Unit 2 Reading and thinking 语言点（ppt课件）-新外研版（2019）《高中英语》必修第二册.pptx

1、必修二 Unit 2 WILD PROTECTIONlanguage pointssnow-covered 被雪覆盖的n-past participle=形容词使用这种构词法的例子如：The air is thin and we have to rest several times on the short hike from camp.To our left,snow-covered mountains disappear into clouds that seem almost close enough to touch.定语从句，先行词为clouds，关系词为that,在定语从句中作主语

2、，不可以省略，定语从句的谓语动词单复数由先行词的单复数来决定，故为seem空气稀薄，在离开营地的短途徒步旅行中，我们不得不多次休息。空气稀薄，在离开营地的短途徒步旅行中，我们不得不多次休息。在我们的左边，白雪皑皑的山脉在我们的左边，白雪皑皑的山脉 消失消失 在在 似乎触手可及的似乎触手可及的 云层中云层中。snow-covered 被雪覆盖的 n(名词）-past participle（过去分词）=形容词使用这种构词法的例子如：hand-made 手工制成的手工制成的 heart-broken 伤心的伤心的 heart-felt 衷心的衷心的On the plain in front of u

3、s,we can just make out a herd of graceful animals.This is why were hereto observe Tibetan antelopes.放眼平原，我们隐约看到一群体形优美的动物。放眼平原，我们隐约看到一群体形优美的动物。这就是我们来这里的原因这就是我们来这里的原因-观察观察藏羚羊藏羚羊。一群一群make out 看清;听清;分清【词汇拓展词汇拓展】make up 化妆;构成;编造;和好make up for 弥补,补偿make sense 有意义;讲得通make sense of 理解;明白make way for 给.让路mak

4、e progress 取得进步make it 成功获得;准时到达,赶上，渡过难关表语从句，说明主语是什么This is why were hereto observe Tibetan antelopes.This is why.这就是这就是的原因。的原因。why后接表示结果的内容后接表示结果的内容。(1)This is because.这是因为这是因为because引导表语从句时，表示事情的原因。引导表语从句时，表示事情的原因。(2)The reason why.is that.的原因是的原因是主语是主语是 The reason时，表语从句常用时，表语从句常用that引导，而不用引导，而不用

5、because，且，且that一般不能省略。一般不能省略。动词不定式短语动词不定式短语 解释目的，是解释目的，是“we are we are here to observe Tibetan antelopes.here to observe Tibetan antelopes.”的省略的省略She was too busy.That is why she didnt join in the party last night.改成改成 This is because.She didnt join in the party last night.Thats because she was too

6、busy.改改成成 The reason is that.The reason why she didnt join in the party last night was that she was too busy.II.写出下列句中observe的含义:1.Therefore,rules should be worked out and strictly observed._2.It is a tradition for the people here to observe the Spring Festival._3.The scientist devoted most of his l

7、ifetime to observing the behaviour of the chimps._4.The thief was observed to open the window and run away._ 遵守 庆祝 观察 注意到【归纳归纳】observe sth.观察某物观察某物observe sb.do sth 观察某人观察某人做了做了某事（全过程）某事（全过程）observe sb.doing sth.观察某人观察某人正在正在做某事做某事observe the traffic rules 遵守交通规则遵守交通规则【点津点津】observe sb.do sth.结构如果改成被动

8、语态，结构如果改成被动语态，应补上省略的应补上省略的to，即即 sb.be observed to do sth.【语境应用】单句语法填空【语境应用】单句语法填空1)I was searching for these three western lowland gorillas Id been _(observe).2)When I passed his house,I observed him _(play)in his yard.3)Last night Bruce was observed _(leave)the building with two young men and take

9、a taxi away.observingplayingto leave【拓展拓展】observer n.观察者；旁听者；评论员观察者；旁听者；评论员observation n.观察，评论观察，评论 Tibetan antelopes live on the plains of Tibet,Xinjiang,and Qinghai.Watching them move slowly across the green grass,Im struck by their beauty.藏羚羊生活在西藏、新疆和青海的平原上。藏羚羊生活在西藏、新疆和青海的平原上。看着它们缓缓穿过绿色的草，我被它们的美丽

10、所看着它们缓缓穿过绿色的草，我被它们的美丽所打动。打动。strike-struck-struck 击打；罢工击打；罢工be struck by:被被打动打动/触动触动现在分词伴随状语现在分词伴随状语现在分词（短语）作状语表示现在分词（短语）作状语表示时间、原因、条件、伴随、方时间、原因、条件、伴随、方式或结果式或结果。从。从时间时间上看，现在分词的一般式表示的动作与谓上看，现在分词的一般式表示的动作与谓语动词表示的动作语动词表示的动作同时发生或几乎同时发生同时发生或几乎同时发生；从；从语态语态上看，上看，现在分词往往表示现在分词往往表示主动的动作主动的动作，它的逻辑主语是句子的主语。，它的逻辑

11、主语是句子的主语。现在分词否定式:not+现在分词He dropped the glass,breaking it into pieces.他把玻璃杯弄掉了,结果杯子摔得粉碎。单句填空A city is the product of the human hand and mind,(reflect)mans intelligence and creativity.Anxiously,she took the dress out of the package and tried it on,only(find)it didnt fit.(find)the course very difficul

12、t,she decided to move to a lower level.【名师点津名师点津】(1)现在分词表示结果时,指自然而然的结果。(2)不定式也可以表示结果,是出乎意料的结果,且多与only或just连用。reflecting to find Finding Im also reminded of the danger they are in.They are being hunted,illegally,for their valuable fur.我我也想起了它们所处的险境。也想起了它们所处的险境。因因其珍贵的其珍贵的皮毛皮毛，它们正遭受非法猎杀。，它们正遭受非法猎杀。省略省略

13、that引导的定从，修饰引导的定从，修饰danger v.使想起；提醒使想起；提醒v.猎杀猎杀非法地非法地宝贵的宝贵的20.remind vt.提醒提醒;使想起使想起*In case I forget,please remind me of my promise.假如我忘记了假如我忘记了,请提醒一下我的诺言。请提醒一下我的诺言。【语块积累语块积累】(1)提醒某人某事提醒某人某事 提醒某人去做某事提醒某人去做某事remind sb.that/wh-从句从句 ;(2)remindern.令人回忆起的东西;提醒的东西;(告知该做某事的)通知单remind sb.of sth.remind sb.to

14、 do sth.提醒某人提醒某人.【即学活用即学活用】语法填空语法填空(1)The photo will remind me _the days when we were together.(2)We put up a board to remind people _(protect)the trees.(3)I have to remind myself _I have traveled to the year AD3005.(4)These notes can remind me _I have learned in class.ofto protectthatwhatMy guide i

15、s Zhaxi,a village from Changtang.He works at the Changtang National Nature Reserve.The reserve is a shelter for the animals and plants of northwestern Tibet.保护区保护区避难所、庇护所避难所、庇护所我的向导是羌塘的一位村民扎西。我的向导是羌塘的一位村民扎西。他在羌塘国家级自然保护区工作。他在羌塘国家级自然保护区工作。该保护区是该保护区是 西藏西北地区动植物的西藏西北地区动植物的 庇护所庇护所。To Zhaxi,the land is sac

16、red and protecting the wildlife is a way of life.“Were not trying to save the animals,”he says.“Actually,were trying to save ourselves.”对于扎西来说，这片土地是神圣的，保护野生动植物是一种生活方式。对于扎西来说，这片土地是神圣的，保护野生动植物是一种生活方式。“我们不是在拯救动物。我们不是在拯救动物。”他说到，他说到，“事实上，我们是在拯救自事实上，我们是在拯救自己。己。”神圣的神圣的主语主语介词by 表示增加或减少的幅度，如：increased by 5,0

17、00，增加了5,000个介词to 表示增加或减少到某个程度，to+增加或减少后的数字，如：incresed to 5,000，增加到5,000个The 1980s and 1990s were bad times for the Tibetan antelope.The population dropped by more than 50 percent.对于对于藏羚羊来说，上个世纪藏羚羊来说，上个世纪8080年代和年代和9090年代是一个悲惨的时代。年代是一个悲惨的时代。藏羚羊的数量减少了藏羚羊的数量减少了5050以上。以上。介词by 表示增加或减少的幅度，如：increased by 5,

18、000，增加了5,000个介词to 表示增加或减少到某个程度，to+增加或减少后的数字，如：incresed to 5,000，增加到5,000个 Hunters were shooting antelopes to make profits.Their habitats were becoming smaller as new roads and railways were built.猎人为了赚钱而射杀羚羊。猎人为了赚钱而射杀羚羊。随着随着新公路和铁路的修建，它们的栖息地也不断缩小。新公路和铁路的修建，它们的栖息地也不断缩小。过去进行时过去进行时不定式表目的不定式表目的利益利益In ord

19、er to save this species from extinction,the Chinese government placed it under national protection.为了使这个物种免于灭绝，中国政府将其置于国家保护之下。为了使这个物种免于灭绝，中国政府将其置于国家保护之下。物种物种灭绝灭绝place v.放置放置place.under sbs protection 把把.置于置于.的保护下的保护下Zhaxi and other volunteers watched over the antelopes day and night to keep them saf

20、e from attacks.扎西和其他志愿者昼夜守卫着羚羊，保护它们免受攻击。扎西和其他志愿者昼夜守卫着羚羊，保护它们免受攻击。看守看守;监视监视;守护守护;照管照管keep sb safe from.保护安全免受.的危险/危害attack n,vi&vt 攻击，抨击攻击，抨击 be under attack 受到攻击受到攻击 attack on/against 向向攻击攻击Bridges and gates were added to let the antelopes move easily and keep them safe from cars and trains.新增的一些桥梁和

21、涵洞，便于藏羚羊自由穿行，防止他们撞上汽车新增的一些桥梁和涵洞，便于藏羚羊自由穿行，防止他们撞上汽车和火车。和火车。add v.增加增加不定式表目的不定式表目的The measures were effective.The antelope population has recovered and in June 2015,the Tibetan antelope was removed from the endangered species list.这些措施效果明显。这些措施效果明显。藏羚羊的数量已经恢复。藏羚羊的数量已经恢复。20152015年年6 6月，藏羚羊从月，藏羚羊从 濒危物种名

22、单濒危物种名单 中被中被剔除。剔除。措施措施有效的有效的恢复恢复移走移走endanger v.危害危害濒于灭绝的濒于灭绝的recover vi.恢复，康复 vt.找回，找寻recover from_ recover oneself _ recovery n.恢复，痊愈；复得，找回make a recovery from 从中恢复过来make a full/quick/slow recovery 完全康复/恢复很快/缓慢前缀re-表示“重”“又”“再”等含义。类似的还有repeat（重复），return（回来），rebuild（重建），review（复习），rewrite（重写，改写）等。即学活

23、用(1)She recovered_ her surprise,and answered calmly.(2)About some minutes later,the girl recovered_（her）.(3)To his parents relief,the boy made a quick_（recover）after the operation.从中恢复静下心来 recoveryfromherself remove vt.去除，移开，脱去，搬走去除，移开，脱去，搬走remove.from._remove from.to.从搬到 即学活用(1)You look so worried.

24、You must remove yourself_ pressure.(2)He _(被开除了）the post because he broke the rules and regulations 把从移开/撤掉/去除 was removed fromfromThe government,however,does not intend to stop the protection programmes,since the threats to the Tibetan antelope have not yet disappeared.然而，政府并没有打算停止这些保护项目，然而，政府并没有打算

25、停止这些保护项目，因为因为对藏羚羊的威胁依然存在对藏羚羊的威胁依然存在。打算，想要打算，想要the threat to.对对.的威胁的威胁intend vt./vi.打算；计划；想要vt.打算；计划；想要 intend to do/doing sth.打算做某事打算做某事 She intends to do A levels and go to university.她计划先参加高级考试，然后去读大学。intended adj.打算的，计划的 be intended for 专为专为.而设计而设计/准备的准备的 This money is intended for the developmen

26、t of the tourist industry.这笔钱为旅游业的开发而准备的。be intended to do sth 打算做某事打算做某事intention n.意图意图,目的目的;打算打算 have no intention of doing sth.无意做某事无意做某事;不打算做某事不打算做某事【语境应用语境应用】根据所给单词或汉语意思完成句子。根据所给单词或汉语意思完成句子。1)The university is known for its language and culture courses _(intend)for international students.2)I h

27、ave no _(intend)of retiring just yet.3)I _ as a volunteer in an environmental protection organization during the summer holidays.我打算暑假期间在一个环保组织做志愿者。我打算暑假期间在一个环保组织做志愿者。intendedintentionintend working/to work threat n.威胁威胁a/the threat to._ under threat from _the threat of violence 暴力威胁暴力威胁联系拓展联系拓展thre

28、aten vt.威胁；危及威胁；危及threaten sb.with.用威胁某人 threaten to do sth.威胁做某事即学活用(4)These ancient woodlands _(受到的威胁)new road developments.(5)The fighting is _（对的一个很大威胁）safety in the region.对的威胁受到的威胁 a major threat to are under threat from In the evening,I drink a cup of tea and watch the stars.I think about the

29、 antelopes and what Zhaxi told me.夜晚时分，我喝着茶，仰望星空。夜晚时分，我喝着茶，仰望星空。我想起了藏羚羊以及扎西对我说的那番话。我想起了藏羚羊以及扎西对我说的那番话。Much is being done to protect wildlife,but if we really want to save the planet,we must change our way of life.为了保护野生动物，我们已经做了很多工作，但是如果我们真想拯为了保护野生动物，我们已经做了很多工作，但是如果我们真想拯救地球，就必须改变我们的生活方式。救地球，就必须改变我们的

30、生活方式。2.Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet.状语从句状语从句主语主语谓语谓语 Only when he finished his homework did he watch TV.他只有完成作业后才看电视。他只有完成作业后才看电视。Only when the project was completed was he able to get back home.只有当工程完成时，他才能回家。只有当工程完成时，他才

31、能回家。only+only+状语位语句首，句子部分倒装状语位语句首，句子部分倒装只有学会和大自然和谐共处，我们才不会成为只有学会和大自然和谐共处，我们才不会成为野生生物和地球的威胁。野生生物和地球的威胁。Only in this way can we help the endangered animals.Only then did we know the animals were in danger.Only when we know the threat will we find out ways to help them.“Only+状语状语”位于句首，主句部分使用部分倒装。位于句首，主

32、句部分使用部分倒装。部分倒装结构使用部分倒装结构使用“助动词助动词/情态动词情态动词/be动词动词+主语主语+谓语谓语”。only+介词短语介词短语位于句首，主句进行部分倒装位于句首，主句进行部分倒装only+副词副词位于句首，主句进行部分倒装位于句首，主句进行部分倒装only+状语从句状语从句位于句首，主句进行部分倒装位于句首，主句进行部分倒装1.他回到家时才意识到发生了什么事。他回到家时才意识到发生了什么事。Only when he returned home did he realize what had happened.2.只有努力工作，我们才能取得进步。只有努力工作，我们才能取得进

33、步。Only by working hard can we make progress.1.Only yesterday _(他发现他发现)that his watch was missing.2.Only after talking to two students _(我意识到我意识到)that having strong motivation is one of the biggest factors in reaching goals.3.Only by practising a few hours every day _ (你能够掌握这门语言你能够掌握这门语言).4.只有当你亲自来看看

34、时，你才能明白这里的风景有多么美。只有当你亲自来看看时，你才能明白这里的风景有多么美。_did he find outdid I realizewill you be able to master the languageOnly when you come and look in person,can you understand how beautiful the scenery is here.exist vi.存在存在,生存生存,生活生活（无被动语态，无进行时）无被动语态，无进行时）exist on=live on 靠靠生活生活 They cant exist on the money

35、 hes earning.他们靠他挣的那点钱无法维持生活。There exist(s)有有.,存在存在.There exist two environmental problems.存在着两类环境问题。existence n.存在存在 come in to existence 产生，出现产生，出现 existing adj.目前的；现存的目前的；现存的 existent adj.现存现存的；存在的；生存的的；存在的；生存的 adj.不存在的不存在的2harmony n.和谐和谐;融洽融洽 harmonious hmnisadj.和谐的和谐的,协调的协调的,和和睦的睦的harmonious so

36、ciety 和谐社会和谐社会in harmony with 与与协调；与协调；与一致一致 We must ensure that tourism develops in harmony with the environment.我们必须确保旅游业与环境和谐发展out of harmony with sb./sth.与与不协调不协调P17 4Learn about elephants by reading and completing the passage with the correct forms of the words.hunter illegally reserveattack ex

37、ist plain harmony threatHerds of elephants used to live on the _ of Africa and in the forests of Asia.But today,they face a serious _ from _.These large animals are being killed _ for their body parts that are considered valuable.In order to save them,some countries have created _ where they can live in peace and safety.However,the _ on them will continue as long as interest in buying elephant products _.To achieve _ between humans and animals,the world must protect these beautiful creatures.plainsthreathuntersillegallyreservesattacksexists harmonyThank You