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问题 填空题

一条山路的坡角为30度，小张沿这条山路从下往上走了100米，那么他在竖直方向上上升的高度是______米．

答案

由于山路的坡角为30度，则坡角的正弦值sinα=

1
2
，

∴他在竖直方向上上升的高度h=100×sinα=50（米）．

阅读理解

阅读短文，根据短文内容，选择最佳选项。

       The students were having their chemistry class. Miss Li was telling the children what water was like. After

that, she asked her students. "What's water?" No one spoke for a few minutes. Miss Li asked again, "Why don't

you answer my question? Didn't tell you what water is like ?" 

       Just then a boy put up his hand and said, "Miss Li, you told us that water has no colour and no smell. But

where to find such kind of water? The water in the river behind my house is always black and it has a bad

smell." Most of the children agreed with him. 

      "I'm sorry, children." said the teacher, "Our water is getting dirtier and dirtier. That's a problem."

1. Miss Li was telling the children what _______ was like. [ ]

A. water

B. air

C. earth

D. weather

2. Most of the children _______ the boy.[ ]

A. agreed with

B. wrote to

C. heard from

D. sent for

3. The water in the river has colour and smell because it is getting ______. [ ]

A. more and more

B. less and less

C. cleaner and cleaner

D. dirtier and dirtier

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单项选择题

突然跌倒，神志不清，抽搐吐涎，伴尖叫与二便失禁，舌质红，苔白腻，脉弦滑有力。可诊断为（）

A.中风病风痰阻络证

B.痫病风痰闭阻证

C.郁病痰迷心窍证

D.厥证气厥实证

E.癫病痰气郁结证
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