To understand the sentence pattern of each unit and be able to make sentences with the patterns , which include simple present tense , present continuing tense and simple past tense 掌握本学年40个目标句型,掌握一般现在时,现在进行时,以及一般过去时态,并能运用写句子,正确表达意思
The paper amends the calculation method of both diffusion coefficient and inducing coefficient and thus makes the coefficients more meaningful and clarifies the economic meaning of two coefficients 评论：此文摘只有一句话，由两个分句组成，用的是一般现在时，两个分句均用的是主动语态，表明了文章的目的和意义，值得借鉴。
The proposal of 0 simple present tense not only adheres to the tense - time relation , but also involves sound and sufficient support , it has clear standards for its identification , further classification , and practical significance 提出“ 0时间一般现在时” ，不仅符合上述分类的基本线索，还有充分的依据、明确的辨别标准、进一步细分的路径和重要的现实意义。
The categorization of the usages of the simple present tense mainly rests on their relation with time , but the " objective phenomenon " is only loosely grouped as fact , inconsistent with the tense - time categorization 对一般现在时的用法进行子类分析时，主要线索是被研究对象与时间的关系，但是处理“客观事实”时，则以现象替代了这种关系，出现了明显的不一致。
The pragmatic connotations in some grammatical rules of english are explored by making an analysis with the examples of those grammatical categories , such as the present indefinite , the past indefinite , the present continuous , the disjunctive question , the inversion , the passive voice and the cleft sentence 该文通过实例，对动词的一般现在时、一般过去时、现在进行时以及反意疑问句、倒装句、被动语态和强调句型等传统语法规则中的语用因素进行分析，揭示语法形式背后所蕴含的语用信息。
