Unit4 Wildlife protection基础知识梳理复习ppt课件(英语必修2)
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Unit4 Wildlife protection基础知识梳理复习ppt课件(英语必修2)

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Unit 4 Wildlife protection1.wild adj.野生的;野的;未开发的;荒凉的 n.减少;减2.decrease vi.& vt.减少;(使)变小;或变少 小;减少量 3.hunt vt.& vi.打猎;猎取;搜寻 4.certain adj.确定的;某一;一定 5.contain vt.包含;容纳;容忍 6.affect vt.影响;感动;侵袭;作用7.appreciate vt.鉴赏;感激;意识到 8.succeed vi.成功 vt.接替;继任 9.income n.收入 10.employ vt.雇用;利用(时间、精力等) 11.harm n.& vt.损害;危害 12.bite vt.& vi.(bit, bitten)咬;叮;刺痛 13.incident n.事件;事变n.减少,减1.decrease vi.& vt.减少;(使)变小;或变少 小;减少量(反义词:increase) 例句 His interest in music gradually decreases. 他对音乐的兴趣逐渐减退。 They are making efforts to decrease the expense of their family. 他们正在努力减少家庭开支。 There has been a steady decrease in the birth rate in this city.这 个城市的出生率在持续下降。 搭配 decrease by...下降了(强调幅度) decrease to...下降到(强调结果)辨析 decrease/reduce decrease 强调数目减少;reduce 则表示尺寸、数量、程度 或强度减少,也可以表示地位、处境、状况降低或恶化。 运用 完成句子 (1)参加英语口语测试的人数减少了 10%。 The number of students who took part in the oral English test _________________. (2)最近几年,这个镇的人口减少到 10 万。 In recent years, the population in this town______________ ________. (3)我们要逐步缩小工资差距。 We must gradually______the wage gap. decreased by 10% has decreased to 100,000 reduce2.hunt vt.& vi.打猎;猎取;搜寻 例句 It is illegal to hunt rare animals. 捕猎珍稀动物是违法的。 We'll go hunting in the afternoon. 我们下午将出去打猎。 搭配 hunt for 搜索;试图找到 hunt after 探求;追求 hunt sth./sb.down 捕获某人/物 hunt sth./sb.out 找出某人/物运用 完成句子 (1)警察追捕到了一名罪犯。 The police ____________a criminal. (2)约翰那天外出找工作了。 John went out to _______work that day. (3)他从储藏室里找出一本旧日记。 He __________an old diary from the storage. hunted down hunt for hunted out3.contain vt.包含;容纳;容忍 例句 Most fruits contain water and sugar. 大多数的水果含有水和糖分。 The meeting hall can contain 200 people. 这个会议室能容纳 200 人。 辨析 contain/include (1)contain 意为“包含;容纳”,指某物被容纳在比它范围 更大的东西之内,侧重所含的量与成分。 (2)include 意为“包括”,侧重被包含者只是其中的一部分。运用 完成句子 (1)这本书包含了你所需要的全部信息。 This book ________________________you need. (2)这个瓶子可容纳多少粒药片? How many tablets can the bottle________? (3)这个价钱包括邮资在内。 The price_______ postage charge. contains all the information contain includes4.affect vt.影响;感动;侵袭;作用 例句 Her deeds affected the whole world. 她的事迹感动了全世界。 One's experiences will affect his outlook on life. 一个人的经历会影响他的人生观。 派生 搭配 effect n.结果;影响;效力 be affected by 受……影响/被……感动 have an effect upon/on 对……有影响/有效力 运用 完成句子 (1)这对孩子的将来影响很大。 It _________________the future of the child. (2)所有的观众都被这场电影感动了。 All the audience______________ the movie. had a great effect on were affected by5.appreciate vt.鉴赏;感激;意识到 例句 Her talent for music was not appreciated. 她的音乐才能无人赏识。 派生 搭配 appreciation n.欣赏;感激 appreciate doing sth.感激做某事 I would appreciate it if...如果……我将会很感激 运用 完成句子 (1)那是因为你不会欣赏音乐。 That's because you are not able to________________. (2)如果你能帮我做这件事,我将十分感激。 ____________________________you would help me with it. appreciate music I would appreciate it very much if用本单元所学单词及用法完成下列句子 1.他们的狗将门咬了一个洞。 Their dog ___a hole in the door. 2.十一月正是猎鹿的好时节。 November is a good time to ____ deer. 3.一些野生动物处于危险中,因此有必要保护它们。 Some ____animals are in danger, so it is necessary to protect them. 4.他每月的收入刚刚超过 2000 元。 His monthly _______was just over 2,000 yuan. bit hunt wild income5.他成功地得到了那份工作。 He__________ in getting the job. 6.这起事件正在被调查。 The ________is being investigated. 7.水中含有氧气。 Water ________ oxygen. 8.这个城市烟民的数量在持续下降。 There has been a steady ________ in the number of smokers in this city. 9.我很欣赏他对工作的极端专注。 I really _________ his complete absorption in his work. 10.情绪会影响工作。 Mood can______ work. succeeded incident contains decrease appreciate affect1.die out 灭亡;逐渐消失 2.burst into laughter 突然笑起来;大声笑了出来 3.protect...from/against 保护……不受……(危害) 4.pay attention to 注意 5.come into being 形成;产生1.die out 灭亡;逐渐消失 例句 Many old customs are gradually dying out. 许多旧习俗都在逐渐消失。 拓展 die of 死于(疾病、饥寒、情感、年老等) die from 死于(除疾病、饥寒、情感、年老等以外的其他原 因) die down 暗淡;平静下来;减弱 die off 一个个死去;相继灭亡 be dying for/to do sth.渴望(做)某事运用 用 die 相关短语的适当形式填空 (1)The baby ________fever. (2)He _________ a chest wound. (3)The sound of the car __________ in the distance. (4)This kind of animal has _________ in the world. (5)The deer in the forest are all________ for lack of water. (6)I'm_________ something to eat. died of died from died down died out dying off dying for2.burst into laughter 突然笑起来;大声笑了出来 例句 All the classmates burst into laughter when they heard the joke.听到那个笑话时,全班同学都捧腹大笑。 拓展 burst into tears/flames 突然哭起来/着火 burst out laughing/crying 突然大笑/哭起来 burst into some place 闯入某地运用 完成句子 (1)我的英语老师的幽默足可以让每个学生捧腹大笑。 My English teacher is so humourous as to make every student ______________________________. (2)我们又继续了 10 分钟,直到女儿突然哭起来,并承认她 被打败了。 We continued for another ten minutes, until suddenly my daughter__________________________, and admitted that she was beaten. burst into laughter/burst out laughing burst into tears/burst out crying3.protect...from/against 保护……不受……(危害) 例句 Every parent should protect their children from being hurt.每个父母都应保护自己的小孩不受伤害。 运用 完成句子 大树长出很多树叶,所以它们提供树荫保护我们免受阳光 照射。 Trees produce many leaves, so they provide shade to _________ ___________. protect us from the sun4.pay attention to 注意 例句 You must pay attention to what your teacher says in the class.上课的时候你必须专心听老师讲课。 拓展 to 为介词的常用搭配有: look forward to 期待 be related to 与……有关 be addicted to 沉溺于 get down to 着手做 make a contribution to 对……作出贡献 refer to 参考;查阅;涉及运用 完成句子 (1)当比较不同文化的时候,我们经常只是注意不同点,而 没有注意许多相似的地方。 When comparing different cultures, we often only ___ __________the differences without noticing the similarities. (2)我熟悉他的作品,并期待他能就文艺创作问题发表自己 的见解。 I am familiar with his works and ________________hearing his view on literary and artistic creation. (3)当你不知道怎么拼写一个单词时,查阅一下词典。 ________the dictionary when you don't know how to spell a word. pay attention to looking forward to Refer to5.come into being 形成;产生 例句 I am still confused on how the black holes come into being.我还是弄不清黑洞是怎么形成的。 拓展 come into effect 实施;生效 come into use 投入使用 come into power 上台执政 运用 用 come 相关短语的适当形式填空 (1)When did the world_____________? (2)The new seat belt regulations ______________last week. (3)When did this machine____________? come into being came into effect come into use用本单元所学短语及用法完成下列句子 1.罗马帝国是什么时候形成的? When did the Roman Empire_______________? 2.我会给你所有的事实以便你可以自己判断。 I will give you all the facts ______you can judge for yourself. 3.请按照说明将表填好。 Please fill up the form ____________the instructions. 4.所有的村民都和睦相处。 All the villagers live together_________. come into being so that according to in peace5.随身带一顶帽子,你需要保护你的头发不被太阳晒伤。 Take a cap with you.You need to _______your hair____________ the burning sun. 6.许多动物物种正处在濒临灭绝的危险中。 Many species of animals_______________________. 7.希望你对此问题给予关注。 I hope you will ______________this problem. 8.我们正在严肃认真地谈论问题,他们却突然大笑起来。 They _________________________________ when we were talking seriously about the matter. protect from/against are in danger of dying out pay attention to burst into laughter/burst out laughing原句 1 They lived on the earth tens of millions of years ago, long before humans came into being and their future seemed secure at that time.早在人类产生之前,它们就在地球上生活了几千万 年,而且在当时它们的未来似乎是安全可靠的。 精讲 long before 在 本 句 中 引 导 时 间 状 语 从 句 。 意 为 “在……的很久以前;在还没有……的很久以前”。此外,long before 还可以单独作状语,意为“老早;早就”。精练 根据中文提示,完成下列句子 (1)在他还没有结婚以前他就在这家工厂工作很久了。 He had worked in this factory ___________he got married. (2)我们早就看过那部电影了。 We've seen that film____________. 原句 2 We're being killed for the wool beneath our stomachs. 我们因为肚皮下的羊毛而被捕杀。 精讲 “am/is/are+being+过去分词”是现在进行时的被 动语态;而“was/were+being+过去分词”是过去进行时的被 动语态。 long before long before精练 根据中文提示,完成下列句子 (1)那座桥正在修建。 The bridge____________. (2)那时汤姆在为我修自行车。 My bike ________________by Tom at that time. is being built was being repaired运用所学语言基础知识,补充完整下面短文,并背诵之 We should (1)________________ ( 关 注 ) the problem of the protection of wildlife, because at present they are (2) _________( 濒 临灭绝) or (3)_________ ( 处于危险之中) .On one hand, people (4) ____( 捕杀 ) animals for food or for the thick furs.On the other hand, people can not (5)___________________( 与 …… 相 处 好 ) wildlife which they think are fierce and may attack them to death, which will endanger the wildlife. In order to (6)_______ the wildlife (7)_______________ ( 保 护 …… 不 至 于 灭 绝 ), it is necessary to set up wildlife reserves.(8)____________ ( 只要) the above measures are effective, the species will develop gradually and safely. pay attention to dying out in danger hunt get along/on well with protect from extinction As/So long as 听说考试“模仿朗读”备考指导(五) 5.语调 英语中的基本语调有:升调(↗),降调(↘),升降调(∧), 降升调(∨)和平调(→)。其用法为: (1)升调:主要用于一般疑问句,带有疑问语气;也可用于 祈使句,表示委婉、客气;或用于陈述句,表示疑问、不肯定 或不耐烦等。如:Can you come to us for lunch?↗ 你能来和我们一起吃午饭吗? You know her?↗你认识她? So long!↗太长了! (2)降调:主要用于陈述句、特殊疑问句、祈使句(表命令) 和感叹句。如: The birds are singing in the trees.↘鸟儿正在树上歌唱。 When shall I give you the book?↘ 我什么时候要把书给你? Leave the book on the desk.↘把书放在桌子上。 What a beautiful picture!↘多美的画啊!(3)前升后降调:主要用于: ①选择疑问句。如: Which do you prefer, tea↗ or coffee? ↘ 你更喜欢喝哪一种,茶还是咖啡? ②以状语或状语从句开头的句子。如: In my opinion,↗he is perfectly right.↘ 依我看,他完全正确。 ③计数或列举。如: One,↗two, ↗three↗ and four.↘一,二,三,四。 I want a pen,↗ a ruler ↗and some paper.↘ 我需要一枝笔、一把尺子和几张纸。注意:and 连接的几个并列的词或短语, and 前面的都读 升调,其后的读降调。 (4)前降后升调:主要用于带有疑问语气的反意疑问句。如: You haven't finished it,↘have you?↗ 你还没完成,是吗? 如果反意疑问句中的疑问成分很少,则全部用降调。如: It's a nice day, ↘isn't it?↘天气真好,不是吗? (5)平调:指说话声调维持在同一个高度,而无升降。如何丰富句子的表达 大多数考生写英语作文时,往往不注意语句表达形式的多 样化,句子千篇一律,缺乏生气。这里列举一些简单可行的方 法,以帮助考生丰富句子表达,提高英文写作水平。 1.改变句子长度 初学写作的人容易堆砌简单的短句,读起来单调乏味。如 果改变句子长度,做到短句、中长句、长句兼而有之,情况就 大不一样了。如:①There is one positive result of the rising crime.②This has been the growth of neighbourhood crime prevention programs.③These programs really work.④They teach citizens to patrol their neighbourhoods.⑤They teach citizens to work with the police.⑥They have dramatically reduced crime in cities and towns across the country.⑦The idea is catching on. 文段中 7 个句子都是短句,十分单调。现在我们对句子长 度做些调整: ①One positive result of the rising crime rate has been the growth of neighbourhood crime prevention programs.②Theseprograms really work.③By teaching citizens to patrol their neighbourhoods and work with the police, they have dramatically reduced crime in cities and towns across the country.④The idea is catching on. 修改后的这段文字,有短句②和④,有中长句①,也有长 句③,不仅避免了句子单调化,还使长句更说明问题,短句也 更显力度。 2.将若干简单句合并为一个简单句 为避免堆砌简单短句,可把原若干简单句合并成只带一个 共同主语的简单句。(1)使用并列谓语 He put on his coat.He picked his hat and umbrella.Then he hurried from the house.变为: He put on his coat, picked his hat and umbrella, and hurried from the house. 他穿上外套,拿起帽子和雨伞就急匆匆地从家出去了。 (2)使用分语短语 Judith is alarmed by the increase in meat price.She has become a vegetarian.变为: Alarmed by the increase in meat price, Judith has become a vegetarian.因担心肉价上涨,朱迪思已开始吃素食。(3)使用同位语 She was the mayor of the town.She was an amiable person.She invited the four students into her office.变为: The mayor of the town, an amiable person, invited the four students to her office. 镇长是一位和蔼的人,她邀请了四名学生到她的办公室。 (4)使用短语 英语中的短语十分丰富,选择面极宽。选用适当的短语把 几个简单句合并起来,是增加句子灵活性的一条捷径。如: The streets are icy.We could not drive the car.变为: Because of the icy streets, we could not drive the car. 由于路面结冰,我们不能开车。(5)善于使用连接词 有的考生写复杂句时,动辄用 so, and, but, or, then, however, yet 等,非但达不到丰富表达方式的目的,反而会使句子结构松 散、刻板。如: The Mississippi River is one of the longest rivers in the world, and in spring often overflows its banks, and the lives of many people are endangered. and 把 3 个分句一贯到底,既乏味又可笑。因此,应慎用上 述并列连词、副词等。如果可能,不妨多用一些表示从属关系的连接词,如 who, which, that; because, since; after, as, before, when, whenever; if, unless; as if 等。如上例可改为: The Mississippi River, which is one of the longest rivers in the world, often overflows its banks in spring, endangering the lives of many people. 密西西比河是世界上最长的河流之一,在春季时河水经常 会泛滥,严重危及两岸人民的生活。3.打破传统的主谓结构 主谓结构的句子写多了,偶尔用几个词或短语恰到好处地 插入主谓之间,或将主谓倒置,可以为句子表达增添几分新意。 如: Her ability to listen is an acquired skill that attracts many friends.变为: Her ability to listen, an acquired skill, attracts many friends.她 所具备的善于聆听的特质吸引了很多朋友。

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