有能力帮助别人是一种幸福
The hummingbird was lost in the supermarket, exhausted, starving, and near death as it spiraled towards the ground on helpless wings.
一只蜂鸟在超市里迷路了，它疲惫不堪且饥饿难耐，由于无力挥动双翼，小蜂鸟飞得越来越低，眼看就要奄奄一息。
I snatched her away from the crushing carts, cupped her in my hands, and rushed for the exit.
我一把将它抓住，让它免于遭受被推车碾压的命运。我小心翼翼地托着蜂鸟，向出口跑去，感到它小而柔软的身体躺在我的掌心。
She was tiny and soft against my palms. I ran out towards the flowers. She was too weak to perch; I cupped her in my palm and held her up to each flower to drink.
我跑向花丛，然而这只蜂鸟太虚弱了，站都站不起来。于是我举着它，让它挨个吸食每朵花的花蜜。
Slowly, she perked up and her claws tightened on my finger. Then she spread her wings and flew on her own: a tiny, sweet miracle.
渐渐地蜂鸟有了精神，它的爪子抓紧了我的手指，之后它挥动着翅膀飞了起来——这小小的，甜蜜的奇迹。
Man and Nature
人与自然
The intimacy between man and Nature began with the birth of man on the earth, and becomes each century more intelligent and far reaching. To Nature, therefore, we turn as to the oldest and mostinfluential teacher of our race; from one point of view once our task master, now our servant; from another point of view, our constant friend, instructor and inspirer. The very intimacy of this relation robs it of a certain mystery and richness which it would have for all minds if it were the reward of the few instead of being the privilege of the many. To the few it is, in every age, full of wonder and beauty; to the many it is a matter of course. The heavens shine for all, but they have a changingsplendor to those only who see in every midnight sky a majesty of creative energy and resource which no repetition of the spectacle can dim. If the stars shone but once in a thousand years, men would gaze, awe struck and worshipful, on a vision which is not less but more wonderful because it shines nightly above the whole earth. In like manner, and for the same reason, we become indifferent to that delicately beautiful or sublimely impressive sky scenery which the clouds form and reform, compose and dissipate, a thousand times on a summer day. The mystery, the terror, and the music of the sea; the secret and subduing charm of the woods, so full of healing for the spent mind or the restless spirit; the majesty of the hills, holding in their recesses the secrets of light and atmosphere; the infinite variety of landscape, never imitative or repetitious, but always appealing to the imagination with some fresh and unsuspected loveliness; - who feels the full power of thesemarvelous resources for the enrichment of life, or takes from them all the health, delight, andenrichment they have to bestow?
从地球上人类出现开始，人与自然之间的密切关系也随之诞 生，而且这种关系每一世纪都比以前变得更为明智而深 远。因此，我们求助于自然，并把自然视为人类的最年长和最有 影响力的老师。从某一种观点来看，自然曾经一度是我们的监 工，现在却变为我们的奴仆。但从另一种观点来看，自然一直是 我们的最忠实的朋友、导师和启发者。这种和谐紧密的关系，如 果仅仅是少数人的特权，而大多数人并不能享有，那便会在人们心目中引发一种神秘和情趣。但是事实上，这种亲密关系是被 天下所有的人共同享有的，这就使得这和谐紧密的关系失去神 秘感和情趣。对于少数人来讲，这种关系在每个时代都充满了奇妙和美好；对于多数人来讲，这种关系只是理所当然的一件 事。天空照耀着每一个人，但是只有在少数人的心目中具有一 种变化多端的壮丽，他们在每一个午夜的`天空都能看到一种蕴 含着创造性的能力的庄严肃穆之美，无论那种景象重复多少次， 都不会使那种美模糊不清。如果星辰一千年才照耀一次大地， 人们将怀着敬畏尊崇的心情凝视那种美景，而那种美景如果夜 夜在全世界的上空出现，不但不会减损，反而更为增加它的奇 妙。同样，基于相同的原因，我们对于夏曰天空的那种由浮云聚 散飘忽所形成的一曰之间千变万化的纤巧秀丽或壮丽动人的景 色，也都漠然置之。海洋的神秘、恐怖和韵律，有助于医疗疲惫 心灵和烦躁精神的森林所具有的奥妙和慑人魂魄的麂力；在其 幽深之处保有光与大气之奥秘的山峦所呈现的庄严肃穆之美； 从不模仿或重复、永远以一种出人意料的新鲜的美丽来冲击人 类想像力的风景变幻无穷——谁能感受到这些奇异景物的全部 力量，或者能从它们那里得到它们所赐予的健康、快乐和丰美呢？
《酸奶》
When you open a container of yogurt, you’ll often see liquid collected on top. Some people mix it back into the yogurt, and others drain it off. What is it, and where does it come from?
打开一盒酸奶，你常常会发现有一层液体浮在表面。有的人把它拌入酸奶中，有的人则将这层液体倒掉。这层液体究竟是什么东西，它又是从哪来的呢？
To solve the mystery of the liquid in yogurt, let’s take a few steps back, to the milk that yogurt is made of. Milk has two different types of proteins. Most of the proteins are casein proteins, and the rest are whey proteins–of curds and whey fame.
为了揭开酸奶中这层液体的神秘面纱，让我们往回追溯，去看看制作酸奶的原料—牛奶。牛奶有两种不同类型的蛋白质。大部分蛋白质是酪蛋白，其余是乳清蛋白，包括凝质和乳清。
If you look at a glass of milk, you can’t tell the casein from the whey. But that changes when special bacteria are added to milk to make yogurt. Yogurt-producing bacteria ferment the sugars in milk and produce an acid. As a result, the mixture is more acidic than before, and this higher acidity solidifies the casein proteins. The whey proteins, on the other hand, don’t solidify, and separate out from the casein as liquid.
单单看一杯牛奶，我们是无法从中分辨出酪蛋白和乳清的。但是往牛奶中加入特殊的细菌来制作酸奶时，情况就不一样了。制作酸奶用的细菌会发酵牛奶中的糖并制 成酸。因此，混合物比之前更酸，更高的酸度使得酪蛋白凝固。而另一方面，乳清蛋白则不会凝固，它会从酪蛋白中以液体的形式分离出来。
Yogurt you buy in the store has a stabilizer, usually fruit pectin, to keep the solid casein and liquid whey mixed together. But some of the whey still separates out from the casein, and that’s what you see when you open the yogurt container.
你在超市买到的酸奶中含有一种稳定剂，通常是果胶，它的作用是让固体的酪蛋白和液体的乳清混合在一起。但是部分乳清仍然从酪蛋白中分离出来，那就是你在打开酸奶包装时所看到的液体。
Whey contains not only proteins but also B vitamins, including riboflavin, niacin, and thiamin, which can’t be found in the solid portion of the yogurt. Because of the nutritional value of whey, your best bet is to mix it back into the rest of the yogurt, then gobble it down！
乳清不仅含有蛋白质还有维生素B，维生素B包括核黄素，烟酸和硫an素，这些物质反倒无法在酸奶的固体部分中获得。因为乳清的营养价值，你的选择是把它和酸奶搅拌在一起，然后一饮而尽！
全球变暖问题
英语听力原文：
Global warming may or not be the great environmental crisis of the 21st century, but—regardless of weather it is or isn't— we won't do much about it. We will argue over it and may even, as a nation, make some fairly solemn-sounding commitments to avoid it. But the more dramatic and meaningful these commitments seem, the less likely they are to be observed.
全球变暖有可能是21世纪巨大的环境危机，也有可能不是，但是无论它是或不是我们对此都无能为力。我们会争论不休，作为一个国家，或许会做出一些听起来相当认真的来避免这一危机。但是这些看起来越是令人印象深刻、越是有意义，就越是不太可能被遵守。
Al Gore calls global warming an “inconvenient truth,” as if merely recognizing it could put in on a path to a solution. But the real truth is that we don't know enough to believe global warming, and — with our major technological breakthroughs — we can't do much about it.
Al Gore 称全球变暖是一个“让人感到麻烦的事实”，似乎只要认识到它的存在就可以把我们带往一条解决问题的途经上去。但是真正的事实是，我们没有掌握足够的知识去缓解全球变暖，并且如果没有重大的技术突破，我们对此也束手无策。
No government will adopt rigid restrictions on economic growth and personal freedom (limits on electricity usage, driving and travel)that might cut back global warming. Still, politicians want to show they're “doing something”。 Consider the Kyoto Protocol. It allowed countries that joined to punish those that didn't. But it hasn't reduced CO? emissions (up about 25% since 1990)， and many signatories didn't adopt tough enough policies to hit their 2008 — 2012 targets.
没有哪个政府会对经济增长和个人自由（限制电力的使用，驾驶和旅游）采取严格的限制令，虽然这样的限制可以缓解全球变暖。即便事实如此，执政者们还是想表明他们在“采取措施”。就拿《京都协议》来说吧，它允许其成员国惩罚非成员国。但是它并没有起到减少二氧化碳的排放量（自从1990年以来上升了25%）的作用，并且，许多签字国并没有采取足够严格的政策来尽力完成他们所制定的2008—2012年度的目标。
The practical conclusion is that if global warming is a potential disaster, the only solution is new technology. Only an aggressive research and development program might find ways of breaking our dependence on fossil fuels or dealing with it.
比较实际的结论是，如果全球变暖是一个潜在的灾难，那么的解决办法就是新技术。只有积极进取的研究开发项目才可能会找到办法打破我们对于化石燃料的依赖，或者找到应对这一难题的办法。
The trouble with the global warming debate is that it has become a moral problem when it's really engineering one. The inconvenient truth is that if we don't solve the engineering problem, we're helpless.
全球变暖这场辩论所存在的问题是，它本是一个技术问题，却都已经变成了一个道德问题。这个被忽视的真相就是，如果不能解决这个技术问题，我们将对此束手无策。
英语单词词汇整理:
1、solemn adj.严肃的，庄重的
eg：His solemn baihuawen.c nlittle face broke into smiles.
他那严肃的小脸绽开了笑容。
短语
solemn promise 庄严 ； 誓言 ； 郑重 ； 庄严的誓言
solemn profession 终身圣愿 ； 隆重终身圣愿
solemn serious 岸然
2、commitment n. ，托付
eg: They made a commitment to peace.
他们要维护和平。
短语：
commitment fee 承担费；费；承约费
loan commitment 贷款；货款；放款；贷款委托书
Service commitment 服务；效劳许诺
Management commitment 管理；管理委员会；管理的
Commitment Document 文件
3、dramatic adj. 引人注目的，戏剧性的
eg: Their arrival was dramatic and exciting.
他们的到来令人激动不已，难以忘怀。
短语：
Dramatic Lyrics 戏剧抒情诗；诗剧抒怀诗
Dramatic Arts 戏剧艺术
Dramatic Writing 编剧；话剧写作
dramatic rights 改编权
4、observe v. 遵守，观察
eg: Everyone should observe the law.
任何人都必须遵纪守法。
短语：
witness observe 目睹 ； 目击
observe silence 默哀
observe things 观察事物 ； 观察东西
observe that 对某人说
5、breakthrough n. 突破
eg: Scientists have made a breakthrough in their treatment of that disease.
科学家在治疗那种疾病方面已有突破。
短语：
breakthrough point 切入点；突破点
breakthrough time 突破时间
technological breakthrough 技术突破
6、aggressive adj. 进取的，攻击性强的
eg: The dogs are trained to be aggressive.
这些狗被训练得具有攻击性。
短语：
aggressive mode 积极模式；主动模式；挑战模式；激进模式
aggressive active 积极主动
aggressive Driving 侵略性驾驶；攻击性驾驶
7、fossil fuel 矿物燃料
eg: Coal is usually referred to as a fossil fuel.
煤通常被称为矿物燃料。
短语：
Fossil-Fuel Resources Utilization in China 中国能源资源消费及其经济性分析
fossil-fuel power station 火力发电厂
fossil-fuel boiler 化石燃料锅炉
佳句采摘：
We will argue over it and may even, as a nation, make some fairly solemn-sounding commitments to avoid it. But the more dramatic and meaningful these commitments seem, the less likely they are to be observed.
我们会争论不休，作为一个国家，或许会做出一些听起来相当认真的来避免这一危机。但是这些看起来越是令人印象深刻、越是有意义，就越是不太可能被遵守。
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