完成下列各题

你是吴芳，申请到美国加州大学学习。你成绩优异，对数学尤感兴趣，是天津市中学生奥林匹克数学俱乐部成员。你希望中学毕业后能到该校进一步在这方面深造，最后要求寄给你一份申请表格和有关材料。

生词：加州大学The University of California  

申请表application form

要求：按书信格式写，词数100左右。

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完成下列各题

根据中文提示，将对话中缺少的内容写上。这些句子必须符合英语表达习惯。打句号的地方，用陈述句；打问号的地方，用疑问句。提示：Mike给Susan打电话，问她周六晚上是否有事情，他想约她去一个新开的迪斯科舞厅看看。Susan周六晚没什么特别的事并认为这是一个好主意。Mike建议去舞厅跳舞之前吃意大利馅饼(pizza)。最后Mike告诉Susan他七点去她家接她。

Susan：Hell0．

Mike：Hi，Susan．It’s：me，Mike．

Susan：Oh，hi，Mike． 51 ？

Mike：Oh，not bad．Say are you doing anything Saturday night?

Susan：No，52．Why?

Mike：Well，do you feel like going to that new disco?

Susan：Oh。thats 53 ．

Mike：Great．What about having a pizza first?

Susan：Sure，why not? Where do you want to meet?

Mike：Ill 54 ．

Susan：OK．What time?

Mike：55 ?

Susan：Fine．Well, see you at seven．

Mike：OK．See you．

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In making containers sand is added to clay______．

Clay l3an often be found________．

The article is most probably from_______．

完成下列各题

D

Clay is important because it is used to make containers of all kinds．Workers add water to soften clay．This makes it．easier to form. into shapes by machine．Then it is heated to a very high temperature．The result is a container that．will last for many years．

In many countries，clay was formed from volcanoes(火山>．This．kind of clay usually contains many minerals(矿物质)．So the fires to make containers from volcanic clay must be hotter that those used for non—volcanic clay．The fires may be as hot，as 1400℃．The high temperature should not be reached too fast SO that the containers can be dried slowly．You can add some materials to clay to gain desired results．For example，you can add sand to prevent tiny breaks or lines from forming on the surface of the final product．But you should not use sand from the coasts of oceans．Instead，you should use sand from rivers or other areas．

Clay often exists in fields covered with some water．The clay will be found about one meter below the ground．．River banks often also have clay about one meter or less under the surface．Clay is very shiny when it is wet．You can also take some of the material and add enough water to it．Then press it in your．hands until it is about the size of an egg．It is probably clay if it holds together when you stop pressing．

What’s the difference between volcanic clay and non-volcanic day?