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问题 填空题

据中新社报道：2012年我国粮食产量将达到570000000000千克，用科学记数法表示这个粮食产量为______千克．

答案

将570000000000用科学记数法表示为：5.7×1011．

故答案为：5.7×1011．

填空题

已知a﹑b为正整数，a=b-2005，若关于x方程x2-ax+b=0有正整数解，则a的最小值是______．
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写作题

第五部分读写任务（满分25分）

请阅读下面的短文，然后按照要求写一篇150词左右的英语短文。

Many people believe that in the future computers will be used in lots of everyday activities .It is thought that we won’t go shopping because many goods are available on the Internet .There will be no more books because all books will be available from electronic libraries .The Internet will be used to book holidays, rent films and order food.  Most telephone calls will be made over the Internet as well .Some people are excited about these new developments .Others , however, do not think that computers will replace our present ways of shopping and communicating .

Is Internet shopping as much fun as traditional shopping ? Many people say it is not .It is fun to go into shops and look as good in person . It is also unlikely that many people will want to read large texts on our computers because paper books will possibly be more user- friendly .Maybe , computers won’t change these habits.

【写作内容】

1．以约30个词概括这段短文的内容；

2．然后以约120个词表达你对“网上购物”这一现象的观点。内容包括：

（1）叙述你身边的同学对网上购物的看法。

（2）你喜欢的购物方式（传统的购物方式还是网上购物）?

（3）结合自己的生活例子说明你喜欢的理由。

【写作要求】

1.作文中可使用自己的亲身经历或虚构的故事，也可以参照阅读材料的内容但不得直接引用原文中的句子。

2.作文中不能出现真实姓名和学校名称。

【评分标准】

概括准确，语言规范，内容合适，篇章连贯。
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