求NN分析两道关于for doing 和 to do的GWD语法题。。。很tricky啊！

jiao1858

GWD-18-Q19
New genetic evidence—together with recent studies of elephants’ skeletons, tusks, and other anatomical features—provide compelling support for classifying Africa’s forest elephants and its savanna elephants as separate species.


A.provide compelling support for classifying

B.provide compelling support for the classification of

C.provides compelling support to the classification of

D.provides compelling support for classifying

E.provides compelling support to classify

TN16 -20. GWD25-Q20

Most states impose limitations on the authority of the legislature to borrow money, with their objectives being to protect taxpayers and the credit of the state government.

A.to borrow money, with their objectives being to protect

B.to borrow money, the objectives of which are the protecting of

C.to borrow moneylimitations intended to protect

D.for borrowing money, of which the objective is protecting

E.for borrowing money, limitations with the intent of protecting

求对比分析！！！谢谢

jiao1858

jiao1858

有谁能解释下为什么第一题的答案是for doing,第二题的答案是to do吗？对这两个的用法很模糊啊。。。

wang1502

longman里解释support 没有 support to do  但是有 support for

for 是不是 意思说  对....的支持

to  意思是  要去做什么.....  表示目的??

等NN

s2206001

第一题，要求主语用单数，排除AB。
C，to the classification of是错误表达。
E，to classify表示动作的目的，用在这里并不合理。
为什么说C是错误表达呢，因为support后面接sb/sth to do是合理的，但是这里to作为介词，往往用for classifying来修饰证据。

第二题， authority 往往接to do表示干某事的权力。所以优先考虑ABC。
B，the objectives of which定语从句优先修饰money，不合理。
AC都是独立主格结构。with their objectives being to protect一来感觉很繁琐，而来their的指代有争议。

jiao1858

谢谢！！！明白你的意思了。。。其实看着答案还是能明白。。但是做题的时候很容易选错

jiao1858

哎。。我也不太透彻。。。还是要结合逻辑意思来理解吧。。。

s2206001

没关系，多问问就好了，谁都是这样过来的。