试题与答案

(A)Linda Evans was my best friend—like the

题型:单项选择题

题目:

(A)

Linda Evans was my best friend—like the sister I never had. We did everything together: piano lessons, movies, swimming, and horseback riding.

When I was 13, my family moved away. Linda and I kept in touch through letters, and we saw each other on special time—like my wedding and Linda’s. Soon we were busy with children and moving to new homes, and we wrote less often. One day a card that I sent came back, stamped "Address Unknown." I had no idea how to find Linda.

Over the years, I missed Linda very much. I wanted to share happiness of my children and then grandchildren. And I needed to share my sadness when my brother and then mother died. There was an empty place in my heart that only a friend like Linda could fill.

One day I was reading a newspaper when I noticed a photo of a young woman who looked very much like Linda and whose last name was Wagman—Linda’s married name. "There must be thousands of Wagmans," I thought, but I still wrote to her.

She called as soon as she got my letter. "Mrs. Tobin!" she said excitedly, "Linda Evans Wagman is my mother."

Minutes later I heard a voice that I knew very much, even after 40 years, laughed and cried and caught up on each other’s lives. Now the empty place in my heart is filled. And there’s one thing that Linda and I know for sure: We won’t lose each other again!

They haven’t kept in touch()

A. for about 40 years

B. for about 27 years

C. since they got married

D. since the writer’s family moved away

答案:

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参考答案:A

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题型:问答题 案例分析题

材料:

教学内容:酶的发现和高效性。

实验:比较过氧化氢酶和3价铁离子的催化效率。

教师活动:分组实验比较与3价铁离子肝脏研磨液对过氧化氢的作用。启发学生观察实验,分析得出肝脏研磨液中存在某种物质,其催化效率比3价铁离子高,从而引出酶的存在及特性。

学生活动:人人动手实验,仔细观察实验现象,积极思考产生该现象的原因。并由此推测酶与一般的化学催化剂相比具有哪些相同和不同的特点。通过对“比较过氧化氢酶和3价铁离子的催化效率”实验的观察和分析,以及前后的联系,大部分学生能得出实验结论:酶具有高效性。

根据上述材料,回答问题:

(1)上述材料中的教师教学使用了哪种教学策略?试对其进行评析。(2)结合以上材料说说这种教学策略的特征有哪些?

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