来看以下例题：
Passage：…Sculptures must, for example, be stable, which requires anunderstanding of the properties of mass, weight distribution, and stress.Paintings must have rigid stretchers so that the canvas will be taut, and thepaint must not crack, deteriorate, or discolor. These are problems that must beovercome by the artist because they tend to intrude upon his or her conceptionof the work. For example, in the early Italian Renaissance, bronze statues ofhorses with a raised foreleg usually had a cannonball under that hoof. This wasdone because the cannonball was needed to support the weight of the leg. Inother words, the demand of the laws of physics, not the sculptor’s aestheticintentions, placed the ball there. That this device was a necessary structuralcompromise is clear from the fact that the cannonball disappeared when sculptorslearned how to strengthen the internal structure of a statue with iron braces(iron being much stronger than bronze)…
According to paragraph 2, sculptors in the Italian Renaissance stoppedusing cannonballs in bronze statues of horses because
A. they began using a material that made the statues weigh less
B. they found a way to strengthen the statues internally
C. the aesthetic tastes of the public had changed over time
D. the cannonballs added too much weight to the statues
【正确答案】是B。
以上是托福阅读策略中事实信息题的解题方法。大家在备考托福的时候对于阅读部分一定要多多练习，总结经验。