28.In almost every supermarket it’s easy for us to find carrots a lot of vitamins, which are good for our health.
A. holding B. keeping C. including D. containing
27.This kind of flower only at a particular time every year. Many People come here just to see its beauty.
A. breaks out B. comes out C. dies out D. watches out
26.I won’t go there again. They are too greedy--they me 15 pounds for the broken cup.
A. charged B. paid C. offered D. cost
25.Let’s the radio and see what’s wrong with it!
A. take…part B. tell…from C. separate…from D.take…apart
24.-I failed again in the maths exam. How disappointing!
-You it! You never spend time on your English study.
A. admit B. stand C. need D. deserve
23.Some persons do first, think , and regret forever.
A. lately B. before C. afterwards D. frequently
22.Breakfast is provided at no charge in this hotel.
A. formal B. extra C. personal D. regular
第一节:单项选择(共10小题;每小题1分,满分10分)
从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
21.-Have you seen Madagascar? It’s really a fantastic movie.
-Yes, it is really a big this summer.
A. movie B. hit C. beat D. success
31.(10分)请回答以下问题:
(1)为什么说光合作用是地球上最重要的化学反应。
(2)结构决定功能,功能适应结构。请举例说明细胞是生物体结构与功能的基本单位。
30.(10分)下图表示某生物膜结构,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。请据图回答:
(1)癌细胞的细胞膜,与图一相比,含量较少的是[ ] ________________。
(2)若是红细胞膜,则图中箭头[ ]表示钾离子的吸收过程。
(3)若是线粒体膜,b和c过程运输的气体分别是___________________。
(4)在合成旺盛的细胞内,可与内质网膜直接相连的生物膜有_________________。
(5)透析型人工肾中的血液透析膜模拟了生物膜的_________________性。
(6)提取动物的细胞膜,最好选用_________________做材料,先让其在蒸馏水中吸水胀破,然后经过____________处理即可得到纯净的细胞膜。动物细胞吸水膨胀时B的厚度变小,这说明B具有 。
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