885 sec4 11

11.   Several studies have found that the coronary patients who exercise most actively have half or less than half the chance of dying of a heart attack as those who are sedentary.

(A) have half or less than half the chance of dying of a heart attack as those who are sedentary

(B) have half the chance, or less, of dying of a heart attack than those who are sedentary do

(C) have half the chance that they will die of a heart attack, or less, than those who are sedentary do

(D) are at least fifty percent less likely to die of a heart attack as those who are sedentary（E）

(E) are at least fifty percent less likely than those who are sedentary to die of a heart attack

我选错了, 选了b , 这里b是错在 chance to do 和chance of doing 上马? 还有其他错么?

11.   Several studies have found that the coronary patients who exercise most actively have half or less than half the chance of dying of a heart attack as those who are sedentary.

(A) have half or less than half the chance of dying of a heart attack as those who are sedentary

(B) have half the chance, or less, of dying of a heart attack than those who are sedentary do

(C) have half the chance that they will die of a heart attack, or less, than those who are sedentary do

(D) are at least fifty percent less likely to die of a heart attack as those who are sedentary（E）

(E) are at least fifty percent less likely than those who are sedentary to die of a heart attack

这道题我也选了b， 我当时觉得E是：less likely than those who are sedentary to die of a heart attack.  觉得红字部分整个修饰前面的those,于是句子的结构就不完整了，至少会引起歧义。

sb+be+adj.+to do sth 这个句型也是有的，比如说I am glad to meet you.但问题是，这个句型里的adj.常是表达人情感、能力等的形容词，如angry ／ pleased ／happy ／surprised ／afraid ／sure等。那么，是不是因为句子里面用了sedentary而避免了这个歧义呢？