请求英语高手帮我分析分析下面几句的语法点!1.High-technology marvels keep going awry lately—in cyberspace,where hackers have shown they can crash virtually any Web site any time,in real space,where the nation’s $60 billion missi

请求英语高手帮我分析分析下面几句的语法点!1.High-technology marvels keep going awry lately—in cyberspace,where hackers have shown they can crash virtually any Web site any time,in real space,where the nation’s $60 billion missi
请求英语高手帮我分析分析下面几句的语法点!
1.High-technology marvels keep going awry lately—in cyberspace,where hackers have shown they can crash virtually any Web site any time,in real space,where the nation’s $60 billion missile defense system can’t hit a target,and down on plain old earth,where the most wondrous new bridge anywhere has been vibrating like a guitar string.
2.The bridge designer must build on centuries of accumulated experience about what can go wrong with such structures in a thousand big and little ways,and when he decides to innovate,he can only extrapolate from that experience and calculate and hope.
3.“We have searched and consulted worldwide on this,and apart from one possible case in Japan,of a bridge that joined a football stadium to a railway station,this appears to be completely new.”
4.Why don’t people know how to build a bridge by now,even if it is a novel “blade of light” design,with suspension cables strung unconventionally alongside the walkway instead of overhead to make it look weightless?

请求英语高手帮我分析分析下面几句的语法点!1.High-technology marvels keep going awry lately—in cyberspace,where hackers have shown they can crash virtually any Web site any time,in real space,where the nation’s $60 billion missi
1 三个where引导三个定语从句
2 whart 和when引导宾语从句
3 两个简单句用and连接构成一个复合句,第二个简单句中apart from引导介词短语做状语
4 how引导宾语从句,even if 引导让步状语从句
这些句子其实都很简单,只要挑出来了主干,其他的都是杂七杂八的东西.语法点大概就那几个,如果再细当然还能写个十来页,但是相信那几个就够你用了,希望能帮到你

看来，我做这道题吧。
1. High-technology marvels keep going awry lately—in cyberspace, where hackers have shown they can crash virtually any Web site any time, in real space, where the nation’s $60 billion ...

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看来，我做这道题吧。
1. High-technology marvels keep going awry lately—in cyberspace, where hackers have shown they can crash virtually any Web site any time, in real space, where the nation’s $60 billion missile defense system can’t hit a target, and down on plain old earth, where the most wondrous new bridge anywhere has been vibrating like a guitar string.
整个句子为主从复合句，主句是"High-technology marvels keep going awry lately"，破折号后面的"in cyberspace"首先引领出第一个范围状语，然后，用第一个"where"，对"in cyberspace"做了补充说明；"in real space"引领出第二个范围状语，由第二个"where"对"in real space"做了补充说明；"and down on plain old earth"引领出第三个范围状语，由第三个"where"对"and down on plain old earth"做了补充说明。这三个"where"引出的从句应当考虑是对各自前面的介词短语的同位语。
2. The bridge designer must build on centuries of accumulated experience about what can go wrong with such structures in a thousand big and little ways, and when he decides to innovate, he can only extrapolate from that experience and calculate and hope.
全句由两个并列句组成加主从复合句构成，介词"about"引出由"what ... "从句做介词宾语的介词短语，修饰"accumulated experience"。第二句由"and"并列词引出，主句为"he can only extrapolate from ..."，从句为"when he decides to innovate"。
3.“We have searched and consulted worldwide on this, and apart from one possible case in Japan, of a bridge that joined a football stadium to a railway station, this appears to be completely new.”
全句由一个简单句加一个主从复合句组成。第一个句子为"We have searched and consulted worldwide on this"，"and"引出并列句，先由"apart from one possible case in Japan"引出状语" ，其次由"of a bridge that joined a football stadium to a railway station"引出范围状语+"that ..."定语从句，然后才是主句"this appears to be completely new"。
4.Why don’t people know how to build a bridge by now, even if it is a novel “blade of light” design, with suspension cables strung unconventionally alongside the walkway instead of overhead to make it look weightless?
全句为主从复合句的特殊疑问句，包含了"even if ..."引出的条件状语从句。介词"with"引出一个带有逻辑主语"suspension cables"+过去分词短语"strung unconventionally alongside the walkway instead of overhead to make it look weightless"的分词独立结构。
这是我对你四句句子的主要语法结构的分析，若有疑问，请追问。

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