问题 解答题

白求恩是一位伟大的国际主义战士.一次在给一位战士做手术时,需要输血,但是存储的血液恰好用完,需要找人输血,但是在场的战士没有与伤员血型相同的,白求恩挺身而出,说:“我是万能的输血者,抽我的!”

(1)你知道白求恩是ABO血型系统中的______型.

(2)那次白求恩给伤员输了300毫升血液,会影响他的健康吗?______.

(3)临床上常根据病情的需要有针对性选用不同的成分输给病人体内,严重贫血的病人应输入______.

A.血浆 B.血小板 C.红细胞 D.白细胞

(4)安全输血应以输______为原则.

答案

(1)、输血以输同型血为原则.但在紧急情况下,AB血型的人可以接受任何血型,O型血可以输给任何血型的人,被称为万能的输血者. 如果异血型者之间输血输得太快太多,输进来的凝集素来不及稀释,也可能引起凝集反应.因此,输血时应该以输入同型血为原则.异血型者之间输血,只有在紧急情况下,不得已才采用.结合题意可知,白求恩是O血型.

(2)、人体内的血量是相对稳定的,成年人的血量为体重的7%~8%.医学研究证明,如果一次失血不超过400ml,血浆和血细胞可以在短时间内通过自身的调节作用恢复到正常水平.一个健康的成年人每次献血200~300ml不会影响身体健康,而且还有利于提高自身造血器官的造血功能.

(3)、人体血液中的红细胞内有一种红色含铁的蛋白质,缺铁或缺蛋白质易患贫血,严重贫血患者主要是红细胞数量过少或血红蛋白浓度过低,但总血量并不减少,所以输入浓缩的红细胞悬液即可.

(4)、输血以输同型血为原则.但在紧急情况下,AB血型的人可以接受任何血型,O型血可以输给任何血型的人.

故答案为:(1)O

(2)不会.

(3)C

(4)同型血

阅读理解

阅读理解。

     Hi! I'm Peter. I'm in the seventh grade. I have one thing to say. It's not easy when you are a child!

     Yesterday, I had a really good time when I was playing outside with my friends. But my mother came

out and said, "Peter, you have to come back and do your homework." Last Friday, there was a scary film

on TV. It was really exciting. But my father did not let me watch. He said, "You're too young to see this

film." Last Saturday, I wanted to buy a birthday gift for my friend. But I had to wait for my mom to come

back because I had no money.

     I will be an adult (成年人) in the future. When I grow up (长大) no one can tell me what to do or

when to do it; I do not do any homework; I can do what I want to do. I will have a lot of money; I will

buy many gifts for my friends.

1. Peter thinks it is _____ when he is a child.

A. fun

B. happy

C. difficult

D. easy

2. Who wanted Peter to do his homework? _____.

A. His friend

B. His teacher

C. His father

D. His mother

3. What did Peter want to do last Friday? He _____.

A. wanted to see a film

B. wanted to buy a gift

C. wanted to do his homework

D. wanted to play with a friend

4. Did Peter buy a gift for his friend_____.

A. Yes, he did

B. No, he didn't

C. We don't know

D. No, he did

5. Which of the following is NOT TRUE? _____.

A. Peter had a nice day yesterday

B. Peter doesn't like scary films

C. Peter wants to buy a lot of gifts for his friends in the future

D. Peter wants to do many things when he grows up

多项选择题 案例分析题