了解和把握句法结构培养程度对中国学习者处理英语复句能力的影响是英语教学质量保障的关键。 本研究采用问卷调查和阅读行为测试两种方法， 选取60名所受不同句法结构培养的中国英语学习者和20 名英国本族语者为样本， 对其在四种罕见英语复句形态结构复杂性、 语义通达性的判断及复句理解准确度方面的处理能力进行研究。 我们发现， 随着句法结构培养水平的提高， 中国学习者在英语复句理解准确度及语义通达性判断方面表现为超过或接近英语本族语者的趋势 ; 而在复句形态结构复杂性判断方面却没有表现出随句法结构培养水平的提高而呈上升的趋势。 此外， 由于句法结构培养水平的不同， 中国学习者在英语复句的处理方法上受句法结构和语义因素的影响也有差异 。

The key to guarantee the quality of English teaching in China is to understand and grasp the effect of the amount of explicit instruction on syntactic grammar on Chinese learners ’ability to deal with English complex sentences． This study is to investigate the relationship between amount of explicit syntactic instruction and the ability to comprehend four types of complex English sentences． ，based on questionnaire and reading comprehension test on 60 Chinese students of English as a L2 with differ- ent amount of explicit syntactic instruction and 20 native-English speakers． It is found that more explicit instruction on syntactic grammar may result in higher accurate comprehension and good performance in plausibility judgment ，which is equivalent to n- ative English speakers ，but poor performance in sentence complexity judgment． In addition ，Chinese students with different a- mount of explicit instruction on syntactic grammar are also different in using syntactic and semantic information in complex L2 English sentence processing． On the basis of these findings ，the theoretical value and implications are discussed at the end of the paper．