阅读理解。
Jim suffered heart problems. In conversation he expressed little joy and it seemed that his life was
drawing to a close.
When his heart problems led to operation, Jim went through it successfully, and a full recovery was
expected. Within days, however, his heart was not beating properly. Jim was rushed back to operation,
but nothing was found to explain the cause of his illness. He died on the operating table on the day before
his 48th birthday.
Dr. Bruce Smoller, a psychologist (心理学家), had had many conversations with him, and the more
he learned, the stranger he realized Jim's case was. When Jim was a child, his father, a teacher, suffered
a heart attack and stayed home to recover. One morning Jim asked his father to look over his homework,
promising to come home from school at noon to pick it up. His father agreed, but when Jim returned his
father had died. Jim's father was 48.
"I think all his life Jim believed he killed his father," Dr. Smoller says."He felt that if he had not asked
him to look at his homework, his father would have lived. Jim had been troubled by the idea. The operation
was the trial (判决) he had expected for forty years." Smoller believes that Jim willed himself not to live to
the age of 48.
Jim's case shows the powerful role that attitude (态度) plays in physical health, and that childhood
experiences produce far-reaching effect on the health of grown-ups. Although most cases are less direct
than Jim's, studies show that childhood events, besides genes, may well cause such midlife diseases as
cancer, heart disease and mental illness.
1. Jim was sent back to operation because _____.
A. his heart didn't work well
B. he expected a full recovery
C. his life was drawing to a close
D. the first one wasn't well performed
2. What made Dr. Smoller feel strange about Jim's case?
A. Jim died at a young age.
B. Jim died on the operating table.
C. Both Jim and his father died of the same disease.
D. Jim's death is closely connected with his father's.
3. From Smoller's words, we can infer that ______.
A. Jim's father cared little about his study
B. Smoller agreed that Jim did kill his father
C. Jim thought he would be punished some day
D. Smoller believed Jim wouldn't live to the age of 48
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4. Which of the following could have strong effect on one's physical health according to the text.?
a. One's genes.
b. One's life in childhood.
c. One's physical education.
d. The date of one's birthday.
e. The opinions one has about something.
A. a, b, d
B. a, b, e
C. a, c, e
D. b, c, d
gt22。落地前1s初的速度v＝2m/s，落地的总时间t=
＝1.2s
gt2=-2.4m,抛出点距地面的高度H＝2.4m。