Have you ever had the strange feeling that you were being watched? You turned around and,

Have you ever had the strange feeling that you were being watched? You turned around and, sure enough, someone was looking right at you!

Some parapsychologists （心理学家） say that humans have a natural ability to sense when someone is looking at them. To study whether such a "sixth sense" really exists, Robert Baker, a psychologist at the University of Kentucky, performed several experiments.

In the first one. Baker sat behind unsuspecting people in public places and stared at the backs of their heads for 5 to 15 minutes. The subjects were eating, drinking, reading, studying, watching TV, or working at a computer. Baker made sure that the people could not tell that he was sitting behind them during those periods. Later, when he questioned the suspects, almost all of them said they had no' idea that someone was staring at them. 

For the second experiment. Baker told subjects that they would be stared at from time to time from behind a two-way minor in a lab setting. The people had to write down when they felt they were being stared at and when they weren’t. Baker found that the subjects were no better at telling when they were stared at than if they had just guessed.

Baker’s experiment concludes again that people do not have the ability to sense when they are being stared at. If you doubt the outcome of his two experiments, I suggest you repeat the experiments and see for yourselves.

60. The first experiment made by Baker shows that ____.

A. people can’t realize it when they are watched secretly

B. one can't sense other people’s watching when they are talking

C. people have no idea about the sixth sense of human beings

D. the sixth sense doesn’t work during the first 5 or 15 minutes

61. The second experiment differs from the first one in that ____.

A. the subjects were not directly stared at from time to time

B. the subjects had to write something down in a lab sitting

C. the subjects were good at guessing when they were stared at

D. the subjects were informed of the purpose of the experiment

62. What is the author's attitude towards the result of the experiment? ____.

A. Support           B. Doubt           C. Sympathy        D. Surprise

63. We can infer from the passage that ____.                       

A. it’s most probable that humans have six senses

B. the so-called sixth sense doesn’t exist in human beings

C. the experiments done by Baker hardly explain anything

D. people should make conclusions by themselves