GWD 13-41

dreambirds

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

(E) unforeseeable weather conditions, and pilot errors often cause much larger deposits of spray than they had

(B) 和 (D)的区别在于cannot be foreseen和are not foreseeable.请问大家，这两个用法有什么区别。是不是able形式的adj都不能用在否定？我不敢肯定，因为我好像记得有个句子是说：the house is not afforable.

dreambirds

没有人会吗？自己顶！

hawkinsxie

我选D.

be able to be done，必错！

frostone

I would choose....B I think.

"The water cannot be drunken"
and
"The water is not drinkable"
are subtly different.
There could be any reason why the water cannot be drunken(maybe you, as the drinker, have a toothache etc.) - the first sentence doesn't reflect upon a property of water - it reflects on your inability to drink it
The second one however means that there's something wrong with the water itself, because of which it is undrinkable.
Similar is the case with 'foreseen' and 'foreseeable'

That's how I understand it.

ProfCPA

以下是引用frostone在2006-6-9 4:08:00的发言：

I would choose....B I think.

"The water cannot be drunken"
and
"The water is not drinkable"
are subtly different.
There could be any reason why the water cannot be drunken(maybe you, as the drinker, have a toothache etc.) - the first sentence doesn't reflect upon a property of water - it reflects on your inability to drink it
The second one however means that there's something wrong with the water itself, because of which it is undrinkable.
Similar is the case with 'foreseen' and 'foreseeable'

That's how I understand it.

Agree.

p.s: drunken ==> drunk? 

dreambirds

恩,同意,说的有道理!支持!

singledream

选B。

这有平行的暗示，The spraying ...can be done, but, weather conditions that can not be done...