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问题 多项选择题

地震后被埋压住怎么办?

A、如果可以自救，则扒开掩埋物，使身体脱出，摆脱困境

B、如果无法自行脱困，争取寻找或扩大可呼吸的空间

C、若已骨折，不要轻易移动，应等待救援

D、尽力向外抽拉身体

答案

参考答案：A, B, C

阅读理解

A bus stops（停靠） at a small bus stop（公交站）. A man is hungry（饥饿） and he wants to buy some cakes. It’s raining(下雨) hard. He doesn’t want to go out in the rain. He sees a boy. 'Come here, boy!' he cries（喊）. 'Do you know how much（多少钱） the cakes are?' The boy says yes. The man gives the boy four dollars（美元） and asks him to buy two cakes. 'One is for you and one is for me.' Three minutes later, the boy comes back. He’s eating a cake. He gives the man two dollars and says, 'Sorry, there is only one cake left（剩下）.'

小题1:Where is the man?

A．He’s near the bus.

B．He is at home.

C．He’s on the bus.

D．He is in the car.小题2:The man doesn’t want to go out because__________.

A．he is tired

B．he doesn’t like rain

C．he is hungry

D．it’s raining hard小题3:How many cakes does the boy buy?

A．One

B．Two

C．Three

D．Four小题4:How much are they if(如果) we buy five cakes?

A．five dollars

B．Four dollars

C．Ten dollars

D．Fifteen dollars小题5:What’s the result (结果)?

A．The man eats the cake.

B．The boy eats the cake.

C．The boy doesn’t eat the cake.

D．The boy and the man both eat the cakes.
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填空题

根据下列条件，写出有关反应的化学方程式：

（1）有单质和化合物参加的化合反应______；  

（2）有三种不同类别的物质生成的分解反应______；

（3）有单质铜参加的置换反应______；        

（4）有酸生成的复分解反应______；

（5）有相对分子质量最小的氧化物生成的还原反应______．
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