1.
Effects of linguistic factors on present perfect use;
语言因素对英语现在完成时使用的影响
2.
Study of Contextual Support in Learning L2 Forms: EFL Learning of the English Present Perfect;
语境支持与二语形式学习——中国学生英语现在完成时习得研究
3.
A Research on the Influences of Mongolian Tenses on English Present Perfect Tense Learning among Mongolian College Students;
蒙古语时态对蒙古族大学生学习英语现在完成时的影响研究
4.
The Influence of the Characteristics of Chinese Temporality on the Chinese-speaking Learners Acquisition of English Present Perfect Tense;
论汉语时体特征对中国学生习得英语现在完成时的影响
5.
present perfect
ph.1. 【语】现在完成时,2. 【语】现在完成时的
6.
There is no exactly equivalent French tense to the present perfect tense in English.
法语里没有和英语中的现在完成时完全对应的时态。
7.
Error Analysis of the Present Perfect in Chinese Students English Writings;
中国学生英语写作中的现在完成时错误分析
8.
A Comparative Study of Features on Learning English Present Perfect by Monolinguals and Bilinguals
单、双语人学习英语现在完成体的特征对比分析
9.
A Semantic Study of the English Simple Past Tense and the Present Perfect;
一般过去时和现在完成体的语义研究
10.
A bridge of the past and present-Remarks on the research into the English perfect construction;
过去与现在的联结——英语完成式研究述评
11.
The meaning character of the present tense in the present perfect tense;
浅谈现在完成体和现时相关的语义特征
12.
Rewrite the following sentences using the Present Perfect Passive Voice.
用现在完成时的被动语态改写下列句子。
13.
The Effects of Lexical Aspect and Narrative Structure on the Present Perfect Use-Based on Corpus;
基于语料库的情状体和语篇结构对现在完成时使用的影响
14.
Study these sentences. Pay close attention to the words in italics.
仔细地研究这些例句，特别注意现在完成时句子中表示时间的状语。
15.
Type Ⅱ of Perfective Aspect?;
现代英语有第二完成体吗——与《新编英语语法教程》商榷
16.
A Study of English Simple Present Tense in Relation to Fuzzy Concept of Present Time;
“现在”概念的模糊性与英语“一般现在时”
17.
The Effects of Chinese Perfective Aspect Marker Le on the Simple Past Use in English Interlanguage;
汉语完成体标记“了”对英语过渡语中使用一般过去时的影响
18.
`I have finished' is an example of the present perfect.
“我已经完成了”是现在完成时态的一个例句。