英语课题Unit4 Save the trees知识点及拓展：1. save v. 拯救To save the trees.七年级英语拓展： 1） to save one ’s life 救命、拯救生灵She saved the dog ’s life.2）节约、节省It can save water to buy this kind of washing machine.3）储蓄、保存、积攒In order to save money, he made a desk by himself.2. discuss v. 讨论Let ’s discuss the importance of trees.拓展： discuss with sb.Let ’s discuss the plan with Mr. Brown.3. argue, quarrel, debate, discuss & reason1) argue指提出理由或证据为自己一方的看法或立场辩护，着重说理、论证和企图说法。We heard them arguing in the other room．2) quarrel指不友好的、吵吵嚷嚷的大声争论某事，尤其指“吵嘴、吵架 ”。He often quarrels about their housework with his wife．3) debate指意见对立的双方之间正式或公开的争辩。When I left, the men were still debating.4) discuss常用词，指就某一个或某一些问题表明观点、看法等，以便统一认识，解决问题。We should discuss the problem.4. fight v. 与⋯⋯ 斗争They help fight against pollution.拓展： fight against/ with sb./ sth. 为某人 / 某事而争论 / 打架Have you fight with your brother just now?fight about/ over sth. 因某事而争论Don’t fight about small things.5. against prep. 反对Are you against it or for it?6. example n. 例子Write down three examples.拓展： 1) 表示给某人举例，一般用give 。Give an example.2) set an example to sb. 给某人树立一个榜样。He set a good example to us.3) for example 例如，用作插入语。He ，for example ，is a good student.7. harmful adj. 有害的They take in harmful gases from the air.拓展： 1) be harmful for （doing ） sth. 对某物有害It ’s harmful for your health.2) be harmful to sb. 对某人有害It ’s harmful to you.8. produce v. 产生、生产This machine can produce oxygen.拓展： 1） produce by+ 生产者These tables were produced by him.2） produce from+ 生产地These tables...
