Unit 4 Grammar 同步练 2023-2024学年牛津译林版八年级英语下册

Grammar 作业提醒 1. 学会正确使用“特殊疑问词+动词不定式”的结构。 2. 学会正确使用 must 和 have to。 问题导学 (一)想一想，换一换 改为反义疑问句： (1) Kitty cannot decide which to choose first. (2) We don't have to go to school at weekends. (二)看一看，填一填 1. I don't know what to say next. 2. I can't decide which to take. 3. Please tell me how to go there. 通过观察以上例句，我们知道： (1)疑问词+动词不定式作动词的宾语。疑问词包括疑问 : what, which, who 和疑问 : how, when, where。 常和此结构连用的动词及动词短语有 know，learn, see, hear, ask, tell, decide,explain, find out, forget, remember, understand 等。 (2)“疑问词+动词不定式”结构在句子中还可以作 和 。 (3)“疑问词+动词不定式”结构可以改写成由该疑问词引导的 。 (4)注意：所有疑问词中，只有 不可以与动词不定式连用。 (三)读一读，选一选 1. You must finish your homework today. 2. You must not smoke here. 3. It is getting dark. He has to go home now. 4. They do not have to buy a computer at the moment. 通过观察以上例句，我们知道： (1) must表示 (主观/客观)的义务和必要，主要用于肯定句和疑问句中，意为“必须,得,要”。 must 的否定形式 must not 表示禁止，意为“不能，不行”。 (2) have to 表示一种 (主观/客观)的需要,意为“不得不”。 have to 有人称和数的变化。 have to 的否定形式 do not have to, 相当于 need not。 课堂作业 Ⅰ.根据句意及汉语提示写单词。 1. — Have you ever read the film (评论)? — Yes, I have. 2. You should (归还) the storybook to Mary this afternoon. 3. Lucy hasn't finished reading the book, so she wants to (续借) it. 4. Mr Wu has (推荐) so many interesting books to us. 5. Jack (教) me how to use the computer yesterday. Ⅱ.句型转换。 1. I don't know where we will meet. (改为同义句) I don't know where . 2. Do you want to say anything for yourself?(改为同义句) Do you have anything for yourself? 3. We don't know what we shall do next. (改为同义句) We don't know what next. 4. We have to go to school at weekends. (改为否定句) We go to school at weekends. 5. Must I finish my homework before the school is over? (作否定回答) , 。 课后作业 Ⅰ.用括号内所给单词的适当形式填空。 1. Kitty can't decide which type of book