Unit 2 In the library 语法精讲精练（讲义）-2023-2024学年译林版（三起）英语三年级下册

三年级英语下册 Unit 2 In the library语法精讲精练 一、祈使句的否定句 祈使句的否定句：Don’t / Do not +动词原形（短语），表示“不要做某事” 如：-Don’t run. = Do not run. 不要跑。 -Yes. 好的。 -Don’t drink. =Do not drink. 不要喝。-OK. 好的。 -Don’t sleep. =Do not sleep. 不要睡觉。-Sorry. 对不起。 -Don’t eat here. = Do not eat here. 不要在这儿吃。-I am sorry. 对不起。 Don’t eat or drink in the library. = Do not eat or drink in the library. 不要在图书馆里吃喝。 Don’t walk up and down. =Do not walk up and down. 不要上下走。 Don’t talk. 不要说话。 Don’t play with fire. 不要玩火。 Don’t be late. 不要迟到。 二、want 和would like的用法。 want = would like, 表示“想要”。 1. want sth. = would like sth. 想要某物 如：I want some milk. = I would like some milk. 我想要一些牛奶。 -Do you want some coffee? = Would you like some coffee?你想要一些咖啡吗？ -Yes, please. / No, thank you. 好的，太感谢了。/ 不，谢谢。 2. want to do sth. = would like to do sth. 想要做某物 如：I want to watch TV. = I would like to watch TV. 我想要看电视。 Do you want to eat some rice? =Would you like to eat some rice? 你想吃一些米饭吗？ 3. want sb. to do sth. = would like sb. to do sth. 想要某人做某物 如：Mum wants me to study hard. = Mum would like to study hard. 妈妈想要我努力学习。 三、一般疑问句 1. 用“Yes”或“No”回答的问句叫做一般疑问问。 如：-Is this your book? 这是你的书吗？ -Yes, it is. / No, it isn’t. 是的，它是。/ 不，它不是。 如：-Are you Helen? 你是海伦吗？ -Yes, I am. / No, I’m not. 是的，我是。/ 不，我不是。 如：-Is he your brother? 他是你的哥哥吗？ -Yes, he is. 是的，他是。 如：-Is that woman your mother? 那位女士是你的妈妈吗？ -No, she isn’t. She is my teacher. 不，她不是。她是我的老师。 2. 肯定句改为一般疑问句，This is 改成Is this; That is 改成Is that；He’s 改为Is he; she’s改成Is she; They are 改成Are they; I am改成Are you, my 改成your。 如：肯定句：This is my book. 一般疑问句：Is this your book? 肯定回答：Yes, it is. 否定回答：No, it isn’t. 如：肯定句：That’s a new pen. 一般疑问句：Is that a pen pen? 肯定句：He is my brother. 一般疑问句：Is he your brother? 肯定回答：Yes, he is. 否定回答：No, he isn’t. 肯定句：She’s Miss Li. 一般疑问句：Is she Miss Li? 肯定回答：Yes, she is. 否定回答：No, she isn’t. 肯定句：They are robots. 一般疑问句：Are they robots? 肯定回答：Yes, they are. 否定回答：No, they aren’t. 肯定句：I am Liu Tao. 一般疑问句：Are you Liu Tao? 肯定回答：Yes, I am. 否定回答：No, I’m not. 四、 形容词性物主代词 主格