Unit 4 Save the trees【重点语法】-2021-2022学年七年级英语下册链接教材精准变式练（深圳牛津版）

Unit 4 Save the trees 教材重点语法知识链接及典型例题 The present continuous tense 原文呈现： We use the present continuous tense to show that something is happening now. 1.The children are playing In the park. We also use the present continuous tense to talk about temporary situations. 2. We are staying at Peter's house at the moment. We form the present continuous tense like this: Subject Verb to be Main verb I am (not) dreaming You/We/They are(not) dreaming He/She/It is(not) dreaming We form Yes/No questions and short answers in the present continuous tense like this: Am I reading? Yes, I am. No,I am not/'m not. Are you/we/they reading? Yes,you/we/they are. No.you/we/they are not/aren't/'re not. Is he/she/It reading? Yes,he/she/It is. No,he/she/It is not/isn't/'s not. We form Wh-questions in the present continuous tense like this: 3. What are you doing now?Why is he sleeping here? 总结： 现在进行时的用法 一．现在进行时的含义： （1）表示说话时正在进行或发生的动作，这时可以不用时间状语，也可以和now, at present, at the moment等时间状