2017-2018学年牛津译林版八年级英语下册课件：Unit 4 A good read Grammar 2 (共8张PPT)

Unit 4 A good read Grammar 2 Gulliver was tied to the ground. So he must run away. Study is very important. So we must study hard. We use must when the speaker feels that something is necessary. He mustn’t lie on the ground. We mustn’t talk in class. Get the students to make up new sentences using “must”. Gulliver was tied to the ground. He has to lie on the ground. Grandma is ill. She has to see the doctor. We use have to when the situation makes something necessary. She doesn’t have to worry about herself. He doesn’t have to shout at the tiny men. Get the students to make up new sentences using “have to”. Complete the following sentences with ‘must, mustn’t, have to, don’t have to’. You keep quiet in the library. You keep the books clean and tidy. You draw or write in the books. You eat or drink in the library. You return the books on time, if you want to keep