请分析下这句英语的语法结构 请分析下这句英语的语法结构？
\u8bf7\u5206\u6790\u4e00\u4e0b\u8fd9\u53e5\u82f1\u8bed\u7684\u8bed\u6cd5\u7ed3\u6784Even childless Chinese also see the attractions of a \u201cplan b\u201d should the political or economic climate in China deteriorate.\u5373\u4f7f\u6ca1\u6709\u5b69\u5b50\u7684\u4e2d\u56fd\u4eba\u4e5f\u770b\u5230\u4e86\u201cb\u8ba1\u5212\u201d\u7684\u5438\u5f15\u529b\uff0c\u5982\u679c\u4e2d\u56fd\u7684\u653f\u6cbb\u6216\u7ecf\u6d4e\u6c14\u5019\u6076\u5316\u7684\u8bdd\u3002
\u8fd9\u662f\u53e5\u5b50\u542b\u6709\u7701\u7565\u4e86if\u865a\u62df\u8bed\u6c14\u7684\u72b6\u8bed\u4ece\u53e5should the political or economic climate in China deteriorate\uff0c\u6211\u4eec\u90fd\u77e5\u9053\uff0c if\u5f15\u5bfc\u7684\u865a\u62df\u53e5\u5982\u679c\u53e5\u4e2d\u542b\u6709should\u65f6\uff0c\u53ef\u4ee5\u5c06if\u7701\u6389\uff0c\u800c\u5012\u88c5\u3002\u771f\u4e2a\u53e5\u5b50\u53ef\u4ee5\u8fd9\u6837\u6062\u590d\u539f\u72b6\uff1aEven childless Chinese also see the attractions of a \u201cplan b\u201d if the political or economic climate in China should deteriorate.
\u8fd9\u56de\u660e\u767d\u4e86\u5427\uff1f
\u8fd9\u91cc\u4e0d\u662f\u5012\u88c5\uff0c\u800c\u662f\u4e00\u4e2ait is\u2026that\u5f3a\u8c03\u53e5\u578b\u3002\u539f\u53e5\u4e3a\uff1aMany of the words used in science have come from the Greek language(sometimes through Latin and French),\u662f\u5bf9from\u2026\u77ed\u8bed\u8fdb\u884c\u5f3a\u8c03\u3002
Researchers 是主语say是谓语 后面是省略that的宾语从句
Stonehenge's ancient "architects"是宾从中的主语
placed是宾从中的谓语
importance是宾从中的宾语 后面是介词短语 作地点状语
在这个介词短语中
【on是介词 后面是宾语从句 作介词on的宾语
在这个宾语从句中 what是连接代词引导宾从 并在宾从中作宾语 】
people是宾从中的主语 could see是宾从中的谓语
from northeast of the monument是宾从中的状语.
其中place importance on sth 是在某方面 重要 或起重要作用 的 意思
what从句 这里就是起名词作用 作介词宾语 相当于sth.
what不能引导定语从句
也不能 当先行词
如果 是定从的话 应该是 on all that people could see...
Researchers say 这个是主句的主语和谓语，后面都是宾语从句
Stonehenge's ancient "architects" 宾语从句的主语
placed 谓语
importance 宾语
on 是介词，what 引导on 的宾语从句，what在这里相当于 the thing that，既包括先行词 the thing，又包括连接词 that
people 宾语从句的主语
could see 谓语
from northeast of the monument 宾语从句的状语
on 的出处：place importance on sth
what 引导on后面的宾语从句。同时
what做的 是 see 的 宾语。
不是定语从句。
首先，第一个宾语从句是Stonehenge's ancient "architects" placed importance on what people could see from northeast of the monument，是动词say的宾语。
第二个宾语从句是第一个从句中的what people could see from northeast of the monument，是介词on的宾语，是用what引导的名词性从句。
定语从句的话要有先行词，你不能用what做先行词，通常是一个名词作先行词。所以不存在省略that的问题，因为本来就没有that.
你好！这的确是宾语从句，所以what从句直接看成sth.有短语：place importance on sth.所以出现了on what但这并非什么特别搭配。
what是不能作为定语从句的先行词的，通常用的是one
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绛旓細鍒嗘瀽杩欏彞鑻辫鐨勮娉?绛旓細鍙ュ瓙鎴愬垎鍒嗘瀽锛氳繖鏄竴涓己璋冨彞锛欼t is +琚己璋冪殑鍙ュ瓙鎴愬垎锛堣繖閲屾槸涓昏锛+that +鍓╀綑鐨勫彞瀛愶紙杩欓噷鏄皳璇級涓嶅己璋冪殑鍘熷彞鏄細The desire for solitude or the chance of making an unexpected discovery lures men down to the depths of the earth.鍏朵腑锛氫富璇=The desire ...
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