问题 填空题

血液由血浆和______两部分组成;输血的原则是______相互输.

答案

血液由血浆和血细胞组成,血浆的功能是运载血细胞,运输养料和废物.血细胞包括红细胞、白细胞和血小板组成.红细胞.又称红血球,红细胞的主要功能为运输氧气和二氧化碳、缓冲血液酸碱度的变化;白细胞无色,当细菌侵入人体后,白细胞能穿过毛细血管壁进入组织,并将细菌吞噬,人体出现炎症时血液中的白细胞的数量会明显增多;血小板无核,又称血栓细胞,血小板的主要机能包括促进止血作用和加速凝血的作用.

为避免在输血过程中发生红细胞凝集反应,输血以输同型血为原则.例如:正常情况下A型人输A型血,B型血的人输B型血.

故答案为:血细胞;同型血.

阅读理解

Mr. Smith works in an office. He is very busy and has no time to have a good rest. Every evening, when he comes from his office, he’s always tired and wants to go to bed early. But his wife often has a lot of interesting things to tell him after supper. She doesn’t stop talking until she falls asleep, but it’s usually too late and Mr Smith has to get up in time in the morning when she is asleep.

One day the man felt terrible and couldn’t go to work. He decided to go to see a doctor. And Mrs Smith went to the hospital with him. Before her husband said what was the matter with him, the woman told the doctor all and the man understood why. He wrote out a prescription. And when Mr Smith brought the medicine to the resulting-room, the doctor said to her, “The bottle of medicine is for your husband and the pills are for you.”

“For me?” the woman said in surprise, “I’m fine. I don’t need any medicine!” “I don’t think so, madam,” said the doctor, “They are sleeping pills, your husband will soon be all right if you take them.”

小题1:What does Mrs Smith often do after supper?

A.She watches TV

B.She does the chores

C.She begins talking

D.She goes to bed early小题2:Why does Mr. Smith have to get up when his wife is asleep in the morning?

A.Because he can’t fall asleep.

B.Because he has to go to work.

C.Because he doesn’t want to sleep.

D.Because his wife asks him to get up.小题3:What does“prescription ” mean in Chinese?

A.建议

B.方式

C.要求

D.药方小题4:Why couldn’t Mr. Smith go to work one day?

A.Because he didn’t want to work

B.Because his wife didn’t let him go

C.Because he felt ill

D.Because he was too tired to go to work小题5:From the story, we know that___________________.

A.Mrs Smith was ill

B.Mr Smith has to take the pills

C.Mr Smithth wasn’t ill

D.Mrs Smith has to stop talking too much at night.

单项选择题