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英语比较级和最高级英文版PPT

In English, we use different forms of adjectives and adverbs to express compa...
In English, we use different forms of adjectives and adverbs to express comparisons. The two main types of comparisons are the comparative degree and the superlative degree.The Comparative DegreeThe comparative degree is used to compare two things or people. It is formed by adding "-er" to the end of an adjective or adverb. For example:TallerFasterHappierIf the adjective or adverb ends in "-y," we usually change the "y" to "i" and then add "-er." For example:Grayer (not "grayer")Friendlier (not "friendyer")Some adjectives and adverbs form their comparative degree by using "more" before the adjective or adverb. For example:More beautifulMore carefullyWhen we compare two things or people using the comparative degree, we use the structure "A + be verb + adjective/adverb + than + B." For example:I am taller than my sisterHe runs faster than his friendsThe Superlative DegreeThe superlative degree is used to compare three or more things or people. It is formed by adding "-est" to the end of an adjective or adverb. For example:TallestFastestHappiestIf the adjective or adverb ends in "-y," we follow the same rule as in the comparative degree: change the "y" to "i" and then add "-est." For example:Grayest (not "grayest")Friendliest (not "friendyest")Some adjectives and adverbs form their superlative degree by using "most" before the adjective or adverb. For example:Most beautifulMost carefullyWhen we compare three or more things or people using the superlative degree, we use the structure "A + be verb + the + adjective/adverb + est" or "A + be verb + the most + adjective/adverb." For example:She is the tallest girl in her classHe is the most intelligent student in his schoolIrregular FormsSome adjectives and adverbs have irregular forms in the comparative and superlative degrees. These forms cannot be formed by simply adding "-er" or "-est." Instead, they have special forms that must be learned separately. For example:Goodbetter, bestBadworse, worstFarfarther, farthest or further, furthestLittleless, leastManymore, mostUsing "Than" and "The"It is important to note that when we use the comparative degree, we usually use the word "than" to compare two things or people. However, when we use the superlative degree, we usually use the word "the" before the adjective or adverb to indicate that we are comparing three or more things or people.In summary, the comparative degree is used to compare two things or people, while the superlative degree is used to compare three or more things or people. Both degrees are formed by adding suffixes to the end of adjectives and adverbs, but some adjectives and adverbs have irregular forms that must be learned separately. Finally, it is important to use the correct structure when making comparisons in English.