阅读理解。

       地上有一块砂糖。一只红蚂蚁爬到砂糖中，大口大口地吃起来。过了一会儿，它可能吃饱了，嘴里含着一口往回走。路上碰到两只蚂蚁，于是它把头和它们俩碰在一起。一会儿那两只蚂蚁笔直地朝着砂糖的地方奔去。蚂蚁继续往前走，它又碰到几只蚂蚁，就把头分别和它们一个个碰到一起。一会儿，那几只蚂蚁也飞快地朝有砂糖的地方爬去。红蚂蚁接着往回走，没过多长时间，只见一路上长长的蚂蚁队伍整齐地向砂糖爬来。    

       蚂蚁是怎么知道砂糖在哪儿的呢？原来它们是通过一次次相碰，                                               。 

1．在短文结尾的横线上填上正确答案。

      A．用糖的香味相互传递信息的。  

      B．用红蚂蚁的颜色相互传递信息的。  

     C．用触角相互传递信息的。

2．从蚂蚁身上，你还发现哪些奥秘？  

按要求变化下列各句，每空限填1词，缩写算1个词。

1. Please take the second turning on the left. (改为否定句)

    ________ ________ the second turning on the left, please.

2. We are going to meet outside the school gate. (就划线部分提问)

    _______ are you ________ to meet?

3. The woman near the window is a cleaner. (就划线部分提问)

    ________ _______ the woman near the window?

4. Did the boy play football after school? (改为同义句)

    Did the boy play football after school _______ ________?

5. There was an English class yesterday. (改为反意疑问句)

    There was an English class yesterday, _______ ________ ?