资源简介 人教版九年级U8知识点归纳(短语+句型+语法)Unit 8 It must belong to Carla.【重点短语】1. be long to 属于2. listen to classical music 听古典音乐3. at school 上学;求学4. go to the concert 去听音乐会5. have any/some idea 知道6. a math test on algebra 有关代数的数学考试7. the final exam 期末考试8. because of 因为9. a present for his mother 送给她妈妈的礼物10. run for exercise 跑步锻炼11.toy truck 玩具卡车12. at the picnic 在野餐(中), 野餐时go on/for a picnic=have a picnic=go to a picnic 去野餐13.something valuable 贵重的东西14. the rest of… 剩下的,其余的…(做主语时,谓动和of 后名词一致)15.pick up 捡起,拾起(动副) pick it/them up16. run after 追逐,追赶17.catch a bus 赶公交车18. at the same time 同时,一起19. express a difference 表达差异municate with sb.=have commucation with sb. 和某人交流【重点句型】1. If you have any idea where might be please call me. 如果你知道它可能在哪,请打电话给我。2. It’s crucial that I study for it because it counts 30% to the final exam. 关键是我必须学,因为它占期末考试的30%。3. What do you think “anxious“ means 你认为“anxious”是什么意思 4. He could be running for exercise. 他可能是正在跑步锻炼身体。5. He might be running to catch a bus. 他可能是正在跑着赶公共汽车。6. Why do you think the man is running 你觉得那个男的为什么跑 7.Other people believe the stones have a medical purpose. 其他人认为石头有一个医学的用途。8. They think the stones can prevent illness and keep people healthy. 他们认为石头可以预防疾病,使人们保持健康。9. Now the mystery is solved.现在这件神秘的事被解决了。【语法知识】情态动词表推测的用法情态动词不仅用于表达能力、义务、允许或请求,还常用于表示对现在、过去或将来情况的推测。这些推测可以是肯定的,也可以是否定的,且根据语气的不同,所传达的确定性也有所差异。1.表示推测范围的词1) must基本含义:通常用于肯定推测,表示“一定”或“必定”。例句:He's been studying hard all week. He must pass the exam tomorrow.注意:在否定句中,mustn't 不用于推测,而是表示“禁止”。否定推测常用 can't 或 couldn't。2) might / may基本含义:两者都可用于表示不太确定的推测,但 might 语气更弱,更委婉。例句:She might be late for the meeting. She usually takes the bus, and it's raining today. 她可能会开会迟到。她通常坐公交,而今天下雨 。They may have gone for a walk after dinner. The lights are all off in the house. 他们可能晚饭后去散步了。家里灯都关了 。3)could基本含义:除了表示过去的能力外,could 也可用于对现在或过去的推测,但语气较弱,常带有不确定性。例句:That could be John's car. It looks just like his. (那可能是约翰的车。看起来跟他的一模一样 。4) can't / couldn't基本含义:用于否定推测,表示“不可能”。例句:She couldn't have finished the project so quickly. It's too complex. 她不可能这么快完成项目。这太复杂了 。5) should / ought to虽然这两个词主要用于表达建议或义务,但在某些语境下,它们也可以用于较为确定的推测,特别是当基于已知事实进行推断时。例句:You should have received the email by now. I sent it hours ago. 你现在应该已经收到邮件了。我几个小时前就发了 。They ought to arrive soon. The train was only slightly delayed. 他们应该快到了。火车只是稍微延误了一下 。2.时态用法1)对现在或将来情况的推测当我们想要对现在或未来的情况做出推测时,通常会使用“情态动词+动词原形”的结构。这种结构表达了我们对于某种情况发生可能性的判断。例句:She might be late for the meeting again. She's always forgetting her watch. 她可能又会开会迟到。她总是忘记带表 。“might”则表达了一种不太确定的可能性。2)对正在进行情况的推测当我们想要推测某人当前正在做什么时,需要使用“情态动词+be+动词-ing”的结构。这种结构能够传达出对正在进行动作的不确定推测。例句:They may be discussing the project in the meeting room. Let's go check. 他们可能在会议室讨论项目。我们去看看吧 。注意:“might”和“may”都表示对正在进行动作的不确定推测,但“may”的语气稍微正式一些。3)对过去或已完成情况的推测当我们想要对过去已经发生或完成的情况进行推测时,需要用到“情态动词+have+过去分词”的结构。这种结构帮助我们表达对过去事件可能性的判断。例句:She must have finished her homework early, because she's playing video games now. 她一定很早就完成了作业,因为她现在正在玩游戏 。“must have done”表达了对过去某事发生的肯定推测。3.表示肯定的猜测当我们非常确信某件事情时,使用must。它表示“一定”或“必定”。例句:He must be studying hard for the exam. 他一定在为考试努力学习。(非常确信)当我们对某事的猜测有一定把握,但没有那么确定时,可以使用can或could(could是can的过去式,但在表示猜测时,两者常可互换)。例句:She can be at the library right now. 她现在可能在图书馆。(有一定把握)当我们对某事的猜测非常不确定时,使用may或might(might是may的过去式,但在表示猜测时,两者意思相近)。例句:He might come to the party tonight, but I'm not sure. 他今晚可能会来参加聚会,但我不确定。(非常不确定)4.表示否定的猜测当我们想要表达否定的猜测时,can't/couldn't表示“不可能”,语气最强;而may not/might not则表示“可能不”,语气较弱。例句:He can't be at home. I just called and no one answered. 他不可能在家。我刚打过电话,没人接。(非常确定不在)She might not finish her homework today. 她今天可能完不成作业。(有一定可能性完不成)5.反意疑问句中的情态动词在反意疑问句中,如果句子中含有must、might、can等表推测意义的情态动词,疑问部分的助动词应与情态动词后面的动词在非推测情况下的用法保持一致。例句:She must be a teacher, isn't she 她一定是位老师,是吗 It must have rained last night, didn't it 昨晚一定下雨了,是不是 6.“情态动词+have done”除了表示猜测,情态动词+have done结构还可以表达一些特定的感彩。1)ought to/Should have done:表示“本该做,却未做”,常带有责备之意。oughtn't to/Shouldn't have done:表示“本不该做,却做了”,同样含有责备之意。例句:You should have cleaned your room before going out. 你本该在出门前打扫房间的。You shouldn't have lied to your parents. 你不该对你父母撒谎的。2)might have done:表示“本可以做,却没做”,语气较为委婉,有时也带有轻微的责备。例句:You might have helped me with the homework. 你本来可以帮我做作业的。同学们,今天我们来深入探讨一下英语中的两个非常有用的表达结构:“could have done”和“would (not) have done”。这两个结构在描述过去可能发生但未发生,或者本应该但并未发生的事件时,扮演着至关重要的角色。3)“could have done”这个结构用于表达某人在过去某个时间点“本可能做到某事,但实际上没有做到”。它常常带有一种遗憾或假设的意味,让我们能够想象如果条件不同,事情可能会有怎样的不同结果。例句:She could have finished her homework last night, but she watched TV instead. 她昨晚本可以完成作业,但她却看电视了。We could have won the game if we had practiced more. 如果我们多练习一些,我们本可以赢得比赛的。5)Would (not) have done这个结构用于表达过去某个时间点某人“本想做某事,但没做”或者“本不想做某事,但做了”。它揭示了人们内心的意图与实际行为之间的差异,帮助我们理解背后的动机和决策过程。例句:I wouldn't have gone to the party if I had known it was going to be boring. 如果我知道聚会会很无聊,我就不会去了。She would not have said that if she had known how hurtful it was. 如果她知道那句话有多伤人,她就不会那么说了。 展开更多...... 收起↑ 资源预览