(
课件网) Once upon a Time UNIT 8 Grammar Focus Do you remember Peter’s favourite story Listen to the conversation and fill in the blanks. Once a lion _____ a mouse. The mouse _____ afraid. He _____, “Please let me go! One day I will help you!” The lion _____ and _____ the mouse go. Later, a hunter _____ the lion in a net. The mouse _____ the lion then. He _____ through the net and _____ the lion free! caught was said laughed let caught helped bit set What tense is used in this story the simple past tense 一般过去时 我们讲故事时常用到一般过去时。 3a Read the sentences. What tenses do they use P61 the simple past tense the simple present tense When do you use each tense We use the simple present tense to talk about general truths(一般事实). We use the simple past tense to talk about completed actions(已完成的动作) that happened before now. ① 肯定句: ② 否定句: ③ 一般疑问句: 肯定回答: 否定回答: ④特殊疑问句: 主语 + was / were + 其他. 主语 + was / were + not + 其他. Was / Were + 主语 + 其他 Yes, 主语 + was / were. No, 主语 + wasn't / weren't. 疑问词 + was / were + 主语 + 其他 ① 肯定句: ② 否定句: ③ 一般疑问句: 肯定回答: 否定回答: ④特殊疑问句: 主语 + 动词过去式 + 其他. 主语 + didn't + 动词原形 + 其他. Did + 主语 + 动词原形 +其他 Yes, 主语 + did. No, 主语 + didn't. 疑问词 + did + 主语 + 动词原形 + 其他 ① 肯定句: ② 否定句: ③ 一般疑问句: 肯定回答: 否定回答: ④特殊疑问句: 主语 + am / is / are + 其他. 主语 + am / is / are + not + 其他. Am / Is / Are + 主语 + 其他 Yes, 主语 + am / is / are. No, 主语 + am / is / are + not. 疑问词 + am / is / are + 主语 + 其他 ① 肯定句: ② 否定句: ③ 一般疑问句: 肯定回答: 否定回答: ④特殊疑问句: 主语 + 实义动词 + 其他. 主语 + don't (doesn't) + 动词原形 + 其他. Do (Does) + 主语 + 动词原形 +其他 Yes, 主语 + do / does. No, 主语 + don’t / doesn’t. 疑问词 + do / does + 主语 + 动词原形 + 其他 一般现在时和一般过去时有哪些区别呢？ 区别 一般现在时 一般过去时 概念 时间状语 动词形式 表示经常发生的或习惯性的动作或现在的状态 表示过去某个时间发生的动作或存在的状态 always, usually, often, sometimes, never, every day/week/month, … yesterday, last week/month, ago, just now, … 1. 主语是第一、二人称单数和复数以及第三人称复数时，动词用原形。 2. 主语是第三人称单数时，动词要变成第三人称单数形式，一般在动词原形后加-s或-es 1. 一般动词在词尾加-ed。 2. 以不发音的e结尾的动词，直接加-d。 3. 以辅音字母加y结尾的动词，变y为i，再加-ed。 4. 以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加-ed。 5. 不规则变化的动词需要特殊记忆。 3b Choose the correct forms of the verbs. 1. When I am / was a child, my favourite book is / was Peter Rabbit. 2. I usually tell / told funny stories to my friends. But I tell / told them a sad story yesterday, and they cried. 3. The mouse asks / asked the lion not to kill him. He promises / promised to help the lion, and the lion let him go. 4. The two brothers lie / lied to the emperor, but the emperor didn’t know that and buy / bought their clothes. 5 ... ...
