求助几道gwd的语法题

jsfjbewi

有几道题真是想破脑袋都想不出啊，求助各位大牛，能不能帮忙指点一下谢谢
T-9-Q24. 987-304

For many people, household labor remains demanding evenif able to afford household appliances their grandparents would find a miracle.

• even if able to afford household appliances their grandparents wouldfind a miracle
• despite being able to afford household appliances theirgrandparents would find a miracle
• even if they can afford household appliances theirgrandparents would have found miraculous
• although they could afford household appliances theirgrandparents would find miraculous
• even ifthey are able to afford household appliances which would have been a miracle totheir grandparents
  
  

这道我选的A，正确答案是C， 请问一下A有什么错吗，C选项为什么是现在完成时呢

As thehoneybee’s stinger is heavily barbed, staying where it is inserted, thisresults in the act of stinging causing the bee to sustain a fatal injury.

• As the honeybee’s stinger is heavily barbed, staying whereit is inserted, this results in the act of stinging causing
• As the heavily barbed stinger of the honeybee stays whereit is inserted, with the result that the act of stinging causes
• honeybee’s stinger, heavily barbed and staying where it isinserted, results in the fact that the act of stinging causes
• the heavily barbed stinger of the honeybee stays where itis inserted, and results in the act of stinging causing
• the honeybee’s stinger is heavily barbed and stays where itis inserted, with the result that the act of stinging causes
  
  

请问这题为什么不选C而选E呢

Critical-thinkinginstruction is predicted on two assumptions: that there are clearly identifiable thinking skills that students can betaught to recognize and apply appropriately, and if recognized and applied,students will become more effective thinkers.D E

• if recognized and applied, students
• if these skills are recognized and applied, that students
• if students recognize and apply them, that they
• that if recognized and applied, students
• that if students recognize and apply these skills, they
  
  

D选项的ed形式是修饰students 的吗

Gil_0_

第一个，even if 后的able to是错误的，be able to是个完整的习语，还有就是最主要的问题，would这边是一个虚拟语气的标志，

第二个是语义的问题，造成结果的原因不是stinger，而是stinger 被 barb并且stay这件事

第三，可以说是吧，其实是一种被动语态的省略用法

jsfjbewi

Gil_0_ 发表于 2015-9-27 21:17
第一个，even if 后的able to是错误的，be able to是个完整的习语，还有就是最主要的问题，would这边是一个 ...

谢谢！！但是为什么最后一题不选D而选E呢，E选项有个they好像指代不清吧

jsfjbewi

36. 17. GWD25-Q17（原CD16-17）
Until recently, the Inuit people led a nomadic existence, sheltering in igloos, the ice-block domes that are peculiar to north-central Canada, and in structures made of stones, bones, driftwood, and skins.

A.Until recently, the Inuit people led a nomadic existence, sheltering
B.During recent times, the Inuit people lead a nomadic existence, sheltering
C.In the times that are recent, the Inuit people led a nomadic existence, sheltered
D.Up until recently, the Inuit people, leading a nomadic existence, have sheltered
E.Until recent times, leading a nomadic existence, the Inuit people were sheltered

以及这个题有没有大神帮忙看一下，A选项until recently后面不是应该接完成时吗

Gil_0_

jsfjbewi 发表于 2015-9-29 10:16
谢谢！！但是为什么最后一题不选D而选E呢，E选项有个they好像指代不清吧

不要把指代作為第一順位的排除原則。指代只要不嚴重違反主謂一致原則都可以睜一隻眼閉一隻眼。

Gil_0_

jsfjbewi 发表于 2015-9-29 10:36
36. 17. GWD25-Q17（原CD16-17）
Until recently, the Inuit people led a nomadic existence, sheltering  ...

不要质疑正确选项，因为我们做的是GMAT考试，而GMAC/ETS是这门考试规则的制定者，我们只能遵循他们的规则。

SC的选项是GMAT提供的最好做题工具，这题时态完全不是考点。时态的运用是很灵活的，必须结合语义来看，因此不存在唯一性的hard rules，其应用的复杂性不是我们NONNATIVE SPEAKER所能深究的。

既然这题中until后不接完成时就表示GMAT认可这种做法，但同时这也不意味着until后接完成时就是错的。GMAT的SC在于学习正确选项之所以正确的地方，学习错误选项之所以错误的地方

Carolinema

我觉得第一题除了要把being补出来以外，如果不用they指代出来be able to的对象是many people的话，会误理解为对象可能是labour而引发歧义~

750狗狗狗

jsfjbewi 发表于 2015-9-29 10:36
36. 17. GWD25-Q17（原CD16-17）
Until recently, the Inuit people led a nomadic existence, sheltering  ...

ron 的解释：

"Up" is redundant, since "until" already carries this meaning.

• The sentence implies that the Inuit are no longer nomads.
If they were still nomads, the sentence wouldn't say "until recently"; it would say "until now" (or some equivalent). Remember that "recently", albeit not too long ago, is still a time in the past.
So, you need the past tense. In that choice, you'd want "sheltered". Not "have sheltered" (which implies "up to the present").

来源：https://www.manhattanprep.com/gmat/forums/a-prep-sc-question-the-inuit-people-t30624.html