摘要:4.

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(每空1分,)如图甲表示某生物膜结构,图中A、B、C、D、E、F表示某些物质,a、b、c、d表示物质跨膜运输方式。图乙和图丙表示物质运输曲线,请据图回答:

(1)A代表        分子,B代表           ,D代表           
(2)动物细胞吸水膨胀时B的厚度变小,说明B具有                 
(3)维生素D和葡萄糖从肠腔进入小肠上皮细胞的过程分别是图中编号          
(4)若图甲是癌细胞的细胞膜,则膜上含量较正常细胞减小的物质是[   ]        
(5)若图中是线粒体膜,b和c过程运输的气体分别是          。b、c运输方式符号图         所表示的物质运输曲线。
(6)若图甲表示人体红细胞膜,则表示Na、K运输的分别是图中        。Na、K的运输方式符合图中          所示曲线。
(7)已知红细胞吸收葡萄糖是协助扩散,而有人认为小肠上皮细胞以主动运输的方式吸收葡萄糖,请设计实验加以确定。
①实验步骤:
第一步:取甲、乙两组生长状况相同的小肠上皮细胞,放入适宜浓度的含有葡萄糖的培养液中。
第二步:甲组细胞给予正常的呼吸条件,                                
第三步:                                                            
②预测实验结果并分析:
a.若甲、乙两组细胞对葡萄糖的吸收速率基本相同,则                   
b.                                                                 
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(Four students are talking about the future after class.)
Deng Yu :In 2050, China will be richer than it is now, Beijing will be getting ready for the 40th Olympic Games in 2052. We will see the blue and clear sky and smell the fresh air. There will be more pandas living happily China. I believe that 2050 will be the year of China.
Liu Yuan :A holiday to the moon will no longer be a dream. We can also travel far to other planets and talk with the spacemen. We might also eat something like pills(药丸)instead of today’s meals. Everyone will enjoy a longer life.
Sun Wei :Robots will be very popular. They will do what people don’t want to do. We’ll build new homes on other planets. By then, I’ll be sixty years old. Maybe we will have an exciting talk in my new home on another planet!
Zhang Lan:By the year of 2050, cloning(克隆)will be used in many ways. It will bring back animals which disappeared many years ago. There will be no pollution, the whole world will be one big family. There will be no wars. As time passes, we’ll live a much easier and better life.
【小题1】      thinks that people can spend their holidays on the moon in the future.
A.Deng Yu              B.Zhang Lan            C.Liu Yuan
【小题2】.What does Zhang Lan think will happen in the future.
A.There’ll be more animals which disappeared many years ago.
B.Robots will do the things that people don’t want to do.
C.People can talk with the spacemen.
【小题3】The 40th Olympic Games will be hosted in       .
A.Paris                B.Beijing              C.London
【小题4】How old will Sun Wei be        by 2050?
A.50                   B.60                   C.70
【小题5】.From the talk, we can know that       .
A.the 40th Olympic Games will take place in 2052.
B.we will have the same food in 2050 as we do now.
C.all the people will move to another planet in the future.

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