高中英语时态讲义.pdfVIP

一、 一般现在时的用法 一般现在时态的构成： 主语是 I, we, you, they和名词复数时作谓语的行为动 词用原形。主语是 he, she , it和名词单数时，作谓语的行为动词的词尾变化 如下： 一般情况＋ s 以 s, x, ch, sh 或 o 结尾＋ es 以辅音＋ y 结尾去 y 变 i＋es 2）一般现在时态的肯定句、否定句和疑问句形式（以 be 和 like 为例）： 主语肯定式否定式疑问式 第一、二人称和第三人称复数以及名词复数 I am a student. We/You/ They are students. He/ She is a student. I / We/ You/ They/ like music. Many people like music. I am not a student. We/You/ They are not students. He/ She is not a student. I / We/ You/ They/ don ’t like music. Many people don ’t like music. Are you a student. Are you/ they students? Is he/ she a student? Do you/ they like music? Do many people like music? 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： every …, sometimes, at …, on Sunday I leave home for school at 7 every morning. 2) 客观真理，客观存在，科学事实。 The earth moves around the sun. 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。例如： Columbus proved that the earth is round. 4) 现在时刻的状态、能力、性格、个性。 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。 知识扩展：一般现在时表将来 1）下列动词： come, go, arrive, leave, start, begin, return的一般现在时表将来。这 主要用来表示在时间上已确定或安排好的事情。 The train leaves at six tomorrow morning. 2 ）倒装句，表示动作正在进行，如： Here comes the bus. = The bus is coming. - 1 - 3 ）在时间或条件句中。 When Bill comes (不是 will come), ask him to wait for me. 4 ）在动词 hope, take care that, make sure that等后。 I hope they have a nice time next week. May I help you, sir? Yes, I bought the TV the day before yes