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问题 选择题

歌手那英在歌曲中唱道“雾里看花，水中望月”，其中雾属于下列分散系中(    )

A．溶液

B．悬浊液

C．胶体

D．乳浊液

答案

答案：C

题目分析：雾是由小水滴凝结灰尘而成的，是胶体，可以发生丁达尔现象。

点评：本题考查学生对教材的掌握程度，可以根据所学知识进行回答，较简单。

阅读理解

中国有许多传统节日，你最喜欢哪个节日呢？阅读对话，选择正确答案。

A:  Where are you going today, Miss Li?

B:  I'm going to buy some mooncakes(月饼).  Tomorrow is Mid-Autumn

     Day.  This day    is a special holiday for Chinese.  We will invite our

     families and friends to cat moon-cakes.

A:  What's the mooncake?

B:  It's a kind of cake.  Because it's round and looks like a full moon, people call it    mooncake. There are many different kinds of mooncakes.

1.  What's the name of Mid-Autumn Day in Chinese?

          A.端午节  

          B.中秋节  

          C.重阳节    

          D.清明节

                                                                                                            [ ]

2.  Mid-Autumn Day is a(n) ___________ holiday. 

        A. Chinese

        B. western

        C. eastern 

        D. English

                                                                                                            [ ]

 3. The mooncakes are _________.  

         A. the same

         B. different

         C.  not a kind of cake

         D.  a kind of bread

                                                                                                             [ ]

4. Chinese people always _________ to eat mooncakes.

         A.  stay at home

         B.  invite others

         C.  don't like

        D.  go home

                                                                                                             [ ]

5. Mooncakes are always __________. 

       A. square

       B. triangle

       C. round

       D. line

                                                                                                              [ ]
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问答题 简答题

接触角是什么？
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