()theories approximate the truth is the day-to-day business of science.A.Determinting how closelyB.How closely to determineC.How one determines closeD.One is close to determining求A为什么对,BCD为什么错详细解析.为什么说这里的HOW引导的是感叹句?如果作为提问程度的特殊疑问句讲呢?

问题描述:

()theories approximate the truth is the day-to-day business of science.
A.Determinting how closely
B.How closely to determine
C.How one determines close
D.One is close to determining
求A为什么对,BCD为什么错详细解析.
为什么说这里的HOW引导的是感叹句?如果作为提问程度的特殊疑问句讲呢?

B

主语是deternining how closely theories approximate the truth
主语部分又是个宾语从句,而宾语从句部分又是个感叹句“how closely theories approximate the truth ”,表示“决定理论和现实有多接近”

选A没有错.
How在这里所引导的句子即不可看成"感叹句",也不可看成"特殊疑问句",而是引导"宾语从句"
I.如果引导"特殊疑问句",那语顺如下.
How closely "do" theories approximate the truth (助动词提前构成问句)
全句译:请问这些理论跟真相有多么接近?
这样只能独立成句,而不能充当动名词"determining"的宾语
II.如果把其看成是感叹句,那语顺如下:
How closely theories approximate the truth!
全句译:这些理论跟真相是多么的接近啊!
虽然把其看成是感叹句与how引导的宾语从句语顺一样,但句意是完全变了.
III.
此句主语是动名词短语做主语,动名词determining的宾语由how引导的宾语从句来充当.主语 is the day-to-day business of science .
全句译:判断理论跟事实多么接近是日常的科学工作
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