中职英语第三册unit-3-resources-and-environment课件

1、Lesson 1 Natural resourcesLesson 1A natural resource is anything people can use which comes from nature. People do not make natural resources, but gather them from the earth. Examples of natural resources are air, water, wood, crude oil, solar energy, wind energy, hydro-electric energy.自然资源（natural

2、resources）:凡是自然物质经过人类的发现，被输入生产过程，或直接进入消耗过程，变成有用途的，或能给人以舒适感，从而产生有价值的东西。自然界存在的有用自然物。人类可以利用的、自然生成的物质与能量，是人类生存的物质基础。主要包括气候、生物、水、土地和矿产等5大资源。 What is Natural Resources?A natural resource is anythingIt can be divided into two kinds, one is renewable, while the other one is non-renewable.A renewable resourc

3、e grows again or comes back again after we use it. For example, sunlight, water, and trees are renewable resources .A non-renewable resource is a resource that does not grow or come back, or a resource that would take a very long time to come back. For example, oil, coal, natural gas and all other m

4、ineral resources.It can be divided into two kinNatural Resources Renewable resources Nonrenewable resourcesNatural Resourcesfresh waterforestlandminesfossil fuels (coal, oil and natural gas) Important natural resources on land, there are five and they are:fresh waterImportant natural rNew wordsNew p

5、opulation ：,ppjulein 人口population常与定冠词the连用,作主语用时,谓语动词常用第三人称单数形式。例如: The worlds population is increasing faster and faster. 全世界的人口增长得越来越快 2. 当主语是表示“人口的百分之几、几分之几”时,谓语动词用复数形式。例如: About seventy percent of the population in China are farmers. 中国大约有百分之七十的人口是农民。 population ：,ppjulein 人3. 表示人口的“多”或“少”,不用“m

6、uch”或“little”,而要用 “large”或“small”。例如: India has a large population. 印度人口众多。 Singapore has a small population. 新加坡人口少。 4.询问某国、某地有多少人口时,不用“How much.?”,而用“How large.?”;在问具体人口时用What.?。例如:你们家乡有多少人口? -How large is the population of your hometown?What is the population of your hometown? 3. 表示人口的“多”或“少”,不用“

7、much”save ：seiv 节省,节约To save is to get.节约就是赚钱。save nature 保护大自然save money 存钱save ones life 救命save ：seiv 节省,节约To save is Lesson2 Natural disastersLesson2 earthquakesearthquakeswindstormswindstormsdroughtdroughtTsunamiTsunamifloodfloodmud-rock flowsmud-rock flowsSand stormSand stormVolcanoVolcanoDefin

8、itionNatural disaster is the consequence of a natural hazard, such as floods, droughts, mud-rock flows, tsunami, earthquakes, windstorms and the stretching of new deserts which affects human activities .自然灾害是影响人类活动自然风险，例如洪水，干旱、泥石流、海啸、地震，风暴和沙尘暴。DefinitionReasons（Why natural disasters occur？）There are

9、 two reasons:Natural causes(自然原因)Take earthquake (地震) and rock and mud slides for example （泥石流）The earthquake is mainly due to the earths movement change (地壳的运动变化)The rock and mud slides chiefly because of successive torrential rains (连续的强降雨)，In addition, the stability of the geological structure （地

10、质结构的稳定性）is also very importantReasons（Why natural disasters causes of humans errors (人为原因)The atmosphere changed artificially, surface temperature changes caused the changes in core temperature;Outer space is disturbed by all kinds of aircraft electromagnetic, affecting the earths magnetic field and

11、 solar magnetic field relations;3. Ground water and oil, gas, coal, and others was a lot from the ground quickly , cause the deformed； 4. The surface structure, high pressure caused the changes.1、大气层人为地改变，地表温度变化引起地核温度变化；2、外层空间被各种飞行器的电磁严重干扰，影响了地球磁场以及与太阳系磁场关系的变化；3、地下水、石油、天然气、煤炭、以及其它矿藏被从地下大量地快速地开采出来，引起

12、地壳变形；4、地表建筑高耸入云，引起地表压力变化。causes of humans errors (人为原Disadvantage and advantage摧毁房屋，使人民居无定所。Destroy the house, so no fixed abode.影响交通，电力，水利设施。Affected traffic, the electricity and water conservancy facilities.影响收成， 给人民生活带来不便。Affected crop, and an inconvenience to the peoples livelihood.造成巨大经济损失，对国家和

13、人民均不利。Enormous economic loss to the country and people are adverse.Advantage：Make people understand the importance of harmony with nature，then do their best to protect the environment.Disadvantage and advantageNew wordsNew earthquake :kweik n.地震e.g.:1.Did you experience an earthquake? 你经历过地震吗？2. A t

14、errific earthquake shook japan. 可怕的地震震撼了日本3. A strong earthquake took place in Sichuan. 四川发生了一场强烈地震。earthquake :kweik n.地震danger deind n.危险 1.表示做某事的危险或发生某情况的危险等，通常后接of in (doing) sth The children didnt realize the danger of swimmingin the river. 孩子们没有意识到在这河里游泳的危险 Is there any danger in climbing the

15、tree? 爬这树有危险吗?2. in danger (of)，意为“在危险中 His life is in danger. 他有生命危险。He is in danger of losing his life. 他有生命危险danger deind n.危险 1.表GrammarGrammar表示：1)经常性、习惯性的动作或存在的状态。e.g. I go to school on foot.2)表示主语的特征、性格、能力、爱好等。e.g. He can swim. I work hard. I like watching TV. 3)表示客观真理 e.g. There are seven da

16、ys in a week. The moon moves round the earth. 其结构按正常语序，即“主语+谓语+其它” 一般现在时表示： 一般现在时其句式变化可分为两种情况 1)表示动作， 一般人称作主语的，变否定句须在动词前加助动词dont；变一般疑问句须在句首加助动词do。 E.g. They have lunch at 12:00. They dont have lunch at 12:00. Do they have lunch at 12:00?其句式变化可分为两种情况2） 单三人称做主语的，变否定句须在动词前加助动词doesnt；变一般疑问句须在句首加助动词does。

17、E.g. Jenny speaks English very well. Jenny doesnt speak English very well. Does Jenny speak English very well? 2） 单三人称做主语的，变否定句须在动词前加助动词doesn含有be动词的要在be上做变化. E.g. Danny is a good student. Danny isnt a good student. Is Danny a good student? 其时间状语为often、 usually、 always、 sometimes等频率副词，on Saturdays、 i

18、n the morning (afternoon evening) 、every day 等。含有be动词的要在be上做变化. E.g. Da1 Jenny _ in an office. Her parents _in a hospital.A work;works B works; work C work;are working D is working;work2 One of the boys_ a black hat.A have B there is C there are D has3 We will go shopping if it _ tomorrow.A dont rai

19、n Bdidnt rain Cdoesnt rain Disnt rain 4 He said the sun _in the east and _in the west.A rose; set B rises; sets C rises, set D rise; sets5 Wang Mei _ music and often _ to music.A like; listen B likes; listens C like; are listening D liking ; listenBDcBB1 Jenny _ in an office. He一.用法：表示在过去某个时间发生的动作或存

20、在的状态，也表示过去经常或反复发生的动作。二、构成： 肯定句：主语+动词的过去式 否定句：主语+didnt+动原一般问句：Did+主语+动原一般过去时Grammar一.用法：表示在过去某个时间发生的动作或存在的状态，也表示过三. 与什么时间连用 1. yesterday, the day before yesterday, yesterday morning, yesterday afternoon, yesterday evening, 2.last week, last year, last Monday, last night, last summer, last January3.tw

21、o days ago, three months ago, a moment ago, just now三. 与什么时间连用1. yesterday, the d 规则动词过去式的构成1、一般情况下，加 -ed。 ask - asked help - helped watch - watched2、结尾是“e”的词，加 -d。 dance - danced love - loved live - lived 3、重读闭音节词，且末尾只有一个辅音字母的，先双写 这个辅音字母，再加 -ed。 stop - stopped drop - dropped beg - begged4、以辅音字母加 y

22、结尾的词，改 y 为 i，再加 -ed。 carry - carried study - studied hurry - hurried Grammar 规则动词过去grow - grewknow - knewthrow - threwblow - blewwrite - wrotedrive - drove ride - rodeget - gotforget - forgotlend - lentsend - sentspend - spentsay - said */sed/pay - paidstand - stoodunderstand - understoodlet - let p

23、ut - putcut - cut read - read*am, is - was are - were do - did go - went have - hadsee - sawcan - couldmay - mightdig - dugeat - atefind - foundmake - madehear - heardrun - rantake - tookhold - heldspeak - spokeleave - leftkeep - keptsleep - sleptsweep - swepttell - toldsell - soldbegin - begansing

24、- sangsit - satswim - swamring - ranggive - gave bring - broughtbuy - boughtthink - thoughtteach - taughtcatch - caughtcome - came become - became不规则动词的过去式Grammargrow - grewam, is - was keep用括号里动词的适当形式填空。1. He _ (read) that book last week.2. Last night he _ (arrive) just in time for the show.3. Mary

25、 _ (marry) Thomas yesterday.4. Tom _ (show) us where to sit at the meeting yesterday.5. Last summer we _ (visit) Uncle Jack.6. It _ (rain) almost every day last month.7. John _ (like) to play piano when he was in secondary school.8. Betty _ (work) hard all last year.9. We _ (change) the color of our

26、 uniforms last Christmas.10. Last year Frances _ (buy) her mother a pretty watch for her birthday.readarrivedmarriedshowedvisitedrainedlikedworkedchangedbought语法练习用括号里动词的适当形式填空。readarrivedmarri让我们从点滴做起，身体力行，共同为安全美好的生活环境努力！让我们谱写出人与自然共存的和谐音符！Thank you for listening让我们从点滴做起，身体力行，共Thank you for lLesson

27、3 Environmental protectionLesson 3 Envir1.Reduce the discharge of Co2: Require us make sure, economize on electricity (generate electricity, take, burn coal), turn on little car, keep the temperature on the earth; 2. Protect the forest and ocean well; 3. Plant trees;4. Reduce the architecture height

28、 in the earths surface, make the pressure of the earths surface invariable;5.Reduce the exploitation of groundwater, petroleum, natural gas, coal, and other mineral deposit, keep the form of the earths surface; 6.Improve ones own consciousness, make sure people get along with the nature harmoniously

29、.1.减少co2的排放：要求我们做到节约用电（发电要燃烧煤炭），少开汽车,保持地球的温度；2.保护好森林和海洋；3.植树造林；4.降低地表建筑高度，使地表压力恒定；5.减少地下水、石油、天然气、煤炭、以及其它矿藏的开采，保持地表形状；6.提高自身意识，做到人与自然和谐相处。SOLUSIONS1.Reduce the discharge of Co2: 一般将来时 (the future tense) 一般将来时表示在将来某一时间将要发生的动作或存在的状态，也可表示将来某一段时间内经常发生的动作或存在的状态。它常与表示将来的时间状语如soon, tomorrow, next week, in a

30、 few days, the day after tomorrow等连用。 结构：be going to +动词原形 will +动词原形 一般将来时 (the future tense)结构结构：肯定式: 主语+will +动词原形+其他 主语+ be going to+动词原形+其他否定式: 主语+will+not+动词原形+其他. 主语+ be not going to+动词原形+其他疑问式: Will+主语+动词原形+其他 Be +主语+ going to+动词原形+其他简略回答: (肯) Yes,主语+ be going to /will . (否) No,主语+ be not go

31、ing to /will+not 结构：肯定式: 主语+will +动词原形+其他next weekWhat is he going to do next week?He is going to go fishing.next weekWhat is he going to dthis eveningWhat is the mouse going to do this evening?It is going to do its homework.this eveningWhat is the mouse They are going to dance.What are they going t

32、o do ?They are going to dance.What aShes going to shop/ go shopping.What is she going to do?Shes going to shop/ go shoppiexercises 我明天要去看望我的奶奶。 几星期后我们要进行野餐。. 我妹妹下星期要去游泳。 星期天他们要去听音乐。I _ tomorrow.We _ in a few weeks.My sister _ next week.They _ on Sunday.am going to visit my grandmaare going to have a

33、 picnicis going to swimare going to listen to the music exercisesI _ 现在完成时1.概念 .现在完成时表示在过去某个时间做过的 ，发生过的事情，这种行为对目前的影响还存在，还可以表示到目前为止曾经经历或没有经历的事情。 2.它通常和already, yet, just, before, recently, ever, never, twice, 等词连用。现在完成时现在完成时的构成形式 have + done has过去分词主语+现在完成时的构成形式 have过去分词主语+规则动词过去分词的构成1. 一般在动词后直接加-ed构

34、成规则2. 以不发音的e结尾的动词， 直接加-d3.末尾只有一个辅音字母的 重读闭音节词，先双写这 个辅音字母，再加-ed 4.结尾是“辅音字母+y”的动词， 先变“y”为“i”再加-ed 例词look lookedplay playedlive livedhope hopedstop stoppedplan plannedstudy studiedcarry carried规则动词过去分词的构成1. 一般在动词后直接加-ed构成规则不规则动词过去分词的构成1. 三个主要动词 is, ambe arewaswerebeenhave/hashadhaddo/doesdiddone不规则动词过去分

35、词的构成1. 三个主要动词 2. AAA型 （三者一致）cut cut cutlet let letput put putcost cost cost read read read2. AAA型 （三者一致）cut 3. ABA型 （过去分词与原形一致）come came comebecome became becomerun ran run3. ABA型 （过去分词与原形一致）come 4. ABB型 （过去分词与过去式一致）bring brought broughtfind found foundhear heard heardkeep kept keptmake made made此外还

36、有leave, win, tell, spend, say，meet等等。4. ABB型 （过去分词与过去式一致）bring 5. ABC型 （三者不一致）eat ate eatengive gave givenwrite wrote writtensee saw seenget got gottenbegin began begun此外还有go, take, know, speak, swim等等。5. ABC型 （三者不一致）eat .肯定句：主语 have/has+过去分词其他成分。现在完成时态的句式：.否定句：主语have/has+not+过去分词其他成分。 3.一般疑问句：Have/

37、Has+主语过去分词其他成分？ 4.特殊疑问句：特殊疑问词have/has其他成分？肯定句：I have cleaned my bedroom.否定句：I havent cleaned my bedroom.一般疑问句：Have you cleaned your bedroom?.肯定句：主语 have/has+过去分词其他成分。现在完成时在过去不确定时间发生，但对现在造成了影响。Tom：Hi, Sam. We are having lunch.Do you want to have lunch with me?Sam: No, thank you.I have already had lun

38、ch.I had lunch at 12:30.现在完成时的构成： have/has + 动词的过去分词现在完成时1） 标志词:already:yet:多用于陈述句，位于have/has后，有时位于句末。e.g. I have already finished my homework.用于疑问句和否定句，位于句尾。e.g. Have you found your lost book yet ? I havent had breakfast yet.ever :never:多用于疑问句，问初次经历。e.g. Have you ever been to Beijing?用于否定句，位于have/h

39、as后e.g. He has never argued with other people.just :before:多用于陈述句，位于have/has后可用于各句式，位于句尾。e.g. Lucy has just washed her clothes. e.g. He hasnt been abroad before.1） 标志词:already:多用于陈述句，位于have/h2）无标志词的：e.g. He is not feeling well now. He has caught a cold. I have lost the key. I cant go into my room.2）

40、无标志词的：e.g. He is not feelingExercises1. I _(have) lunch already.2. Has the train_ (arrive), yet?3.Tome _ never_ (be to ) China.4. The twin _just _(see) my father.have hadarrivedhasbeen tohasseenExercises1. I _(have) eg: We have lived in this city for ten years.He has been there in the rain for an ho

41、ur.She has taught in this school since two years ago.We have known each other since we met.2.表示开始于过去并持续到现在的动作. ( 动词：延续性，时间：到现在) eg: 2.表示开始于过去并持续到现在的标志词:1）for +一段时间e.g. We have lived in this city for ten years.2）since +过去点时间 since +一段时间+ago since +从句（从句用一般过去式）标志词: 3） so far, once/twice/ three times ,all ones lifee.g. They have learnt 2000 words so far. Tom has seen the fil