问题 实验题

下图是四种细胞比较图,据图分析回答:

(1)甲、乙和丙三种细胞结构与丁细胞的区别是         

(2)“种瓜得瓜,种豆得豆”这种现象主要决定于甲种细胞的[  ]         

(3)甲不同于其它三种细胞的主要原因是甲细胞中有[  ] __________________,能进行             合成有机物,而其它三种必须以外界环境中         __    为“食物”。

答案

(1)是否有成形的细胞核(2)[4]细胞核

(3)[3]叶绿体 光合作用   现成的有机物

题目分析:

 

图中甲是植物细胞:1细胞壁、2细胞膜、3叶绿体、4细胞核、5液泡、6细胞质;

乙图是动物细胞:包括2细胞膜、4细胞核、6细胞质;

丙是酵母菌:包括1细胞壁、4细胞膜、2细胞核、5液泡、3细胞质;

丁是细菌:1鞭毛、2荚膜、3细胞壁、4细胞膜、5未成形的细胞核、6细胞质。细菌与植物细胞比较,细菌没有成形细胞核和叶绿体。

(1)由分析可知,甲植物细胞、乙动物细胞和丙酵母菌的细胞结构中都有成型的细胞核,而细菌的结构中没有成形细胞核。

(2)细胞核中含有遗传物质,“种瓜得瓜,种豆得豆”这种现象主要决定于甲种细胞的[4]细胞核。

(3)植物细胞不同于其它三种细胞的主要原因是植物细胞中有[3]叶绿体,能进行光合作用合成有机物,营养方式为自养,而其它三种必须以外界环境中现成的有机物为“食物”,营养方式为异养。

点评:细胞是生物体(病毒除外)结构和功能基本单位,掌握植物细胞的基本结构和功能是学习生物细胞的基础。

单项选择题
阅读理解

As a solo artist,Brightman has sold 26 million albums and two million DVDs in 34 countries. Her musical styles put opera, pop and jazz together. She is popular in the States but not here(Britain)—the image of her and her second husband, Andrew Lloyd Webber(he much older, she his muse) seems for ever frozen.

The 47-year-old singer talks about the new album Symphony that came out of a “very dark time”, including her decision to give up trying to have children. “People have suggested I could adopt,” Brightman says. “But work is central to my life now. And so I am going to put it to one side. After a while not having children becomes the normal and perhaps that might sound alarming, to parents especially, but I have never known anything different. I’m not hurt by not having children. My life and career are incredibly rich.”

Talking about growing up in a large family in Berkhamsted (father a property developer who later committed suicide), she says: “I was gifted as a child, and very musical. I seemed to be good at anything to do with the arts. At 5 I understood the music I was dancing to and had an eye for costume.” She first appeared in a West End musical at 11 and hated boarding school.

Brightman led the saucy dance troupe(辣妹三人舞)Hot Gossip and had her first hit with I Lost My Heart to a Starship Trooper in 1978. At 18 she married a music manager called Andrew Graham Stewart. “I was probably in love but I can’t remember. Girls change such a lot between 18 and 22. It didn’t really work out.” In 1981 she was spotted by Lloyd Webber. She became his leading lady in Song and Dance, Requiem and Phantom of the Opera. They married in 1984.

Brightman says she felt hostility(敌意) “from the beginning. I haven’t tried to understand it. I’ve done very well everywhere else, especially the UK, where I now live. I just accept it for what it is. The more you are away from Britain, the more you appreciate it. But I don’t miss it, although I miss my family. Our profession can be uncomfortable but I enjoy what I do. I get on with it.”

小题1:The first paragraph tells us that ______.

A.Brightman is very popular around the world except in America

B.Brightman’s musical style is a mixture of opera, pop and jazz

C.the British people don’t like her for her style of music

D.Brightman is much older than Andrew Lloyd Webber小题2:Brightman decided to give up having children because ______.

A.she could adopt one

B.her life and career were unbelievably rich without children

C.she felt it normal not to have children

D.she was too busy小题3:The following statements are true except ______.

A.Brightman first appeared in a West End musical at 5

B.Brightman disliked life on campus

C.Brightman was very gifted when she was young

D.the saucy dance troupe made Brightman famous小题4: The underlined word in the fourth paragraph probably means ______.

A.located

B.admired

C.followed

D.found小题5:What does the author try to say in the last paragraph by quoting Brightman’s words?

A.Brightman has to accept the fact that she isn’t liked in Britain

B.Brightman lives in America but she loves her own country

C.The British coldness towards Brightman led to her hatred to her homeland

D.Brightman was at a loss why she was not welcome in Britain