The in class mid-terms--the grades will be roughly 10% problem sets, 20% first mid-term, 30% second mid-term, 40% final.
期中那次是随堂考,在最后成绩中,习题成绩占10%,第一次期中占20%,第二次期中占30%,期末考试占40%
I also want to note that the end of the material today, so this last topic here, that's the end of the material that's going to be on this first exam.
我还想告诉大家,今天这些内容结束的地方,这个最后的主题,也就是第一次考试,要考到的地方。
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。
Anyway we have our second mid-term exam on Monday and it will be like the first mid-term but it will be less mathematical.
无论如何,我们在周一会有我们第二个期中考试,并且它将会像第一次期中考试一样,但是数学方面会涉及的更少。
Get out a piece of paper. This is your first exam.
请准备一张纸,这是你们第一次考试。
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。
It decreases. If you're still not completely up on the periodic trends, that is stuff that's going to be on the first exam, so make sure that you're able to do this without taking too much time to think about it.
它会降低,如果你还没有完全掌握周期性规律,而这是第一次考试要求的内容,因此请务必做到不用,想太久就能做到这点。
So, if you compartmentalize things in your brain in certain ways, put that off into the end of the exam 1 part of your brain, and now we're going to move on to exam 2.
如果你喜欢以自己的方式将信息在大脑中分开储存,这就是你大脑里对第一次考试的分区所存储的全部内容,而接下来我们将继续将第二次考试的内容。
And actually before we start into today's topics, I want to remind everyone and hopefully you all do remember that our first exam is coming up and it's coming up in exactly a week, so it'll be a week from today, next Wednesday.
实际上在这之前,我还要提醒大家一下,希望大家都记得,我们的第一次考试就要到了,就在下周,距离今天正好一周,下周三。
Let's move on to the last topic in terms of this first exam, which is thinking about the idea of isoelectronic atoms, or isoelectronic ions. And isoelectronic is very straightforward, it just means having the same electron configuration.
下面我们继续讲第一次考试的最后一个主题,也就是等电子原子,或等电子离子的概念,“等电子的“是非常直接的表达,它的意思就是具有相同电子排布的。
So, I said I would announce it, that's the end of exam 1 material.
那么,我说过我会宣布的,到这里就是第一次考试内容的全部。
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。
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。
So that's going to be the end of the exam 1 material, and then we'll move on to exam 2 material, which is kind of exciting, because we've been talking about just individual atoms and ions up to this point, and now we can talk about molecules, so we're going to start talking about bonding.
到此为止就是第一次考试的内容,接下来我们会开始讲第二次考试的内容,这些内容令人有点兴奋,因为我们一直都只是在讨论单个的原子,和离子到目前为止,而现在我们可以讨论分子了,要开始讨论成键的问题了。
All right, so we can go to today's notes, and in terms of the notes, what we're going to start with is finishing material that's going to be relevant for exam 1, and I told you on Wednesday that actually I'd give you some information today in terms of what you need to do to prepare for exam 1.
好,下面我们进入今天的讲义内容,而依照讲义,我们今天首先,要把第一次考试要求的最后一部分内容讲完,而且我周三曾经告诉过大家,我会在今天把一些信息告诉大家,是关于如何准备第一次考试的。
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