Bunit4最新广州、深圳沪教版牛津英语七年级下册教案

1、7B Unit 4 save the trees.重点单词Save节约，节省pine n.松树discuss v.讨论,谈论Branch n.树枝)分歧root n.根，根源fight v.与.一战Against 反对，违反example例子harmful有害的gas 气体，毒气produce n.农产品oxygen n.氧气major 主要的convenient adj.方便的furniture家具imagine 想象，想至Udisease n.疾病dig v.挖Hole n.洞carry拿，搬运container n.容器必背短语：take in 吸收come from来自for exam

2、ple例如in fact实际上，事实上lookaround四周环顾(be)made of 由组成millions of数以百万的(be) good for对有害仔细讲解：1.If I plant this seed in the ground, will it become a pear tree , Hi (page43)由if引导的条件状语从句，表示“如果” ，如果主句(包括祈使句、含有情态动词 can、may must)用一般现在时，从句也要 用一般现在时；主句用过去时，从句也要用过去的某种时态，如果主句是一般将来时态，从句要用 一般现在时表示将来。help fight against

3、pollution.(page44)Fight vi. 与.斗争，常与介词 against或with连用。 如：They fought against the enemy fiercely扩展：fight vt. 战斗，反对，可直接跟宾语。如：They fought their enemies bravely.他们勇敢杀敌扩展：against prep. 意为“，违背，违抗；紧靠，防备" 。Be against 反对，be for 赞回如：We take out umbrella just against a rainy day.我们带上雨伞以防雨天。take in harmful

4、gases from the air and produce oxygen for us to breathe. (page45) harmful adj. 有害的；harm n. vt. 损害；伤害；危害；harmless adj. 无害的，不致伤的.如：It ' s harmful to your eyes to read in the dark. Noharmwould come duce vt. 产生，生产。也可以作为不可数名词，意为：产品，农产品。produce不可数n. “农产品”或 “自然产品”的总称，The farmers brought their p

5、roduce to town early each Saturday duct可数n. “产物，产品”，多指工业产品，Machinery, cars, ships are all亦可指任何体力劳动或脑力劳动所生 的东西或发源于具它事物的东四industrial duction不可数n. “生产,制造”。指生产的行为。也可指“产量”。The company is famous for the production of small cars.(page45)lot of the furniture is made of wood.My piano i

6、s made in Beijing. The table is made of wood. Grapes are made into wine.(记忆顺口溜：物质不变用Furniture不可数名词，家具。成品+be made in+ 地点产于某地原料+be made into+ 成品被制成成品+be made of+原料（看得出，物理）由制成成品+be made by+制造者被制造成品 +be made from+ 原 料（看不出，化学）由制成套家具；一件家具 apieceoffurniturea set of furnitureoThe birthday cake is made by my

7、 mother.Wine is made from grapes.The bike is made in China.(page45)of,物质变化是from )can ' t imagineaworld without trees.Imagine vt.想像；猜想；臆断.后面可跟名词，代词，动名词和从句作宾语。Imagine指设想与事实相反的东西，指错We can hardly imagine life without water.误的猜想；也可以表示猜想的东 我们简直不敢想象没有水的生活。西没有确定性，只是一种印象。guess缺之任何一句或资料而凭主观Open your eyes

8、, and guess who has the pen印象的猜想,（page48）However副词，表转折，意为：然而；不过。However副词位于在首、居中、句末，要 用逗号与其他部分隔开。Later, however, he changed his mind.But连词位于句首或居中。but之后 一般不得使用逗号ButIdidtellyouabouttheexamination!Hate讨厌，不喜欢Hate doing sth.表示习惯性动作Hate to do sh.表示某一次具体的行为can skate at a very high speed because she practis

9、es a lot.Practise vt. 训练，练习。宾语可接名词，代词，动名词。练习听力是非常重要的。如：It'sveryimportanttopractiselistening. Practise vi.如：Don'tforgettopractiseafterclass.课后别忘了练习。practise 的名词是practice 不可数名词。通常指经常性或系统性的重复练习。Practicemakesperfect.是一句谚语，意思是“熟能生巧the speaker did not stop speaking until twenty past twelve.（page52

10、）Not.until 意为：直到.才.。主语的动词一般为非延续性动词，它所表示的动作直到until所表示的时间才发生。如： We won' t see any flowers until May.Unitil 连词，意为：直到.时。用于肯定句，主句的动词一般为延续性动词。如：He waits the children are asleep. I shall stay here until twelveo clock.9.Another指三者或二者以上中的“另一个”I don ' t like this one. Please show me another.otherAdj.其

11、他的，其余的，常用复数形式Ask some other people.the other两者中个 ,one-the other 一一个一另一个He has two daughters. One is a nurse, the other is a worker.others其他的人或物There are no others.没有别的了。theothers其余的人或物，表示一个范围内其他全 部Two boys will go to the zoo, and the others will stay at home.10.辨析 Carry , take , bringcarry搬，扛不论移动的方向

12、The mother carries her baby in her arms。bring带来，带走以说话人为中心， 把某物带到说话人身边They' re going to bring on Christmas.some gifts for ustake以说话人为中心，把某物带到远处Please take these books me.to the library forcovers five and a half million square kilometers of the Amazon Basin and spreads across nine countries. (page

13、54)(1)Cover v. 覆盖，遮盖；cove with 用一把 盖上； be covered with 被.覆盖着。如：The road is usually covered with snow in winterCover可数名词，意为：覆盖物，盖子，封面如：The new book needs a new cover.(2)区另1J： across , cross , through , overacross介词，在空间内从一端到另一端， 或是十字交叉穿过.（过河，过桥，过马路）cross动词，含义同上through介词。穿过，通过。动作是立体空间进行，穿过沙漠，森林，窗户over动

14、词，则是对于位置的高低而言，强调"翻越”.穿越高的障碍物，如篱笆，栅栏，山脉living things lose their homes because of deforestation.(page54)许多生物因为森林砍伐失去家园。livingn.生物all living things所有生物adj.活着的、有生命的，主要用于作前置定语及冠词 the之后，表示一类人the living活着的人们alive活着的、有活力的The fish is still alive/living.Live laiv “活的” “有生命的” “活生生的”， 主要用来说鸟或其他动物a live fis

15、h条活鱼；a live tiger只活老虎实况的、现场直播的a live report现场报道livel y活泼的、有生气的、生动的a lively child活泼的孩子a lively discussion热烈的讨论a result, the number of kinds of animals, birds, insects and trees in the world(page54)is decreasing. 结果，世界上动物、鸟类、昆虫和树的种类的数目正在减少。the number of一的数量，后接复数名词， 谓语动词要用单数，The number of the students

16、in our class is 45.a number of大量，许多=many,后接复数名词， 谓语动词要用复数A number of students are playing football.14.Tea is the most popular drink in the world besides water.(page55)茶是世界上除了水之外最受欢迎的饮料。beside s“除了之外”(还有) 相当于“加上”；Besides his wife , his daughter also went to see him .except除了之外(没有)I go to school every

17、 day except butSunday.相当于“减去”；but介词，除了。只能和不定代 词如 nothing , all , anything , no one, anyone 等连用。Nobody knows the truth but Tom.语法：现在进行时一、教材经典句子：children are playing in the park。are staying at Peter ' s house at the moment 。二、现在进行时：一般表示此刻正在进行的动作，也表示目前阶段一直进行的动作。三、用法：1.现在进行时一般表示此刻正在进行的动作，常和now, righ

18、t now , at this moment 等时间状语连用，以及动词look , listen 等。如：Look! She is cleaning my room now 。2现在进行时表示目前阶段一直进行的动作，但是说话时不一定正在发生，常和 "these days , this week , at present ” 等连用。如：Is Jame working hard this term一、/注息：1.一些表示状态和意愿的动词，如be,like,want,kown,think,have 等，不能用于现在进行时态。如： I want to go home now 。,go, leave , stay , start , arrive等表示往返或位置转移的动词，可以用现在进行时表示将要发生的动作，这些动词可以与" tomorrow , next week”等表示将来的时间状语连用。3.现在进行时与always , often等词连用，也可表示习惯的、经常重复的动作。意为总是，老师。此时常常有埋怨、赞赏的色彩。如：Mary i