| 单词 | 另一类 |
| 释义 | 〔dive〕Eitherdove or dived is acceptable as the past tense of dive. Dived is actually the earlier form,and the emergence ofdove may appear anomalous in light of the general tendencies of change in English verb forms. Old English had two classes of verbs:strong verbs, whose past tense was indicated by a change in their vowel (a process that survives in such present-day English verbsasdrive/drove or fling/flung ); and weak verbs,whose past was formed with a suffix related to-ed in Modern English (as in present-day Englishlive/lived and move/moved ). Since the Old English period,many verbs have changed from the strong pattern to the weak one;for example, the past tense ofhelp, formerly healp, became helped, and the past tense ofstep, formerly stop, became stepped. Over the years, in fact, the weak pattern has become so prevalentthat we use the termregular to refer to verbs that form their past tense by suffixation of -ed. However, there have occasionally been changes in the other direction:the past tense ofwear, now wore, was once werede ; that ofspit, now spat, was once spitede ; and the development ofdove is an additional example of the small group of verbs that have swum against the historical tide. dove 或 dived 都可用作 dive的过去式形式。 Dived 实际上是早期词形，根据英语动词词形变化的趋势，dove 的出现似乎是不规则的。 古英语有两类动词：强式动词，其过去时形式由元音变化来体现（这一过程还存在于现代英语里，诸如drive/drove 或 fling/flung 等动词中）； 另一类为弱式动词，其过去时态形式由与现代英语-ed 后缀有关 （如现代英语中的live/lived 和 move/moved )。 自古英语时期以来，许多动词由强式变为弱式；例如help 的过去式形式以前为 healp ，已变为 helped ， step 的过去式由以前的 stop 变为 stepped 。 事实上，多年来弱式动词变得非常普遍，我们用术语规则动词 来指那些由加后缀 -ed 来构成过去式形式的动词， 然而偶尔也会向另一方向发生变化：wear 的过去形式现为 wore ，曾为 weared ； spit 的过去式现为 spat ，曾为 spitede ； dove 的发展是反历史潮流而动的一小组动词中的另外一小组动词的例子 〔interbreed〕To breed with another kind or species; hybridize.品种间杂交：一另一类或另一物种杂交；杂交〔commutation〕The substitution of one kind of payment for another.代偿：用一类支付代替另一类 |
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