问题 单项选择题

烟斗和雪茄比香烟对健康的危害明显要小。吸香烟的人如果戒烟的话,则可以免除对健康的危害,但是如果改吸烟斗或雪茄的话,对健康的危害和以前差不多。如果以上的断定为真,则以下哪项断定不可能为真

A.香烟对所有吸烟的人的健康危害基本相同

B.烟斗对健康的危害比雪茄要大

C.同时吸香烟、烟斗和雪茄所受到的健康危害,并不大于只吸香烟

D.烟斗和雪茄对所有吸烟斗或雪茄的人的健康危害基本相同

答案

参考答案:D

解析: 题干的意思是说,烟斗和雪茄比香烟对健康的危害明显要小,但吸香烟的人如果改吸烟斗或雪茄,对健康的危害并不会减少。说明烟斗和雪茄对健康的危害,在从不吸香烟的人和原来吸香烟后来又改吸烟斗和雪茄的人之间是不同的。D项与此意思不同,故不可能为真。

阅读理解

阅读理解。

      Elizabeth Blackwell was born in England in 1821, and moved to New York City when she was ten

years old. One day she decided that she wanted to become a doctor. That was nearly impossible for a

woman in the middle of the nineteenth century. After writing many letters asking for admission(录取) to

medical schools, she was finally accepted by a doctor in Philadelphia. She was so determined that she

taught school and gave music lessons to get money for the cost of schooling.

     In 1849, after graduation from medical school. she decided to further her education in Paris. She

wanted to be a surgeon(外科医师) , but a serious eye problem forced her to give up the idea.

     Upon returning to the United States, she found it difficult to start her own practice because she was

a woman. By 1857 Elizabeth and her sister, also a doctor, along with another woman doctor, managed

to open a new hospital, the first for women and children Besides being the first woman physician and

founding her own hospital , she also set up the first medical school for women.

1. Why couldn't Elizabeth Blackwell realize her dream of becoming a surgeon?

A. She couldn't get admitted to medical school

B. She decided to further her education in Paris

C. A serious eye problem stopped her

D. It was difficult for her to start a practice in the United States

2. What main obstacle (障碍) almost destroyed Elizabeth's chances for becoming for a doctor?

A. She was a woman.                  

B. She wrote too many letters.

C. She couldn't graduate from medical school.  

D. She couldn't set up her hospital.

3. How many years passed between her graduation from medical school and the opening of her hospital?

A. Eight years    

B. Ten years      

C. Nineteen years    

D. Thirty-six years

4. According to the passage, all of the following are "firsts" in the life of Elizabeth Blackwell except 

    that she ______.

A. became the first woman physician      

B. was the first woman doctor

C. and several other women founded the first hospital for women and children

D. set up the first medical school for women

单项选择题