牛津深圳版八年级上册 Unit5现在完成时语法 学案

8A Unit 5语法专项（Present Perfect Tense现在完成时） 课文句型： 1. I’ve learnt to use chopsticks, and they’re teaching me a little Chinese. 2. It’s been a fantastic experience so far. 3. We’ve already learnt a lot about Chinese culture and history. 4. The teachers have introduced us to Chinese painting as well. 5. We’ve also tried to paint some pictures ourselves. 6. I haven’t had much success yet, but I’ll keep trying. 7. I’ve made many new friends. 一、现在完成时用法： ·与现在相关。描述过去发生的事，但对现在有影响。 ·基本结构：have/ has + past participle (过去分词） 过去分词的形式 。regular verbs: -ed eg. listened 。verbs ending in -e: -d eg. changed 。verbs ending in -y: -y-- -ied eg. carried 。verbs ending in a consonant after a short vowel: double the consonant eg. fit-fitted; stop-stopped 。irregular verbs 试一试： 写出下列单词的过去式和过去分词listen/buy/play/go/hope/take/travel/keep/hurry/read/meet/do/send/spend/see/think ________________________________________________________________________________________________ ·使用句型： Positive I/You/We/They have/ 've read that book. He/ She/ It has/ 's been to London. Negative I/You/We/They have not/ haven't found it. He/ She/It has not/ hasn't done that. Questions Have you met my brother? Has she lived in New York? Short answers Yes, she has. No, they haven't. 二、already, yet, ever and never，just都表示“到现在为止的某个/任意时间”的词。用来谈论已经完成或未完成的事件。 already “已经”，一般用于肯定句。 We've already met. ** already 用在疑问句中时表示惊奇。 Have he done his homework already? He seldom does his homework. yet “还未”，用于疑问句和否定句。在疑问句中用来询问某事是否已经发生，在否定句中用来表示某事尚未发生但 有可能发生。 Have you met yet? We haven't met yet. ever “在任何时候；从来；曾经”，用于疑问句或否定句。 Have you ever met? never “从不”，表示否定。 We've never met. just “刚刚”，表示片刻之前刚完成某件事。I've just got a text message from her. 练一练：用already, yet, never, ever, just 填空 1. -- Has Dan arrived __________? -- No, he's __________ phoned to say he can't come.. 2. Rachel has been out all day, but I have __________ managed to call her