廉的共享账号。
高级服务和商业服务的价格
4 | 如何使用Grammarly？
在线使用Grammarly。经过简单的注册后，就可免费在线使用Grammarly的基本功能。你可以打开新的工作窗口，开始写作，Grammarly会随时标注出出现的错误，并给出修改提示。这种方法只限于浏览器中输入的内容；你也可以上传写作完成的整个文档，交给Grammarly进行检查。
安装Grammarly的Chrome浏览器插件使用。这种方法只限于浏览器中输入的内容。
在Word里安装Grammarly加载项。这种方法只限于word中输入的内容。
下载安装Grammarly桌面客户端。强烈建议使用桌面客户端。使用这种方法是，不管是Word、浏览器还是记事本中，只要有文字输入，Grammarly都会对输入文字的正确性进行检查。需要注意的是，与其他大部分软件不同的是， 除了系统托盘中出现的标志外，Grammarly在安装后没有通常的程序界面。你在输入文字时，屏幕上会出现一个大写“G”的标志，说明软件正在正常工作。
“G”表明软件正常工作
Grammarly的使用效果如何？
下面这段内容中共有10处错误，看看你能找出几处。
Today I tried cooking a simply dish myself. I like eating frying tomatoes with eggs, and I thought it must to be easy to cook. My mom told me how to preparing it. First I cut the tomatoes into pieces but put them aside. Next I broke the eggs into a bowl and beat them quickly with chopstick. After that I poured oil into a pan and turned off the stove，I waited patiently unless the oil was hot. Then I put the tomatoes and the beaten eggs into pan together. ＂Not that way，＂ my mom tried to stop us but failed. She was right. It didn’t tum out as I had wished.
将这段文字拷贝到word里，看看Grammarly的表现如何。
Grammarly共找出了九处错误，表现还算可以。没有找出的错误在这里：First I cut the tomatoes into pieces but put them aside. 这里的“but”应该改成“and”才对。
下面再来一段稍难一点的内容，也是10个错误。为节省时间，我直接把错误处用粗体标注出。
Now, it is clear that the decline of a language must ultimately have political and economical causes: it is not due simply to the bad influence of this or that individual writers. But an effect can become a cause, reinforce the original cause and producing the same effect in an intensified form, and so on indefinitely. A man may take drink because he feels himself to be a failure, and then fail all the most completely because he drinks. It is rather the same thing that is happening to the English language. It becomes ugly and inaccurate because our thoughts are foolish, but the sloven of our language makes it easier for us to have foolish thoughts. The point is that the process is irreversible. Modern English, especially written English, is full of bad habits which spread by imitation and which can be avoided if one is willing to take the necessary trouble. If one gets rid of these habits one can think more clearly, and think clearly is a necessary first step towards political regeneration: so that the fight against bad English is not frivolous and is not the exclusive concerning of professional writers. I will come back to this present, and I hope that by that time the meaning of what I have said here will have become clearer.
这次，Grammarly这表现有些差强人意，只找出了7处所谓的错误，而且这七处错误中，只有三处是真正的错误。
从上面的展示，我们可以看，Grammarly提供的功能比较基础（也许付费版本功能更强大？），它只能进行基础的单词拼写、明显人语法错误方面提出修改意见，但无法修改你的逻辑与行文结构。对于国内一般的英语学习者来说，还算是一个不错的工具选择。