1. If Amazon.com wants to issue special "Amazon dollars" that are worth 1.20 a piece at selected merchants，why wouldn't I start changing my U.S. dollars for Amazon dollars at a furious pace?
结构分析：句子的框架是 If Amazon.com wants to issue special "Amazon dollars" that are worth..., why wouldn't I start...。If 引导条件状语从句，在此从句中又包含了由关系代词 that引导的定语从句， 修饰先行词“Amazon dollars”。主句是由疑问词 why 引导的特殊疑问句。
2. I can spend them anytime, so there's room for me to do a little speculating: Should I hold on to the cash in the hope that this story ignites a flurry of flattering notes, or should I spend quickly in case it bombs?
结构分析：句子的框架是 I can spend them anytime, so there's room for me to do...: Should I hold on to the cash in the hope that...。冒号之后的 Should I hold on to the cash...是一个由 or 连接的并列句，表选择。该并列句是对 there's room for me to do a little speculating 的补充说明，进一步解释思考的内容。that this story ignites a flurry of flattering notes 作 hope 的同位语。
3. And with jillions of alternative currencies out there，it's possible that Greenspan—who controls the economy by controlling dollars, may find his power tools are losing their torque.
结构分析：句子的框架是 with jillions of..., it's possible that Greenspan...，may find his power tools are losing...。句首是 with 引导的介词短语作状语。it's possible that...这个句子中一个从句套着另一个从句。首先，it 是形式主语，真正的主语是 Greenspan—who controls..., may find his power tools are losing...。在这个主语从句中，关系代词 who 引导的非限制性定语从句修饰主语 Greenspan。谓语是 may find。his power tools are losing their torque 是省略 that 的宾语从句，作 find 的宾语。jillions of （美俚），意为“大量的”。

1. The result is that the station seems, at present, to have only one concrete objective: research into how people can live and work safely and efficiently in space.
结构分析：句子的框架是 The result is that the station seems...。该句中包含一个由 that 引导的表语从句：the station seems..., 冒号后面的内容是对 one concrete objective 的解释说明。
2. And even if one accepts that this research is important, can it justify building a space station the size of 14 tennis courts, at a cost which is eventually expected to exceed $100 billion?
结构分析：句子的框架是 And even if..., can it justify building...? even if 引导让步状语从句，在这个从句中又包含一个 that 引导的宾语从句。主句是一个一般疑问句：can it justify (doing something at the cost of...)?关系代词 which 引导定语从句，修饰 cost。one 在此句中是一个泛指人称。
3. It will provide work for the thousands of unemployed defense workers who depended on the Cold War for their jobs, and who make up a substantial proportion of voters in both Russia and the U.S.
结构分析：句子的框架是 It will provide work for...workers who...，and who...。此句的主干是 It will provide work for...，这里有两个由 who 引导的并列定语从句，修饰 workers。