专题20.阅读表达（成都专用）-2022届中考英语真题分类精解与解题技巧（人教新目标）

阅读表达（成都专用） 一 四川省成都市2021年中考英语 A. 补全短文 根据短文内容, 从短文后的A~F选项中, 选出5 个适当的选项补全短文。（共5小题;每小题1分, 计5分） The invention of barcodes（条形码）is based on a very simple idea. We only need to give each product a specific number and print it. ___71___ It can simply print the number itself. But this can cause problems. For example, an unclearly printed “seven” could look like a “one” to a computer. It’s also true for “three” and “eight”. ___72___ We need a better way of printing numbers so that they can be read correctly at high speeds. That’s the problem barcodes solve. Each number in a barcode is shown by seven blocks of the same size. ___73___ For example, the number “one” is shown in turn by two white stripes（条）, two black stripes, two white stripes, and one black stripe.___74___ A barcode includes different parts and each one provides a specific meaning. The first part of a barcode tells you the country where the product was made. For example, 690—692 is the barcode for China. ___75___ The final part is about the product itself. This is how barcodes work. A. Then computers can read it directly. B. All information can be shown by barcodes. C. The next part tells you who produced the product. D. And “nine” looks similar to “six” if you turn it upside down. E. Even if you turn it upside down, it isn’t similar to any other number. F. These are colored either black or white to show the number zero to nine. 【分析】本文主要介绍了条形码的相关知识。 71【答案】A根据“We only need to give each product a specific number and print it.”可知，上文讲述了如何使用条形码，与其对应的应该是选项A“然后计算机可以直接读取。”介绍接下来的步骤。故选A。 72【答案】D根据“For example, an unclearly printed ‘seven’ could look like a ‘one’ to a computer. It’s also true for ‘three’ and ‘eight’. ”可知，上文介绍仅仅打印数字会存在数字混淆的问题，选项D“如果你把它翻过来，‘九’看起来和‘六’很像。”符合语境。故选D。 73【答案】F根据“For example, the number ‘one’ is shown in turn by two white stripes, two black stripes, two white stripes, and one black stripe.”可知，数字“1”可以用白色和黑色的条来表示，选项F“它们被涂成黑色或白色来表示数字0到9。”符合语境。故选F。 74【答案】E根据“That’s the problem barcodes solve.”以及“For