高中英语 Module 1《British and American English-Grammar》学案4 外研版必修5

高二英语必修五 Module 1 British and American English 导学案GRAMMAR学习目标 Learning aims: Recognize some tenses: The Present Indefinite, The Present Continuous, The Present Perfect and so on.学习重点 Learning Important：Master the basic rules of several sorts o f. For instance: The Present Perfect, the Present Indefinite, The present continuous.知识链接 Knowledge links: Other usages of three tenses学法指导 Guidance of learning: Learn them by doing some exercises or drillings.探究过程 Processes of exploring:【一般现在时】一般现在时表示现在经常反复发生的动作、存在的状态或习惯性的动作的时态。构成一般现在时用行为动词的原形，但第三人称单数作主语时，动词的词尾要加-s。（一般的动词词尾+s。以 sh/ch/s/x 结尾的词+es.以辅音字母+y 结尾的把 y 变成 i，+es。辅音字母+o 结尾的+es.) 【用法】1) 经常性或习惯性的动作，常与表示频度的时间状语连用。 时间状语 always, usually, every morning /night/evening/day/week, ,often, sometimes, from time to time, twice a week ,seldom, never. I leave home for school at 7 every morning. 2) 客观真理，客观存在，科学事实。 ⑴ The earth moves around the sun. ⑵Shanghai lies in the east of China. 3) 表示格言或警句中。Pride goes before a fall. 骄者必败。 注意★：此用法如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。Columbus proved that the earth is round.. 4) 现在时刻的状态、能力、性格、个性。 I don't want so much. Ann Wang writes good English but does not speak well. 比较：Now I put the sugar in the cup. I am doing my homework now. 第一句用一般现在时，用于操作演示或指导说明的示范性动作，表示言行的瞬间动作。再如：Now watch me, I switch on the current and stand back. 第二句中的 now 是进行时的标志，表示正在进行的动作的客观状况，所以后句用一般现在时。 5).表示按规定、计划或时间表将要发生的事。 He starts next week. 他下个星期出发。 We leave very soon. 我们很快就...