八年级英语下册8b unit4a good read grammar课件.pptx

Unit 4 A good read;hand hand in and so on review return on time renew; Andy doesn't know _____________.;Millie can’t decide _________________.;They don’t know _________ to the station.;I don’t know how _______________ from a library.;To learn to use question words + to-infinitives To learn to use must and have to ;Gulliver didn’t know what to say. Gulliver didn’t know how to get away.; Using question words + to-infinitives; Using a verb and an object before a question word + to-infinitives; Using a noun after a question word + to-infinitives;The young woman doesn’t know what to do. 那位年轻女子不知道怎么办。 I don’t know what to say. 我不知道说什么。 We must know how to operate the machine. 我们必须弄懂如何操作这机器。 We want to learn how to write plays. 我们想要学习如何写剧本。 ;“疑问词 + 动词不定式”结构在句中还 可以作主语和表语。 How to use the machine is a question. （作主语） The question is when to go there. （作表语）;“疑问词 + 动词不定式”作宾语时，相当于一个由该疑问词引导的宾语从句。 Excuse me. Can you tell me how to get to the bookshop? = Excuse me. Can you tell me __ _ _ get to the bookshop?;Practice;他想知道明天在哪会见他的朋友。 昨天她问我们何时上交作业。 我们正在商量去参观哪个地方。 我不确定明天怎么去上学。 她不能决定买哪条裙子。;Grammar2;Gulliver was tied to the ground. So he must run away.;Practice;Gulliver was tied to the ground. He has to lie on the ground.;Practice;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 them longer, you renew them. You bring your student card every time you go to the library, but remember to bring your library card. ;must与have?to是情态动词，接动词原形。。 must 表示主语“有义务” “必须”，强调说话人的主观看法，主要用于肯定句和疑问句； must be+n/adj must +V原 (现在肯定推测, “一定”。)现否 can’t+be/V eg. He is sleeping. He ____ ____s