1.This selection can best be titled____________.
A. Measuring Your Intelligence
B. Intelligence and Environment
C. The Case of Peter and Mark
D.How the Brain Influences Intelligence
2.The best statement of the main idea of this passage is that _______.
A. human brains differ considerably
B. the brain a person is born with is important in determining his intelligence
C. environment is crucial in determining a person’s intelligence
D. persons having identical brains will have roughly the same intelligence
3.According to the passage, the average I. Q. is___.
A. 85 .
B. 100
C. 110
D. 125
4.The case history of the twins appears to support the conclusion that_______.
A. inpiduals with identical brains seldom test at the same levelB. an inpidual’s intelligence is determined only by his environmentC. lack of opportunity blocks the growth of intelligenceD. changes of environment produce changes in the structure of the brain
5.This passage suggests that an inpidual’s I. Q. ____.
A. can be predicted at birth
B. stays the same throughout his life
C. can be increased by education
D. is determined by his childhood