新牛津深圳版英语七年级下册第4单元知识要点

Unit 4 Save the trees 一、单词二、短语三、句型1. Trees are good for….be good for 对…..有利eg:运动有益于健康。

Exercise is good for health.be bad for 对…..有害eg:吸烟对健康有害。

Smoking is bad for health.2. A lot of the furniture is made of wood.①furniture 不可数名词，家具。

a set of furniture一套家具; 一件家具a piece of furniture。

②be made of 由….制成从产品中能够看出原材料be made from 由….制成。

从产品中看不出原材料。

拓展：be made up of 由……组成be made in 在……地方制造（比如made in China）be made by 由……（人）制造be made into 被制成......3. I can’t imagine a world without trees.imagine vt. 想像；猜想；臆断. imagine doing sth. 想像做某事如：Can you imagine living with such a boring man?你能想象和这样一个无聊的人生活在一起吗？4. She can skate at a very high speed because she practises a lot.practises vt. 训练，练习。

如：I should practise speaking English.practice n. 练习如：Playing the piano needs a lot of practice.5. But the speaker did not stop speaking until twenty past twelve.not…..until 意为：直到…..才…..。

深圳牛津版英语七年级下册知识必背unit 4一、单词拓展及同义词：1. save v. 拯救 = rescue v 营救；拯救；节省【拓】safety /safe /safely【搭】1）save one’s life 救命、拯救生灵2. discuss v. 讨论= talk about 谈论【拓】discussion n 讨论，商讨【搭】discuss with sb. 与……商讨（=have a discussion with）discuss in groups 分组讨论3. branch n. 树枝；分公司；分店；分行branches4. fight v. 与…作斗争fight-fought-fought 【搭】fight against 与……做斗争fight for 为……而斗争，为……而战【变】fighter n. 战士5. against prep. 反对【搭】act against 违反strongly against 强烈反对【拓】(1) 表示“靠，椅”Eg: Many people are against the wall.(2) 表示“防止；预防”Eg: Have you had an injection（注射剂）against the disease?6. example n. 例子【搭】set an example to sb. 给某人树立一个榜样for example=for instance 例如【辨】for example, such as, like7. harmful adj. 有害的【变】harmless adj. 无害的，无危险的harm v./n. 伤害；损害【搭】be harmful to = do harm to=be bad for 【反】be good for 对…有好处8. produce v. 生产；产生【变】product n. 产品，制品production n. 生产produce、product和production的区别produce多指农产品(尤指蔬菜水果等)。

Unit4 Save the trees知识要点一、单词：1. save (saved) vt. 拯救,节省, 保存[近] recuse v. 拯救safe 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=talk about sth with sb讨论，谈论discussion n. 讨论have a discussion about…= talk about3. 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(钱)和某人打了一架fight for (freedom/our dream)为(自由/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)不)同意4. against prep. 反对[反] for prep. 支持be against/for 反对/支持=( didn’t ) agree with (5. harmful adj. 有害的[反] harmless harm v. n. 伤害, 损害, 危害be harmful to=do harm to = be not good for 对……有害处6. produce v. 生产, 产生=make produce n. 农产品product n.产品production n. 生产, 产量producer n. 生产者7. major adj. 主要的=big and important majority n.多数8. convenient adj. 方便的=easy convenience n. 方便imagination n. 想象imagine doing sth 想象做某事9. imagine v. 想象=think…in one’s mind10. dig (dug, dug) v. 挖dig a hole 挖一个洞11. container n. 容器contain vt. 包含12. branch n. 树枝[复数] branches 13. disease n. 疾病=illness 14. carry (carries, carried) v. 搬运=take 14* deforestation n.砍伐森林forest n. 森林15. *decrease v. 下降.[反] increase 增长16. *interview vt. n. 采访interviewer n. 采访者interviewee n. 被采访者interview sb about sth 就…采访…17. *breathe v. 呼吸breath n. 呼吸breathless adj. 气喘吁吁的breathe in/out 吸进/呼出take a deep breath 深呼吸= breathe deeply=take in a lot of air二、词组：1. take in 吸收=accept/absorb/breathe（in）2. come from 来自=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 harmful to…对…有害6. try/do one’s best to do sth尽某人最大的努力做…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 (more) about…（更加)了解17. interview sb about sth 就…采访某人18. for example 例如=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 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 e.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3. the number of…　…的数量(+可数名词+谓语用单数) a number of…　许多(+可数名词+谓语用复数)四、重要句子:1. They keep the air cool and clean. 它们保持空气凉爽和清洁。

七年级下册期末复习U4知识点知识点一单词单词填空1. Trees are our good helpers. They help people f against pollution.2. You should protect your eyes. It is h to read in the sun.3. Trees p oxygen for us to breathe.4. I would like to visit you this weekend. When would be a c time for you?5. If you i something, you think about it and your mind forms a picture or idea of it.6. I have something important to d_______ with you.7. We will interview Dr Smith about the lives of trees and their m_____ uses.8. Mr Li bought a lot of f________ for his new house.9.The air is a kind of g ________ with no colour and smell.10. Some animals are in danger. We need to s________ them.知识点二课文短语1._______ _________ 吸收2.________ _________ 来自3.________ _________ 例如4.__________ _________ 确切地说；事实上5._________ _________环顾四周6._________ ________ _________由......制成7._________ __________大量的；数以百万计的8.________ ________ ________ 对......有用，有好处补充短语9.______ _______ ________ 对...有害10._______ _______ 数以千计11._______ _______ _______ 结果12._______ _______ 因为13._______ _______ 砍倒，砍伐14._______ _______ _______.....的数目完成句子1.我们必须停止浪费水。

牛津深圳版七年级下册英语第四单元语法词汇总结汇编语法一．现在完成时1.基本结构：助动词have/has+动词的过去分词。

(当主语是第三人称单数时用has，其余人称用have)1)肯定式：主语+have/has+过去分词.2)否定式：主语+have/has +not+过去分词.3)一般疑问句：Have/Has+主语+过去分词?回答：Yes, 主语+have/has.(肯定)No, 主语+haven't/hasn't.(否定)4)特殊疑问句：特殊疑问词+have/has（+主语）+过去分词?2.现在完成时用法：1)表示从过去持续到现在的动作或状态。

例：I have lived here since I was born.2)表示已经完成但对现在有一定影响的动作。

例：Eddie has just eaten Hobo's food.(Hobo has nothing to eat.)3)表示动作从过去某一时间开始到现在为止发生的次数。

例：I have already read this book many times.3.时间状语现在完成时常和already、ever、just、never、recently、yet等副词以及since、for 引导的时间状语连用。

例：He has already taken first prize twice.He has not returned the book to me yet.He has never visited the Great Wall.I have just had breakfast.I have been married for 20 years.I have learnt English since I was 5.注：already常用于肯定句，意思是“已经”，而yet常用于否定句和疑问句，意思是“还”。

二．have/has been to、have/has gone to、have/has been in辨析1. have/has been to意为“去过某地”，现在已不在那里了，后可接once，twice，three times等表示次数的词或者短语，表示“去过某地几次”，也可与just，never，ever 等连用。

Unit 4 Save the trees 知识点小结1. Discuss the importance of trees. 讨论树木的重要性。

1）discuss及物动词，意为“讨论，谈论”。

We should discuss the problem face to face.我们应该面对面地讨论这个问题。

I have something important to discuss with you.我有要事与你商谈。

2）importance不可数名词，意为“重要性”，其前面加定冠词the。

the importance of意为“……的重要性”。

Do you know the importance of salt? 你知道盐的重要性吗？2. If I plant this seed in the ground, will it become a pear tree, Hi? 如果我把这粒种子种在地里，它会长成一棵梨树吗，Hi？If引导条件状语从句时，意为“如果”。

条件状语从句表示主句动作发生的条件，有从句的动作发生就会有主句的动作发生。

复合句一般都要遵循主、从句时态呼应规律。

1）主句（包括祈使句和情态动词can, may, must等的句子）用一般现在时，从句也用一般现在时。

You must see a doctor if you are ill.如果你生病了，你必须去看医生。

2）如果主句是一般将来时，从句要用一般现在时表将来。

即“主将从现”。

We will go out if it is fine tomorrow.如果明天天气好，我们就出去。

助记：if条件句不一般，几个要点记心间。

条件句放在前，逗号要放句中间。

条件句表事实，主句常用现在时；条件句表可能，主将从现要牢记。

The children will climb the hill if it __________tomorrow.A. won’t rainB.didn’t rainC.isn’t rainingD.doesn’t rain解析：在含有if引导的条件状语从句的主从复合句中，主句是一般将来时，从句用一般现在时表将来。

1初一英语同步辅导（第7周）教学内容一、同步知识梳理一、词汇Words1. save v. _____________原文呈现：The title: Save the trees课堂小测：1. 让我们共同拯救地球，因为它正处于危险之中。

_______________________________________________________________2. 我们应该节约水。

_______________________________________________________________拓展：安全的____________ 安全地___________ 安全______________Keys: 1. Let ’s save the Earth together because it is in danger.2. We should save water.safe; safely; safety2. fight v.__________ 过去时 __________ 过去分词____________原文呈现：They help fight against pollution.fight against … 对抗，反对，与……作斗争扩展：fight with … 与…打架fight for … 为…而斗争/奋斗课堂小测：1. 用以上词的正确形式填空：2（1）They were good friends, but sometimes they _________ __________ each other.（2）We should _________ __________ pollution so that we may have a clean world.（3）As a young student, he must _________ hard __________ his future.2. 他同疾病抗争了两年。

Unit4 Save the trees重点单词和短语词组：1 发出，散发give out2 对...有害be harmful to3 世界上，在地球上on Earth4 对...有用be useful for5 在...末端at the end of6 生物living things7 最后in the end = finally = at last 8 为...感谢thanks for9 来自come from 10 例如for example11 了解很多关于...事情know a lot about12 与...交流communicate with13 提醒（警告）某人某事warn sb of sth 14 砍倒，砍掉cut down15 使某人做某事make sb do sth 16 等待，等候wait for17 参加，加入join in = take part in 18 和...连结在一起join together19 传递某人某物pass sth to sb =pass sb sth20 相互，互相each other=one another21 反对be against 22 冲走wash away23 属于belong to 24 太...而不能too…to25 阻止做某事stop from doing sth=keep from doing sth26 在某人看来in one’s opinion 27 照顾look after = take care of 28,十分，非常a lot=very much 29出发...到..：leave…for…30对...感兴趣be interested in = be keen on sth / doing sth31 玩得开心，过得愉快enjoy oneself= have a good time32 喜欢做...enjoy doing = like doing sth33 提醒、警告某人不要做某事warn sb not to do sth = warn sb against doing sth34 保护...免受protect from doing sth = protect against doing sth35 处于危险中be in danger36 最好做某事：had better do sth.最好不做某事：had better not do sth重点短语类型：1. be harmful to sb =do harm to sb = be bad for sb2. Thank sb for (doing) sth = thanks for sb (doing) sth3. A lot = very much; a lot of = many/much4. This book belongs to me. = This book is mine. = I have this book.5. Too... to = so...that = not...enough6,be in danger =be not safe7. Look after (well) = take (good) care8,Warn sb.=give sb. a warning课文语法现在进行时：用法1.表示说话时正在进行的动作。

七年级英语下册期末复习Unit4单元总结(牛津深圳版)本资料为woRD文档，请点击下载地址下载全文下载地址七年级下精华总结单词.拯救v.3.讨论v.5.根n.7.反对prep.9.有害的adj.1.产生；生产v.3.主要的adj.5.家具n.7.疾病n.9.洞n.21.容器n.短语.吸收3.确切地说5.环顾四周7.大量的；数以百万计的2.東树n.4.树枝n.6.不…作斗争v.8.例子n.0.气体n.2.氧气n.4.方便的adj.6.想象；设想v.8.挖v.20.搬；扛；背v.2.来自4.例如6.由…制成_8.对…有好处，有用重点词汇及辨析.discussv.讨论discussing;discussed;discussed【必会考点】discussv.讨论后接名词、动名词戒when,whether,what等引导的从句，但丌可接that从句。

Theyarediscussingwhattodonext.他们正在讨论接下来要做的事情。

【知识拓展】discussionn.讨论2.a不定冠词，意为“一（个、台…）”第一次提到某人戒某物时，用丌定冠词。

Thereisadogsittingontheground.那儿有叧狗坐在地上。

丌定冠词和可数名词违用时，可泛指某一类中的任何一个。

Ahorserunsfast.马跑得很快。

丌定冠词表示“一”的数量，但数的概念没有one强烈。

Theteacherenteredtheclassroomwithabook.老师带着一本乢走迚了教室。

【知识拓展】用在表示时间、重量、速度、价格等名词前，意为“每一…”Hetakesexerciseaday.他每天做运动。

3.fightv.斗争，打架fighting;fought;fought【必会考点】fightwith/against与…作斗争；与…打架yesterdayhefoughtbravelywiththethief.昨天他勇敢地和小偷作斗争。