2015-2016学年重庆八中高二下学期月考四生物试卷

适用年级:高二
试卷号:323056

试卷类型:月考
试卷考试时间:2017/7/27

1.单选题(共2题)

1.
下图为染色体数为2m,核DNA数目为2n的某动物精原细胞分裂的示意图, 两对基因A、a和B、b分别在两对同源染色体上, ①③表示细胞处于染色体着丝点(粒)向两极移动的时期。下列叙述正确的是
A.①中有同源染色体,染色体数为2m, 核DNA数目为4n
B.②含2个染色体组,③中无同源染色体, 染色体数目为2m
C.①③每条染色体上相互分离的两个DNA上的基因均有可能出现差异, 但①出现差异的概率明显大于③
D.与图中精细胞同时产生的另外3个精细胞的基因型是aB、ab、AB
2.
下列叙述错误的是()
A.醋酸菌在无氧条件下利用乙醇产生醋酸
B.酵母菌在无氧条件下利用葡萄糖汁产生酒精
C.泡菜腌制利用了乳酸菌的乳酸发酵
D.腐乳制作利用了毛霉等微生物的蛋白酶和脂肪酶

2.选择题(共1题)

3.任务型阅读

    How to Become an Activist (活动家)

    Activists are people who see the need for change and devote their time to doing something about it.{#blank#}1{#/blank#}If you are interested in it you can do so.

    {#blank#}2{#/blank#}This could be anything from a student club to a national organization (like the American Civil Liberties Union or the National Organizers Alliance). Most activist organizations offer different levels of involvement, so you can do whatever you feel most comfortable with, whether that means attending meetings and demonstrations or just donating a little money when you can.

    Volunteer your time. One of the best ways to make a difference is to volunteer your time. Reach out to organizations in your community that do work for your cause, and ask how you can help.

    Donate money or supplies.{#blank#}3{#/blank#}If you can't afford to donate money to an organization that supports your cause, you may be able to donate other things they need, like clothing or canned food.

    Reach out to family and friends. Tell your family and friends about your cause, and invite them to get involved. If they are interested, share literature about your cause or just talk to them about what you have learned.{#blank#}4{#/blank#}

    Promote your cause on social media. You can use social media to help keep your friends and followers informed about the causes you support.{#blank#}5{#/blank#}Also, you can invite your friends to attend events or donate to fundraisers for your cause.

A. Take classes on issues related to your cause.

B. Join an organization that supports your cause.

C. They are driven by passion and a vision for a better future.

D. If you do volunteer work, invite them to volunteer with you.

E. Most activists or charitable organizations need resources to do their work.

F. Post useful articles and write about what you are doing to stay involved.

G. If you can't reach out to them in person, then try connecting to people online.

试卷分析
  • 【1】题量占比

    单选题:(2道)

    选择题:(1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:1

    7星难题:0

    8星难题:0

    9星难题:1