马上就考试了！！！急求！！！

fannybeibei

Often major economic shifts are so gradual as to be indistinguishable at first from ordinary
fluctuations in the financial markets.
A. so gradual as to be indistinguishable
C. so gradual that they are unable to be distinguished

A


The spraying of pesticides can be carefully planned, but accidents, weather conditions that could not be foreseen, and pilot errors often cause much larger deposits of spray than they had anticipated.
A.      weather conditions that could not be foreseen, and pilot errors often cause much larger deposits of spray than they had
B.     weather conditions that cannot be foreseen and pilot errors often cause much larger deposits of spray than
C.      unforeseeable weather conditions, and pilot errors are the cause of much larger deposits of spray than they had
D.      weather conditions that are not foreseeable, and pilot errors often cause much larger deposits of spray than

B

我的问题：查了网上，前一题解释economy是不能够说that they are unable to be distinguished的，要说be indistinguishable
后题解释weather是不能说 are not foreseeable，要说 cannot be foreseen 。。。

这两个的解释是反的 啊。。。有什么道理么。。。太诡异了啊。。。

或者教教我第一题应该怎么排除C啊。。。。。。。。

zty198747

Often major economic shifts are so gradual as to be indistinguishable at first from ordinary
fluctuations in the financial markets.
A. so gradual as to be indistinguishable
C. so gradual that they are unable to be distinguished

这一题中的C选项be unable to be done 错误，能力天生主动，不能用被动形式，所有的unable/able to be done 和be capable to be done 等表示被动的形式均错，不能解释为“有能力被怎么样”。


The spraying of pesticides can be carefully planned, but accidents, weather conditions that could not be foreseen, and pilot errors often cause much larger deposits of spray than they had anticipated.
A.      weather conditions that could not be foreseen, and pilot errors often cause much larger deposits of spray than they had
B.     weather conditions that cannot be foreseen and pilot errors often cause much larger deposits of spray than
C.      unforeseeable weather conditions, and pilot errors are the cause of much larger deposits of spray than they had
D.      weather conditions that are not foreseeable, and pilot errors often cause much larger deposits of spray than

这道题我觉得could/can应该不能随便改成be 动词吧，而且D选项中的that be 结构不简洁，应该删掉

zty198747

另外，can 和be able to do 是有区别的.can 可以解释为“能够”，也可以解释为“可以”，但是be able to do 只有“能做某事”的意思。

一点拙见，希望能帮助到你。祝考试顺利！！

fannybeibei

thanks!!!