请问一下这里提取句意不应该是a rise导致more expensive吗，句意不应该是rates 导致more expensive吧，参考BC-21-610那题：也是说an increase导致create problems，而不是usage导致的；

Ron：in the construction "it is (adjective) for XXXX to (verb)", the adjective describes what XXXX experience(s) in trying to (verb).
e.g.，This book is hard for me to read. (I experience difficulty in reading this book.) so, choice E is saying that the appliances themselves have to spend a lot of money "to be bought on credit". well, that doesn't make any sense.
https://www.manhattanprep.com/gmat/forums/noting-that-the-federal-reserve-had-raised-t23862-15.html

in the construction "it is (adjective) for XXXX to (verb)", the adjective describes what XXXX experience(s) in trying to (verb).

e.g.,
This book is hard for me to read.
(I experience difficulty in reading this book.)

It is difficult for Liz to talk to her ex-husband.
(liz has trouble talking to her ex. we don't know whether the converse is true.)

so, choice E is saying that the appliances themselves have to spend a lot of money "to be bought on credit". well, that doesn't make any sense.

also，even if your knowledge of these constructions is nil, you should still be able to kill E because it's so terribly wordy and clunky, as compared to the other choices.
(no, wordiness is not an actual error... but the correct answers are NEVER more wordy / less efficient than the incorrect answers. thus, you can still use differences in wordiness as viable criteria for elimination.)

注意：
rising interest rates，rising是定语修饰rates的，所以主语是rates，动词需要用复数，因此A错误
同样因为主谓不一致排除的还有C、D
E 指代混乱，排除
B correct

“Political situations have caused an increase in gas prices ” correct
“Political situations have caused increasing gas prices ” incorrect

You can't memorize this kind of thing as a structure, because structure isn't the issue. The issue is what the sentence means.

In the pair above, the incorrect example is wrong because political situations don't "cause gas prices"; that's nonsense. (Gas prices are not an event precipitated by political events.) In this instance, "increasing" is an adjective.

In the current sentence, the meaning is altogether different.
We're talking about the action of "buying on credit".

In addition, "buying" is the best noun available, because there's no dedicated noun form available (e.g., there's no such thing as, say, "buyage"). By contrast, the noun "increase" is available.

You can use "it is (adjective) for XXXX to (verb)" construction without a subject, but only if the statement is universally true -- i.e., for everyone who might find him-/herself in the situation.
E.g., when interest rates go up, it becomes more expensive for absolutely anyone to buy on credit, because ... well, because interest rates went up.

In a sentence describing a consequence that's particular to a certain person/group, you have to say who that is. Here, you're talking about consequences that pertain to a certain executive, so the sentence must be specific.

If the "to ___" phrase is long enough, this construction will become preferable.
For instance, in this sentence, change "buy(ing) on credit" to "buy(ing) expensive items on credit or borrow(ing) substantial sums of money".
With a phrase that long, choice B, while still technically correct, will become completely unreadable. With its agreement problem fixed, choice C will still work well.

in the construction "it is (adjective) for XXXX to (verb)", the adjective describes what XXXX experience(s) in trying to (verb).

e.g.,
This book is hard for me to read.
(I experience difficulty in reading this book.)

It is difficult for Liz to talk to her ex-husband.
(liz has trouble talking to her ex. we don't know whether the converse is true.)

so, choice E is saying that the appliances themselves have to spend a lot of money "to be bought on credit". well, that doesn't make any sense.

also，even if your knowledge of these constructions is nil, you should still be able to kill E because it's so terribly wordy and clunky, as compared to the other choices.
(no, wordiness is not an actual error... but the correct answers are NEVER more wordy / less efficient than the incorrect answers. thus, you can still use differences in wordiness as viable criteria for elimination.)

makes it more expensive for them代词指代混乱
且E选项 Ron：in the construction "it is (adjective) for XXXX to (verb)", the adjective describes what XXXX experience(s) in trying to (verb).
e.g.，This book is hard for me to read. (I experience difficulty in reading this book.) so, choice E is saying that the appliances themselves have to spend a lot of money "to be bought on credit". well, that doesn't make any sense.

其主语为rising interest rates。请注意，它不是一个ing短语，而是核心词为rates的名词，rising是定语（如果想构成动名词短语，至少要用raising，这才是一个及物动词）

1.主谓一致，注意rising interest 只是一个修饰词，真正的主语是rates，因此A错，CD也错。
2.指代错误，原文已经有they指代人,them指代物，这是错的，AE错
3.简洁，it放在这做主语代词不如直接用doing...ACE不好
4.简洁，E的to be bought用被动表达不简洁。E不好

rising interest rates 1.核心词为rates rising为现在分词作定语 2.整体为一个动名词（错误，因为rise是不及物动词，后面不能直接跟名词） 所以主谓一致上使用make
2. to do 与 ing or 从句：
a）做宾语，如果谓语对其控制力强，用 to do 如果控制力弱，用 ing or 从句
b） 定语or 状语，主句的发生是否对这件事的发生有直接的影响
c) 主语和表语， 看说话者对这件事的控制力
以本句为例，rising interest rates MAKE buying XXXX on credit more expensive / make it more expensive to buy xxx 比较 to buy xxx 和 buying xxx 利率升高不能直接影响我用贷款买。

rising raising

可以像我想的这样理解吗？
就是A，C和D的it指代有问题，然后再从B和E中选，E主谓不一致。

A中make约束为什么是“以信贷购买”而不是“以信贷购买更贵”啊？例句中Scoring high in GMAT makes me (to) feel happy. 成绩高约束的也不是me而是me feel happy啊

1. 主谓一致！其主语为rising interest rates。请注意，它不是一个ing短语，而是核心词为rates的名词，rising是定语（如果想构成动名词短语，至少要用raising，这才是一个及物动词）。显然地，rates是复数名词，和其谓语动词makes单复数不一致。
2. 不定式短语to buy them on credit需改为ing短语buying them on credit，这点考查了不定式和ing的区别。用之于本题，“以信贷方式购买”这一事件是make的宾语。整句的意思为：
上升的利率让以信贷方式购买东西变得更贵。
此时make对于“以信贷方式购买”的约束力其实较弱，这是因为，利率的上升并不能控制或约束“以信贷方式购买东西”这一事件的发生与否，而只是让这件事变得更贵，成本变得更高。因此，本题中make的宾语应用ing的形式。
注意区别于：
Scoring high in GMAT makes me (to) feel happy.
例句中之所以用不定式短语to feel happy的原因是此时make的约束力较强，即，我是否感到开心被“GMAT分数考的高”所控制。在绝大多数语境下， make的约束力均较强。

主谓一致

"因此，当我们需要鉴别一道考题究竟应该选ing还是选不定式时，只需鉴别在它们的主句开始发生的时候，这件事是否已经发生了即可。若已经发生，则用动名词形式；若尚未发生，则用不定式的形式。"
stop smoking, 停止吸烟
stop to smoke: 停下来，去吸烟

错选E，“ so, choice E is saying that the appliances themselves have to spend a lot of money "to be bought on credit". ---non sense!!!

不定式表示的是一种“主观性”，即，表达一种状态的转换（start-stop）。
ing表示的是一种“客观性”，即，表达一种状态的稳定（process）。

A选项：整体划线部分是原因状语从句，其主语为rising interest rates。请注意，它不是一个ing短语，而是核心词为rates的名词，rising是定语（如果想构成动名词短语，至少要用raising，这才是一个及物动词）。显然地，rates是复数名词，和其谓语动词makes单复数不一致。
此时make对于“以信贷方式购买”的约束力其实较弱，这是因为，利率的上升并不能控制或约束“以信贷方式购买东西”这一事件的发生与否，而只是让这件事变得更贵，成本变得更高。因此，本题中make的宾语应用ing的形式。