问题 单项选择题 A1型题

关于再生障碍性贫血发病机制不正确的是()。

A.造血干细胞受损

B.造血微环境异常

C.T辅助细胞功能增强

D.T抑制细胞功能增强

E.病人血清和骨髓中干扰素水平提高具有抑制造血

答案

参考答案:C

阅读理解

Four students are talking about the future after class.

Deng Yu:  In 2050, China will be richer than it is now. Beijing will be getting ready for the 40th Olympic Games in 2050. We will see the blue and clear sky and smell the fresh air. There will be more pandas living happily in China. I believe that 2050 will be the year of China.

Liu Yan:  A holiday to the moon will no longer be a dream. We can also travel far to other planets and talk with spacemen. We might also eat something like pills instead of today’s meals. Everyone will enjoy a longer life.

Sun Wei:  Robots will be more popular. They will do what people don’t want to do. We’ll build new homes on other planets. By then, I’ll be sixty years old.

Zhang Lan:  By the year of 2050, cloning will have been used in many ways. It will bring back animals which disappeared many years ago. There will be no pollution. The whole world will be one big family. There will be no wars. We’ll live a much easier and better life.

小题1:Which of the following is NOT true according to the text?

A.China will be richer than it is now.

B.Shanghai will be getting ready for the 40th Olympic Games.

C.We will see the blue and clear sky and smell the fresh air.

D.More pandas will live happily in China.小题2:______ thinks that people can spend their holidays on the moon in the future.

A.Deng Yu

B.Zhang Lan

C.Sun Wei

D.Liu Yan小题3:Zhang Lan thinks ________________ in the future.

A.people will live in a world without wars

B.robots will do everything for people

C.people can talk with spacemen

D.2050 will be the year of China.小题4:What is the dialogue mainly about?

A.the 40th Olympic Games

B.How to spend our holiday

C.the future

D.cloning

阅读理解

阅读理解

     "How was school, Ben?" I asked my grandson after he began kindergarten (幼儿园) this year."The

work is too long...and there's not enough time to play, " he replied.

     I couldn't help but remember Ben's own mother, my daughter, Jane, and her reaction (反应) to the

first day of school.Julie was also disappointed with the first day of school and so was her little sister."I

want to go 'sool'and you not let me!" my threeyearold daughter announced angrily after her big sister got

on the big yellow school bus.

     When Julie returned home that afternoon I asked her the same question that I asked Ben, "How was

school, Julie?" Julie replied, "I didn't learn to read today."

     This year as the school bus went by my house, my mind went back to those school days again.I could

almost smell the chalk dust in the air.I also wonder what the children these days manage to get chosen to

do in order to get out of school for a few moments since there are no erasers to clean.It was fun to be

"chosen" for eraser cleaning duty.This was a task finished by going outside and beating erasers together

while sneezing and coughing.No_wonder_so_many_babies_now_have_allergies_(过敏症), it's_simply_

because_we_all_have_chalk_dust_in_our_lungs!

     On the first day of school, the expectation was so great that I would ready long before it was time to

leave for school.We didn't miss having backpacks because we had cigar boxes.We carried our small

supplies inside a cigar box from one of the local stores.We saved the cigar boxes and used them from

year to year until they fell apart.

     The first day of school was exciting.It was a new beginning.The doors of knowledge had been opened.The first day of school is an event in our lives that most of us remember.It's a big step for a small child

toward leaving babyhood behind and so "there isn't enough time to play".

     No matter how old we get, nor how much we learn, it still seems like "The work is too long...and

there's not enough time to play."

1. Why did Jane become angry according to the passage?

A. Because she didn't learn to read on the first day of school.

B. Because there was too much work for her to do at school.

C. Because she had no time to play at school.

D. Because she wasn't allowed to go to school.

2. The underlined sentence in Paragraph 4 suggests that________.

A. the author was thinking of her school days jokingly

B. the author warned students against the harm of chalk dust

C. the author suffered from an allergy because of chalk dust

D. the author doubted whether her lungs had chalk dust

3. When the author went to school, she________.

A. usually carried a backpack full of books

B. used to fill a cigar box with small things

C. wasn't happy and expected nothing

D. often had a cigar box instead of a backpack

4. In the opinion of the author, the first day of school is________.

A. a day when a child is the happiest

B. a day when a child does much work

C. the beginning of great learning

D. the end of childhood full of toys

5. Which of the following may the author agree with?

A. Children have too much homework to do now.

B. Teachers should make their classes interesting on the first day of school.

C. School days haven't changed over years.

D. People never have enough time to play once they start school.