问题 读图填空题

回答下列有关人体免疫的问题。

(1)人体免疫器官主要包括_________(至少答出两个)。下图是人体防御外界病原体侵染的三道免疫防线的示意图,其中①~⑦表示免疫细胞,⑧和⑨表示免疫分子。

(2)以下不属于第1道免疫防线的是______。

A.溶酶体  B.汗液  C.口腔黏膜  D.胃酸

(3)图中细胞①可以吞噬多种病原体,因此这一免疫过程的特点是________。

(4)图中②和③的名称分别是_______和_______:⑧和⑨分别表示_______和________。

(5)接种疫苗后,若有相应病原体再次入侵人体,则人体会迅速产生免疫应答,结合图示分析此现象的原因________________。

(6)接种疫苗属于_______免疫方法。

答案

(1)胸腺   脾脏   骨髓   淋巴结(至少答出2个)

(2)A

(3)非特异性

(4)B淋巴细胞   记忆T细胞   抗体   淋巴因子

(5)初次免疫后,体内已存在记忆B细胞和记忆T细胞。当再次遇到相应的病原体时,记忆B细胞会迅速增殖并分化产生浆细胞,产生大量抗体;同时记忆T细胞也会迅速启动细胞免疫途径

(6)人工

阅读理解

Mark Twain was a great writer. He was from the USA. He was born in 1835. He was also a famous speaker. He was famous for his sense of humour(幽默感). Many people liked to listen to him talk because he liked to tell some interesting stories to make people laugh all the time.

     One day Mark Twain was going to a small town because of his writing. Before he was going to leave, one of his friends said to him that there were always a lot of mosquitoes in the town and told him that he’d better not go there. Mark Twain waved (摇动) his hand and said, “It doesn’t matter. The mosquitoes are no relatives of mine. I don’t think they will come to visit me.”

  After he arrived at the town, Mark Twain stayed in a small hotel near the station. He went into his room, but when he was just about to have a rest, quite a few(许多) mosquitoes flew about him. The waiters felt very sorry about that. “I’m very sorry, Mr. Mark Twain. There are too many mosquitoes in our town.” One of them said to him.

  Mark Twain, however, made a joke, saying to the waiter, “The mosquitoes are very clever. They know my room number. They didn’t come into the wrong room.” What he said made all the people present laugh heartily.

  But that night Mark Twain slept well. Do you know why? That was because all the waiters in the hotel were driving the mosquitoes away for him during the whole night.

小题1:.That day Mark Twain went to the town _____.

A.to see one of his friends

B.because he wanted to do something there for his writing

C.because he was told there were a lot of mosquitoes there

D.to see one of his relatives小题2:. The waiters felt sorry because _____.

A.they did something wrong to Mark Twain

B.their hotel was too small

C.the room was not very clean

D.there were quite a few mosquitoes in Mark Twain’s room小题3:. All the people present laughed heartily because _____.

A.the mosquitoes were very clever and they didn’t come into the wrong room

B.the mosquitoes knew Mark Twain’s room number

C.Mark Twain gave the waiters some nice presents

D.Mark Twain made a joke小题4:. From the story we know _____.

A.no mosquitoes troubled Mark Twain in the night

B.the owner of the hotel told the waiters to look after Mark Twain well at night

C.Mark Twain didn’t have a good rest that night

D.there were not mosquitoes in the hotel any longer

单项选择题