Unit 19 1. It was predicted as early as the 1700s that English would one day be the global language. 早在18世纪人们就预言英语有一天会成为全球性语言。
2. In today’s world, being able to speak more than one language, including English, is how you stand out and get ahead. 当今世界，要想取得令人瞩目的成就，就要会讲至少两种语言，特别是英语。
3. Learning English as a foreign language is very difficult in the absence of a native language environment. 学习英语没有语言环境是很难的。
4. Quality input ensures quality output, whether it is speaking or writing.高质量的输入信息才能保证学生高质量的语言输出，不管是说还是写。
5. Experts say that just 15 minutes of extra-curricular study a day can really accelerate foreign language learning. 专家认为每天课后多学15分钟可以加快外语学习速度。
6. Knowing the main stories before reading will guarantee greater comprehension when reading in English. 读前能了解主要新闻内容会确保用英语阅读时更透彻地理解所读新闻。 7. To stay dedicated, you need to keep in mind why you are learning English.为了保持这种热忱，你需要牢记你为什么学习英语。
8. Quite simply, in today’s world, English holds the key to a brighter future and a world of possibilities. 简而言之，在当今世界，英语是一个光明的前途和实现各种可能性的关键。 9. You would know what was going on because you understood the message conveyed by the father’s body language. 你知道发生的事情是因为你明白父亲的身体语言所表达的信息。 10. Body language is a language without words that consists of gestures, facial expressions and body movements that greatly add to---and sometimes even replace—spoken language.身体语言是一种没有字词，由手势、面部表情和身体动作组成的语言，它极大地丰富了---有时甚至取代了---口头语言。
11. Somebody jumping for joy is easy to see while a raised eyebrow conveying doubt is easier to miss.某人高兴地跳跃是容易看到的，而挑起眉毛表示怀疑却容易被人忽略。
12. Learning to be aware of your body language can be a very useful tool. 学会了解你的身体语
言是一个很有用的方法。
13. In foreign countries, it is very easy to purchase something simply by smiling and pointing at what you want. 在外国，要想买东西的话，只要面带微笑并且指着你想要买的东西就可以。
14. Although every culture around the world uses the same gestures and expressions, they use
them in different ways. 虽然世界上的各种文化都用同样的姿势和表情，但他们使用的方法不同。
15. Regardless of these differences, experts agree that across the globe there is one form of body language that receives universal approval—the smile. 尽管有些不同，专家们一致认为有一种身体语言在全世界都得到认可----微笑。
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Unit 19
1. It was p________ as early as the 1700s _______ English would one day be the global language. 2.In today’s world, being able to speak more than one language, including English, is _________ you _________ (突出) and get ahead.
3. L_________ English as a foreign language is very difficult in the a_________ of a native language e____________.
4. Quality input ensures quality output, ________ it is speaking or writing.
5. Experts say that just 15 minutes of extra-curricular study a day can really a__________ foreign language learning.
6. K__________ the main stories before reading will g________ greater comprehension when reading in English.
7. To stay d____________, you need to ________________(牢记) why you are learning English. 8. Quite simply, in today’s world, English __________(掌握关键) to a brighter future and a world of possibilities.
9. You would know what was going on because you understood the message c________ by the father’s body language.
10. Body language is a language without words that _________ gestures, facial expressions and body movements that greatly add to---and sometimes even replace—spoken language. 11. Somebody jumping for joy is easy to see _______a raised eyebrow c___________ doubt is easier to miss.
12. Learning to __________(了解；意识到)your body language can be a very useful tool. 13. In foreign countries, it is very easy to p________ something simply by smiling and
__________(指) what you want.
14. _________ every culture around the world uses the same gestures and expressions, they use
them in different ways.
15. _________ these differences, experts agree that across the globe there is one form of body language that receives universal approval—the smile.
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Unit 20 1. The seminar starts on Friday and the experts will be discussing the endless possibilities of the future. 会议于星期五开始，专家们会讨论未来的无数个可能。
2. The future is now big business and many people will attend the seminar with dreams of starting new enterprises based on the predictions they will hear this weekend.现在未来学是很大的生意，许多人将参加讨论会，他们的梦想是在这个周末听到的预测的基础上开始新的事业。 3. By the middle of the century, computers that are millions of times smarter than us will have been developed. 到本世纪中叶之前，比人类还要聪明几百万倍的计算机将会面世。
4. By the year 2015, the clothing industry will have produced new types of material that will remain stainless no matter what you spill on them. 2015年之前，服装工业将生产出新型的材料，不管你将什么东西洒在上面，都不会留下污点。
5. By the year 2025, no one will die of starvation because there will be food for everyone. 到2025年没有人会死于饥饿，因为每一个人都将会有食物。
6. By the year 2030, development in biochemistry and medical science will have made it theoretically possible for us to live for at least 150 years. 2030年之前，生物化学和医学的发展将能够在理论上使人类至少活到150岁。
7. At nine o’clock on Saturday morning, I will be sitting in the front row and listening to the great Professor Willard talking about the future of my brain. 星期六上午九点钟，我将坐在前排，聆听伟大的威拉德教授关于大脑的未来发展的预言。
8. Although it is impossible to choose the most important discovery, it is possible to single out a few pioneers of the 20th century. 虽然不可能选择最重要的发现，但挑出20世纪的几个先驱者是可能的。
9．He double-checked and saw a blue mould in the dish around which the bacteria had been destroyed. 他仔细检查了一下，发现盘子里有青色的霉斑，其周围的细菌都被消灭了。 10. The navy turned to Eckert, an engineer, and Mauchly, a physicist, to wrestle with the problem. 海军方面向工程师埃克特和物理学家莫克利寻求帮助，请他们解决问题并制造一台能完成工作的机器。
11. It used so much energy that when it was turned on, the lights in the local town went out!它用去这样多的能量，以至于一开机当地镇上所有的 灯都会熄灭。
12. These pioneers of the 20th century were all dedicated to improving the quality of human life on earth. 这些20世纪的先驱者们都致力于提高地球上人类生活的质量。
13. Sometimes breakthrough discoveries that have affected our lives today happened by mistake!有时候，影响我们生活的突破性发现却是由于错误而发生。 14. There is no doubt about it.这一点是毫无疑问的。
15. Without the breakthroughs of these pioneers in science and technology, whether lucky or planned, the world as we know it today would have been a completely different place. 没有这些科技先驱们的发现，不管是幸运还是有计划地，我们今天所熟悉的这个世界将会是完全不同的世界。
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Unit 20 1. The seminar starts on Friday and the experts _______________(discuss) the endless possibilities of the future.
2. The future is now big business and many people will attend the seminar with dreams of starting new enterprises b____________ on the predictions they will hear this weekend.
3. By the middle of the century, computers that are __________(几百万倍) smarter than us will have been developed.
4. By the year 2015, the clothing industry __________ new types of material that will remain stainless ________________you spill on them.
5. By the year 2025, no one will ____________(饿死) because there will be food for everyone. 6. By the year 2030, development in biochemistry and medical science _______ it theoretically possible for us to live for at least 150 years.
7. At nine o’clock on Saturday morning, I _________ (sit)in the front row and listening to the great Professor Willard talking about the future of my brain.
8. Although it is impossible to choose the most important discovery, it is possible to _________ (挑出) a few pioneers of the 20th century.
9．He double-checked and saw a blue mould in the dish _________ which the bacteria __________ (destroy).
10. The navy ____________(向?求助)Eckert, an engineer, and Mauchly, a physicist, to___——________________(解决问题) the problem.
11. It used so much e______ that when it was turned on, the lights in the local town went out!
12. These pioneers of the 20th century were all d_________ to improving the quality of human life on earth.
13. Sometimes breakthrough discoveries that have affected our lives today happened _________!(由于错误)
14. ______________ (毫无疑问) about it.
15. _________ the breakthroughs of these pioneers in science and technology, whether lucky or planned, the world as we know it today _____________(be)a completely different place.
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