人教版选修七第三单元基础知识
选修7Unit3语法讲解课件
倒装句的定义
倒装句
英语中，有时为了强调、突出某个部分，或者使句子结构平 衡，将谓语动词、助动词、情态动词等置于主语之前，这种 语序称为倒装。
倒装句分为两种
全部倒装（Full Inversion）和部分倒装（Partial Inversion ）。
倒装句的分类
全部倒装
整个谓语置于主语之前。
部分倒装
虚拟语气的用法
在条件状语从句中，使用虚拟语气来表示与事实相反的情况…
“If I were you, I would take the job.”（如果我是你，我会接受这份工作。）
在目的状语从句中，使用虚拟语气来表示为了达到某种目的…
“I spoke loudly so that he might hear me.”（我大声说话以便他能听到我。）
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它通常用于与事实相反的情况， 或者表达主观愿望、强烈的情感 或态度。
虚拟语气的分类
条件虚拟语气
情感虚拟语气
表示假设条件下的虚拟情况，通常与 “if”引导的条件句一起使用。
表示对某事物的强烈情感或态度，通 常与“wish”、“as if/though”等 词或短语一起使用。
目的虚拟语气
表示为了达到某种目的而进行的虚拟 行为，通常与“so that”或“in order that”引导的目的状语从句一用法
不定式可以作为主语、宾 语、定语、状语等成分使 用，表示未来的动作或行 为。
现在分词的用法
现在分词可以作为主语、 宾语、定语、状语等成分 使用，表示正在进行的动 作或行为。
过去分词的用法
过去分词可以作为定语、 状语等成分使用，表示已 经完成的动作或行为。
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语法点四：倒装句
人教版新课标选修7第三单元精讲讲义(附练习答案)
选修7第3单元Ⅰ. 要点导读1. It was a time when the killer whales … helped the whalers catch the baleen whales that were on their annual migration. (P19) annual adj.“每年的；一年一度的”eg: Please hand in your annual report of sales, and the chairman will check it.annually adv.“每年地；年度地”eg: They plan to hold the exhibition of cars annually.2. I thought, at the time, that this was just a story but then I witnessed it with my own eyes many times. (P20)witness(1) v.“亲眼看到；目睹”eg: The old lady witnessed the accident at 3 o’clock on Saturday afternoon.“见证”eg: This century has witnessed the steady growth of urban centers.(2) n.“目击者”；bear witness to“为……作证”eg: The man’s fingerprints bore witness to his guilt.3. And those others are stopping it fleeing out to sea … (P20)flee“逃跑；逃避”vi.常和from或to搭配，“从……逃走；逃到……”eg: The enemy were defeated, fleeing in disorder.The robbers tried to flee from the house, but failed.vt. 后面直接跟逃跑的地点，没有被动语态。
新版人教版选修7 第3单元 单词讲解(共34张PPT)演示课件
做个X射线检查，然后他就可以做出诊断。urge sb. to do sth.“催促/力劝某人做某事”。
【答案】 A
abandon vt.遗弃；抛弃(某人)；中止 n．放任；放纵
We will never abandon our principles.我们应该坚持原则。 (1)abandon oneself to(doing)纵情于，沉溺于…… She abandoned herself to despair.她陷入绝望之中 . Please abandon youself to studying.请让你自己沉溺于学习。 (2)abandon doing sth.放弃做某事 (3)with abandon放纵地，放任地 People were shouting and cheering with abandon. 人们纵情欢呼。 (4) abandoned adj. 放荡的，放纵的，无拘束的
They scared the little boy into stealing foods in the supermarket.
他们威胁这个小男孩到超市里去偷食品。
scare sb.to death把某人吓得要死be scared to death
(2)scared adj. 害怕的；担心的；恐惧的
6．flee vi.& vt.逃走；逃离；逃避 归纳拓展 注意：flee 作“逃跑”讲时，可以是及物动词，也可以是不 及物动词。用作及物动词时，它的过去式和过去分词都是 fled。 flee from 从……逃离，逃避 flee to 逃至 When they saw the police car，his attackers turned and fled. 那些袭击他的人看到警车后转身就逃。
人教版高中英语选修七Unit3Underthesea知识讲解话题语言应用——海底世界
话题语言应用——海底世界编稿：牛新阁审稿：王春霞语言积累交际用语表示责备与抱怨：I’m sorry but ... 对不起，但是......I’m afraid .... 恐怕.......That’s not good enough. 那不够好。
I’m feeling annoyed with / unhappy about / unsatisfied with...我对......烦恼/不高兴/不满意。
（注意此句型中形容词与介词的搭配，再如：be/ feel terrified of ... 对......非常害怕）I’d like to talk to the manager. 我想和经理谈谈。
I’d like a (full) refund, please. 我希望（你们）能（全额）退款。
That’s no good for me. 那对我没有好处。
You should do something about it. 这件事你（们）应该处理/采取点措施。
话题语句（1）常见海洋动物（sea animals / sea creatures）【高清课堂：Under the sea语言应用---A tour to the sea!】crab 螃蟹 dolphin 海豚shark鲨鱼e el 鳗；鳝starfish海星jellyfish 水母，海蜇 lobster 龙虾 octopus 章鱼oyster 牡蛎coral 珊瑚（虫）seal 海豹sea lion 海狮walrus 海象 squid 鱿鱼seahorse 海马whale 鲸otter 水獭shrimp 虾mussel 蚌sea cucumber 海参turtle海龟sea anemone海葵“I pledge to stop eating shark fin soup and will not do so under all circumstances.” Yao Ming said at a media conference hosted by Wild Aid in London.注意：pledge 保证，许诺shark fin soup鱼翅汤host 主持wild 野生的under all circumstances 无论在任何情况下A quiz about sea animals1. Lobsters, clams (蚌), and oysters have ________. (A)A. hard shellsB. holdfasts（吸盘）C. tentacles（触须）2. The largest animal in the sea is ________. (C)A. the white sharkB. the giant kelpC. the blue whale3. An octopus moves by ________. (C)A. walking on its tentaclesB. sliding on its backC. shooting out a stream of water4. The sea anemone(海葵) is ________. (B)A. a plant that looks like an animalB. an animal that looks like a plantC. the largest flower in the sea5. A seahorse swims by ________. (A)A. moving the fin (鳍) on its backB. moving its tailC. squirting (喷射) water out of its mouth6. Which one is a mammal that lives in the sea? (C)A. a starfishB. an octopusC. a whaleHow much do you know about sea animals? T or F1. Different types of fish live in different parts of the ocean. (T)Some live close to coral reefs. Some live near the surface. Some even live in the deep water close to the bottom of the ocean.2. Sharks are one of the better known predators (食肉动物) in the sea but they don’t have teeth.(F)Many sharks have sharp teeth that are used to catch their food.3. Fish usually travel in schools because they like to be together. (F)The movement of all the fishes may confuse a predator. Plus, there are more eyes to look out for danger.4. Coral reefs are created by dead creatures called polyps (珊瑚虫). (F)Polyps are tiny creatures that form a hard skeleton to protect their bodies.5. Seals spend all of their time in water. (F)They must return to the surface to breathe, just like other mammals.6. A seal can go for 40 minutes without a breath. This allows them to dive to a depth of over 2,000 feet. (T)7. Mother penguins keep the egg on her feet for 60 days without eating anything. (F)Father does the job.8. Jellyfish are creatures that have no bones and they are hidden on the seabed. (F)They are creatures that just float in the ocean.Sea transportation? （海上运输）canoe 独木舟 sailboats 帆船ferry渡轮submarine 潜水艇banana boats kayak 皮划艇jet ski 水上摩托fishing boats 渔船tanker 油船ocean liner 远洋定期客轮■话题语句（2）1. 有关海洋的词汇sea 海ocean 大洋bay 海湾,湾gulf 海湾、鸿沟cape 海角headland 海角,岬cliff 悬崖峭壁strait 海峡reef 礁石sandbar 沙洲tide 潮wave 浪iceberg 冰山delta 三角洲mouth 河口seaquake 海震,海啸low water 最低水位territorial waters 领海,领水current, watercourse 水流rapids 急流port, harbour 港(美语harbor)the Antarctic 南极洲offshore 近海的; 海面上的注：shore，seaside，beach，coast，bank的不同1)shore 指海岸，湖岸，也指近海的一带。
高二选修七第三单元知识点
高二选修七第三单元知识点高二选修七第三单元主要涉及以下几个知识点：地球的内部结构、地震与地壳运动、板块构造理论、地球表面的运动、大地构造和地理环境。
一、地球的内部结构
地球的内部可分为：地壳、地幔、外核和内核。
地壳是地球最外层的硬壳，地幔位于地壳之下，外核和内核则位于地幔之下。
地球内部的结构对地球上的地震、火山活动等地质现象有着重要的影响。
二、地震与地壳运动
地震是地球内部能量的释放，产生地震的原因有地壳的变形与断裂、岩层变形和构造运动等。
在地震中，地震波的传播对研究地球内部结构和地震发生机制非常重要。
三、板块构造理论
板块构造理论是指地球上被划分为多个大块状的地壳板块，它们在地球表面上相对运动，并引起地震、火山等活动。
板块构造理论解释了地球上的地壳运动和地球上地貌的形成。
四、地球表面的运动
地球表面的运动主要包括地壳的隆起和沉降、地震、火山喷发等。
这些运动是地球内部构造和地质活动的表现，对地理环境和
人类社会产生重要影响。
五、大地构造和地理环境
大地构造是指地球上的各种地理现象和地理环境的形成和变化
规律。
它包括地形地貌、气候、水环境、生态系统等方面。
地理
环境对人类的生存和发展有着重要的影响。
综上所述，高二选修七第三单元的知识点涉及地球的内部结构、地震与地壳运动、板块构造理论、地球表面的运动以及大地构造
和地理环境等方面。
了解和掌握这些知识点，可以帮助我们更好
地理解地球的形成和演化过程，以及与之相关的地理现象和环境
问题。
（完整版）人教版高中英语选修7Unit3知识点详解
（完整版）人教版高中英语选修7Unit3知识点详解Part 1. Warming upPart 2. Pre-reading, reading and comprehending1.I thought，at the time，that this was just a story but thenI witnessed it with my own eyes many time.我当时认为这只是个故事，但是后来我却多次亲眼目睹了这样的事情。
witness vt.目睹；目击；为……作证句型witness to (doing/having done) sth.证明某事；证实做了某事Police are appealing to any driver who may have witnessed the accident.警方正呼吁曾目睹这事故的司机出面作证。
The 1980s witnessed increasing unemployment throughout Europe.20世纪80年代是全欧洲失业日益加剧的年代。
Her principal was called to witness to her good character.她的校长被传唤来证明她优良的品质。
The driver witnessed to having seen the man enter the building.司机作证说，他看到此人进入那栋建筑物。
n.证据；目击者He has been a witness to a terrible murder.他目击了一起残忍的凶杀事件。
His good health is a witness to the success of the treatment.他身体健康证明这种疗法是成功的。
2.One afternoon I arrived at the station, as I was sorting out my accommodation, I heard a loud noise coming from the bay.归纳总结accommodation n.住处；停留处；和解，调解；(pl.)住宿，膳宿(1)make accommodations for...为……提供膳宿book accommodation at a hotel向旅馆预订房间arrange sb.’s accommodation给某人安排住处（2）accommodate vt.向……提供住宿（或膳宿）；容纳；为……提供空间；考虑到；顾及；帮忙；给……提供方便；顺应，适应（新情况）accommodate...to=adapt...to使……适应accommodate oneself to=adapt (oneself) to适应；顺应accommodate sb.with sth.=supply sb.with sth.给某人提供……即学即用（1）客座艺术家们只好自掏腰包支付食宿费用。
高三英语一轮复习综合备课人教版选修七unit 3 知识清单
③His good health isa_witness_tothe success of the treatment.
他的健康身体证明这种疗法是成功的。
④The late twentieth centurywitnessed_the_rapid_developmentof China's economy.
(2)with abandon放纵地；放任地
(3)be abandoned to沉湎于……
巧学助记:The child was abandoned by his parents.Eventually the abandoned boy was found wandering in the street, abandoning himself to despair.那个孩子被他的父母遗弃了，后来有人发现那个被抛弃的孩子在大街上游荡，他已陷入了绝望。
(2)witness for为……作证witness to sth./doing sth.证实/证明(做)某事
【温馨提示】英语中常使用拟人修辞手法的句子，主语通常是表示时间、地点或心爱之物，如车、船等的名词，谓语动词常为witness, see, find等。
1Our citywitnesses(witness) four different seasons，plenty of sunshine and good rainfall, but in winter you may feel a little cold.
4.学生通过当堂识记本节课重点单词和短语用法，能够背诵典型例句。
人教版选修七Unit 3笔记
1．witness vt.当场见到；目击 n ．目击者；证人；证据 ①witness to...(to 为介词)证实，证明…… witness for 为……作证 be witnessed by 由……证明②be a witness to 是……的证据/证人bear/give witness to 做……的证人，为……作证 in witness of 作为……的证据2．accommodation n ．住所；住宿；和解①make/offer accommodations for 为……提供食宿 arrange sb.'s accommodation 给某人安排住处②accommodate v t .向……提供住处(或食宿)；容纳，招待住宿；供应，供给；使适应，使适合，调节适应……accommodate sb.with 向……提供accommodate ＋⎩⎪⎨⎪⎧to...适应……...to...(＝adapt...to...)使……适应……oneself to (＝adapt oneself to )使某人适应3．opposite prep.在……对面 adj.相对的；相反的be opposite from 与……相反；不相容 be opposite to 在……对面；与……相反 oppose v t .反对opposed adj .反对的，不同的 be opposed to 反对…… opposing adj .对抗的opposition n ．反对；反抗Idealism is opposite from materialism.唯心论和唯物论是对立的。
4．yell vi 大叫；呼喊 n ．叫声；喊声 ①yell at 冲……大喊yell one's head off 大声叫喊 yell out 大声喊叫 yell for help 大声呼救②let out(give)a yell 大喊一声 5．pause vi.& n ．暂停，停顿 ①pause to do sth.停下来去做某事 pause for 停下来为……②give sb.pause(for thought)让某人停下来(仔细思考)/without pause 不停 6．flee vi.逃避；逃跑vt.逃离 flee(from) 从……逃跑 flee to/into 逃到……flee in all directions/every direction 四处逃窜 flee the responsibility 逃避责任 lee/escapeflee作“逃跑”讲时可作及物和不及物动词，指因害怕会有危险而逃离某地，重点在动作本身。
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2.so＋be动词/助动词/情态动词等＋主语“„„也„„”( 表示肯定意思)， neither/nor＋be动词/助动词/情态动词等＋主语“„„也 不„„”(表示否定意思) If you don't go to see the movie，neither will I．如果你不 去看电影，我也不去。
4.“only＋状语”放在句首的倒装句型 Only in this way will we be ready for the challenges and opportunities in life. 只有这样，我们对生活中的机遇和挑战才会有充分的准备。
梳理基础测评
Ⅰ.词汇与派生 A．联想记忆法 1．witness vt.当场见到；目击；n.目击者；证人；证据 →be a witness to...是„„的目标者/证人 2．opposite prep.在„„对面；adj.相对的；相反的 →oppose vt.反对 3．pause vi.& n．暂停；中止 4．flee (fled，fled) vi.逃避；逃跑；vt.逃离→flee from.../to(into)．..逃离„„/逃到„„ 5．drag vt.拖；拉；扯→drag sb.into doing sth.硬拉某 人参加某项活动
B．构词记忆法 1．annual adj.每年的；按年度计算的；n.年刊；年鉴 →annually adv. 2．accommodation n．住所；住宿→accommodate vt. 提供住宿 3．shore n．岸；海滨→offshore adv.& adj.近海(的)； 离岸(的) 4．depth n．深(度)；深处→deep adj.深的→deeply adv. 深深地 5．conservation n．保存；保护→conserve vt.保护；保 存；保藏 6．jog vi.慢跑；vt.轻推；轻撞→jogging n．慢跑锻炼
Ⅱ.根据句意用框中所给词的适当形式填空根据句意用 框中所给词的适当形式填空 urge，abandon，reflect，opposite，flee 6．We live further down on the opposite side of the road. 7．Many scientists fled to/into America at the beginning of World War Ⅱ. 8．She urged him to stay. 9．He abandoned himself to despair. 10．This novel reflects the life of the Chinese workers after liberation.
5．Many Palestinians were forced to ________ where they lived when the air attack began. A．leave from B．hide from C．run from D．flee from 解析：flee from 意为“从„„逃走”。句意：空袭一开 始，很多巴勒斯坦人就被迫离开了自己的家园。 答案：D
3.so it is with somebody＝so it's the same with somebody 前 者怎么样，后者也怎么样 John likes English but he doesn't like maths，so it is with me (so it is the same with me)． 约翰喜欢英语，但不喜欢数学。我也是。
根据语境选择框中所给短语的适当形式填空 be scared to death，be scared of，help...out，become aware of，upside down 1．As he is my best friend，when I am in trouble he will certainly help help me out. 2．Everybody becomes_aware_of the importance of the skill. 3．The canoe floated upside_down on the lake. 4．When I first saw a real snake，I was_scared_to_death. 5．All the children，except him，were_scared_of the fierce barking dog.
3．There were other creatures that I didn't want to get too close to－an eel with its strong sharp teeth，with only its head showing from a hole...(with＋宾语＋v.-ing构成with复 合结构，在句中作状语) 还有一些其他的动物，我不想太靠近它们——一条带有 利齿的海鳗，从洞穴里探出头来„„ [句式仿写] 有那个男孩领路，他们很容易就找到了那 栋房子。 With the boy leading the way，they had no difficulty in finding the house.
Ⅲ.句式与运用 1．Seeing such extraordinary beauty，I think every cell in my body woke up.(seeing...为现在分词短语作原因状语) 看到这样奇特的美景，我全身的每个细胞都苏醒了。 [句式仿写] 看着我同学的笑脸，我从他们的目光中读出了同 样的兴奋之情。 Looking_at_my_classmates'_face，I read the same excite-ment in their eyes. 2．As we drew closer，I could see a whale being attacked by a pack of about six other killers.(being attacked by a pack of about six other killers在句中作宾语补足语) 靠近一看，原来是一头大鲸受到大约六条虎鲸的攻击。 [句式仿写] 我看见杰克正在被警察带走，这使我非常吃惊。 I saw_Jack_being_taken_away by the police，which surprised me very much.
6．The Israel's sudden attack made them more ________the danger around them. A．aware B．aware about C．aware of D．aware to 解析：aware用作形容词时，与之搭配的介词为of，其 后也可以接从句。aware后接that从句时，一般不接介词of； 若接what等从句，介词of可带也可不带。本题空格后是名词 the danger，因此应用aware of。句意：以色列的突然攻击 使他们更加注意周围的危险。 答案：C
7．It is my father who ________when I lost my job. A．helped out me B．helped me out C．took me out D．took out me 解析：help out意为“帮助某人摆脱困境”。句意：是 我父亲在我失业时帮我摆脱了困境。 答案：B
1．It was a_time_when the killer whales，or “killers” as they were then called，helped the whalers catch the baleen whales that were on their annual migration. 那个时期，虎鲸(当时被称为“杀手”)帮助捕鲸人在每 年须鲸迁徙时捕捉须鲸。 句中a time表示“一段时间”，相当于a period of time， 后接when引导的定语从句。 ①I still remember a time when I lived in Germany. 我仍记得在德国住过的那一段时间。 ②It happened in the Stone Age when the weather was still warm.它发生在气候仍然温暖的石器时代。
选修七 Unit 3 Under the sea
赏析晨读积累
1.not only...but also...引导倒装句(前一分句倒装，后一分 句不倒装) They suggested not only should we attend the party but also give a performance. 他们建议我们不仅要参加晚会，还要进行表演。
7．reflect vi.思考；vt.映射；反射；思考→reflection n．反射；反映 8．neat adj.好的；整齐的；匀称的→neatly adv.整齐地 9．pension n．养老金；退休金→pensioner n．领取养 老金者 10．awesome adj.使人敬畏的；令人畏惧的
6．urge vt.催促；极力主张；驱策→urge sb.on激励，鞭 策某人 7．abandon vt.放弃；遗弃；抛弃→abandon oneself to... 沉迷于„„ 8．target n．目标；靶；受批评的对象 9．aware adj.意识到的；知道的 10．scare vt.恐吓；vi.受惊吓→scare sb.into doing sth.威 胁/恐吓某人做某事
透析考点导练
活学速检
Ⅰ.单词拼写 1．The exit can be used in time of ______(紧急的事)． 答案：urgency 2．After the explosion，the policemen did a lot of work to find out some clues from the ________(目击者)． 答案：witnessቤተ መጻሕፍቲ ባይዱs 3．The baby had been ________(丢弃)by its parents. 答案：abandoned 4．The moon ________(反射) the sun's rays. 答案：reflects