问题 单项选择题

每年一月的最后一个星期日,是“世界防治麻风病日”。麻风病是由麻风杆菌引起的一种慢性接触性传染病。下列生物与麻风杆菌结构相似的是()

A.酵母菌

B.黑藻

C.蓝藻

D.HIV(人类免疫缺陷病毒)

答案

参考答案:C

解析:麻风杆菌是细菌的一种,属于原核生物。酵母菌是真核生物,黑藻是真核生物,蓝藻是原核生物,HIV是病毒,没有细胞结构,故C正确。考点:本题主要考查原核生物的结构,意在考查考生能理解所学知识的要点,把握知识间的内在联系,形成知识的网络结构的能力。

阅读理解

阅读理解。

     Summer is almost over and school will start soon, Bill and his father go to a store for school things.

 They see all kinds of notebooks, rulers, pens and pencils. They also see this sign (招牌).

                                       The Light (灯) Writer

        Have a look at the new Light Writer pen.

        This kind of pen has a light in it.

        Now you can write in the dark (黑暗).

        You can have fun when you write.

        Light Writer pens come in three colors: black, blue and red.

        Anybody can afford our great LOW price of ONLY $1.59.

                                         BUY ONE TODAY!

1. Light Writer is the name of a kind of _____.

    A. book                

    B. sport                 

    C. pen

2. Why does Bill go to the store?

    A. He needs a new Light Writer.

    B. He needs to buy school things.

    C. He likes to go shopping.

3. The purpose (目的) of the sign is to_____.

    A. sell pens          

    B. sell lights                

    C. help kids have fun

4. What does the word "low"mean in Chinese?

    A. 浅的.            

    B. 矮的.                  

    C. 低的.

5. What can we know from the story?

    A. Bill wants to have fun when he writes.

    B. Bill makes the sign with his new pen.

    C. Bill and his father see a sign about a new pen at the store.

单项选择题