寒假作业06 情态动词should、had better和may-【寒假分层作业】2024年八年级英语寒假培优练（牛津译林版）

限时练习：40min 完成时间： 月 日 天气： 作业06 情态动词should、had better和may 1、should情态动词，意为“应该，应当”。用来表示劝告或提建议，没有人称和数的变化，其后接动词原形，否定形式为: shouldn't+动词原形。 Eg. He should work harder.他应该更加努力工作。 You should help your mother with the housework.你应该帮你母亲做家务。 You should go there at once.你应该立刻去那儿。 [拓展] should的用法: ①should表示要求、命令。 Eg. Passengers should proceed Gate12.乘客请前往12号登机口登机。 ②should表示推测。 Eg. His backpack should be in the classroom.他的背包应该在教室里。 2、had better意为“最好”，没有人称、数和时态的变化，可简写为“'d better"，其后接动词原形(不带to的不定式)。可用于提出建议、劝告或表示种愿望。含有“应该做”之意,不十分客气，所以一般只用于对晚辈或平辈,不用于对长辈。had better的两种形式： ①肯定形式: had better +动词原形, 意为“最好做....”。 Eg. You'd better go to hospital at once. 你最好立即去医院。 ②否定形式: had better+ not+动词原形，意为“最好不做....” Eg. You had better not miss the last bus. 你最好不要错过末班公共汽车。 3.may是情态动词,可以用来表示可能性,意为"也许;可能"。 Note:作为情态动词,may在句中不可单独作谓语,后要接动词原形,它没有人称和数的变化。 2.用法 ①表示请求或许可,意为"可以" May I come in, sir?先生,我可以进来吗? Children may not go there.孩子们不可以去那里。 ②表示祝愿。 May you live happily.祝你生活幸福! ③表示推测,意为"可能"。 She may come, or she may not.她可能来,她也可能不来。 He may til be waiting for us.他可能还在等我们。 易混辨析 may be 与maybe的用法区别 may be为"情态动词+动词原形"结构,意为"可能是",在句中作谓语。 maybe作副词,意为"也许",在句中作状语，常用于句首。 例句 He may be a soldier,他可能是一名军人。 Maybe they are right,也许他们是对的。 一、单项选择 1．—I always feel tired. —You __________ do more exercise to make yourself stronger. A．should not B．should C．will not D．will 2．—Mom, could I go out with my friend for dinner? —Certainly, but you ________ finish your homework first. A．can B．could C．may D．should 3．—Only you and me? There ________ be four students. —Oh, Lily and Jack are having an art class. Let’s clean the classroom now. A．should B．will C．might D．can 4．— Miss Green, how can I get better grades in the important exam? — Besides hard study, you ________ check the paper carefully before handing it in. A．can B．may C．should 5．—Mr. Smith isn’t happy because I was late for school again. —You ________ say sorry to him. A．will B．may C．should D．need 6．—Jessica, it’s raining hard outside. —Oh, you _