解析为什么感觉总是刚好避开最大考点呢。。。。

D changes the meaning by using although. This is saying that despite the fact that they can afford household appliances the labor is demanding, instead of saying whether or not they can afford the appliances the labor is demanding. Although shows that they definitely can, whereas even if shows that hypothetically can.

IMO, the more substantive route to solve this would be to sift whether ' would find' or 'would have found' is correct. There is no point in saying that the grandparents would find them a miracle in the coming future days. We must attribute their perception with what they would have felt in their on their own contemporaneous times.

Even if - means whether or not and has to do with the conditions that may apply.
1. Even if I had time, I wouldn't watch that programme.
2. Even if Mark told the truth, I wouldn't believe him.

Even though - Even though means despite the fact that and is a more emphatic version of though and although. It is primarily concesive
1. Even though I had time, I didn't watch that programme
2. Even though Mark told the truth, I didn't believe him.

The differences can be appreciated in this sentence
1. I'm going out, even if it rains
2. I'm going out, even though it's going to rain
We do not know whether it will rain or not in (1) so we use even if
In (2) we know that it is going to rain but we are going out anyway

第一次看到说although是转折关系排除的....无语
附上D错误的真正原因：
这个句子是建立在现在的时间语境中。因此，使用“could afford”过去时态是不正确的。同样，动词时态“would find”也不正确。这个动词时态应该是“would have动词”。这是因为这个句子陈述了一个假设的条件。这些器具实际上在祖父母的时代是不存在的。但是按照这句话，如果这些器具在那个时候就已经存在了，那么祖父母们会觉得它们很神奇。通过使用" would动词"时态，这个句子现在暗示，如果祖父母们看到这些设备现在被使用，他们会发现它们是奇迹。

D. The sentence is set up in present context of time. Thus, use of “could afford” – past tense is incorrect. Similarly, the verb tense “would find” is incorrect. This verb tense should be “would have verb”. This is because the sentence states a hypothetical condition. These appliances did not exist in the times of grandparents. But per the sentence if these appliances had existed at that time, then the grandparents would have found them miraculous. By using “would verb” tense, the sentence now implies that if grandparents saw these appliances being used today, they will find them miraculous.

不是很理解为什么C中的can可以和would have 搭配，不是应该改成could才能搭配上吗？

CD
1、时态
2、although表示事实之间的转折，even if表示假设（让步），与后面的推测语气相符

A，if是连词，后面要接完整的句子
B，despite表转折，让步，与句意不符
D，同B
E，引用：定语从句which would have been a miracle to their grandparents的说法有误。通常来说，这个句型的意思是“给某人以某物”，例如：
The apple is a gift to(for) you.
该例句的意思是：这个苹果是给你的礼物。用之于本题：
household appliances would have been a miracle to their grandparents.
该句的意思是：机器是给父母们的一个奇迹。显然地，这在逻辑上是不正确的。正确的说法是，父母发现这些机器是奇迹（是机器本身是奇迹，而不是机器是给父母的奇迹）。

CD
1、时态
2、although表示事实之间的转折，even if表示假设（让步），与后面的推测语气相符

前面even if they can并不需要虚拟，因为是事实。所以不能用could afford。【真实条件句，不能用虚拟】
后半句的意思是“假如这些家电放在以前，祖父母会觉得很神奇”，事实上这些家电放在以前是绝对不会发生的情况，所以用past perfect 。【非真实条件句，要用虚拟】
混合虚拟语气！各用各的，所以这样组合是可以的。

household appliances... 是定语，修饰对象在定语从句中作find的宾语（补全是：find them a miracle，双宾），可以省略that；这句中的逻辑关系是“即使”，不是“转折”
A:even if是连词，身后需要加完整的句子而不是不定式短语。
B:转折词despite有误。未划线部分和划线部分的语意之间应该是“即便是”或者说“即使是”的关系，而despite表示两者是转折关系。
D:although依然表示转折关系，应该把其改为even if。该错误同选项(B)。
E:不管咋看都不对，which前面应该有逗号引导非限定性定从

Between C and D: Would do vs. Would have done
- Would do: shows a possibility for someone to do something — future, which means.
- Would have done is used when we refer to a possibility at a time that has already passed — a sort of past.
Grandparents认为这是奇迹 不是描述未来可能发生的事情 而是回看过去

毕老师，你这个解释不太走心。D选项的错误在于Although，翻译成中文就是: 虽然他们曾经能买得起家电，但是劳动力现在还是维持高需求。应该是一般的陈诉，要么都是讨论过去，要么都是讨论现在。

虚拟语气

1. 虚拟语气：although尽管，表示一种既定事实，而even if即使，表示假设；would have found是表示对过去的假设或虚拟。
2. E 的定语从句是主系表，表示的是appliance的属性； 但C的定语从句是主谓宾补结构，表示的是grandparents给Appliance的属性。
3. be able to 和afford有语义重复

时态 虚拟语气

时态 未划线是现在是 连词 从句也是现在时态 定语由于内容是 对过去的虚拟，用 would have done

would have done 对过去的虚拟

although / despiete / even if 在中文里，尽管、即使没有差别。
* 尽管我不喜欢考试，我也得考试
* 即使我不喜欢考试，我也得考试
我觉得考点应该是虚拟语气的使用。
would 与 would have done

forword：陈思行
although尽管，表示一种既定事实，而even if即使，表示假设；would find -是表示对现在或将来的假设或虚拟；would have found是表示对过去的假设或虚拟。

d的错误应该是时态不对

真正想表达的不是 对于他们是个miracle 而是他们发现是miracle 最后时刻琢磨作者究竟想表达什么！过去的实际上未发生的想象 would have done 没错 翻译为 “本可以”