Unit 3Words and expressions ppt课件-（2019版）新人教版选择性必修第三册高中英语.pptx

1、 选择性必修选择性必修Unit 3 Environmental protectionWords and Expressions To learn some useful words and expressions To learn the usage of the words and expressions To learn more important expressions in the reading passage and try to master them.话题词汇meltstarvefloods/floodingSea-level rise droughts greenhouse

2、 effect重重点点词词汇汇Listening to the tape and reading after the tape (Pages108-109).1. emission imn: n._ 2. ecology ikldi: n._3. habitable hbtbl: adj. _4.sustain ssten: vt._5. melt melt: vi. & vt._6. restrict rstrkt: vt. _7.release rlis: vt. & n. _排放物；散发物；排放排放物；散发物；排放生态；生态学生态；生态学适合居住的适合居住的维持；遭受；承受住维持；遭受；

3、承受住(使使)融化；熔化；软化融化；熔化；软化限制，限定；束缚限制，限定；束缚排放；释放；发布排放；释放；发布8._vi. & vt. (使)挨饿；饿死9. _adj. 全部的；所有的；详尽的10. _n. 趋势；趋向；动向11._ adv. 频繁地；经常12. _adj. 和谐的13. _vt. & vi. 提交；呈递；屈服14._adj. 适度的；中等的；温和的 starve stvcomprehensive trend trendfrequently harmonious submit sbmtmoderate 积积累累词词汇汇(1)melt vi.& vt. (使)融化；熔化；软化me

4、lting adj. 融化的；熔化的融化的；熔化的melt down 将熔化melt into 溶解成；消散在中melt away 消失，消散；逐渐散去Self-LearningSelf-Learningstarvation n. 饥饿；饿死starve to death 饿死starve sb out 用饥饿迫使某人屈服starve for sth 渴望得到某物release from 从(某物)中释放release of 解除，使放出release to 向发行trendy adj. 时髦的；赶时髦的trend of 的形势 trend in 的趋势 set a/the trend 开风气

5、之先，带领新潮流broadcast sth to sb/sth (向)传播，乱传broadcast on/upon 用广播；播放的新闻live broadcast 现场直播worldwide broadcast 向世界广播reform . into . 把改造成reform sb through sth 通过改造(某人)reform of 的改革moderate in 在方面稳健的/有节制的submit sth to sb 向呈交submit to sb/sth/v.ing 服从某人/某事/做某事be sensitive to 对敏感be sensitive about 在乎，在意restor

6、e to 恢复到restore sb/sth to sth 使某人/某物恢复原状restore belief/faith in sth 恢复对的信任at sbs disposal 任某人处理；供某人任意使用；由某人自行支配disposal of 的处理；的处置权 dispose of sb/sth 去掉；清除；处理fine sb for sth/v.ing 因而罚(款)fine sb sth for sth/v.ing 因而罚某人pay a fine 交罚款there is no/little doubt.这一句式常用于这一句式常用于表达对某件事百分之百确定，其后常接表达对某件事百分之百确定，

7、其后常接that引起的从句。在肯定句中，引起的从句。在肯定句中，doubt后面后面有时可跟有时可跟whether引导的从句。引导的从句。例如：例如：1.There is no/little doubt that he is telling a lie.毫无疑问，他在说谎。毫无疑问，他在说谎。2.There is some doubt whether we can complete the task before the deadline.我们是否能在截止日我们是否能在截止日 期前完成期前完成任务值得怀疑任务值得怀疑。这句话的主语是这句话的主语是 A warming ocean and atmo

8、sphere, 而而 along with melting ice and rising sea levels 是伴随状语。是伴随状语。provide evidence of意为意为“证明；证实了；证明；证实了；提供提供 的证据的证据，此处，此处evidence为不可数名词。为不可数名词。 例如：例如：Fossils provide evidence of how animals have evolved to survive in their environment.化石为动物化石为动物 在环境中在环境中进化生存的过程提供了证据。进化生存的过程提供了证据。appear to have sta

9、rved中中starve这个动作发这个动作发生在生在appear这个动作之前，所以要用完成式的这个动作之前，所以要用完成式的形式形式 来表达。此句可以转化为来表达。此句可以转化为 it appeared that the bear had starved and diedoappear后可以接不定式的一般式、进行式或完后可以接不定式的一般式、进行式或完成式，表示时间先后关系。成式，表示时间先后关系。 例如：例如：(1 ) 一般式一般式:It appears to rain this afternoon.今天下午看起来要下雨。今天下午看起来要下雨。(2 )进行式：进行式：He appears t

10、o be making fast progress in his research,看起来他看起来他在研究方面正取得在研究方面正取得 快速进展。快速进展。(3 )完成式：完成式：She appeared to have known the truth.她看起来好像已经知道她看起来好像已经知道真相了。真相了。trap意为意为“诱捕；使陷入困境；留住诱捕；使陷入困境；留住”。例如：。例如：Hunters live by trapping animals.猎人们靠猎人们靠捕猎动物为生。捕猎动物为生。Sand and leaves trapped the water in the stream.沙石和

11、树叶淤住了溪流。沙石和树叶淤住了溪流。keeping Earths climate warm and habitable在这里是现在分词作结果状语，在这里是现在分词作结果状语，修饰修饰trap这个动词。这个动词。with more household and commercial waste ending up in the river在句中充当状在句中充当状语，是语，是 with 的复的复 合宾语结构。合宾语结构。ending up in the river 的逻辑主语是的逻辑主语是 more household and commercial wasteo 类似的结类似的结 构在英语构在英语

12、中很常见，中很常见，With time going by, I gradually learnt how to cope with stress in my life.随随着时间的流逝，我逐着时间的流逝，我逐 渐学会了如何应对渐学会了如何应对生活中的压力。生活中的压力。with的复合宾语结构组成多为的复合宾语结构组成多为“with+宾宾语语+形容词形容词/副词副词/介词短语介词短语/现在分词（短现在分词（短语）语）/过去过去 分词（短语）分词（短语）/不定式（短语）不定式（短语）” 例如：例如：The teacher came in, with a book in his hand.老师进来了

13、，手里拿着一本书。老师进来了，手里拿着一本书。I sat in my room for a few minutes with my eyes fixed on the ceiling.我在我在房间坐了一会儿房间坐了一会儿眼睛眼睛 盯着天花板。盯着天花板。With so much work to do, I cant go out with you,有这么多工作要做，我不有这么多工作要做，我不能和你出去。能和你出去。 Step6 practice(1)melt vi.& vt. (使使)融化；熔化；软化融化；熔化；软化 adj. 融化的；熔化的融化的；熔化的(2)starve vi.& vt.

14、(使使)挨饿；饿死挨饿；饿死 n. 饥饿；饿死饥饿；饿死(3)trend n. 趋势；趋向；动向趋势；趋向；动向 adj. 时髦的；赶时髦的时髦的；赶时髦的(4)restrict vt. 限制；限定；束缚限制；限定；束缚 n. 限制规定；限制法规；约限制规定；限制法规；约束束(5)reform vi.& vt. 改革；改革； (使使)改正；改造改正；改造 n. 改革；变革；改良改革；变革；改良n. 改革者；改良者改革者；改良者(6)moderate adj. 适度的；温和的适度的；温和的 vi.& vt. 缓和；使适中缓和；使适中adv. 适度；适量；适中适度；适量；适中(7)submit v

15、t.& vi. 提交；呈递；屈服提交；呈递；屈服 n. 屈服；归顺；提交；屈服；归顺；提交；呈递呈递(8)sensitive adj. 敏感的；善解人意的；灵敏的敏感的；善解人意的；灵敏的adv. 敏感地；敏感地；易受伤害地易受伤害地(9)restore vt. 恢复；使复原；修复恢复；使复原；修复n. 整修；修复；整修；修复；(规章制度规章制度等的等的)恢复恢复(10)disposal n. 去掉；清除；处理去掉；清除；处理 v. 去掉；清除；处理去掉；清除；处理Step6 practice(1)melt vi.& vt. (使使)融化；熔化；软化融化；熔化；软化 adj. 融化的；熔化的融

16、化的；熔化的(2)starve vi.& vt. (使使)挨饿；饿死挨饿；饿死 n. 饥饿；饿死饥饿；饿死(3)trend n. 趋势；趋向；动向趋势；趋向；动向 adj. 时髦的；赶时髦的时髦的；赶时髦的(4)restrict vt. 限制；限定；束缚限制；限定；束缚 n. 限制规定；限制法规；约限制规定；限制法规；约束束(5)reform vi.& vt. 改革；改革； (使使)改正；改造改正；改造 n. 改革；变革；改良改革；变革；改良n. 改革者；改良者改革者；改良者(6)moderate adj. 适度的；温和的适度的；温和的 vi.& vt. 缓和；使适中缓和；使适中 adv. 适

17、适度；适量；适中度；适量；适中(7)submit vt.& vi. 提交；呈递；屈服提交；呈递；屈服 n. 屈服；归顺；提交；屈服；归顺；提交；呈递呈递(8)sensitive adj. 敏感的；善解人意的；灵敏的敏感的；善解人意的；灵敏的adv. 敏感地；敏感地；易受伤害地易受伤害地(9)restore vt. 恢复；使复原；修复恢复；使复原；修复n. 整修；修复；整修；修复；(规章制度规章制度等的等的)恢复恢复(10)disposal n. 去掉；清除；处理去掉；清除；处理 v. 去掉；清除；处理去掉；清除；处理meltingstarvationtrendyrestrictionrefor

18、mermoderatelysubmissionsensitivelyrestorationdispose1.At that time people would s if food was difficult to find. 2.Flora Landscape acts as an important role of society and (生态生态) in the urban landscape. 3.Before (释放释放),the sea lions are fitted with electronic tracking devices. 4.Plants absorb c diox

19、ide from the air and moisture from the soil. 5.The love and support of his family (维持维持) him during his hard times. 6.Would you please keep silent?The weather report is being b and I want to listen. 7.The cramped living conditions severely _(限制限制) the childrens freedom to play. 8.Jane was quick to s

20、 the meaning of what the teacher said at the meeting. 9.Our government is trying to (采采取措施取措施)to prevent and control pollution. 10.As far as Im concerned,concentration on your studies will (导致导致,以以为为结局结局)good grades. 1.At that time people would if food was difficult to find. 2.Flora Landscape acts a

21、s an important role of society and (生态生态) in the urban landscape. 3.Before (释放释放),the sea lions are fitted with electronic tracking devices. 4.Plants absorb c dioxide from the air and moisture from the soil. 5.The love and support of his family (维持维持) him during his hard times. starveecologyreleasec

22、arbonsustained6.Would you please keep silent?The weather report is being and I want to listen. 7.The cramped living conditions severely _(限制限制) the childrens freedom to play. 8.Jane was quick to the meaning of what the teacher said at the meeting. 9.Our government is trying to (采取措采取措施施)to prevent a

23、nd control pollution. 10.As far as Im concerned,concentration on your studies will (导致导致,以以为结为结局局)good grades. broadcastrestrictedseizetake measuresresult in专家称，气候变化导致了海冰面变低，这意味着北专家称，气候变化导致了海冰面变低，这意味着北极熊不能像以前那样捕猎海豹，所以它必须长途跋极熊不能像以前那样捕猎海豹，所以它必须长途跋涉才能找到食物。涉才能找到食物。有充分而全面的证据表明，温度的上升已导致世界有充分而全面的证据表明，温度的上升

24、已导致世界范围内极端天气的产生和自然灾害的增加，这不仅范围内极端天气的产生和自然灾害的增加，这不仅会造成严重破坏，而且会危及人类生命。会造成严重破坏，而且会危及人类生命。持续的温室气体排放将导致进一步的气候变暖和持持续的温室气体排放将导致进一步的气候变暖和持续的全球气候变化。续的全球气候变化。本报告着眼于水污染问题以及已经采取的一些措本报告着眼于水污染问题以及已经采取的一些措施。施。有了这些措施，人们相信漓江的美丽将会被保存有了这些措施，人们相信漓江的美丽将会被保存下来留给后代。下来留给后代。 Homework 1. Finish workbook using words and expressions on Page 75.2. Find out the language points in the text.