跟读练习: The Rise Of Open-Source Software - 通过视频学习英语口语

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Much of the software that powers the world's largest companies, protects our personal data, or encrypts national security information is open to the public.

Anyone can download the source code behind Facebook's user interface, Google's Android operating system, or even

Goldman Sachs' data modeling program and use it as a building block for a totally new project.

What's more, lots of this software is actually developed collaboratively.

Created and maintained by an army of thousands, from unpaid volunteers to employees at competing tech companies.

As a kid in a small town in Virginia, I could get connected to the best developers anywhere on earth

and learn from them and even read the code that they'd written.

I really wanted to give back.

And these people were always my heroes.

So I wanted to participate too.

And my voice mattered.

It was just immediately I was hooked.

This is the collaborative world of open source software, where code is written and shared freely.

If individuals catch a bug or see an opportunity for improvement,

they can suggest changes to the code and thereby become a contributor to some of the biggest software projects on Earth.

But this model hasn't always been the norm.

At the dawn of the Internet era through the late 1990s, proprietary software proliferated.

Microsoft even went so far as to call open source un -American and bad for intellectual property rights.

Software was a finite commodity that people hoarded and wanted to sell as a product.

Open source software was only developed and maintained by a dedicated few.

And there was this fringe world,

there was this academic world who were creating software according to their own rules and sharing it publicly and making it free.

Certainly dreamed, like wouldn't it be awesome if we could sort of take over the world.

Now, open source has essentially taken over the world.

companies in every industry from Walmart to ExxonMobil to Verizon have open sourced their projects.

Microsoft has completely changed its point of view and is now seen as a leader in the space.

And in 2016, the U .S government even promised to open source at least 20 % of all its new custom -developed code.

So whether you know it or not, you are relying on volunteer labor in many cases of thousands of strangers from around the world.

In the 1970s, the MIT Artificial Intelligence Lab had a printer that regularly jammed.

So staff programmer Richard Stallman altered its source code so that when problems arose, it would send a message to everyone in the lab saying,

go fix the printer.

When the lab finally got a new printer, Stallman discovered its source code was inaccessible.

He asked for the code, got refused, got upset, and ultimately quit his job to develop a completely open operating system called GNU in 1983.

With this, Stallman spearheaded the free software movement from which the open source movement was born.

It's sort of a very natural way to work together.

Collectively, if everybody comes and contributes their piece,

you end up with something that's a lot greater than something that an individual could contribute on their own.

But throughout the 1980s and the 1990s, proprietary software still dominated.

And that was a very lucrative way of producing and selling software

and created an incentive for large technology companies to create a proprietary de facto standard.

It was against this backdrop that the open source operating system

Linux was unceremoniously released in 1991.

It incorporated many elements from Stallman's GNU project, but was mainly used by hobbyists looking for an alternative to Windows or Mac OS.

Throughout the decade, though, Linux gained momentum as large companies took advantage of its flexibility

and tweaked the software to their specific needs.

By the turn of the century, NASA, Dell, and IBM were all using it.

The platform itself changes nine times an hour.

10 ,000 lines of code are added to Linux every day.

About 5 ,000 lines are changed and about 8 ,000 lines are removed.

It is by far the highest velocity, most effective software development process in the history of computing.

As Linux grew, other open source projects were also gaining popularity, like the database management system MySQL, the Perl programming language, and the web server Apache.

But for the layperson at the turn of the century, the rise of these technologies could have gone unnoticed.

After all, hardly anyone ran

Linux on their personal computers.

But then, in 2008, Google released

Android devices, which run on a modified version of Linux.

Suddenly, the operating system blew up the smartphone market.

We are still overwhelmed with the amount of innovation that is happening in that ecosystem of Android.

Today there are over 2 .5 billion active devices using Android.

As Google demonstrated, businesses were increasingly relying upon this complex web of open source technologies to build products and platforms quickly.

And whether they knew it or not, this also meant that they were depending upon the vast open source community to maintain this software.

The ability for one company to produce the amount of software that's required for any modern technology product or service became overwhelming.

Today in a modern luxury automobile, there are more lines of software code than in an F -15 fighter jet.

There's just simply too much software to be written for any single organization to ride it themselves.

99 % of Fortune 500 companies use open source.

Every web server is pretty much Linux.

Most people choose to use open source programming languages.

It's this like amazing buffet.

You just come in and take this, this, this, this, this, and you slap together something.

You can build amazingly powerful products with very little work.

The sheer increase in volume drove a need amongst developers for a central repository where they could collaborate on these huge projects.

And in 2008, GitHub provided an answer.

What GitHub really did for open source is it kind of standardized the way

that people can contribute to open source projects and interface with them.

And so that any developer anywhere on earth knew how to contribute to a project on GitHub.

And that fed this explosion of open source activity.

Today, GitHub hosts the grand majority of the world's open source software projects.

And in 2018, Microsoft even acquired GitHub, affirming the tech giant's commitment to open source development.

We have about 140 million open source or software projects that are on GitHub,

and over 50 million of those have been added just in the last year.

So it's growing incredibly fast.

And the community has expanded far beyond idealistic hobbyists, as major companies are increasingly leading the charge, spearheading the development of open source projects in -house.

So we see companies like

Intel, Google, Facebook, Amazon, Microsoft, all contributing heavily to open source.

Googlers have been contributing to over 28 ,000 projects in 2018.

This number includes projects that Google has driven, as well as contributions it's made to projects led by other companies or individuals.

In the open source world, you have these fierce commercial rivals who collaborate every day together and they haven't signed anything.

And it's not just software companies.

ExxonMobil has open sourced its developer toolkit.

Walmart open sourced its cloud management platform.

And Goldman Sachs recently open sourced its data modeling program.

This open source way of working turned out to be better

because even in a big tech company where you might have 20 or 30 or 50 ,000 developers,

you can't compete with the 40 million developers that are now on GitHub working on open source every day.

Put simply, open source development has become the new norm.

And so I expect to see more and more investment into open source communities and more and more projects,

as well as companies finding ways to commercially monetize the activity that's collected across all of these different open source communities.

So how is open source monetized when the product is basically given away for free?

Basically, the answer lies in selling support services, subscriptions, and or commercial versions of the software.

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Red Hat, founded in 1993, was the first to figure out a successful business model, which relies upon selling support services for its operating system,

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Red Hat Enterprise Linux.

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Anyone can download the software for free.

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But if businesses want technical support and greater security, they'll need to buy a subscription.

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After decades of commercial success, IBM officially acquired

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Red Hat in 2019 for $34 billion.

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It was the largest software acquisition in history.

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It's really groundbreaking and it just shows the power and success of open source across the world, across the industries.

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While Red Hat's 100 % open source model has been hard to replicate,

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other companies like database program MongoDB and integration platform MuleSoft rely upon an open core model, meaning the basic features are free,

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but add -ons and other useful elements are proprietary.

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As these companies have racked up multi -billion dollar valuations, there's no doubt that on the enterprise level, there's big money in open source.

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But as for the individual developers, the hobbyists who contribute to and maintain open source projects just for fun,

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their path to profitability is much less clear.

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There are a lot of different models for how people make money in open source.

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One of the models is actually they don't.

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A lot of them are volunteers and they do this in the free time, in the evenings and on the weekends.

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But sometimes these just for fun side projects end up becoming widely used, critical to the internet infrastructure that we generally take for granted.

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Certain projects get so popular and so widely used that, you know, they're in every product.

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They're used by every company.

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And then this result of like, you know, massive

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Fortune 100, Fortune 500 companies building their businesses on top of this code that's written by hobbyists for who knows what reason, right?

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As one might imagine, problems can arise

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when critical systems are based on software

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that's maintained by unpaid volunteers with no professional obligation to see to the maintenance of the project.

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This issue came to a head in 2014.

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When the security vulnerability dubbed Heartbleed was found in OpenSSL,

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an open source encryption technology that's used by the majority of web servers to protect users' personal data.

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The flaw has gone undetected for about two years and has exposed millions of usernames, passwords and possibly credit card info as well.

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They left this lock capable of being picked because they didn't write the code quite right.

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And when they looked into it, the OpenSSL team was tiny.

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It was just a few people who were mostly working on donations and their donations had started to dry up.

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And understandably, these incredibly talented programmers had a hard time justifying spending full time on this,

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even though it was one of the most important building blocks of the entire Internet.

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Ultimately, organizations like the Linux Foundation pulled together to provide financial support for OpenSSL, as well as other critical pieces of underfunded open source software.

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But the disaster served as a wake -up call for an industry that still largely relies upon unpaid labor.

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The burden on the maintainer can become quite intense.

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You have sort of all these businesses coming in and saying, like, you know, your code is broken.

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It's preventing me from getting my job done.

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And so you get this, like, almost intense guilt.

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I feel like a lot of maintainers have a guilt.

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Now, companies are taking note and helping to formalize new funding models.

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In 2019, GitHub rolled out their Sponsors program, which allows developers to give and receive recurring donations for their work.

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We already have some people who are making their full living on GitHub Sponsors, so they don't have another job.

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And so that's huge for us.

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And that's really the key number that we are trying to move up.

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For developers like Aboukadije, making a full -time living around open source is indeed the dream.

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I prefer the freedom of being able to just follow my interests wherever they go

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and solve whatever problems I think are interesting.

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I'll never make money from some of the stuff I've worked on,

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but I think I've done a lot of good in the world by working on it.

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It's still early days, but if funding models like GitHub sponsors pay off,

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we may see a new class of software engineers eschewing traditional tech jobs in favor of independent, open -source work.

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Open -source has created so much technological progress, but because it never quite solved this funding problem in those early years,

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I think that we are at a point now where we could lay the groundwork for the next stage of open source.

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This could also mean expanding the cooperative ethos to industries outside of software.

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As the idea of sharing technology and collaborating collectively expands,

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we're moving into open hardware initiatives, data sharing initiatives.

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And that's really going to be the future.

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After all, the success of open source reveals that collaboration and knowledge sharing are more than just feel good buzzwords.

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They're an effective business strategy.

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And if we're going to solve some of the world's biggest problems, many believe that we can't afford to hoard our resources and learnings.

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We have environmental concerns.

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We're trying to understand things like cancer and Alzheimer's.

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These are major collaborative efforts.

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The complexity of building these technologies isn't going down.

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It's only going up.

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We can get that technology out there faster when everybody works together.

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Thank you.

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本课的词汇与口语要点

这节口语课以视频“The Rise Of Open-Source Software”为素材。视频中反复出现的词有：source, software, project, companies, code。这段视频共有 95 个句子、2260 个单词可供跟读。讲话部分时长为 13:43。说话人语速自然，每分钟约 165 个词，接近日常对话。 84% 的单词属于英语最常用的 3,000 词，其余的词建议在练习前先学一下。

视频中的重点词汇

视频中 15 个值得学习的单词，附发音和释义：

单词	发音	释义
contribute 动词	/kənˈtɹɪb.jut/	貢獻 /贡献
rely 动词	/ɹɪˈlaɪ/	依賴 /依赖, 依靠
volunteer 名词	/ˌvɑlənˈtɪɹ/	志願者 /志愿者
proprietary 形容词	/pɹəˈpɹaɪ.ə.tə.ɹi/	業主的 /业主的, 專賣的 /专卖的
server 名词	/ˈsɝvɚ/	服務器 /服务器, 伺服器
solve 动词	/sɒlv/	解決 /解决
expand 动词	/ɪkˈspænd/	擴展 /扩展, 擴張 /扩张
donation 名词	/doʊˈneɪʃən/	捐贈 /捐赠
printer 名词	/ˈpɹɪntɚ/	印刷者
unpaid 形容词	/ʌnˈpeɪd/	未付款的
collaborate 动词	/kəˈlæb.ə.ɹeɪt/	合作, 協作 /协作
compete 动词	/kəmˈpiːt/	競爭 /竞争, 高下
enterprise 名词	/ˈɛntəˌpɹaɪz/	企業 /企业
initiative 名词	/ɪˈnɪʃ.ə.tɪv/	主動權 /主动权
database 名词	/ˈdeɪtəˌbeɪs/	數據庫 /数据库

视频中出现的短语动词

单词	释义
take over 动词	接管, 接手
blow up 动词	炸掉, 爆破
end up 动词	到达
figure out 动词	弄清楚
give back 动词	還 /还, 交還 /交还
go down 动词	下降, 下去
go up 动词	上昇 /上升, 上去

视频中的语法

说话人最常用的结构，并附上视频中的原话：

结构	视频中的用法
现在完成时 have/has + 过去分词 — 过去发生但与现在仍有关联的事	hasn't always been · have been added · has expanded
被动语态 be + 过去分词 — 强调发生了什么，而不是谁做的	is actually developed · is written · was only developed
定语从句 who / which + 从句 — 补充说明人或事物	people who were · people who are

需要注意的发音

说话人用了 20 次缩略和弱读形式，例如 they're, we're, can't。请按听到的简短形式来说。

“th” 音: thereby /ðɛɹˈbaɪ/, ethos /ˈiθɑs/
“sh” 和 “zh” 音: donation /doʊˈneɪʃən/, initiative /ɪˈnɪʃ.ə.tɪv/, subscription /səbˈskɹɪpʃən/, essentially /ɪˈsɛnʃəli/, luxury /ˈlʌk.ʃə.ɹi/
长单词——注意重音位置: developer /dɪˈvɛləpɚ/, proprietary /pɹəˈpɹaɪ.ə.tə.ɹi/, collaborate /kəˈlæb.ə.ɹeɪt/, incredibly /ɪŋˈkɹɛdɪbli/, initiative /ɪˈnɪʃ.ə.tɪv/

中文母语者容易读错的音：

/v/ — 不要读成 /w/，上齿轻触下唇: developer /dɪˈvɛləpɚ/, volunteer /ˌvɑlənˈtɪɹ/, server /ˈsɝvɚ/, solve /sɒlv/, initiative /ɪˈnɪʃ.ə.tɪv/
词尾辅音 — 要读清楚，后面不要加元音: contribute /kənˈtɹɪb.jut/, solve /sɒlv/, expand /ɪkˈspænd/, unpaid /ʌnˈpeɪd/, collaborate /kəˈlæb.ə.ɹeɪt/
/r/ 和 /l/ 的区别: rely /ɹɪˈlaɪ/, volunteer /ˌvɑlənˈtɪɹ/, collaborate /kəˈlæb.ə.ɹeɪt/, incredibly /ɪŋˈkɹɛdɪbli/, collaborative /kəˈlæb.ə.ɹə.tɪv/

如何用这段视频练习

先完整听一遍视频，不要开口，记下不认识的单词。
先用 0.75 倍速逐句跟读，熟练之后再回到正常速度。
录下自己的声音并与原声对比，特别注意 contribute, rely, volunteer 这类单词。

什么是跟读法？

跟读法 (Shadowing) 是一种有科学依据的语言学习技巧，最初开发用于专业口译员的培训，并由多语言者Alexander Arguelles博士普及。这个方法简单而强大：您在听英语母语原声的同时立即大声重复——就像是一个延迟1-2秒紧跟说话者的影子。与被动听力或语法练习不同，跟读法强迫您的大脑和口腔肌肉同时处理并模仿真实的讲话模式。研究表明它能显着提高发音准确性，语调，节奏，连读，听力理解和口语流利度——使其成为雅思口语备考和真实英语交流最有效的方法之一。

影子跟读法: 阅读完整分步指南 →

跟读练习: The Rise Of Open-Source Software - 通过视频学习英语口语

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