Unit 6 Nurturing Nature Using language 语法课件-2024-2025学年高中英语外研版（2019）选择性必修第一册

present perfect continuous tense Thank You! 昨天我读了一本书。 我已经读完了一本书。 早上八点，我正在读书。 现在，我正在读书。 read read read read 现在完成时have/has done 过去进行时was/were doing 现在进行时am/is/are doing 一般过去时 did have read was reading am reading read Thank You! 从早上八点到现在，我一直在读书。 这一个星期，我每天中午都读书。 Thank You! present perfect continuous tense past now 8：00 10：45 time Thank You! 结构 have/has done + be doing have/has been doing not Thank You! 从早上八点到现在，我一直在读书。 这一个星期，我每天中午都读书。 现在完成进行时have/has been doing have been reading Thank You! 结构 have/has been doing not Thank You! 用法 1.特点：延续 重复 感情 刚刚结束 2.不适用于：态情觉短有 3.与现在完成时区别 Thank You! 延续 1.表示从过去开始一直延续到现在的动作，该动作在说话时仍在继续进行，可能还要继续下去。 China has been making paper for two thousand years. 中国有2000年的造纸历史。 I have been learning English since three years ago. 三年以来我一直在学英语。 Thank You! 重复 2.表示一个重复的动作： I have been making this mistake several times. 我犯同一个错误好几次了。 Thank You! 感情 3.带有某种感情色彩： Recently too much has been happening these days. 这几天发生的事情太多了。 (疲惫的感情色彩) I'm glad the lecture is finished! I've been sitting for three hours. 很高兴演讲终于结束了，我已经整整坐了三个小时了。 (强调坐的时间长) Thank You! 刚刚结束 4.表示在说话时刻之前到现在刚刚结束的动作。 We have been waiting for you for half an hour. 我们已经等你半小时了。 Thank You! 不可用 状态：be, have, exist, stay, remain 情感：like, love, hate, want, wish 感觉：see, hear, feel, sound, seem 短暂：finish, marry, get up, come, go 拥有或从属： possess, own, consist, belong 态情觉短有 Thank You! 现在完成进行时 现在完成时 I have been thinking it over. 我一直在考虑这件事。 I have thought it over. 我已经考虑过这件事了。 Have you been meeting him recently? 你最近经常见到他吗？ Have you met him recently? 你最近见到他了吗？ My father has always been losing his keys. 我父亲老是弄丢自己的钥匙。(含责怪或无奈之意) My father has lost his keys. 我父亲把钥匙丢了。 (陈述事实) 延续 结果 重复 不重复 有感情色彩 无感情色彩 Thank You! 强调延续 动作重复 感情色彩 强调结果 × 陈述事实 与现在完成时区别 现在完成进行时 现在完成时 Thank You! 与现在完成时区别 (1) I __________________________ (wait) for you for two hours. 我等了你两个小时。（说明一个事实） (2) I __________________________ (wait) for you for two hours. 我等你已经有两个小时了。（可能表示不满） (3) He __________________________ (write) a letter. 他写了一封信。（已经写好） (4) He __________________________ (write) a letter. 他一直在写一封信。（仍然在写） have waited have been waiting has written has been writing Thank You! 1. The first use of atomic weapons was in 1945, and their power _______________(increase) enormously ever since. 2. Years ago we didn’t know this, but recent science ___________(show) that people who don’t sleep well get ill easily. 3. —Look! Somebody ___________(clean) the sofa. —Well, it wasn’t me. I didn’t do it. 4. —How long ___________ you ___________(work) in the factory? —Since 1990. 5. It is the most instructive lecture that I ________________(attend) since I came to this school. Fill in the blanks with the correct tense. has been increasing has shown has cleaned have been working have attended Thank You! 6. —Do you regret not having gone abroad? —Not at all. I ______________(not, earn) as much, but I’m glad to contribute to our motherland. 7.—Oh, no! We’re too late. The train ___________(leave)． —That’s OK. We’ll catch the next train to London. 8．In order to find the missing child, villagers _______________(do) all they can over the past five hours. 9．The manager ______________(tell) the workers how to improve the program since 9 am. 10．The two friends _______________(chat) on the Internet for three hours, and they will go on till next morning. Fill in the blanks with the correct tense. have not earned has left have been doing has been telling have been chatting Thank You! Put the verbs in brackets in the Present Perfect or Present Perfect Continuous. Mike: Where _______ you ______(be)? I ________________(wait) for an hour! Helen: Sorry, I _________________(talk) to an old friend. I ____________(not see) her for years. And imagine, we met in the middle of the street, just like that. Mike: What ___ she ___________ (do) since you last saw her? have been have been waiting have been talking haven’t seen has been doing Thank You! Helen: She _______________(work) as a telephone operator in a hotel but she wants to change her job. She __________________ (not get on) well with her boss recently. Mike: Our company is looking for an operator. _______ she _______(have) any interesting offers yet? Then tell her about this offer. She’ll appreciate it. has been working hasn’t been getting on Has had Thank You! Exercises I 1________________ (hear) a strange sound for a while. It’s a deep, loud roar, like a lion’s. But there aren’t any lions here... Or are there? Soon I see what 2______________ (make) the noise: a howler monkey. Now I feel less worried. Realising that something 3______________ (move) on my shoulder, I turn my head to look at it. Oh no! It’s a giant spider! I brush it off and it runs under some leaves. I try to bat away the huge insects, which 4______________ (fly) around my head in a black cloud for quite a while. I pull off the headset and I’m back in my living room. Thank goodness! I 5______________ (give) the latest virtual reality headset and, for the last twenty minutes, I 6______________ (use) it to explore the Amazon. This is an amazing experience and a reminder of how many species there are in the rain forest. We must do all we can to protect it. have been hearing has been making is moving have been flying have been given have been using Thank You! Thank You! Thank You! $$