问题 选择题

如图所示,小刚发现,学校的欢迎展牌经常被风吹倒,于是他提出的一些防止展牌被吹倒的措施,你认为合适的是(  )

A.将展牌的支架做得更高些

B.在展牌的中空支架的下部灌些沙子

C.选用密度小的材料来做展牌,使展牌更轻些

D.将展牌支架之间的夹角做得更大一些

答案

答案:B

题目分析:A、将展牌的支架做得高一些,重心会升高,稳定性差.不符合题意.

B、在展牌的中空支架的下部灌些沙子可以降低重心,增加其稳定性.符合题意.

C、展牌密度越小,质量越小,重力越小,稳定性越差.不符合题意.

D、将展牌支架之间的夹角做得大些,会使展牌的重心升高,稳定性差.不符合题意.

所以选B.

点评:本题考查稳度和提高稳度的方法,降低重心会增强其稳定性,主要从重心变化上进行分析

填空题
写作题

读写任务

请根据以下任务说明和写作要求, 写一篇150词左右的英语短文

     今天, 你在杂志上读了下面这篇文章, 你很有感触, 于是打算写一篇题为“阅读使我……”的英语短文, 与这篇文章一并发表在校报上。

     Reading is a good habit, but the problem is, there’s too much to read these days, and too little time to

read every word of it. There are hundreds of skills to help you read more in less time. Here are two skills

that I think are especially good.

     Preview-if it’s long and hard. Previewing is especially useful for getting a general idea of heavy reading

like long magazine articles and business reports.

     Here’s how to preview.

     ● Read the first two paragraphs and the last two paragraphs carefully.

     ● Then read only the first sentence of the other paragraphs.

     Previewing doesn’t give you all the details. It keeps you from spending time on things you don’t really

want-or need-to read.

     Skim-if it’s short and simple. Skimming is a good way to get a general idea of light reading.

-like popular magazines or the sports and entertainment of your daily paper.

     Here’s how to skim.

    ● Get your eyes to move fast. Sweep them across each line.

    ● Pick up only a few key words in each line.

     Everybody skims differently. You and I may not pick up the same words when we skim the same

piece, but we’ll get a similar idea of what it’s all about.

【写作内容】

1. 以约30个词概括你所读的这篇文章的大意;

2. 以约120个词谈谈这篇文章给你的启发, 内容主要包括:

(1)结合你的实际, 谈谈阅读给你带来什么具体的裨益;

(2)向读者推荐一、两本好书。

【写作要求】

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的句子。标题自定。

【评分标准】

概括准确, 语言规范, 内容合适, 篇章连贯。

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