问题 单项选择题

关于支气管舒张药的叙述,错误的说法是()

A.控释茶碱昼夜血药浓度平稳,不良反应少

B.用药方法一般首选口服药,因为起效迅速,安全性高

C.抗胆碱药可以阻断节后迷走神经通路,降低迷走神经兴奋性而起到舒张支气管作用

D.肾上腺素、麻黄素由于心血管不良反应多已被高选择性的β2受体激动剂所替代

E.β2受体激动剂是控制哮喘急性发作症状的首选药物

答案

参考答案:B

阅读理解

Oprah Winfrey is not just a very successful TV personality(名人) in the US, she is also a woman who has encouraged millions. For those people, her life and her success are a good example. She has struggled with many of the challenges(挑战)that we all face, and she has changed her life. Her message is powerful: I did it, and so can you.

Oprah Winfrey is a black woman whose becoming famous is an encouraging story. She was born on January 29, 1954 in a small village in America. Her patents were very poor. For her family, life seemed to hold no promise.

But there was nothing that could stop Oprah. She was an extremely bright girl at school. She asked her kindergarten teacher to let her go to school sooner and she also skipped (跳级)the second grade of primary school(小学). Her life from the age of six till about fourteen was very hard. For many women such difficulty would be too heavy to bear(忍受). But not for Oprah. When she was fourteen, Oprah went to live with her father. Her father showed her how hard work and discipline(自律) could lead to self-improvement. Oprah listened to her father, and a few years later she won a college scholarship that allowed her to go to university.

Two years later, after graduation, she started working for television. For more than ten years she worked for different TV stations across the country. In 1984, she moved to Chicago, where she became the host of a talk show called "AM Chicago". When Oprah started, "AM Chicago" had few listeners. By September of the next year, the show was so successful that it was given a new name: 'The Oprah Winfrey Show".

Oprah Winfrey's story encourages many people to believe that success and happiness in life are within reach for everyone.

小题1:What does Oprah Winfrey mean by saying “I did it”?

A.I managed to over come (战胜)the challenges.

B.I encouraged many people who want to succeed.

C.I created many chances to help people.

D.I was respected as a source of strength.(力量源泉)小题2:When Oprah Winfrey was a child, her parents were so poor that _____.

A.life seemed hopeless.

B.her family never promised anything.

C.her family could hardly keep any promise.

D.nobody trusted her family小题3:From the third paragraph we can infer________.

A.Oprah was older than most of her schoolmates when she finished primary school.

B.Oprah was younger than most of schoolmates when she finished primary school.

C.Oprah couldn’t finish primary school because her family was very poor.

D.Oprah stopped her study when she was in the second grade of primary school.小题4:Which of the following statements is WRONG according to the passage?

A.Oprah’s father had a great effect(影响) on her.

B.AM Chicago was a local newspaper in Chicago.

C.Oprah worked for different TV stations in the US.

D.Oprah suffered a lot when she was young.小题5:The best title of the passage may be _____.

A.Oprah Winfrey’s TV show

B.A popular TV show in America

C.Oprah Winfrey

D.How to become a successful host

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