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But again, that we will supply for you on the exam just in case you forget it at that moment.
但在考试中我们会给出这个值,以防你当时忘记了。
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Have you met any difficulties in taking the tests?
你在考试中遇到过什么困难吗？
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Anything that's mentioned there is fair game for me in an exam and that's the way I've done it.
在这部分出现的内容,都可能在考试中出现,这就是我考试的方式
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And I'll just point out here also, this is a conversion factor you'll use quite frequently -- many of you, quite on accident, will memorize it as you use it over and over again.
你们会经常用到，所以你们可能,会不小心记住它的值，但我们并不会在,任何考试中。
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They do extremely well on the first test and conclude that chemistry is in the bank and they can focus on the other subjects.
它们在首次考试中取得了好成绩,总的来说化学是根基,他们可以在其他事情上投入精力。
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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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Grading - 30% of the grade is for the mid-term, 30% for the final, and the final is not cumulative, the final covers only things for the last half of the course, so it's really just like a - covers half the course but it's given during the final exam period.
关于分数,总分的百分之三十来自于期中考试,百分之三十来自期末考试,期末考试并不包括学期的全部内容,只涵盖后半学期的课程,这真的像中期考,但在期末考试时间段里进行
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And if you get good grades in your GCSEs,
如果在毕业考试中，你的成绩很好，
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Because there will not be time to look at that code for the first time during the quiz, and figure out what it's doing.
因为在考试中,是没有时间去第一次看代码，并弄懂它的意思的。
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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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Once you're doing this on your own, -- especially, for example, on exam 2, which is a ways down the road, you won't be able to look at those steps, so you need to make sure that you can go through them without looking at them, but for now we can look at them as we are actually learning how to draw the Lewis structures, and rather just go through them step-by-step, it's more interesting to do it with an example.
每当你要画一个路易斯结构的时候，特别是，比如，在第二次考试中，在不远的将来，你将看不到这张表，因此你需要确保自己在不看这张表,的情况下也能按照上面的流程来画，但是目前我们是可以看着这张表,来学习如何画路易斯结构的，而相比于一步一步地讲，通过例子来演示一下会更有意思。
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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 if you want to on an exam, you can just write this down quickly at the beginning and refer to it as you're filling up your electron configurations, but also if you look at the periodic table it's very clear as you try to fill it up that way that the same order comes out of that.
如果你们想要在考试中，你们要在开始时快速地把这个写下来,然后在填充电子构型,的时候参考它，但是如果你们看着周期表,它就非常清楚了当你们将它用从那产生的,同样的顺序来填充。
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And you will be invited to make that mistake on an exam, I'm sure.
我相信在考试中你们有人肯定,会犯这样的错误。
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