情态动词复习课件 2022-2023学年人教版英语八年级下册

情态动词 常考考点 情态动词表能力(能够) 01 情态动词表请求、允许(能不能) 02 情态动词表必要性(必须) 03 情态动词表推测(可能) 04 05 其他情态动词 情态动词表能力 一、情态动词表能力 1.I can play the piano. 2.Can you speak Chinese? 3.I could swim when I was eight. 判断句子语气 表能力 一、情态动词表能力(总结) Eg.He can drive now. 1.can表示现在的能力 2.could表示过去的能力 Eg.Could you speak English at the age of five? 3.be able to强调成功地做了某事(be有人称、数和时态的变化) Eg.He will be able to sing this song in English in a few minutes, too. 情态动词表请求、允许 1.You can call me after six. 2.You could park the car here. 许可 许可 3.Could you show me the way? 委婉请求 注意:could/may表委婉请求或许可时,用can/can’t进行回答 判断句子语气 二、情态动词表请求、允许 4.May I use your pen? 许可 7 二、情态动词表请求、允许(总结) 1.can和could表示请求,许可 Eg.Can/Could I go with you? 2.will和would表示请求 Eg.Will/Would you tell me the way to the hospital? 3.shall/should用于第一人称,表示征求对方意见 Eg. Shall we talk? What should we do next? 二、情态动词表请求、允许(总结) 4.may/might表示许可 Eg.May I come in? Might I take a look of your work? 注意: 以上情态动词的过去式(could/would/should/ might都比原形表示的意义更加委婉) 情态动词表必要性 I have a stomachache. What should I do? You should lie down and have a rest. 三、情态动词表示必要性 1.He must take the man to the hospital. 2.You must stop smoking. 命令 must 表命令,意为“必须”。 否定形式为mustn‘t 。 判断句子语气 三、情态动词表示必要性 12 -Must I clean the room now? -No, you needn’t.You can do it tomorrow. must提问,用needn't或don't have to回答。 注意: 三、情态动词表示必要性 13 三、情态动词表示必要性(总结) 1.shall/should表示应该 Eg.Each student shall/should wear school uniform. 2.must表示必须 Eg.You must keep the place clean. 3.have to表示不得不(注:变否变疑问需借助动词) Eg.I have to go home now. Do you have to go home now? I don’t have to go home now. 情态动词表示必要性 4.need表示需要,做情态动词多用于否定句 -Must I pay now? -No, you needn’t/don’t have to. 情态动词表推测 四、情态动词表推测 1.对推测进行提问:can/could 2.对推测进行肯定回答:must(一定) 3.对推测进行不确定回答:may/might(可能) 4.对推测进行否定回答:can’t/couldn’t(不可能) -Can he be at home now? -Yes, he must be at home. -He may be at home. -No, he can’t be at home. 其他情态动词 Part 5 五、其他情态动词 1.would rather表示宁愿做(常与than连用) Eg.I would rather play football than swim. 句型: would rather do sth.宁愿做某事 would rather do sth. than do sth. 宁愿做…而不