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I don't expect you'll all immediately grab it, but you will need to understand it before the quiz comes along.
我不期望你们马上就能掌握，但是你们需要在,考试前弄懂它。
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For sure, they're all hard. Yes, studying, I have to do a lot of studying here.
肯定有过，所有的考试都很难。确实，我需要非常认真的学习。
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You can't take the exam unless you're registered for the class, and we need to make sure we can verify that.
否则你是不能参加这次考试的,除非你注册了这门课，而我们需要确定你能证实这一点。
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There will be some computations, so something to calculate with.
考试中会有计算，所以需要计算工具。
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If we want to know the total heat added to the system, we can measure it, which is the straightforward thing, but sometimes you want to calculate in advance, or sometimes you want to calculate it on an exam.
如果想知道给系统的总热量，我们可以测量，这是很直接的事情，但有时候我们想事先计算它，或者需要在考试中计算。
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And so I joked, badly, I'll agree, at the end of last lecture, that we can just stop now, go straight to the final exam, because this is all you need to know.
所以我在上次演讲快结束时说了个拙劣的笑话，我会同意我们可以到此为止,直接进行期末考试，因为这些是你们需要知道的所有内容。
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So whether we finish it today, or more likely when we finish it up on Friday, once we get passed isoelectronic atoms, that's it, that's all you need to study for this first exam.
因此，我们也许今天讲完，或者更有可能周五讲完，无论如何，就到我们讲完等电子原子为止，这是你们第一次考试所需要准备的全部内容。
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I'll be really, really clear when we get through them, and that's where you can stop in terms of studying for this.
我会在讲完这部分的时候非常清楚地提醒大家，到此为止就是你考试需要学习的部分。
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for exam 2, you still need to know and understand everything you learned in exam 1, but you can put off learning it completely until we get through, at least, next Wednesday before we start maybe spending time on these concepts outside of class.
为了掌握第二次考试的内容，你仍然需要知道和理解,在第一次考试前所学的全部知识，但是你可以先放一放，等到我们进行到，至少在下周三我们可能开始不在课堂上,讲这些内容之前。
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These won't be graded, you don't have to turn them in, it's just to give you some extra practice if you want while you're studying for the exam.
这些题目不会记分，你们也不需要交上来，只是如果你需要的话，这可以让你,在准备考试的过程中得到更多的训练。
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And as a reminder, hopefully I don't need to remind any of you, but exam 1 is on Wednesday, so rather than our clicker question being on something from last class, which is exam 2 material, let's just make sure everyone remembers some small topic from exam 1 material, which is the idea of angular nodes.
而作为一个提醒--我希望大家都不需要提醒，但是这周三就要进行第一次考试了，因此我们的这个选择题,不是关于上节课内容的，那是第二次考试的内容，这里只是想确认大家都记得,第一次考试所要求的一些小问题，也就是关于角向节点的概念。
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If you have an isobaric you're going to have to calculate where the energy changes, and that's a calculation that's likely on the homework and very like on an exam as well, too.
在等压过程中,我们需要计算能量的变化，我们在作业,和考试中,就会遇到这类问题。
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So this is going to tell you pretty much everything you need to know in terms of getting ready for the exam, which is next Wednesday.
这上面包括了几乎,所有的你需要知道的,关于如何准备这次考试的信息，考试时间是下周三。
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So, today we're going to introduce the chemistry topics, which we will cover in 5.111, and give you general information, practical information about the course number of points you need, when the exams are, that kind of thing, policies, and introduce you to the teaching staff.
今天，我们将向你们介绍这门课会涉及的化学问题，并告诉你们一些基本信息和实用信息，像你需要的课程分数,考试时间，课程政策，以及授课教师。
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So, in terms of what it is that you need to prepare and bring with you for the exam, you need to bring your MIT ID, especially if you haven't been showing up regularly to your recitations and you aren't 100% sure if your TA knows exactly who you are, you need to make sure you have your MIT ID with you.
那么，关于你需要做哪些准备,考试可以带哪些东西，你需要带着你的学生证，尤其是如果你没有经常地参加,习题课,你不能百分之百保证,你的助教确实认识你，那么你更得确保自己到时带着学生证。
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Second thing is, if you have an MIT documented special need for taking quizzes, please see John or I well in advance.
第二件事，如果你有MIT证明的,需要取消考试的特殊要求，请提前来见John和我。
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So what we need to do here is use the Rydberg formula, and actually you'll be given the Rydberg formulas in both forms, both or absorption and emission on the exams.
我们需要用到Rydberg公式，事实上，在考试时,我们会给你们Rydberg公式的两种形式。
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I don't care how you do it on exams or on problem sets, but you do need to be aware that the 3 d once filled is lower in energy than the 4 s, and the reason you need to be aware of that is if you're asked for the electron configuration now of the titanium ion.
我不关心你们在考试或者,问题集中如何做它，但是你们的确需要知道3d一旦被填充,它的能量是小于4s的，你们需要知道这个的原因,是如果你现在被要求,写出钛离子的电子构型。
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