| 词汇 | imperfective |
| 释义 | BETA Examples of imperfectiveimperfective isn’t in the Cambridge Dictionary yet. You can help! Therefore, we were less comfortable with predictions in the accuracy of past-imperfective forms. These same children, however, produce the past imperfective with equal accuracy in activities and accomplishments. Grammatical aspect is independent of lexical aspect : telic predicates may appear in either perfective or imperfective aspect (1) as can atelic predicates (2). The preterite's initial structure is supposed to be isomorphic with the imperfective, along the lines of (62) above. An anonymous reviewer points out that with imperfective sentences, all three options are possible. Cross-linguistically, aspect falls into perfective and imperfective categories. Perfective aspect is semantically marked and imperfective is unmarked or neutral. Figure 1 represents the participants' accuracy on imperfective sentences. I believe that the low proficiency learners' performance indicates that they have a contrast in their grammar between perfective and imperfective verbs' inter pretations. In other words, they do not take perfective and imperfective sentences to mean the same thing. This conclusion is supported by the learners' accuracy being higher than chance on both perfective and imperfective sentences. At the same time, the expressions take on the imperfective property-reading characteristic of middles. We can see this quite clearly with posture verbs + sit, stand, and lie + which can function as either perfectives or imperfectives. Performance with the imperfective adverbial sentences (containing in the middle of and partly done) was more similar to the test sentence performance. The stem ' feed ' occurs in final position and its form indicates imperfective aspect. Results from the present study, however, do not clearly support either of these prototype hierarchies for the past imperfective. For example, need in example (21) maps to: present, 0, imperfective, active, affirmative. |
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