问题 选择题

300年前,意大利科学家做了这样一个实验:在房间里挂了许多铃铛,然后让蝙蝠在房间中自由飞翔.第一次未对蝙蝠有任何限制,铃铛未响;第二次蒙住蝙蝠的眼睛,铃铛也未响;第三次塞住蝙蝠的耳朵,房间中的铃铛响了.下列问题不是该实验所研究的是(  )

A.蝙蝠飞行靠什么躲避障碍物的

B.眼睛对蝙蝠飞行是否起作用

C.耳朵对蝙蝠飞行是否起作用

D.铃铛是怎样发声的

答案

A、通过第一次、第二次和第三次实验可以研究蝙蝠飞行靠什么躲避障碍物的.故A选项是该实验所研究的.

B、通过第一次和第二次的实验可以研究眼睛对蝙蝠飞行是否起作用.故B选项是该实验所研究的.

C、通过第一次和第三次实验的可以研究耳朵对蝙蝠飞行是否起作用.故C选项是该实验所研究的.

D、铃铛是怎样发声的本题并未涉及,故D选项不是该实验所研究的.

故选D.

阅读理解
任务型阅读。根据短文内容,埴写表格。
     Here are some accidents which often happen to children:
     ◆ Scald (烫伤)-Small children don't understand that hot water and hot drinks can be dangerous. Adults
often forget the danger, too. It only takes a cup of tea or coffee, or a bath that's too hot to scald a child badly.
     ◆Falls-Children of all ages fall and hurt themselves from time to time. For babies, the danger is rolling off
the edge of something, like beds, chairs or tables. For babies of two to four, climbing on furniture doesn't
seem dangerous. It's just fun. But it's very easy for them to fall off a piece of furniture, down the stairs, out
of a window or off a balcony (阳台).
     ◆Burns-Many children die in house fires and more are badly burnt. A cigarette (香烟) can easily start a
fire. A child can also be burnt by a hot iron or matches.
     ◆Cuts-Class causes the most serious cuts. So do broken bottles, doors or windows.
1. Small-children don't understand:
    ◆ Hot water and hot drinks are 1_____ for them.
2. What often happen to children and babies?
    ◆ Children of all ages may fall and 2_____ again and again.
    ◆ For babies of two to four, it's dangerous to 3_____ on a piece of furniture for fun.
3. Why are many children easily burnt?
    ◆ Because 4_____ can easily start a house fire.
    ◆ A hot iron or 5_____ can make children burnt.
4. What causes cuts?
    ◆ The most serious cuts are from 86 and broken bottles, doors or windows.
单项选择题