问题 选择题

“细胞小,细胞壁溥,细胞核大,细胞质浓,具有很强的分裂能力”,这是植物体中哪一组织的特点(  )

A.分生组织

B.输导组织

C.保护组织

D.营养组织

答案

A、分生组织的细胞小,细胞壁薄细胞核大,细胞质浓,具有很强的分裂能力,不断分裂产生新细胞形成其它组织. 如根尖的分生区、茎的形成层等属于分生组织.故A正确

B、输导组织有运输物质的作用,植物体内的导管能运送水和无机盐,筛管能运送有机物,属于输导组织.故C错

C、保护组织一般由植物根、茎、叶表面的表皮细胞构成,具有保护内部柔嫩部分的功能.故B错

D、营养组织的细胞壁薄,液泡大,有储存营养物质的功能,含有叶绿体的营养组织还能进行光合作用合成有机物.因此营养组织有制造和储存营养的功能.植物的果肉、叶肉、茎中央的髓等大多属于营养组织.故D错

故选A

阅读理解

Here are two stories from different parts of the world. They seem strange but, believe it or not, they re all true!

John Lee was an Englishman who refused to be hanged! In 1884 the police said Lee had killed an old woman who he used to work with. There was nothing to show that Lee had killed the woman. Lee told the police he hadn’t done it, but no one believed him and he was going to be hanged. On the day of the hanging, however, the door in the floor, through which Lee’s body would fall, did not open. They tried three times but each time the door stayed closed, even though it had worked well the day before. In the end they sent Lee back to prison, where he lived for the next twenty-two years. At all times, John Lee said he hadn’t killed the woman, and he believed it was the "hand of God" that had saved him from death by hanging.

The police in Venezuela (委内瑞拉)in South America followed a man home one night. He was the thief they wanted to catch. However, half of his house was standing in Venezuela and the other half was standing in Colombia (哥伦比亚). Venezuela’s neighbor. When the police entered the house, the man ran upstairs to his bedroom, which was in Colombia, and called his lawyer (律师). The Venezuelan police were not allowed to enter Colombia so they could not enter the bedroom. They asked the police in Colombia to help. The Colombian police refused to help because the man’s crime (罪行)was not a crime in Colombia. In the end, the Venezuelan police gave up and went back to the police station.

小题1:The underlined(下划线) word "hanged" in this passage probably means _.

A.shut in a room »

B.questioned by the police

C.killed by putting a rope around the neck

D.kept in a place小题2: What do we1 know about the door in the floor?

A.It had opened the day before the hanging.

B.It had been broken a long time.

C.After three times, it opened.

D.John Lee’s dead body fell through it.小题3:From the story we know that the thief’s bedroom was____.

A. in Venezuela B. in Colombia

C. in neither Venezuela nor Colombia I), in both Venezuela and Colombia

小题4:Why didn’t the Venezuelan police go into the man’s bedroom?

A.They didn’t know where it was.

B.The Venezuelan police were not allowed to enter Colombia.

C.The police in Colombia told them that (hey would help.

D.The police in Colombia told them not to go inside.小题5: The police in Colombia didn’t help the police in Venezuela to catch the thief because

A.they didn’t know where he was

B.the police in Venezuela didn’t ask for help

C.the man’s lawyer told them not to help

D.the man’s crime was not a crime in Colombia

问答题 简答题