too to的用法
too to用法：too表示“也”“还”“又”常用于肯定句中，且常用于句末，有时也用于句中。
Too A to B结构是我们从小学就开始接触的，表示“太……而不能……”由于后面的不定式本身就带有否定含义，因此其中的A跟B是取反的逻辑。
Not only is the advent of bookless or largely bookless libraries too large and powerful a change to be _____, it also offers too many real advantages for it to be considered a tragedy.
A. understood
B. averted
C. foreseen
D. forestalled
E. endured
F. anticipated
答案：BD
因为这道题目当中出现了too large and powerful a change to be ____结构，所以空格要跟large and powerful a change 进行对应取反。
large and powerful是一组正向含义的形容词，因此空格要填具有负向含义的动词。正确选项BD表示"避免阻止"，是负向词。
选项中的另外一组同义词CF预见预期是正向含义的动词，不构成取反，因此不能选择。
但too…to…结构并不总是取反的。比如下面这道题：
If you follow your intuition, you will more often than not err by misclassifying a random event as (i)_____. We are far too willing to (ii)_____ the belief that much of what we see in life is random.
A. uncharacteristic D. countenance
B. systematic E. reject
C. arbitrary F. champion
答案：BE
