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。

　　 ⑴The 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