问题 实验题

某家庭中,哥哥患了病毒性肝炎,并且传给了弟弟,请分析:

(1)导致弟弟患病的传染源是        ,弟弟很快就染上了此病,说明他是        

(2)该病的传播途径主要是       在哥哥发病(初期、中期)传染性最强.。

(3)从预防传染病的一般措施看,对哥哥采取隔离措施属于            ;对他们的饮食用具进行消毒属于                       ;禁止其亲人随便去医院探望属于                

答案

(1)哥哥;易感者;

(2)饮食;初期;

(3)控制传染源;切断传播途径;保护易感者.

题目分析:(1)传染病流行的三个基本环节为传染源、传播途径和易感人群.传染源是指病原体已在体内生长、繁殖并能散播病原体的人和动物;传播途径是指病原体从传染源到易感人群经过的途径;易感人群是指对某种传染病缺乏特异性免疫力的人群,题中哥哥属于传染源,弟弟属于易感者.

(2)传播途径是指病原体从传染源到易感人群经过的途径,病毒性肝炎的传播途径主要是饮食;传染病传染性最强的时期是发病初期,因此对传染病患者要作答早发现、早隔离.

(3)预防传染病的一般措施有控制传染源、切断传播途径、保护易感人群;对哥哥采取隔离措施属于控制传染源,对一定场所、饮食用具进行消毒等都属于切断传播途径;禁止其亲人随便去医院探望属于保护易感人群.

故答案为:(1)哥哥;易感者;

(2)饮食;初期;

(3)控制传染源;切断传播途径;保护易感者.

完形填空

根据短文内容按要求完成下列各题。

The fox installs(安装) a telephone, but no one telephones him. He feels very unhappy.

In his dream he dreams that someone calls him. He decides to call back.

First he calls the crow (乌鸦), but the crow says she didn’t telephone him because he is still angry with him. As you know, the fox cheated the crow of her meat by asking her to sing a song.

Then the fox rings Aunt Bear. When she learns it is the fox’s voice, the bear loses her temper (脾气) because the fox cheated her of her honey several days ago. She tells him that she would never telephone him.

At last he calls the wolf. The wolf is sleeping at the moment. When he knows it is the fox who telephones him, he becomes so angry that he says he will never forgive (原谅) the fox. You know, once the fox led him into the hunter’s trap (圈) .

From then on, the fox never telephones others and his telephone becomes useless.

小题1:Who telephones the fox after he installs a telephone?(根据短文内容回答问题)

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小题2:Why does Aunt Bear lose her temper when she learns it is the fox’s voice?(根据短文内容回答问题)

                                                                             

小题3:How many animals does the fox telephone?(根据短文内容回答问题)

                                                                             

小题4:He becomes so angry that he says he will never forgive the fox. (改为同义句)

He becomes ________ angry__________ forgive the fox.

小题5:In the passage, the underlined word “He” refers (指) to ________.

单项选择题