综合英语2 Unit 4 water cycleppt课件
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Unit4WaterCycleUnit 4 Water CycleObjectivesA Topics and functionsExpressing different degrees of certaintiesTalking about wastewater treatment and environmental protectionScience/technology/resources?impact on environmentB Language knowledgeWorda and phrases for talking aboutDifferent degrees of certainties such as those in scientific articles or everyday conversationScientific knowledge such as wastewater treatment and computer scienceWater/energy efficiency and greenhouse effectsPart 1 communicative activitiesPay attention to these sentencesHe must?ve missed ...I give you my word for itI?ll bet...I haven?t a clue about...I don?t think there can be any about...There is no/very little doubt in my mind...It?s/that?s my cinviction...It?s quite certain t hat...There;s quite certain that...There?s some doubt in my mind about...One can?t say with any certainty that...I?m quite convinced...I?m afraid I can?t be certain about...There …s still an element of doubt about...ProverbThe unexpected always happens意外总是会发⽣How much do you know about SingaporeWhat else are you interested to know about this little city-stateSingapore , officially the Republic of Singapore, is a southeast Asian city-state off the southern tip of the Malay Peninsula,137 kilometres (85 mi) north of the equator. An island country made up of 63 islands, it is separated from Malaysia by the Straits of Johor柔佛海峡to its north and from Indonesia…s Riau 廖内群岛Islands by the Singapore Strait to its south. The country is highly urbanized with very little primary rainforest remaining, although more land is being created for development through land reclamation.新加坡共和国是位于马来半岛南端的⼀个岛国。
Unit4 Water Cycle1.Impact on2.Molecule n.分子3.stream n.&v. 小河,溪流,一串,潮流steamn.&v.蒸汽,冒蒸汽,蒸煮4.bathtub n.浴缸,澡盆5.flush a.&v.&n.冲刷,清除,脸红,齐平的,富裕的,激动,喜悦6.marvel n.&v.奇迹,惊奇,对…感到惊奇7.institution n.惯例,习俗,制度,名流,慈善机构,建立,制定,知名人士8.estimate n.&v.估价,估计,报价,判断9.preliminary a.&n.初步的,预备的,准备工作10.mechanical a.机械的,力学的,呆板的11.byproduct n.副产品,意外结果,副作用12.convince vt.使相信,使明白13.category n.种类,类别14.city-state n.(古希腊的)城邦15.toilet-to-tap16.shortage n.不足,缺少,不足额,缺少量17.pipe n.&v.管子,管道,烟斗,笛子,传送18.port n.港口,商港,港埠19.independence n.自主,自立,独立20.bootstrap n.解靴带21.in spite of 虽然,尽管…22.utility n.功用,效用,公共事业23.short-circuit v.使发生断路,缩短24.island-ringing25.loop n.&v.圈,环,环状物,回路,循环26.relish n.&vt.滋味,美味,乐趣,泡菜酱27.rejuvenate vt.使变得年轻,使恢复活力28.intensive a.加强的,集中的,密集的29.aquifer n.地下蓄水层,砂石含水层30.radical a.根本的,基本的,彻底的,激进的31.unveil v.揭去…的面罩,揭露出来,公之于众32.ultimate a.最后的,极限程度的,基本的33.strategy n.战略学,兵法,策略,计谋34.filter n.&v.过滤,过滤器,透过,走漏35.security n.安全,抵押品,有价证券36.microbe n.微生物,细菌37.viruse n.病毒,病毒性疾病,恶毒,恶意38.impurity n.不纯,不洁,淫秽,杂质39.emphasis n.强调,重点40.purity n.纯,纯洁,纯正,洁净41.sparkle vi.&n.发火花,闪耀,活力,闪光42.debut n.演员首次演出43.。
综合教程2unit4
综合教程2单元4是有关环境保护的主题。
这个单元主要讨论了一些重要的环境问题,例如气候变化、空气污染、水污染和垃圾问题。
在课程中,我们学习了气候变化对地球所造成的影响。
气候变化导致了全球气温上升,冰川融化,海平面上升,极端天气事件增多等。
这对地球和生物多样性产生了严重的威胁。
我们还研究了空气污染带来的健康影响。
空气污染包括来自车辆尾气和工厂排放的有害物质,这些物质对人体的健康有害。
学习了这些问题后,我们认识到我们需要采取行动来减少空气污染,并提升环境质量。
另外,水污染也是单元中的一个重要话题。
许多河流和湖泊遭受到了工业废水和农业污水的损害。
水污染不仅危害水生生物,也对人类的健康构成威胁。
我们学习了水污染的原因和可能的解决办法,以便保护我们的水资源。
最后,我们探讨了垃圾问题,并学习了如何正确地处理和回收垃圾。
随着人口的增长和消费水平的提高,垃圾问题已经成为一个全球性的挑战。
我们需要采取措施来减少垃圾产生,提高垃圾的回收率,以保护我们的环境和资源。
通过学习这些环境问题,我们认识到环境保护对于我们和我们的后代的生存和发展至关重要。
我们每个人都应该意识到自己
的责任,并采取行动来保护我们的地球。
只有通过共同努力,我们才能建立一个更美好的未来。