七年级英语下册-Unit-4-Save-the-trees课件-(新版)牛津深圳版(PPT 30页)

1、Unit 4 Save the treesModule 2 Mans best friends第1页，共30页。自主预习一、根据汉语写出英文单词1. 树枝 (n.) _2. 气体 (n.) _3. 产生 (v.) _4. 拯救 (v.) _5. 方便的 (adj.) _6. 有害的 (adj.) _7. 讨论 (v.) _8. 与作斗争 (v.) _9. 想像 (v.) _10. 搬；扛 (v.) _11.反对（prep.） _12.疾病（n.） _branchgasproducesaveconvenientharmfuldiscussfightimaginecarryagainstdisea

2、se第2页，共30页。二、根据汉语写出下列词组1. 来自 _2. 例如 _3. 对有用，有好处 _4. 事实上 _5. 吸收 _6. 由制成 _7. 环顾四周 _8. 数以百万计的 _e fromfor example(be) good forin facttake in(be)made of/fromlook aroundmillions of第3页，共30页。三、根据汉语补全句子,每空一词1. They _ _ _ _ （吸收有害气体） from the air and produce oxygen for us to breathe. 2. A lot of the furniture

3、_ _ _ _ (是由木头制成的).3. We should _ _ (停止做) this if we dont want a world without trees. 4. Rebecca wants to know more about trees and _ _ _ _ (它们如何帮助我们).5. They help us _ _ _ (用很多方式).takeinharmfulgasesismadeofwoodstopdoinghowtheyhelpusin manyways 第4页，共30页。词汇精析【1】save v. 拯救；保存；节约；节省; 储蓄He saved the litt

4、le boy. 他救了那个小男孩。Save all your files. 保存你所有的文件。The only way is to save energy. 唯一的办法是节约能源。【拓展】 （1） save water 节约用水 We should try our best to save water. 我们应尽量节约用水。（2） save money 存钱I was trying to save money to go to college. 我当时正努力攒钱去上大学。第5页，共30页。（3） save time 节省时间It will save us much time. 这将为我们节省大

5、量的时间。【应用】 Animals are our friends. We must do our best_ (save) them.to save第6页，共30页。【2】discuss v. 讨论We will discuss that matter after lunch. 午饭后我们将讨论那件事。【拓展】 （1）discuss sth. with sb. 和某人商讨某事The children are discussing family rules with their parents. 孩子们正在和父母讨论家规。（2）discussion n. 讨论；议论She joined us

6、in the discussion. 她与我们一起讨论。第7页，共30页。【应用】 （1）We have many ideas after the_ (discuss).（2）()We discussed the problem for an hour.（选出可以替换画线部分的最佳选项）A. talked about B. thought about C. learned about discussionA第8页，共30页。【3】against prep. 反对; 违反No one spoke against me at the meeting. 会上没有人发言反对过我。You are aga

7、inst the law. 你违反了法律。【拓展】be against 反对; be for 支持Are you against it or for it? 你对此事是反对还是赞成?Are you for or against the plan? 你支持还是反对这项计划?【应用】()He is against the idea.（选出可以替换画线部分的最佳选项） A. agrees about B. disagrees about C. is forB第9页，共30页。【4】 harmful adj. 有害的Theres nothing harmful going on. 没有什么有害的事情发

8、生。【拓展】 （1）harmless adj. 无害的Much of it is harmless. 它大部分是无害的。（2）harm v. 伤害n. 伤害Many animals can harm me, but I do not harm them. 许多动物能伤害我，但我不会伤害它们。No harm would e to us. 我们不会受到伤害。（3）be harmful to=do harm to=be bad for对 有害Smoking is harmful to us.=Smoking does harm to us.=Smoking is bad for us. 吸烟对我们有

9、害。第10页，共30页。【应用】 （1）Some pests are _ (harmful). They are good for human beings.（2）It will do _ (harmful) to us.（3）You are _ (harmful) her feelings.（4）()Air pollution is harmful to our health.（选出可以替换画线部分的最佳选项）A. difficult for B. good for C. bad forharmlessharmharmingC第11页，共30页。【5】produce v. 产生； 生产Tre

10、es can take in harmful gases and produce oxygen. 树可以吸收有害气体并产生氧气。【拓展】 （1）product n. 产品；结果；作品How should you sell your product? 你怎样卖出你的产品？（2）production n. 生产；产量They will increase production of small cars. 他们将增加小型汽车的产量。（3）producer n. 生产商;制作人The producer and the consumer are different. 生产者和消费者是不同的。Jack w

11、orks as a director and producer. 杰克兼任导演和制片人。第12页，共30页。【应用】 （1）My fathers car is a home _ (produce).（2）The _ (produce) should think more of the consumer.（3）()They produce many beautiful toys for the children.（选出可以替换画线部分的最佳选项）A. give B. buy C. make productproducerC第13页，共30页。【6】convenient adj. 方便的I liv

12、e by the market, and its very convenient to go shopping. 我家就住在市场旁边， 买东西很方便。【拓展】 convenience n. 方便For the convenience government built a new department store. 为了便利，政府新建了一家百货商店。【应用】 （1）()The cars make our life convenient.（选出可以替换画线部分的最佳选项）A. difficult B. fast C. easy （2）The plane brought us lots of _ (

13、convenient).Cconvenience第14页，共30页。【7】imagine v. 想像；设想Can you imagine a world without trees? 你能想像一个没有树的世界吗？【拓展】 （1）imagination n. 想像;想像力She has plenty of imagination. 她的想像力非常丰富。（2）imaginary adj. 想像的Lots of children have imaginary friends. 许多孩子都有假想的朋友。【应用】 （1）_ (imagine) is more important than knowled

14、ge.（2）Some are _ (imagine), some are real. Imaginationimaginary第15页，共30页。【8】carry v. 搬；扛；背；拿And in this mobile world, you have to carry it along with you. 在这个移动的世界里，你得无时无刻地带着它。【拓展】（1）carry sth. 搬东西Please carry this stone to the yard. 请把这块石头搬到院子里去。（2）carry on 继续，坚持下去His encouragement made us carry on

15、 with the study. 他的鼓励让我们坚持学下去。（3）carry out 执行I am carrying out a task. 我正在执行一项任务。第16页，共30页。【辨析】bring， take， carry与fetch（1）bring 拿来，指从别处拿到说话的地方来。The teacher asked the students to bring their dictionaries to the class. 老师让学生们把字典带到班上来。（2）take 拿去，指从说话的地方带到别处去。May I take this magazine home? 我可以把这本杂志带到家里去

16、吗？（3）carry 携带、运送，没有方向性。This bus can carry 100 passengers at most. 这辆巴士最多可以乘坐100位乘客。（4）fetch 去拿来，一去一回往返，go and bring。Please fetch me some chalk. 去帮我拿点粉笔来。【应用】()Are the workers _ the tables?A. bringingB. takingC. carryingC第17页，共30页。【9】keep v. 保持Why do you keep silent? 你为什么不吭声？【拓展】（1）keep doing sth. 一直

17、做某事The little baby could not find his mother, so he kept crying. 那小宝宝找不见妈妈，所以一直哭。（2）keep+adj. 保持某种状态Keep quiet, children! 孩子们，请肃静！（3）keep sb./sth.+adj./adv. 使处于状态Everyone should keep the room clean. 每个人都应该保持室内清洁。【应用】()He is interested in painting, so he keeps _ his painting skills.A. practiseB. prac

18、tisingC. to practiseB第18页，共30页。【10】make v. 做；使You cant make me do anything. 你不能强迫我做任何事。【拓展】（1）make+n. 制作I can make cakes. 我会做蛋糕。（2）make+sb./sth.+n./adj. 使处于状态The news makes us happy. 这个消息使我们很高兴。（3）make sb. do sth. 使某人做某事He often makes his little sister cry. 他经常把他小妹妹弄哭。第19页，共30页。【辨析】（1）be made of, be

19、 made from, be made in与be made up ofbe made of+原材料“由制成”（从制成品中仍能看出原材料）Desks are made of wood. 书桌是用木头做的。be made from+原材料“由制成”（从制成品中看不出原材料）Paper can be made from grass. 纸可以用草来制造。be made in+地点“某物生产于某地”This train is made in Zhuzhou. 这列火车是在株洲生产的。be made up of+组成部分“由组成”Our class is made up of 21 boys and 1

20、6 girls. 我们班由21名男生和16名女生组成。第20页，共30页。（2）make, do与producemake 表示做出一种以前并不存在的实物。Im making a card. 我正在做一张卡片。do 表示做一个动作。What are you doing? 你正在做什么？produce 比make 更正式，强调生产的数量和结果。This factory produces radios. 这家工厂生产收音机。【应用】（）The teacher made the noisy boy _ up. A. standB. standingC. to standA第21页，共30页。语法梳理语

21、法精讲现在进行时现在进行时表示说话时正在进行的动作，或表示目前一段时间内正在进行的活动。与现在进行时连用的时间状语主要有now, these days, at present, at the moment等，也可以不用时间状语。1. 结构：be+doing, 通常与now, look, listen等提示词连用。如：The children are playing in the park now. 孩子们正在公园里玩。We are staying at home at the moment. 我们这时正待在家里。Look! They are running. 看！他们在跑。Listen! Th

22、ey are singing. 听！他们在唱歌。第22页，共30页。2. 否定句结构：be+not+doing。如：The children are not playing in the park now. 孩子们现在不在公园里玩。3. 一般疑问句结构：be+主语+doing？如：Are the children playing in the park now？孩子们现在正在公园里玩吗？4. 特殊疑问句结构：特殊疑问词+be+主语+doing？如：What are they doing now? 他们现在正在做什么？第23页，共30页。5. 动词现在分词的构成规则：（1）一般动词+ing。如：

23、feelfeeling， gogoing。（2）以不发音的字母e结尾的动词，去e加ing。如： writewriting, havehaving。（3）以ie结尾的动词，把ie改为y,再加ing。如：tie tying， lielying， diedying。（4）以重读闭音节结尾的动词，先双写末尾的辅音 字母，再加ing。如：runrunning， dig digging， swimswimming。第24页，共30页。6. 现在进行时除了表示“现在”，还可以表示“将来”，这类动词有e, go，fly, leave, arrive等。如：I am going. 我要走了。She is lea

24、ving for Beijing tomorrow. 她明天要去北京。The bus is ing soon. 公共汽车一会儿就到。He is flying to America this weekend. 他这个周末坐飞机去美国。7. 有些动词不能用进行时态。如：（1）表示感觉的动词,如:feel, hear, see, smell等。（2）表示感情和情绪的动词，如:like, love, hate, want 等。（3）表示精神活动的动词，如：understand, believe, know, mean, remember等。第25页，共30页。直击中考（）1. The bookstor

25、e _ a big sale. The books there must be very cheap now. Sounds great. Lets go into it and have a look. （2014十堰） A. will have B. had C. is havingD. was having（）2. Someone _ at the door. Can you open it? （2014河北） A. knocksB. knocked C. is knockingD. was knocking （）3. Where is Linda? I cant find her anywhere. She _ the flowers in the garden.（2014重 庆） A. watersB. is watering C. wateredD. has wateredCCB第26页，共30页。写作乐园话题四植树节活动【常用词组】1. plant trees 植树2. for example 例如3. at the same time 同时4.