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It's a simple problem, but I just want to do it so you get used to working with vectors.
这是个简单的问题,但我还是想做一下好让你们习惯矢量运算
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These patterns of "I've been" are so useful to say what you want to do in the future in relationship to the past.
当你想表达过去与你将来想做的事情之间的联系时，“I've been”句型特别有用，
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And so, what I want to do is begin by doing a little bit of introduction so you get to know what's going on.
还有，我开始要做,一点的介绍,你们就能知道它是这么回事了。
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And the final point I want to make today, and this is very, very important, so make sure that you do understand this.
而今天我要强调的最后一点，也是非常，非常重要的一点，因此请务必真正理解它。
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OK. So, what do I want you to take away from this? This idea of binary search is going to be a really powerful tool. And it has this property again, of chopping things into pieces.
从这里学到些什么？二分查找的思想,是一个非常有用的工具,我重复一遍，把问题拆成几部分来解决,那事实上，这里的增长率是多少？
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First, I want to ask you though, what do you think of this so far?
首先，我要问你们，你们现在的想法是怎样的？
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If you think so, what response do you want to offer to the objections that I'm giving?
如果你觉得有,你会如何驳斥,我的反对意见呢
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The reason why I do put them up is so that you have the opportunity if you want to see it again or if you have to miss a class.
我之所以把资料放在网上是为了,让你们可以重温或者学习错过的课程。
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So the problem I want to do-- there are many things you could do but I just picked one, and this is the one with round numbers, so I can do it without a calculator.
我想讲的这道题,类似的题目很多,但我就选了其中一个,这道题涉及的数字都是整数,所以我不需要计算器
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There are so many ways in which that has changed the world, but I can't do justice to it but Hanson does, so if you want to read, fields Without Dreams, you can ponder the significance of this great change.
有太多改变这个世界的因素了,我很难全部都客观地讲出来,但是汉森可以,你可以在《遗梦之野》中有所了解,你可以仔细琢磨这些伟大的变革
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And this is what linguists do for a living so if you hear me talking about this and say, "I want to spend the next forty years of my life studying that," you should become a linguist.
这就是语言学家们研究的问题,如果你听了我的讲解然后说,"我想用我的余生来研究这些东西",那你该去做一个语言学家
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So it's a tough economy and you'd say, "Well geez, I want to do a startup. Is there going to be an investment out there? Well geez, I want to sell to customers and they're going to need to buy equipment to do things, or geez I want to appeal to advertisers, and there's got to be a consumer demand out there."
因此经济愈发不景气，你们会说“天哪，我想要卷土重来,会有人给我投资吗？,我想向人们出售产品,他们会需要买些设备来做事的，哦天哪，我想向广告商招标，总会有消费者需求的“
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So I could -- and the hint here is that looks like you probably do want to use CS50's library because I've included the so-called header file for it.
所以我可以--这里的提示看起来好像,你可能的确想使用CS50的函数库,因为我包含了所谓的头文件。
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So what I want you to start thinking about is: do you believe this model?
我想让你们应该考虑下,你相信这个模型吗
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Well let's see. My fall back is, I could just do linear search, walk down the list one at a time, just comparing those things. OK. So that's sort of my base. But what if I wanted, you know, how do I want to get to that sorted list? All right?
我只能做线性搜索了,一次遍历一遍列表，一个一个比较，但如果我想要,那怎样得到有序的列表呢？,现在的一个问题是，我们排序之前？
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So what do I want you to notice about this?
我希望你们注意什么呢？
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So what I want to do today is look closely first at the selections from Black Boy that I asked you to read and to look at those as a text and to ask ourselves what kind of story it is.
它们细微的差别,我先读部分《黑孩子》,先前我布置给大家去阅读,并思考几个问题,我发现了什么,故事是什么类型。
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OK, not a quiz for points or anything, don't freak out, but I do want you to tell me who these people are. So, what about this person?
我们的课程将由一个小测试开始，别紧张，这不记录分数的,但我希望你们能告诉我这些人是谁？
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So what I want to do in this class is be honest with you and tell you, "You've really done work here to be extraordinarily proud of yourself" versus "Yeah, you've done something okay" or "You've done good work.
所以我想在这个课程里和你们坦陈相待，你们真的是在学东西,让自己及其骄傲“,而不是说你们做的差强人意“,或是你们干的不错。
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