Unit4 Save the trees 知识单 -2023-2024学年沪教牛津版英语七年级下册

U4 Save the trees U4 词汇Vocabulary 1. “讨论”, 2种表达 discuss= talk about 2. 和某人讨论某事 discuss sth with sb 3. 对抗... fight against 4. for example与such as区别 for example: 可放句首句中句尾, 用逗号隔开; 举一例 such as=like: 放句中; 举多例；后加doing 5. 给某人树立榜样 set an example to sb 6. “吸收”，2个表达 take in= absorb 7. 翻译take away；take care of；take part in；take off take away：拿走 take care of：照顾 take part in：参加 take off：起飞；脱衣服 8. 对...有害 be harmful to...=be bad for... 9. “生产；制造”，2种表达 produce= make 10. “主要的”，2种表达 major= big and important 11. “方便的”，2种表达 convenient= easier 12. “来自”，2种表达 come from...= be from... 13. “确切地说”，3种表达 in fact= actually= as a matter of fact 14. 环顾四周 look around 15. “由……制成”（能看出原材料） be made of 16. 想象做某事 imagine + doing sth 17. “大量的；数以百万计的” millions of... 18. “疾病”，2种表达 disease= illness 19. 对...有好处 be good for = be useful for 20. v. “挖”；过去式；现在分词 dig-dug-digging 21. 挖洞 dig a hole/holes 22. vt. “搬；扛；背”；过去式；现在分词 carry-carried-carrying U4 语法Grammar 现在进行时 一、定义： 1. 说话时正在进行或发生的动作。 eg. The children are playing in the park now. 孩子们正在公园里玩耍。 2. 现阶段一直持续的动作状态 eg. We are staying at Peter’s house at the moment. 我们正待在彼得家里。 2、 结构: 1. 肯定句：主语 + am/is/are+ doing eg. I am doing homework now. He is doing homework now. 2. 否定句：主语 + am/is/are+ not+ doing eg. I am not doing homework now. He is not doing homework now. 3. 一般疑问句：Am/Is/Are+主语+ doing? 肯定回答: Yes, 主语 + am/is/are. 否定回答: No, 主语 + am/is/are+ not. eg. Are you doing homework now? Yes, I am. /No, I’m not. Is he doing homework now? Yes, he is. /No, he isn’t. 4. 特殊疑问句：特殊疑问词+is/am/are+主语+ doing？ eg. He is doing homework in the bedroom. Who is doing homework in the bedroom? What is he doing in the bedroom? Where is he doing homework? 动词-ing 变化规则： (1) 一般情况加-ing play----playing watch----watching (2) 以不发音e 结尾，去e加-ing take----taking come---coming (3) 以辅+元+