2013-2014学年河南汝阳中学初二下之人类的起源和进化生物卷

适用年级:初二
试卷号:357793

试卷类型:专题练习
试卷考试时间:2017/8/15

1.单选题(共3题)

1.
决定生物进化的内、外在因素分别是()
A.环境因素遗传和变异B.适者生存遗传和变异
C.遗传和变异环境因素D.生存斗争环境因素
2.
原鸡产蛋很少,但现在的鸡产蛋量很大,原鸡进化为蛋鸡的正确顺序是( )
①原鸡产生了可遗传的产蛋多的变异
②产蛋多的变异逐代积累而得到加强
③人们专门饲养和繁殖产蛋多的鸡
A.①②③B.③②①
C.①③②D.②③①
3.
下列关于自然选择学说对生物进化的解释,其中是生物进化的结果是()
A.生物进化的内因是生物能产生各种变异
B.生物进化的外因是生物生存的各种环境条件
C.环境条件对生物的各种变异进行选择,使适者生存,不适者被淘汰
D.长期的生物进化,使生物出现了适应性和多样性

2.选择题(共4题)

4.完形填空。阅读下面短文,掌握其大意,然后从各题所给的四个选项中选出一个最佳答案。

    It was a cold snowy morning after the winter vacation. And it was my first 1 at my new school. I was walking alone slowly and 2 about lots of things. It was early and there weren't many people on the road. Suddenly a girl who was 3 a bike on ice fell down. She was trying hard to get up but fell again. 4 thinking, I went over and helped her. She said “5” with a smile and then rode away. Her words warmed me a lot.

    Finally, I got to school. The teacher led me to the 6 and introduced me to the class. Then he asked me to sit down beside a girl. I felt so 7 that I didn't dare to look at her. Soon the first class, 8, started. Their textbooks were different from those in my old school. As I was wondering 9 to do, an English book appeared in front of me. “Let's share,” the girl beside me said, “Hi, I'm Carrie.” I 10. It was the girl I helped this morning. Later on, we became good friends.

    From that I learned: to help others is actually to help ourselves!

5.—Sir, would you mind speaking a little more ______?

— Of course not. I thought you could follow me.

6.阅读理解。
    In a small town, there lived a doctor. He was good and kind. He was ready to go and help people. People always went to him when they were ill.
    Many years later, the doctor began to forget things. The people were afraid and little by little, they stopped going to him. The doctor saw his business (生意) wasn't as good as before. He thought, “Well, if I were the patients(people who don't feel well), I'd be afraid to go to me too. Maybe it's time for me to stop being a doctor. But if this town has no doctor, what will the people do when they become ill?”
    His wife heard him talking to himself and said, “Why don't you find a young doctor to take your place? Then people will have another good doctor to take care of them and I will get my husband back.”
    The doctor did as what his wife said. He found a very good young doctor to help the people. The doctor and his wife then had time to take long walks together, go dancing, go traveling and spend the rest of their days together.
7.阅读理解。
    In a small town, there lived a doctor. He was good and kind. He was ready to go and help people. People always went to him when they were ill.
    Many years later, the doctor began to forget things. The people were afraid and little by little, they stopped going to him. The doctor saw his business (生意) wasn't as good as before. He thought, “Well, if I were the patients(people who don't feel well), I'd be afraid to go to me too. Maybe it's time for me to stop being a doctor. But if this town has no doctor, what will the people do when they become ill?”
    His wife heard him talking to himself and said, “Why don't you find a young doctor to take your place? Then people will have another good doctor to take care of them and I will get my husband back.”
    The doctor did as what his wife said. He found a very good young doctor to help the people. The doctor and his wife then had time to take long walks together, go dancing, go traveling and spend the rest of their days together.
试卷分析
  • 【1】题量占比

    单选题:(3道)

    选择题:(4道)

  • 【2】:难度分析

    1星难题:0

    2星难题:0

    3星难题:0

    4星难题:0

    5星难题:0

    6星难题:3

    7星难题:0

    8星难题:0

    9星难题:0