在这段视频中，我们将讨论陷阱答案的选择。这在ACT阅读部分很重要，因为问题和 the answer choices in those questions are written in a very specific way, so that they contain traps. So you can't just go for the right answer, have it jump out at you, obviously, because again, there are so many almost, but not quite right answer choices.

And what we're gonna learn about today is what makes an answer choice wrong. So starting off here, these wrong answers fall into one of 我们将要学习的几个类别。很容易消除其中的一个或两个，因为它们是完全错误的， 我们将在这里讨论，但至少有一个陷阱答案的选择是非常棘手的。

因此，了解这些类别可以帮助你快速选择正确的答案，并消除其他三个答案的选择。 So the type of trap answers we have start at the first one here. Opposite of what was said or reverses the terms. So everything looks right, but then instead of saying A causes B, it says B causes A.

如果你读得很快，你就会忽略一个事实，即术语是颠倒的。 所以不要读得太快。下一步我们有太极端。 Once you've seen this a few times, you're less likely to fall for it but these are answer choices that contain words like never, always, all.

大多数时候，但不总是，但大多数时候，这些答案的选择是错误的，所以要提防他们。 Next we have the not mentioned in passage. A second ago I talked about how some of them are just clearly wrong, well this would be the category they fall into. They're simply not mentioned in the passage.

The passage never said that at all, so we can throw away these answer choices right away. What's more subtle than that is when it's actually contained, the answer choice is contained in another part of the passage, you can actually look 在通道说,是的,这就是saying in this part. However, the question is not asking about that part of the passage, and therefore, 这个答案是错误的。

所以你要多加防范。最后，我们有可能是最棘手的一批， 这就是所谓的腐败点。所以我想让你想象一下你在超市里 在你面前，你看到了这个苹果。你要拿着那个苹果吃。

我知道这是完全违法的，你不应该在超市里这样做，但它太好了，闪闪发光，美味可口，所以你就拿着它 you stick it in your mouth and eat it. Well wait a second, something was a little bit off about that story besides the fact that you're eating an apple in a supermarket. What was off about it was when you pick up a fruit, what do you always do?

你把所有东西都拿在手里，因为你在找一个烂地方。 And that's exactly what you have to do with this type of answer choice. You have to read the entire thing. 如果有一个部分掉了，即使只是一个词，那么整个事情都错了，你把苹果放回去，你就不吃了。

Same with the answer choice. And so, the idea is don't look at the nice shiny part and say, that's the answer. You wanna read the entire thing, because guess what? The rotten spot usually comes at the end of the answer choice, which most people 我已经停止读到这一点，因为第一部分是如此美丽和闪亮。好吧，我们现在要做的是，我给你们展示了这五种不同的分类， is we are going to read, or you are going to read the passage.

I'm going to tell you to pause it here in a moment. This, by the way, is a passage that we went over in the approaching the passage lesson video. So if you haven't done that one already and you wanna get a sense of what this passage is about, go ahead and do that as well. But if you've looked at that lesson recently, but 如果你想再复习一下，现在可以暂停视频并阅读。

Okay, I assume you paused or unpaused the video. You are not done with this passage. 我们也要这么做。暂停视频，然后我们将继续。 好吧，我假设你暂停了视频并取消了暂停，现在你有足够的信息来回答下面的问题。

我想让你们做的，除了试着回答这个问题，是想想我们刚才讨论的类别，你们可以回到视频中 球员的一部分，然后标签A，C，C和D其中一个类别。当然其中一个答案是对的。 And if you think you have the right answer, just put right or correct or whatever you wanna use to show that you think that is the correct answer.

好的，我让你暂停录像回答问题。好吧，我想你已经暂停了视频，回答了问题，然后 now, let's take a look at each answer choice, starting with A. It has been extremely useful in experiments in the past and will continue to be practical in the future. Was it useful in experiments in the past, extremely useful?

Yes. Clearly shows that Priestley found it useful, that's kinda the thrust of the passage, and will continue to be practical in the future. Does it mention that? 它说了吗？现在，你可能会想，嗯，可能是，可能是， 但是如果这篇文章没有提到它，那就把它扔掉。

So here, it's not mentioned in the passage, slash a little bit of a rotten spot there too because if you've just read the first part, 闪亮的苹果看起来不错，那么你可能会掉进这个陷阱。让我们看看B。它不涉及任何问题 偶然的发现。等等，它和意外发现有关。

So again, if you're reading really quickly, you don't pick up on the word, not, just looking at the shiny stuff, then you're gonna get this one wrong. C、 尽管它被视为一种无聊的有机体，但它在科学上却被证明是惊人的有用。 在这里，我们可以想，嗯，是的，它有点，因为这是文章的重点。

这是一种无聊，它甚至在第一段说，有点无聊，没有那么有趣，但后来证明是真正有用的。 So that is the answer. Now, let's look at D. Without algae, we never would have discovered how photosynthesis works. Yeah, without algae, we would never have discovered how photosynthesis works, right?

因为那个家伙有藻类，然后他就发现了光合作用，等等。 那是什么词？从未。 我们永远不会？这是一个极端的例子。

We don't know that for sure. Someone else could've found out about photosynthesis, 它的工作原理，不使用藻类。我们只是不知道太极端，我们永远不会发现，而且 因此，我们可以消除它，我们的答案是C。好吧，我们还没有结束，因为那只是一个。

This is fun, lets do a second one, because Priestley went away for three months. Same thing, pause the video, answer the question but more importantly, when you eliminate an answer choice because it's wrong tell me which category does it fall into. Okay, pause the video. Okay, I assumed you've paused it.

让我们继续，我们从一开始，他的水藻都死了。他们都死了，不，有点极端，对吧？ Or rotten spot in this case or both really. So the idea is that some of his but not all of his algae died. 其中一些做得很好。还记得CF吗？

It grew in the sunlight. He could document the effect C fontinalis CF had on sunlight. There it is. And CF, there it is, sunlight. All that good stuff. 我们需要说的话，等等。但是等一下，它颠倒了术语的顺序。

It's not the effect C fontinalis had on sunlight, which is kinda weird. You can imagine the big sun way up there and all of the sudden, the sun's like, God, look at all that C fontinalis down on Earth affecting me. Obviously, it's the reverse of that. 太阳正在影响扁桃体。C、 他不得不重新开始他的气体实验。

Did it ever say that? Well no it simply didn't. 这就是扔掉的东西。这篇文章没有提到。 Get rid of it right away. And that leaves us with D, he was able to observe the effects of sunlight, that is our answer.

注意，证据就在那里，这是从这段话，如果你不确定，总是回到这段话，看看 确保你的答案是基于课文中所说内容的答案。好的，重述一下。 这里的目标，不是要马上回到正确的答案上。好了，闪光灯，是对的， 因为这常常是个陷阱。

The goal is to eliminate wrong answer choices by identifying which one of the common trap areas or categories that answer choice falls into. 现在，了解这些答案选择陷阱，并通过在这里练习的方式来掌握它们，将使你不太可能上当。 现在，不要觉得你必须对每个人都这么做。慢点说，好吧，那又是哪一类？

I know it's totally wrong, but let me see, which category is it. That's just eating up time. 不要这样做，当你归结到两个答案的选择，你不能完全消除一个，这是非常有用的。 当然，你会想弄清楚它属于哪一类，最好总是回到这段话， 找到答案选择的支持文本，然后使用这两件事，你很可能会得到正确的答案。