202X_202X学年高中英语Unit2Workingtheland单元重点小结课件新人教版必修4

1、-1-单元重点小结单元重点小结单元重点小结重点词汇 1.struggle vi.& n. struggle against/with和做斗争;struggle to ones feet挣扎着站起来;struggle for为而努力/挣扎;struggle to do sth.努力做某事例如:The old woman fell on the ground and she struggled to her feet.那位老太太摔倒在地,她挣扎着站起来。2.expand vt.& vi. 使变大;伸展 n. 膨胀 expand to扩展到;expand into扩张成为;expand on进一步论

2、述3.circulate vi.& vt. 循环;流传 n.循环 circulate.to.向传播;circulate among在中间流通;in circulation流通;o circulation把投入流通斗争;拼搏;努力 expansioncirculation单元重点小结4.thanks to 同义词组:due to,as a result of,owing to,because of例如:Thanks to his sisters advice,he has made great progress in his English.幸亏他姐姐的建议,他的英语取得了很大进步

3、。5.be satisfied with对感到满意be satisfied to do sth.对做某事感到满意;satisfy the needs/demands of sb.满足某人的需要/需求;be satisfied that.确信 n.满意;to ones satisfaction令某人满意的是;satisfying adj. 令人满意的;satisfactory adj.满意的 幸亏;由于;因为satisfaction单元重点小结6.would rather宁愿;宁可would rather do.than do.宁愿做而不愿做;would rather后接从句时,从句要用虚拟语气

4、,即从句用一般过去时表示现在或将来的愿望;用过去完成表示过去的愿望。例如:He would rather his father stayed at home.他宁愿他的父亲待在家里。7.therefore adv. 因此;所以;因而同义词:so,thus8.equip vt.& vi. 装配;配备equip.with.;equip.for.给配备;be fully/well/poorly/specially equipped装备齐全/完好/较差/独特 n. 设备 例句:We have to equip our office with a printer,dont we?我们办公室应该配备有一台

5、打印机,是吗?用装备equipment单元重点小结9.regret vt. 遗憾;惋惜n. 惋惜;懊悔regret doing sth.;regret to do sth.;to ones regret ;with regret regretful adj. 感到后悔的;regrettable adj. 令人遗憾的,可惜的例如:Do you regret helping a person like him?你后悔帮助过像他那样的人吗?10.lead to导致;造成(后果)take the lead in sth.在某方面领先;(be) in the lead领先leadership n.领导后

6、悔做了某事遗憾去做某事使某人感到遗憾/可惜的是遗憾地单元重点小结11.focus on in focus焦点对准;out of focus模糊的;o focus给对好焦距例如:All his attention was focused on what he was doing.他所有的注意力都集中在他正在做的事情。12.reduce vt. 减少;减缩be reduced to沦落为,减少/降低到;be reduced by.减少/降低了reduction n. 缩小;减少;make a reduction减价ment n.& v. 评论;议论comment on对评论;no

7、 comment无可奉告例如:They never comment on what Im doing.他们从未对我做的事情进行评论。集中(注意力、精力等)于单元重点小结重点短语 1. 幸亏;由于;因为2.使摆脱或除去 3.对感到满意4.宁愿;宁可 5.逐渐增强;建立;开发6.导致;造成(后果)7.集中(注意力、精力等)于 8.使免受(影响、伤害等);使不含(有害物)thanks torid.ofbe satisfied withwould ratherbuild uplead tofocus onkeep.free from/of单元重点小结重点句型 1.,what did you do to

8、 grow them?如果种过,你是如何种的?2.Yuan Longping grows super hybrid rice.袁隆平种植的是被称为“超级杂交水稻”的稻种。3.This special strain of rice possible 20% more of the crop in the same fields.这种特殊的稻种使得同样的田地多收获20%的产量。4.Using his hybrid rice,farmers are producing harvests .用他的杂交水稻种子,农民们种出的粮食比以前多了一倍。5.Over the past half century,u

9、sing chemical fertilizers in farming.在过去的半个世纪里,在耕作中使用化肥已经很普遍。If sowhat is calledmakes itto producetwice as large as before has become very common单元重点小结重点语法The -ing form as the Subject and Object(-ing形式作主语和宾语)1.I can imagine him (drive) his new car.2.(get) water from wet to dry places is necessary.3.

10、(learn) more about farming is not difficult.4.He admitted (make) a terrible mistake.5.How I regret (talk) with that old man about the accident!drivingGettingLearningmakingtalking单元重点小结功能 Persuasion(劝说)Id rather.我宁愿Id prefer.because.我更喜欢因为If I have a choice Ill choose.如果我可以选择,我将选择Its better to.最好I do

11、nt like.because.我不喜欢因为Its a great pity that.真是遗憾。You need to.你需要The advantages are.好处是Whats the advantage of.?的好处是什么?单元重点小结书面表达写作技巧书面表达写作技巧1遵循遵循“三四五六三四五六”写作原则写作原则一、培养三种能力审题能力:为什么写作、要传递什么信息、要说明什么问题、要表达什么思想等;表达能力:表达内容明确、语言简洁、地道、流畅,词汇丰富,有自己的见解等。当然,要注意书写美观,字数合适,标点恰当。组织能力:思路清晰、内容条理,逻辑性强,主题突出。二、坚持“四性”原则思路

12、条理性:思路表达要清晰,层次要分明,逻辑性强。表达准确性:词汇、短语、句式要准确运用。语言流畅性:使用适当的过渡词或者过渡句,以使行文流畅,语言连贯,表达清楚。句式多样性:句式要多样,串联要巧妙。单元重点小结三、达到 “五美” 效果完成的作文要做到:内容美、语言美、衔接美、结构美和卷面美。四、遵循 “六个” 步骤一定框架:确定主题和段落结构,审定人称、主体时态等框架内容。二列要点:根据题目提示,提炼出写作要点,并根据要点写出主体句子。三连句子:把罗列的词汇或者短语连接成句子,然后把句子用恰当的过渡句或者衔接词连接成文。四磨语言:综合运用过渡语的使用、长短句的搭配、倒装、非谓语动词、强调句型、独

13、立主格、复合句的使用、高级词汇等手段进行美化打磨,以达到地道、流畅、一气呵成的效果。单元重点小结五要检查:检查大小写、标点、时态、语态、主谓一致等文章的一致性,纠正修改错误或者不连贯的地方。六要认真誊写:将草稿快速、工整地誊写到试卷上,注意卷面整洁美观。单元重点小结【文章导读】科学家袁隆平带领的抗海水水稻研发团队近日对在迪拜热带沙漠实验种植的水稻进行测产,最高产量超过每公顷7.5吨。这是全球首次在热带沙漠实验种植水稻取得成功,为沙漠地区提升粮食自给能力、保障全球粮食安全和改善沙漠地区生态环境再添“中国贡献”。Famous Chinese agricultural scientist Yuan

14、Longping and his research teams experiment of planting saltwater-tolerant rice in desert areas of Dubai (迪拜)in the United Arab Emirates proved to be a success,with one type of rice producing more than 7.5 tons per hectare(公顷),Xinhua reported.单元重点小结Saltwater-tolerant rice is designed to grow in tidal

15、 flats(潮滩地) or other areas with heavy salt content.It was the worlds first successful case of planting rice in a tropical desert area,standing as Chinas contribution to improving the ability of people in desert areas to be self-sufficient(自给自足的) in main foods,a move that can protect global food secu

16、rity and improve the desert ecological environment.In January,the center chose dozens of types of hybrid rice and planted them on small places of desert areas near Dubai.After five months of growth,the center invited experts from India,Egypt,the United Arab Emirates and other countries for evaluatio

17、n,and found three types of rice producing more than 6 tons per hectare.In June,a second evaluation will be carried out for middle-season rice.单元重点小结The technology of saltwater-tolerant rice plays a key role in the success as the natural environment of the Dubai desert is terrible for rice growth.The

18、 daytime temperatures could be as high as over 50,and nighttime temperatures could drop by 30.Humidity(湿度) stays below 20 percent and there are sandstorms from time to time.The biggest challenge is the desert soil,which is low in organic matter and unable to keep soil moisture as it is totally sand.To make it worse,sea water remains just 7.5 meters below the soil,which makes it easy to be full of salt.With this success,the center and the private investment office of the ruler of the Emirate