一些语法题，共勉！欢迎讨论！(to be continued)

lilya

有答案，但是不是很理解，欢迎讨论。（FROM LZM BOOK）
4．Personal trains and fitness coaches are to the narcissistic 1980’s just like a private fencing master and dancing teacher was to an earlier time.
(A)        just like a private fencing master and dancing teacher was
(B)        as have been a private fencing master and dancing teacher.
(C)        What private fencing masters and dancing teachers were
(D)        What private fencing masters and dancing teachers are
(E)        Just the same as private fencing masters and dancing terachers had been



5．The auto industry has experienced one of its most significant trends in the last 50 years,which is the migratrion of motorists from passenger cars to minivans,sport utility vehicles,and pickups.
(A)        The auto industry has experienced one of its most significant trends in the past 50 ears,which is
(B)        Of the trends the auto industry experiences in the past 50 years has been one of the most significant,
(C)        In the past 50 years,one of the most significant trends that the auto industry has been experiencing has been
(D)        One of the most significant trends that the auto industry has experienced in the last 50 years is
(E)        In the last 50 years,the auto industry experienced one of the most significant trends that it has had,that of



6．Once positioned in space,the Hubble Space Telescope will capture light,from sources twenty times fainter compared to those that can be detected by ground based instruments.
(A)        compared to those that ca be detected
(B)        compared to those they can detect
(C)        than that can be detected
(D)        than those that can be detected
(E)        than those detecting

Louisa_xy

4. C   私人健身教练对于80年代就如同剑术教练和舞蹈老师对于更早的时间（80s以前），大致是说80年代私人健身教练比较少见，就如同在80年代以前剑术教练和舞蹈老师比较少见。
这是what 句型的用法，LZM书上讲得比较明白，你记住就行了

5.D
A)which 虽然指代one，但是离得太远了，意思表达得不如D清晰，一目了然。其他的明显错。

6. D  比较级里than指出比较对象

Mush

6 的关键在于faiter修饰的是light还是sources.个人认为faiter修饰的是light。所以我选c.可是总觉得怪怪的。

Louisa_xy

Mush, 我认为fainter修饰sources,light是sources发出的，sources更暗。
c里的 that 指代什么？如果指light,是不是应该再多一个that做关系代词？

Mush

茅塞顿开。thank you!
举双手双脚赞同。

lilya

关于6题，请教Louisa_xy：我觉得that应该是指代light，the Hubble Space Telescope will capture 的是light，所以ground based instruments也应该detect 的是light，前面的light和后面的sources不可比呀？
that代light，省掉关系词，可以成立吗？LZM的答案是D,但我觉得不太合理。

卧室春竹

我觉得

因为 倍数词 紧跟着 SOURCES  

所以应该选D..

Louisa_xy

6．Once positioned in space,the Hubble Space Telescope will capture light,from sources twenty times fainter compared to those that can be detected by ground based instruments.
(A) compared to those that ca be detected
(B) compared to those they can detect
(C) than that can be detected
(D) than those that can be detected
(E) than those detecting

我认为这句话的意思是：Hubble Space Telescope 一旦被固定在太空中，就能够从比地面望远镜探测到的sources黑暗20倍的sources里捕捉到light（比较啰嗦，不知道你能否明白我的意思）
“the Hubble Space Telescope will capture 的是light”,light是sources发出的，这些sources比地面望远镜探测到的sources暗20倍。正因为是sources和sources的明暗比较，才不会出现“前面的light和后面的sources不可比呀？”
“that代light，省掉关系词，可以成立吗？”我认为不能成立。
在口语里有省略关系代词的情况，但GMAT考的是standard written English,关系代词不可省略。