问题 解答题

如图是植物细胞结构模式图,将以下A~E各项与图中有关序号对应,填在空白处.

A.含叶绿素,并将光能转变成化学能

B.细胞质

C.控制物质进出细胞

D.细胞壁

E.遗传信息库

A.______,B.______,C.______,D.______,E.______.

答案

如下图所示:1细胞壁、2细胞膜、3细胞核、4细胞质、5液泡、6、叶绿体.细胞壁起着支持和保护的作用;细胞膜起着保护和控制物质的进出的作用;细胞核是遗传信息库,内含遗传物质;细胞质里还有线粒体,将有机物分解成无机物,线粒体使细胞中的一些有机物,经过复杂的变化,将有机物中储存的化学能释放出来,供细胞利用;液泡内的细胞液中溶解着多种物质;叶绿体是进行光合作用的场所,并将光能转变成化学能.

故答案为:6;4;2;1;3

选择题
阅读理解
I was in a strange city and I didn't know the city at all, and what is more, I could not speak a word of the language. After having spent my first day in the town-centre, I decided to lose my way on my second day, since I believed that this was the simplest way of getting to know the strange city.
I got on the first bus that passed, rode on it for several stops, then got off it and walked on. The first two hours passed pleasantly enough. Then I decided to turn back to my hotel for lunch. After walking about for some time, I decided I had better ask the way. The trouble was that the only word I knew of the language was the name of the street in which I lived and even then I pronounced it badly.
I stopped to ask a friendly-looking newspaper-seller. He smiled and handed me a paper. I shook my head and repeated the name of the street and he put the paper into my hands. I had to give him some money and went on my way. The next person I asked was a policeman. The policeman listened to me carefully, smiled and gently took me by the arm. There was a strange look in his eyes as he pointed left and right and left again. I thanked him politely and began walking in the direction he pointed.
About an hour passed and I noticed that the houses were getting fewer and fewer and green fields were appearing on either side of me. I had come all the way into the countryside.
The only thing left for me to do was to find the nearest railway station.
小题1:The writer believed that if you wanted to get to know a strange city, ______.
A.you should go everywhere on footB.you should have a map
C.you should ask people the wayD.you should get lost
小题2: The newspaper-seller ______.
A.could understand what he saidB.didn't know what he said
C.laughed at himD.didn't want to take the money
小题3:The writer's real trouble was that _______.
A.he couldn't speak the language
B.he followed the policeman's direction
C.he took the wrong busD.he left the town-centre
小题4:The policeman ______.
A.didn't help himB.pointed at him
C.didn't understand what he really meantD.didn't know the way