问题 读图填空题

下图是人体消化系统模式图,请据图回答:

(1)在①____内,进行的物理性消化是______,化学性消化是______。   

(2)在一次手术中,医生从病人的消化道中取出一些流质的内容物,经检验得知,内含蛋白质和其初步被消化的物质、淀粉和少量的麦芽糖等。你认为这些内容物最可能来自[ ]________。   

(3)人体消化食物和吸收营养的主要场所是[ ]______,在这个部位有几种消化液,各是由哪些器官分泌的?________________。它具有哪些特点与吸收有关?_____________。   

(4)人体内最大的腺体是[     ]______,它的分泌物是______,如果这个器官出现问题,将影响如下哪种食物的消化____。   

A.豆腐

B.米饭

C.肥肉

D.瘦肉

答案

(1)口腔,牙齿的咀嚼,舌头的搅拌;唾液淀粉酶消化淀粉  

(2)④胃  

(3)⑦小肠;胰液--由胰腺分泌;肠液--由肠腺分泌;胆汁--由肝脏分泌;①长度最长②小肠内表面有皱襞和绒毛增大了吸收的内表面积③小肠绒毛壁、毛细血管壁和毛细淋巴管壁都仅由一层细胞构成,有利于营养物质的吸收  

(4)⑤肝脏;胆汁;C

填空题
单项选择题

B

My family and I lived across the street from Southway Park since I was four years old. Then just last year the city put a chain link fence around the park and started bulldozing (用推土机推平) the trees and grass to make ways for a new apartment complex. When I saw the fence and bulldozers, I asked myself, "Why don’t they just leave it alone"

Looking back, I think what sentenced the park to oblivion (被遗忘) was the drought (旱灾) we had about four years ago. Up until then, Southway Park was a nice green park with plenty of trees and a public swimming pool. My friends and I rollerskated on the sidewalks, climbed the trees, and swam in the pool all the years I was growing up. The park was almost like my own yard. Then the summer I was fifteen the drought came and things changed.

There had been almost no rain at all that year. The city stopped watering the park grass. With- in a few weeks I found myself living across the street from a huge brown desert. Leaves fell off the park trees, and pretty soon the trees started dying, too. Next, the park swimming pool was closed. The city cut down on the work force that kept the park, and pretty soon it just got too ugly and dirty to enjoy anymore.

As the drought lasted into the fall, the park got worse every month. The rubbish piled up or blew across the brown grass. Soon the only people in the park were beggars and other people down on their luck. People said drugs were being sold or traded there now. The park had gotten scary, and my mother told us kids not to go there anymore.

The drought finally ended and things seemed to get back to normal, that is, everything but the park. It had gotten into such bad shape that the city just let it stay that way. Then about six months ago I heard that the city was going to "redevelop" certain worn-out areas of the city. It turned out that the city had planned to get rid of the park, sell the land and let someone build rows of apartment buildings on it.

The chain-link fencing and the bulldozers did their work. Now we live across the street from six rows of apartment buildings. Each of them is three units high and stretches a block in each direc- tion. The neighborhood has changed without the park. The streets I used to play in are jammed with cars now. Things will never be the same again. Sometimes I wonder, though, what changes another drought would make in the way things are today.

Why was the writer told not to go to the park by his mother()

A. Because it was being rebuilt.

B. Because it was dangerous.

C. Because it became crowded.

D. Because it had turned into a desert.