Module 12 Unit 2 知识点课件 2024-2025学年外研版八年级英语上册

M12u2 知识讲解 Earthquakes always happen suddenly, so it is difficult to warn people about them. 地震总是发生得很突然，所以很难给予人们预警。 句中的them指的是earthquakes。 warn sb. about sth.= warn sb. of sth. 意为“提醒/警告某人注意某事”。 He warned me of the danger of swimming in the river. I was going for a swim in the sea. The people in the hotel warned me about the weather. 我要去海里游泳，宾馆里的人提醒我要注意天气。 1 知识讲解 warn sb. (not) to do sth. 告诫某人(别)做某事 His parents warned him not to play with fire. It be adj. (for sb.) to do sth. 对于某人来说干什么怎么样 知识讲解 1. There are some dangerous fishes in this river, and I’ve warned Jack ___________ (not swim) here. 2. It was very hot yesterday. The government warned people ________ the fire. 3. Parents often warn their children (study) harder. 完成下列句子 not to swim to study about/of 知识讲解 Do not jump out of high buildings. jump out of 表示“从…...跳出”。 e.g. Please don’t jump out of the window. 请别从窗子往外跳。 run out of 表示“从…...跑出”。 climb out of 表示“从…...爬出”。 2 知识讲解 Keep calm, especially when you are with other people. 保持镇静，尤其是当身边还有其他人的时候。 keep calm是系动词+形容词构成的动词短语。其他的行为动词还能作系动词的有: become, feel, look, seem 等。 如： Everybody became quiet. 所有人都安静下来了。 He looked a little nervous. 他看上去有点儿紧张. 3 知识讲解 keep的其他用法 keep+ sth. + 形容词 使某物保持某种状态 keep doing sth. 一直/坚持做某事 keep sb. doing sth. 使某人持续做某事 keep sb. from doing sth. 阻止某人做某事 知识讲解 1. To keep _______ (health), he takes exercise every day. 2. She told us to keep the door (close). 3. He kept me (wait) for half an hour. 4. They kept (talk) about it these days. 5. The snow kept us from (go) out. 完成下列句子 healthy closed waiting talking going 保持某种状态 使某物保持某种状态 使某人持续做某事 一直/持续做某事 阻止某人做某事 知识讲解 Be brave and be helpful. 4 helpful adj. 有帮助的。它是由help加后缀­ful变化而来的。 My teacher gave me some helpful tips on learning English. Your advice will be very helpful to my job and life in the future. 与helpful构成类似的词 hope(希望)→hopeful(有希望的) color(颜色)→colorful(多彩的) use(使用)→useful(有用的) peace(和平)→peaceful(和平的) harm(伤害)→harmful(有害的) power(力量)→powerful(强大的) 链接 知识讲解 1. Smoking can be (harm) to your health. 2. I am (hope) that she will come tomorrow. 3. This book is full of (use) tips. 4. Mornings are usually quiet and (peace) in my home town. 　 用所给单词的适当形式填空 harmful hopeful useful peaceful 知识讲解 In short, follow what you learnt in school. 5 in short表示“总之，简言之”。 表示“总之，简言之”的词组还有： in a word, all in all。 拓展 In a word, we must try our best to do the job. All in all, I still think September is the best. In short, I am interested in all of the sports. In short, he is an honest young man and has a bright future. This book is, in short, an exciting story about adventures. 知识讲解 You can be safe and you can also help save others. 6 others意为“其余的”，泛指剩余的另一些，但并非全部。 Some students are cleaning the windows, other students are mopping the floor. 注意 Some students are cleaning the windows, others are mopping the floor. others＝other＋可数名词复数。 They say my sister is always ready to help other people. They say my sister is always ready to help others. 知识讲解 another, the other, others, the others的区别 another 泛指“另一个”，后接可数名词单数或“数词(大于1)＋复数名词”。　 the other 特指两者中的另一个。 others 意为“其余的”，泛指剩余的另一些，但并非全部。others＝other＋可数名词复数。 the others 意为“其他的”，特指剩余的全部。 The coat is too big. Please show me another one.　 I have two bikes. One is white，and the other is red. Some people like reading，but others like playing computer games.　 There are sixty students in our class. Twenty of them are boys and the others are girls. 1)、表示有把握的推测时，肯定句用must (一定，准是)，否定句用can’t (不可能，一定不)。 must(can’t) + 动词原形，表示对现在情况的推测。must(can’t) + be doing, 表示对现在正在进行的情况的推测。must(can’t) + have done，表示对过去情况的推测。 mustn’t 表禁止，不表示推测 如： You must be hungry after a long walk.  长途步行之后你一定饿了。 They must be waiting for us. Let’s hurry up.  他们一定在等我们。让我们快点走吧。 You must have left your bag in the theatre.  你准是把你的包丢在剧院了。 You can’t be hungry, you have just had your dinner. 你现在不可能觉得饿，你刚吃过饭。 He wears glasses all the time, his eyesight can’t be getting better. 他一直带着眼镜，他的视力不可能在好转。 2)、表示把握不大的推测即可能性时，用can和may，常译为“也许，可能”。 如：The news may or may not be true.  这消息也许是真的，也许不是真的。 At the moment she may be playing with her classmates.  此刻她可能正在和同学们玩。 Anna might not have seen Tom yesterday.  安哪昨天可能没有看见汤姆。 Where can Wei Fang be? 魏芳会在哪里呢？ What can they be quarrelling about?  他们可能在争吵些什么呢？ Can she have lost the book? 她可能已把那本书丢了？  1. —Call me when you get home. —OK, ____. A. I must B. I can C. I will D. I may 2. Jim, _____ me a hand. A. gives B. is giving C. give D. will give 3. Let me ____ on duty today. A. am B. / C. be D. do 4. Let's ____ our time. A. not waste B. no wasting C. not to waste D. no waste 5. —____ higher, and you will see the house. — OK. A. If you stand B. To stand C. When you stand D. Stand C C C A D Choose the correct answer. 6. _____ forget to write to me when you _____ get there next Tuesday. A. Don't; will B. Please; will C. Please; / D. Don't; / 7. Please ___ do it. A. he B. he let C. let him D. him 8. ____ come in, please. A. Will B. Do C. Won't D. Did 9. _____ careful! A. Be do B. Do be C. Not D. Not do 10. _____ let anyone open the door. A. Don't B. Will C. Not D. No D C B B A Fill in the blanks using must / can / might. 1. –Could I borrow your dictionary?  –Yes, of course you________. 2. She doesn’t answer the bell. She______ be asleep. 3. The ground is wet. It ______have rained last night. 4. He is writing with a pencil. He______ have lost his pen. 5. A computer can’t think for itself, it ______be told what to do. can must must might must 一、选择题。 1. — Can you see some people are waiting ________ the library? — Yes. They are standing in a queue in front of its gate. A. around B. outside C. inside Exercise 2. The students warn us ____________________ here. A. to the danger of stay B. about the danger of staying C. in the danger of staying 3. We should __________ the drugs. They are very dangerous. A. live with B. stay away from C. learn about D. hang out 4. ____ terrible earthquake happened yesterday and many people lost their lives in ____ earthquake. A. An; the B. The; an C. A; the D. An ;an 1. 保持镇静，我们相信你会赢。 ____________, we believe you will win. 2. 托尼不想远离北京。 Tony doesn’t want to ________________ Beijing. 3. 我们应该避开那条狗，它可能会伤到我们。 We should ____________ the dog. It may hurt us. 二、根据汉语意思完成下列句子。 Keep calm stay away from keep clear of 4. 总之， 他对我的宠物狗很友好。 _________, he is kind to my pet dog. 5. 我独自一人完成工作很困难。 ____________ to finish the work by myself. In short It’s difficult 1. The teacher warns the students ____ the danger in the house. A. in B. at C. to D. about 2. Many students study for a month to ____ for the coming text. A. move B. jump C. prepare D. have D C 练 一 练 3. — What should we do? — We should _______ clear of the fire in an earthquake. A. keep B. try C. think D. stop A 4. Can parents help kids ______ bad games? A. stay off B. stay from C. move off D. move from B $$