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This is one well-known variety．这是一个有名的品种。
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There are numerous varieties of fish in the lake．这座湖里有无数种类的鱼。
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常可用于a variety of，表示“各式各样的”：
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This shop has a variety of toys．这家店有各式各样的玩具。
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She offered a variety of excuses．她提出了各式各样的借口。
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He had a variety of interests．他有各式各样的兴趣。
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variety前还可有修饰语：
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A great variety of animals survive there．那里存留下来许多品种的动物。
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The library has a wide variety of books．这家图书馆有许许多多种类的书。
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There was a considerable variety of opinions．有相当多不同的意见。
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张道真英语用法（大众珍藏版·第二版） [:1704917919]
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896 Verb
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动词有许多种类，主要有下面这些。
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规则动词与不规则动词：
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这主要从词形上考虑，凡是加-ed方式构成过去式及过去分词的为规则动词，以其他方式构成过去式及过去分词者为不规则动词：
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规则动词 不规则动词 wash (washed, washed) go (went, gone) live (lived, lived) do (did, done) study (studied, studied) come (came, come) 英语中大部分动词都是规则动词。不规则动词只有一百多个，但它们大多是些常用动词，是比较活跃的。因此要学好英语，最好把这些不规则动词的三种形式（如do did done，go went gone，bring brought brought，buy bought bought）都一一背熟。这是掌握各种时态、语态的第一步。同时还要知道-s，-ing，-ed等词尾的加法。这里把几种词尾的加法归纳如下（所用动词都是规则动词）：
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▲ 下面以e结尾的动词，在加-ing时，不必去e，而直接加上去：
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hoe—hoeing
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dye—dyeing
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tiptoe—tiptoeing
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eye—eyeing
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age—ag(e)ing
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▲ 以“单元音＋辅音结尾”的重读音节，加-ing和-ed时，末尾的辅音字母也要双写：
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prefer—preferring—preferred
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