问题 填空题

(2分)某校初三学生去野外野炊: 

(1)野炊活动中,东东引燃细枯枝后,迅速往灶里塞满枯枝,结果燃烧不旺,并产生很多浓烟,说明物质充分燃烧需要的条件是                     ; 

(2)活动过程要注意防火安全,野炊结束后,应及时把火熄灭,可采用的灭火方法有              。(写一点)

答案

(1)氧气充足 (2)用水浇灭

题目分析:(1)物质燃烧时,氧气越充足,燃烧越旺,燃烧不旺是因为往灶里塞的枯枝太多,进入的氧气少,枯枝燃烧不充分;(2)可通过燃烧的条件进行处理,故可用采用的灭火的方式是:把枯枝撤走或用水把火浇灭.

阅读理解

阅读理解。

     A German taxi-driver, Franz Bussman, recently found a brother who was thought to have been killed

twenty years before.

     While on a walking tour with his wife, he stopped to talk to a workman. After they had gone on, Mrs

Bussman commented on the workman's close resemblance to her husband and even suggested that he

might be his brother. Franz poured scorn on the idea, pointing out that his brother had been killed in action

during the war. Though Mrs. Bussman was fully acquainted with this story, she thought that there was a

chance in a million that she might be right.

     A few days later, she sent a boy to the workman to ask him if his name was Hans Bussman, Needless

to say, the man's name was Hans Bussman and he really was Franz's long-lost brother. When the brothers

were re-united, Hans explained how it was that he was still alive.

     After having been wounded towards the end of the war, he had been sent to hospital and was separated

from his unit. The hospital had been bombed and Hans had made his way back into Western Germany on

foot. Meanwhile, his unit was lost and all records of him had been destroyed. Hans returned to his family

home, but the house had been bombed and no one in the neighborhood knew what had become of the

inhabitants. Assuming that his family had been killed during an air-raid (空袭), Hans settled down in a Village

fifty miles away where he had remained ever since.

1. Which of the following can be used as the best title of the passage?

A. Living Not Far

B. A Chance in a Million

C. Coming Back to Life

D. Back after the War

2. Why did Franz laugh at his wife's idea?

A. Because Franz believed that his brother had already been killed in the war.

B. Because Franz believed that many people looked closely like his brother.

C. Because Franz thought that his wife was just joking.

D. Because Franz believed there was a chance in a million that the workman was his brother.

3. Which of the following orders is right?

    a. He walked back to Western Germany.

    b. He was wounded when the war was coming to the end.

    c. The hospital was destroyed by bombs.

    d. He came back to his family house.

    e. He was sent to hospital. f. His unit of German didn't exist any longer.

A. b,a,e,d,f,c

B. b,e,c,a,f,d

C. b,e,a,c,d,f

D.b,c,f,d,a,e

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