沪教牛津版七年级英语第四单元save-the-trees复习课件

沪教牛津版七年级英语第四单元save the trees复习重点单词掌握 重重点点单单词词复复习习 单单词词：save,pine,discuss,branch,fight,against,example,harmful,gas,produce oxygen,major,convenient,furniture,imagine,disease重点单词掌握重点单词掌握一、一、save v.拯救拯救 gas n.气体气体 pine n.松松树树produce v.产生；生产产生；生产 discuss v.讨论讨论oxygen n.氧气氧气 branch n.树枝树枝 major adj.主要的主要的 fight v.与与作斗争作斗争convenient adj.方便的方便的 against prep.反对反对furniture n.家具家具example n.例子例子 imagine v.想象，设想想象，设想harmful adj.有害的有害的 disease n.疾病疾病 重重点点短短语语复复习习 in many waysin many ways take intake in come fromcome from for examplefor example in factin fact look aroundlook around be made ofbe made of millions ofmillions of stop doing sthstop doing sth be good forbe good for as a resultas a result cut downcut down在许多方面在许多方面吸收吸收来自来自例如，举个例子例如，举个例子（补充细节）确切的说，实际上（补充细节）确切的说，实际上环顾四周环顾四周由由.制成制成大量的，数以百万计的大量的，数以百万计的停下做某事（正在做的事情）停下做某事（正在做的事情）对对.有益，对有益，对.有好处有好处结果，因此结果，因此砍到砍到 重重点点单单词词讲讲解解 1.save 1.save 除了意为“拯救拯救”，还有“节省；节省；储蓄储蓄”的意思。You should do your best to save the person.你应该尽你最大能力去解救这个人。It will save a lot of money.这会节省很多钱。Children should learn to save.孩子们应学会储蓄。save money “存钱”。大家学习辛苦了，还是要坚持继续保持安静继续保持安静 2.discuss v.讨论讨论【用法】【用法】可构成词组：discuss sth.with sb.意为“和某人讨论某事”。He will discuss the problem with me.他和我讨论这个问题。【拓展】【拓展】discuss 的名词形式是discussion.“和某人讨论”可说成“have a discussion with sb.”fight v.与与作作斗斗争争，打打架架 【用法】【用法】fight的过去式为fought；fight可做不及物动词，如可做不及物动词，如fight against“与作斗争”,fight for“为而战”.They fought against the enemy.与敌人作斗争。fight也可做及物动词，也可做及物动词，“与与作斗争作斗争”，直接跟宾语。，直接跟宾语。They fought the enemy bravely.勇敢与敌人作斗争。勇敢与敌人作斗争。fighter“战斗者战斗者”。fire fighter 消防员消防员 against prep.反对反对 Against 是介词，反义词为“for”,意为“支持，拥护”Are you against or for the plan?你是支持还是反对这个计划？harmful adj.对对有害的有害的【用法】【用法】Be harmful to 对对有危害有危害Smoking is harmful to your health.吸烟有害健康。吸烟有害健康。harm n.损害；伤害损害；伤害-ful是表肯定的形容词后缀肯定的形容词后缀，-less是表示否定的形容词后缀否定的形容词后缀。harmless“无害的”This experiment was harmless to the animals.这个试验不会对动物造成伤害。Trees take in _（harm;harmful;harmless）gas from the air.答案：答案：harmful produce v.产产生生；生生产产1.produce，及物动词，动词，意为“产生；生产”，后直接接宾语。The factory produces 1000 cars a year.这家工厂每月生产1000辆汽车。product,不可数名词，名词，意为“产品，(尤指）农产品”。He took the product to the market every Sunday.他每周日把农产品送到市场上。practise 练习练习【用法】【用法】宾语可以是名词，代词或动名词宾语可以是名词，代词或动名词You must practise speaking English every day.你必须每天练习说英语。你必须每天练习说英语。practice 作不可数名词，意为作不可数名词，意为“练习练习”，指经常性或系统的，指经常性或系统的重复练习。重复练习。Playing the piano needs a lot of practice.弹奏钢琴需要多加练习弹奏钢琴需要多加练习.convenient adj.方便的方便的【用法】【用法】convenient 意为“使人感觉方便的”,be convenient for/to sb.对某人来说很方便。（改错题）When are you convenient?答案：答案：When is it convenient for you?思路分析：思路分析：convenient 不可直接说“人很方便”。imagine v.想象；设想想象；设想【用法】【用法】imagine sth./doing sth.“想象某事/做某事”。I imagine living in a house with a big garden.我设想住在一所带大花园的房子里。即即学学即即用用 从方框中选择适当的单词完成下列句子。如有必要，须改变单词的形从方框中选择适当的单词完成下列句子。如有必要，须改变单词的形式。每个单词仅用一次。式。每个单词仅用一次。disease,imagine,convenient,produce,save,harmful,against,discuss,fight,major1._yourself to be on a desert island.2.Please call me when it is _for you.3.Water exists in the soil in three _ forms.4.I realized from his remarks that he was _the plan.5.The _is spreading.6.We _ them and take care of them.7.Dont _ with him!He is a mad man.8.Plants _ oxygen for us to breathe.9.Freezing winter is _ to orange trees.10.I have no time to _ your problems.答案：答案：1.Imagine 2.convenient 3.major 4.against 5.disease6.save 7.fight 8.produce 9.harmful 10.discuss 【短语学习】【短语学习】1.in many ways 在许多方面在许多方面way 可数名词，可数名词，“方面，方式，道路方面，方式，道路”.Do it in your own way.按你自己的方法去做吧按你自己的方法去做吧.Its the best way to study English.这是最好的方式去学习英语。这是最好的方式去学习英语。The little boy asked me the way to the park.小女孩问我去公园的路。小女孩问我去公园的路。by the way 顺便说一下顺便说一下 take in 吸收吸收【用法】【用法】take 的过去式是took,take in 除了当“吸收吸收”讲，还有“领会领会”的意思。it easy to take in the meaning of the word.很容易去领会这个单词的意思。take off 脱下；起飞 take care of 照顾；take away 拿走 come from 来自来自【用法】【用法】come from 的同义词组是 be from.【考题链接】【考题链接】Where are you from?（同义句转换）Where _ you _ _?答案：答案：do;come from思路分析：思路分析：come from和be from同义。in fact 事实上事实上【用法】【用法】in fact 的同义词组是as a matter of fact。In fact(As a matter of fact),I didnt have anything.事实上事实上,我什么也没有。我什么也没有。do ones best to do sth 尽某人最大的努力做某事尽某人最大的努力做某事do ones best to do sth=try ones best to do sth我们应该尽我们全力学习英语我们应该尽我们全力学习英语。We shoule do/try our best to learn English。Protect动词动词“保护保护”，常与介词，常与介词from连用。连用。Protectfrom,保护保护免受免受的伤害的伤害戴太阳镜可以保护眼睛免受太阳的照射。戴太阳镜可以保护眼睛免受太阳的照射。Wearing sunglasses can protect your eyes from the sun.【用法】【用法】look around 也可说成look round。【考题链接】【考题链接】You ought to go and _in that big store.A.look for B.look around C.look at D.look downlook around 环顾四周环顾四周,四处看看四处看看B be made of 由由制成制成【辨析】【辨析】be made of,be made from 两个词组都有两个词组都有“由由制成制成”的意思。的意思。be made in be made in 在在在在地方制造地方制造地方制造地方制造 millions of 大量的；数以百万计的大量的；数以百万计的【用法】【用法】million前如有数词修饰有数词修饰则不能变复数，如两百万应说成“two million”.当表示一个笼统的概念时，当表示一个笼统的概念时，hundred,thousand million 等常用复数形式，且与介词等常用复数形式，且与介词of使用使用,修饰修饰可数名词复数。可数名词复数。stop doing sth.停止做某事停止做某事【辨析】【辨析】stop doing sth.和和 stop to do sth.【拓展】stop 还有名词词性，意为“车站车站”be good for 对对有用；有好处有用；有好处【用法】【用法】be good for 的反义词组是“be bad for”对.有害【辨析】【辨析】【辨析】【辨析】【即学即练】【即学即练】从方框中选择适当的短语完成下列句子。如有必要，须改变短语的形式。每个短语仅使用一次。in many ways,come from,be made of,be good for,take in,for example,in fact,millions of,look around,stop doing sth.1.It will _ her to be out in the sun.2.How old are you and where do you _?3.The air is full of _ invisible germs（微生物）.4._ I am not interested in maths.5.It may _ cloth.6.Shanghai is different from Nanjing_.7.Fish _ oxygen through their gills.8.Football,_,is very popular in the world.9._,and you can notice a car.10._ reading your book.There is someone knocking at the door.答案：答案：1.be good for e from 3.millions of 4.In fact 5.be made of6.in many ways 7.take in 8.For example 9.Look around 10.Stop 重点句型重点句型 1.They provide us with wood,fruit.它们给它们给我们提供木头，水果。我们提供木头，水果。【句子分析】【句子分析】provide sb.with sth.=provide sth.for sb.2.They keep the air cool and clean.它们它们保持空气凉爽，干净。保持空气凉爽，干净。【句析】【句析】此句中的此句中的keep意为意为“使维持（某种状态）使维持（某种状态）”。常构成如下。常构成如下句式：句式：1.keep+名词名词+形容词形容词 keep the classroom clean保持教室干净保持教室干净2.keep+名词名词+doing【例句】【例句】She kept me waiting for a long time.她让我等了很长时间。她让我等了很长时间。3.Trees also make our lives more convenient.树也使我们的生活更方便了。树也使我们的生活更方便了。【句析】【句析】此句中此句中make意为意为“使使怎么样怎么样”。常构成如下句式：。常构成如下句式：1）make sth./sb.+形容词形容词【例句】【例句】He tried to make them happy.他设法使他们高兴。他设法使他们高兴。2）make+sth./sb.do【例句】【例句】He made me stay with him.他让我和他在一起。他让我和他在一起。How did you make the baby stop crying?凌凌风风是是怎怎样样使使婴婴儿儿停停止止啼哭的？啼哭的？【即学即练】【即学即练】【考题链接】【考题链接】1.We _ the students in that place with school things.A.gave B.take C.bring D.provide 2.We should do more exercise to keep us _.A.health B.healthy C.unhealthy D.ill 3.We are trying to make our city _.A.to become more beautiful B.to be less noisy C.more beautiful D.becoming less noisy4.We often make him _ our children.A.help B.to help C.helping D.helped答案：答案：1.D 2.B 3.C 4.A 单词辨析单词辨析Besides 与exceptBesides意为“除之外（还有）”Except 意为“除之外”，有排除的含义Five people are late besides me.除了我之外，还有五个人迟到了。He gets up early every day except Sunday.他每天早起，除了星期天。动词的-ing形式 重点语法重点语法现在进行时现在进行时其结构 是“be（am,is,are）+动词的现在分词”。表示说话时正在进行的动作，也表示目前一直进行的动作。1.表示正在进行的动作，常和now,right now,at this moment等时间状语及动词look,listen等连用。Look！She is cleaning the room now.看，她现在正在打扫房间。2.表示目前一段时间内一直发生的动作，但是说话时不一定正在发生，常和these days,this week,at present等时间状语连用。They are working on the farm these days.这些日子他们都在农场工作。3.一些表示状态和意愿的动词，如like,want,know,think,have等不能用于现在进行时。I want to go home now.(不能说I am wanting to go home now)我现在想回家。