问题 选择题

某同学利用发生了向光弯曲的燕麦胚芽鞘,制作成切片观察,并绘制了背光侧和向光侧的细胞形态示意图(如下图)。结合课本知识可得出的结论是:

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A.生长素促进生长的原理是能促进:细胞分裂  胚芽鞘的弯曲部位是:①

B.生长素促进生长的原理是能促进:细胞伸长  胚芽鞘的弯曲部位是:②

C.生长素促进生长的原理是能促进:细胞分裂  胚芽鞘的弯曲部位是:②

D.生长素促进生长的原理是能促进:细胞伸长  胚芽鞘的弯曲部位是:①

答案

答案:B

阅读理解

阅读理解.

       Mr. Day is a teacher at a school in a big city in England. He usually goes to France or Canada for

a few days during his summer holidays (假期) and he speaks French very well.

       One year Mr. Day said to one of his friends, "I'm going to have a holiday in Japan. But I can't speak

Japanese, so I am going to evening classes for Japanese lessons for a month before I go. "

        He studied very hard for a month, then he went to Japan.

        When he came back a few weeks later, his friend said to him , " Did you have any trouble (麻烦)

with your Japanese when you were in Japan, Day?"

        " No, I didn't have any trouble with it, " answered Mr. Day, " But the Japanese did !" 

1. Mr. Day is a( n) _____ teacher.

    A. American 

    B. England 

    C. Japanese 

    D. English

2. Every year he goes to _____ for a few days during his summer holidays.

    A. France 

    B. Canada

    C. France and Canada 

    D. France or Canada

3. One year he went to _____.

    A. China 

    B. Japan 

    C. Canada 

    D. France

4. Mr. Day stayed in Japan for _____.

    A. a few days 

    B. a few weeks

    C. ten months 

    D. more than one year

5. Which statement (除述) is RIGHT?

    A. Mr. Day can't speak Japanese very well.

    B. Mr. Day studied very hard, and he could speak Japanese very well.

    C. Three months later, he went to Japan.

    D. The Japanese understood (理解) Mr. Day.

单项选择题