1.【2022·全国新课标I】依据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。 Secret codes (密码)keep messages private。Banks, companies, and government agencies use secret codes in doing business, especially when information is sent by computer.
People have used secret codes for thousands of years. 36 Code breaking never lags(落后) far behind code making. The science of creating and reading coded messages is called cryptography.
电台指南 There are three main types of cryptography. 37 For example, the first letters of “My elephant eats too many eels” Spell out the hidden message “Meet me.”
38 You might represent each letter with a number, For example, Let’s number the letters of the alphabet, in order, from 1 to 26. If we substitute a number for each letter, the message “Meet me” would read “13 5 20 13 5.”
A code uses symbols to replace words, phrases, or sentences. To read the message of a real code, you must have a code book. 39 For example “bridge“ might stand for “meet”相对介电常数 and “out” might stand for “me.” The message “bridge out” would actually mean “Meet me.北京和颐酒店女生遇袭”40 However, it is also hard to keep a code book secret for long. So codes must be changed frequently. A.It is very hard to break a code without the code book.
B.In any language, some letters are used more than others.
菲达协同
C.Only people who know the keyword can read the message.
D.As long as there have been codes, people have tried to break them.
E.You can hide a message by having the first letters of each word spell it out.
F.With a code book, you might write down words that would stand for other words.
G.Another way to hide a message is to use symbols to stand for specific letters of the alphabet.
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2.【2022·全国新课标II】依据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
A garden that’s just right for you
解放军理工大学工程兵工程学院Have you ever visited a garden that seemed just right for you, where the atmosphere of the garden appeared to total more than the sum(总和) of its parts? 16 . But it doesn’t happen by accident. It starts with looking inside yourself and understanding who you are with respect to the natural world and how you approach the gardening process.
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Some people may think that a garden is no more than plants, flowers, patterns and masses of color. Others are concerned about using gardening methods that require less water and fewer fertilizers(肥料). 18 . However, there are a number of other reasons that might explain why you want to garden. One of them comes from our earliest years.
●Recall(回忆)your childhood memories
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