试题与答案

中学物理教学中如何突出重点？

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题型：问答题

题目：

中学物理教学中如何突出重点？

答案：

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参考答案：A解析：本组题考查强心苷的理化性质。亚硝基铁氰化钠和2，5-二硝基苯甲酸都是作用于甲型强心苷C位五元不饱和内酯环双键位移产生的C位活性亚甲基的反应。在217～220nm有最大紫外吸收的是甲型强心苷，在2...

考点：初级中学物理中学物理综合练习中学物理综合练习题库
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题型：阅读理解

Each spring brings a new blossom of wildflowers in the ditches along the highway I travel daily to work.

There are some particular blue flowers that have always caught my eye. I’ve noticed that they bloom only in the morning hours and the afternoon sun is too warm for them. Every day for about two weeks, I see those beautiful flowers.

This spring, I started a wildflower garden in our yard. I can look out of the kitchen window while doing the dishes and see the flowers. I’ve often thought that those lovely blue flowers from the ditch would look great in that bed alongside other wildflowers. Every day I drove past the flowers thinking, “I’ll stop on my way home and dig them.” “Gee, I don’t want to get my good clothes dirty…” Whatever the reason, I never stopped to dig them. My husband even gave me a folding shovel（铲子）one year in my car to be used for that expressed purpose.

One day on my way home from work, I was shocked to see that the highway department had destroyed the ditches and the pretty blue flowers were gone. I thought to myself, “Way to go, you waited too long. You should have done it when you first saw them blooming this spring.” A week ago we were shocked and saddened to learn that my oldest sister has a terminal brain tumor（肿瘤）. She is 20 years older than me and unfortunately, because of age and distance, we haven’t been as close as we all would have liked. I couldn’t help but see the connection between the pretty blue flowers and the relationship between my sister and us. I do believe that God has given us some time left to plant some wonderful memories that will bloom every year for us. 

And yes, if I see the blue flowers again, you can bet I’ll stop and transplant them to my wildflower garden.

小题1: Why did those flowers the writer saw only bloom in the morning?

A．Because it was hot in the afternoon.

B．Because someone picked them away.

C．Because someone took them into houses.

D．Because the writer passed them in the morning.小题2: Which of the following statements is right according to the passage?

A．The writer’s sister died of lung tumor.

B．The writer was regretful when she heard her sister’s death.

C．The writer planned to dig the flowers to give them to her husband.

D．The writer’s husband planned to plant some flowers in the garden.小题3: The writer wrote the passage to tell us ________.

A．to enjoy what we have now

B．to value now and not to lose chances

C．to protect the beautiful flowers we see

D．to love those who are your close relatives
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