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1、10. dig (dug, dug) v.挖 dig a hole 挖一个洞12. branch n.树枝复数branches 13. disease14* deforestation n砍伐森林 forest n.森林11. container n.容器 contain vt.包含n.疾病=illncss 14. carry (carries, carried) v.搬运二take15. decrease v卜降反,increase 增长Unit4 Save the trees 知识要点 班级：姓名：一、单词：1. save (saved) vt.拯救，节省,保存近recuse v.拯救sa
2、fe adj.安全的 safety n.安全 saving n.存款2. discuss (discussed) vt.讨论 discuss sth. with sb.与某人讨论某事 二talk about sth with sbdiscussion n. i寸论have a discussion about. = talk about 讨论, 谈论3. fight (fought, fought) vi.做斗争 n.战斗，争吵 fighter n.战士，斗争者have a fight with sb over/for/about (money)为(饯)和某人打 /一架fight for (f
3、reedom/our dream)由/我们的梦想)而战,努力争取,为奋斗fight against (environmental pollution) 对抗,打击(环境污染)4. against prep.反对 反for prep.支持 be against/for 反.对/支持=(didn ) agree with (不)同意5. harmful adj.有害的反harmlessharm v. n.伤害，损害，危害be harmful to=do harm to = be not good for X寸有害处6 produce v. 生产，产生二makeproduce n. 农产品 prod
4、uct n.产品production n.生产，产量 producer n.生产者7. major adj. 主要的二big and important majority n.多数& convenient adj. 方便的二easyconvenience n. 方便imagine doing sth想象做某事9. imagine v. 想象=(hinkin ones mind imagination ru 想象n.被采访者interview sb about sth就采访16. interview vt. n 采访 interviewer n. 采 访者 interviewee17. *bre
5、athe v呼吸 breath n呼吸 breathless adj.气喘吁吁的breathe in/out 吸进/呼岀 take a deep breath 深呼吸=breathe deeply=take in a lo( of air 二、词组：1. take in 吸收=accept/absorb/breathe (in)2. come from 来自二被 from3. look around环顾四周4. (be) made of.由制成(能看出原材料)-be made from.由制成(不能看出原材料)5. (be) good for对有用,有好处反be bad for.; be ha
6、nnful to对有害6. try/do ones best to do sth 尽某人最人的努力做.7. cut down a tree 砍树8. be in danger处于危险中9. destroy the area破坏这个区域10. is home to是的发源地/家园/聚集地11. protect the environment 保护环境12. fight against air pollution 对抗空气污染13. get.from.从中获得14. answer the phone 接电话15. talk to sb. On the phone 和某人在电话里说话16. know
7、 (more) about.(更加)了解17. interview sb about sth 就采访某人18. for example 例如 二such as19. in fact (补充细节)确切地说，事实上，实际上20. millions of大量的,数以百万计的21. in many ways以很多种方法22. in our daily lives在我们的日常生活中23. as a result 结果24. because of 因为25. according to根据26. air/noise pollution 空气污染27. living things 生物28. provide
8、sb with sth/ provide sth for sb 为某人提供某物三、句型结构：1. keep sth +adj.使某物保持怎样的状态c.g. keep the air cool and clean保持空气凉爽和清洁2. make sb/sth. + adj. 使某人e.g. make our lives more convenient.使我们的生活更方便四、重要句子：1. They kee the air cool and clean.它们保持空气凉爽和清洁。2. They take in harmful gases from the air and produce oxygen
9、 for us to breathe. 它们从空气中堕收有害气体，并产生氧气给我们呼吸。3. They arc major fighters against air pollution.它们主要对抗空气污染。4.1 know trees also make our lives more convenient.我知道树木也使我们的牛活更方便。5. A lot of the fumiture is made of wood.很多家具是用木头做的。6. Wc should stop doing： this 讦 wc dont want a world without trees.如果我们不想要一个没
10、有树木的世界，我们应该停止这样做。stop doing sth.意为停止做某事”。stop to do sth.意为“停下来去做某事”】五、语法：【现在进行时 the present continuous tense【定义】1. 说话时正在进行或发生的动作 2. 现阶段一直持续的动作【构成】 主语+be （is, am, are） （+not） +Ving （现在分词）1. 肯定句：主语+bc+现在分词I am doing my homework.我正在写作业。2. 否定句：主语+be not+现在分词The boy is not playing football.男孩没在踢足球。3. 一般疑
11、问句：Be+主语+现在分词？肯定回答：Yes,主语+bc. /否定回答：No,主语+bc not.Are you planting trees?你们在种树吗？ Yes, I am./ No, Fiyi not.4. 特殊疑问句：特殊疑问词+be+主语+现在分词？What are you doing now?你正在T什么？【动词现在分词变化规则】1 一般情况F词尾加-inggo一going 去ask一asking 问look一looking 看2.以不发音的e结尾的动词元辅e,去掉e加-ingtake一taking 拿走 make一making 制造 write一writing 写3.重读闭音节
12、辅元辅,双写末尾辅音JJII-ingget一getting 拿來，得到 put一putting 放置 run一running 跑 swimswimming 游泳 begin一beginning 开始4.少数-ie结尾，-ie变y,加-inglielying 说谎 die ying 夕匕【注意】1 有些动词不用现在进行吋,只能用一般现在时。v女口：1. like, love, hate; 2 see, taste, hear, sound; 3 know, understand, believe, 4 have, belong to, needDo you like milk? rfo不是：Are you liking milk?The book belongs to me. 而不是：The book is belonging to me.2. 一些表示位移的动词常用其现在进行时表将来。如 come, go, leaveWhen arc you leaving?你打算什么时候走?
