问题 读图填空题

下列是某种雌激素分泌及作用机制模式图。请结合所学知识及图中有关信息,回答问题。

(1)结构A是______,结构C是______;结构ABC中具有神经传导和激素分泌双重功能的是______(用图中字母表示)。物质b是_______,物质e是_______。

(2)过程①通过的方式是______,细胞质受体、核受体与细胞膜上受体的物质属性及功能相似,因此,细胞质和细胞核受体的物质成分应是______,导致细胞质受体与核受体差异的直接原因是_____________。

(3)②是_______________过程,若将物质e导入其他高等运动细胞中,结果高等运动细胞中也能合成相同物质f,这一现象说明_____________________。

答案

(1)下丘脑   卵巢(雌性腺)   A   促雌性激素   mRNA

(2)自由扩散   蛋白质(或糖蛋白)   氨基酸的种类、数目、排列顺序和蛋白质的空间结构(缺一不可)不同

(3)转录  所有生物共用一套遗传密码子

单项选择题
完形填空

第二节完型填空(共20小题;每小题1分,满分20分)

阅读下面短文,掌握其大意,然后从36—55各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上涂黑。

This little story I’m about to tell you happened when I was about 11 years old, and I’II never forget it. I was at my friend Jenny’s __41__  after school one day, and we were doing (or not doing) homework.. __42__ I was there, Jenny’s mom came over to visit.

I don’t remember her name__43__ what her face looked like. I just remember her hands, her voice and the__44__  she taught me.

I can still see her hand __45__  for mine in our introduction. __46__  were so beautiful, I thought; rich, dark skin__47__ complemented(涂了) by the orange colored polish on her nails. Then I __48__ her saying, and not at all in a condescending(居高临下的) __49__ .“Oh no, that is NOT how you shake hands. Let me show you _50___.”

After that, I just remember her voice __51__ the importance of a good handshake, conveying(传递) a positive sense of self, looking at _52___ person in the eye, making that first moment matter…I think in that exchange I first understood__53__.

I respected her for __54__ the time to teach me about one of those subtleties(细微之处) in life. I appreciated the fact __55__  she didn’t look down upon me because I was 11 or because I didn’t know something. And so because of that I felt somewhat respected. I mean the _56___ she treated me. It felt good to be __57__ like a real person. I also appreciate her idea that _58__ someone doesn’t pay attention to something, be patient and point him or her__59__  the right direction. I__60__ her every time I meet someone and shake hands. And I’m so thankful for her little lesson.

41    A. office B. house  C. family D. room

42    A. Although    B. As    C. During       D. If

43    A. and     B. but     C. even   D. or

44    A. homework  B. English      C. lesson      D. knowledge

45    A. reaching down   B. reaching up       C. reaching out      D. reaching far

46    A. It       B. That    C. These      D. They

47    A. patiently    B. beautifully  C. strongly     D. thickly

48    A. listened      B. found  C. heard  D. saw

49    A. manner      B. means C. method      D. voice

50    A. that    B. it     C. how        D. what

51    A. explains     B. explained   C. explain       D. explaining

52    A. the other    B. other   C. another      D. others

53    A. politeness   B. saying C. friendship   D. respect

54    A. costing       B. spending    C. taking D. using

55    A. what   B. which C. that     D./

56    A. place  B. position      C. way    D. time

57    A. talking about     B. talked to     C. talking to   D. talked about

58    A. as soon as   B. as long as   C. once   D. if

59    A. from   B. at       C. in       D. to

60    A. think over  B. think of      C. think about D. think out