affect和effect的区别，你大概已经学习过许多了。但是，你是否听说过"affected "和"effected "的区别呢？

“affected”和“effected”的区别是什么呢？在英语中，这是两个非常容易让人混淆的词。这两个词语分别适用于什么情况，而它们之间的区别又是什么呢？

Affected

Affected is the past tense form of the verb affect, which means to have an impact on something. If you have affected some change on a system, it means that you have been able to change the system at least a little bit.

Affected是动词affect（影响）的过去时态，表示对某事产生影响。如果你在某个系统上影响了某些改变，那意味着你至少能够轻微地更改这个系统。

Examples:

例子：

The election of the new president affected the country’s relationships with many different foreign countries and international organizations.

新总统的选举影响了这个国家与其他许多国家以及国际组织之间的关系。

That collapse of the housing market in the United States in 2008 affected the entire global economy and led to a worldwide economic downturn.

2008年美国房产市场的崩溃影响了全球的经济，导致了世界范围的经济倒退。

The decisions that I made in college have not affected the rest of my life as much as I thought that they would at the time that I made them.

我在大学期间做出的决定并没有如我做决定之时所想象的那样，对我的余生产生巨大的影响。

Effected

Effected is the past tense form of the verb effect. Effect can be used as a noun, but in the past tense form, it resembles the verb. To effect change means to execute, produce, or bring about change.

Effected是动词effect（产生）的过去时态。Effect可以作为一个名词使用，但是在它的过去形式之中，它是一个动词。产生变化，意味着去执行，产生或者带来某些变化。

Using the verb effected instead of affected almost always means that you have changed something, such as a law, judicial ruling, a cultural norm, or something else. If you merely made an impact on something, you should use affected.

使用动词effected而不是affected，通常是你已经改变了某件事情，比如法律，司法裁决，文化规范或者其他的东西。如果你只是对某件事产生了影响，你应该使用affected。

Examples:

例子：

The new emperor effected the changes that he had been talking about his whole life. 

这个新的君主做出了他这一生都在谈论的改变。

Contrary to the expectations of most people, the television show that focused on political satire effected significant change in the country's laws.

与大多数人的期望相反，这档聚焦政治讽刺的电视节目影对国家法律产生了重大的改变。

In the period of a couple months right after a tragedy occurs, government leaders have effected a lot of change because people are emotional and are more willing to take measures to prevent something like that from happening again.

悲剧发生后几个月的时间里，由于人民的情绪激动，更愿意采取措施来防止类似事件的再次发生，政府领导人做出了一些改变。

如何选择affected和effected的小窍门

If something already exists, it is usually affected, or influenced by something else. If it does not yet exist, like a new system that needs to be put into place, it is usually effected, or implemented.

如果某件事情已经存在了，通常是用“affected”或者“influenced”表示被影响到。如果尚未存在，比如一个需要建立的新系统，通常使用“effected”或者“implemented”，表示实现。