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Reading 13 The Web Way to Learn a Language The young woman seated next to us at the restaurant had an exotic air; her looks and style, we thought, made it likely that she was not American born. But then she spoke in perfect American English, even ending her sentences in a way many young Californians do. As it turns out, however, she wasn ’ t from these parts after all; she was born in Iran and spoke only Persian until her arrival here two years ago. How, we wondered, had she learned English so well? “ I used Rosetta Stone, ” she said. The yellow box sold at shops is an example of PC-based language learning (rosettastone.com), but it certainly isn ’ t the only one. With the growth of broadband networks, companies have introduced a wide range of Internet-based language learning products, both free and fee-based, that allow students to interact in real time with teachers in other countries, gain access to their lesson plans wherever they are in the world, and communicate with virtual pen pals. Learning a language sometimes seems as difficult as dieting. The solution is to figure out how to stay interested after the novelty wears off. Online language programs have introduced crossword puzzles, interactive videos and other games to reward users for making progress. How do you choose which program to use? “ Sites with human contact work best, ” a language professor in Australia said. “ This shows the advantage of humans compared to computers. ” One of RosettaStone ’ s main competitors, Tell Me More (tellmemore.com) believes it has an advantage because its software not only teaches words and phrases, but includes videos showing students how to shape their mouths to create difficult sounds. The British Broadcasting Corporation (bbc.com/languages) offers varying levels of instruction for 36 languages, with features including audio and video playback and translation. Besides, simpler version of these programs may be used on smartphones and other digital devices. All these represent new trends in the web way of learning languages. Make use one or more of these new programs and you will learn languages more effectively.
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【单选题】多数载流子的扩散运动,N区的多子是()
A.
自由电子和空穴
B.
自由电子
C.
空穴
【多选题】关于“载流子的扩散运动”,以下说法正确的是:()
A.
载流子的无规则热运动
B.
不论是平衡载流子还是非平衡载流子,只要存在浓度梯度,都会产生扩散运动
C.
载流子在电场作用下的定向运动
D.
载流子在浓度梯度作用下的定向运动
【单选题】的叶和大、小孢子叶的着生方式均为对生,这是进化特征。
A.
油杉
B.
水杉
C.
杉木
D.
落羽杉
【简答题】Sally was a very kind lady and she devoted her whole life to (help) ______ the poor.
【简答题】什么是载流子的扩散运动?
【简答题】什么是载流子的扩散运动、漂移运动?他们的大小主要与什么有关?
【单选题】在 CPU 中配置高速缓冲存储器( Cache )是为了解决( )。
A.
内存与辅助存储器之间速度不匹配的问题
B.
内存与硬盘之间速度不匹配的问题
C.
CPU 与内存储器之间速度不匹配的问题
D.
主机与外设之间速度不匹配的问题
【简答题】如图为世界某区域的交通状况图。读图回答问题。 小题1:从图中的铁路线分布,可以推断其路线选择的主要经济功能为 A.内陆资源的出口 B.促使人口向内陆迁移 C.开发内陆 D.重要自然资源的进口运输 小题2:从图中各国的铁路分布看,显示其发展过程深受下列哪个因素的影响 A.人口的分布 B.矿产的分布 C.殖民的背景 D.地势的高低 小题3:关于图中A河流的叙述正确的是 A.上中游径流季节变化小 B.河...
【单选题】What does your mother look like?
A.
She’s kind.
B.
She likes noodles very much.
C.
She’s very tall
D.
She is beautiful.
【单选题】在以下对机油描述选项当中,最正确的选项是?
A.
具有清洗、密封作用
B.
具有润滑、冷却作用
C.
具有防腐、降噪作用
D.
以上的都是
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