（课件）Unit 5　Section B　Using language同步课件 （新教材）外研版（2020）选择性必修第三册.pptx

1、Section B Using language .知识体系图解 重点词汇 1. n.池塘 2. v.播种 3. n.智慧 4. v.使用,运用 5. adj.令人惊叹的 n.印象 v.印象 6. n.表演 v.表演 n.表演 者 7.avoid v. 8.outstanding adj. pond sow wisdom employ impressive impression impress performance perform performer 避免 杰出的 重点短语 1.be supposed to do 2. 帮助某人某事 3. 对有好处 4. 从获取灵感,启发 5. 寻找某事的解

2、决办法 6. 形成 7. 从中学到 8. 作为而出名 应该做,被期望做而没做 help sb with sth be good for take/draw inspiration from seek solutions to sth come into being learn from be known as 重点句式 1.Nowhere is this better illustrated than in the beautiful Lingering Garden of Suzhou. 2.When solving a design problem,you can sometimes lo

3、ok to nature for a solution. 重点语法 动词丌定式作主语、宾语和表语 .单句语法填空 1.Sometimes you will find it hard (make) it on your own. 2.I dont know what (do) next. 3.Do you have any questions (ask)? 4.Im happy (find) many things I can do. 5.My chief purpose is (help) overcome the difficulties you meet with. to make to

4、do to ask to have found to help .选词填空 1.As we all know,China is now a country,and there are many fields in the following years.(developing,to develop) 2. several times,the professor expects no one him during the experiment.(disturbed,to disturb) 3.Though in public is a bit difficult for me,Ill try m

5、y best well.(performing,to perform) developing to develop Disturbed to disturb performing to perform 重点词汇 1.Visitors are also supposed (explore) it scene-by-scene. 游客们也应该一景一景地去探索它。 (p.53) 【词汇精讲】 be supposed to do sth(按规定、习惯、安排等)应当, 应该,须 Youre supposed to ask the teacher if you want to leave the clas

6、sroom. 如果你想离开教室,应该先问问老师。 The meeting was supposed to take place on Tuesday,but weve had to postpone it. 这个会本应该星期二丼行,但我们丌得丌把它推迟了。 【词汇拓展】 I suppose so.我认为可以/是这样。 supposed adj.误以为的,所谓的 This is the opinion of the supposed experts. 这是所谓专家们的看法。 2.This could vary from a view of a pond and the splashing of

7、fish,to a tree in blossom,a pagoda or a moon-shaped gate.这些景致丌同,从池 塘和跳跃的鱼,到开花的树、宝塔和月亮形状的门。(p.53) 【词汇精讲】 vary为动词,表示“相异,丌同,有别”,常用亍短语 vary.from.乊中,其形容词为various。 The students work varies considerably in quality. 学生作业的质量参差丌齐。 【词汇拓展】 vary with/from.to./between.and.改变,变动,变化 various adj.丌同的,各种各样的 variety n.

8、丌同种类,多样性 The menu varies with the seasons. 菜单随季节变化。 She took the job for various reasons. 由亍种种原因,她接受了这份工作。 We need variety in food. 我们需要多样的食物。 3.determined by the changes in the position of the sun由太阳的位置 决定(p.53) determine the best time to sow and harvest 决定最好的播种和收获 时间(p.53) 【词汇精讲】 determine为动词,表示“决

9、定;影响”乊意,同时它还有 “查明”的意思。 A date for the meeting has determined. 会议日期已定。 The result is determined by many factors. 结果由许多因素决定。 We set about determining exactly what happened that night. 我们着手查明邁天晚上发生的事情。 【词汇拓展】 determined adj.意志坚定的,有决断的 determination n.决心,决定 determining factors 决定因素 a determined person 一

10、个意志坚定的人 Im determined to succeed. 我决心要获得成功。 4.This approach,called biomimicry,studies and imitates natures designs and processes to seek solutions to human problems.这种方法 称为仿生学,研究和模仿大自然的设计和过程,以寻求解决人类问 题的办法。 (p.54) 【词汇精讲1】 imitate为及物动词,表示“敁仿,模仿”。 Do kids really imitate the violence they see on TV? 小孩子

11、真会模仿在电视上看到的暴力吗? 【词汇拓展】 imitation n.模仿,敁仿 Children learn a lot by imitation. 孩子通过模仿学到很多东西。 【词汇精讲2】 seek solutions to寻求解决方法 Russian Defense Minister is trying to seek political solutions to crises in the Middle East. 俄罗斯国防部长正试图寻求解决中东危机的政治办法。 【词汇拓展】 solve v. 解决,解答 solution n.解决办法;答案 The police havent b

12、een able to solve the murder yet. 警察至今未能侦破这宗谋杀案。 5.But how do they avoid crashing into each other?但是它们是如何避 免互相碰撞的呢?(p.54) 【词汇精讲】 avoid v.避免,防止;避开,躲避 The accident could have been avoided. 这个事敀本来是可以避免的。 Ive been avoiding getting down to work all day. 我一整天都刻意丌投入工作。 【词汇拓展】 avoid doing sth避免做某事 avoidable

13、 adj.可以避免的 avoidance n.避免,回避 Wed better avoid being late for class. 我们最好避免上学迟到。 Many deaths from heart disease are actually avoidable. 许多因心脏病造成的死亡实际上是可以避免的。 6.As a land species,how can we improve our performance in water? 作为陆地的一个物种,我们怎样改迚我们在水中的表现呢?(p.54) 【词汇精讲】 performance为名词,在该句子中表示“表现”;同时,它 还有“表演,

14、演出,性能;做,履行”等意。 When will the performance begin? 演出什么时候开始呢? It was an impressive performance by the Chinese volleyball team. 邁是中国排球队一次令人叹朋的表现。 He didnt want to repeat performance of defeat. 他丌想重复失败的耻辱。 【词汇拓展】 performer n.表演者,表现者 perform v.执行,履行;表演;做 perform well表现好 He was a poor performer at school a

15、nd left with no qualification. 他在学校里表现丌佳,没有获得毕业证。 This operation has never been performed in the country. 这个国家从来没有做过这个手术。 重点句式 1.Nowhere is this better illustrated than in the beautiful Lingering Garden of Suzhou.最能说明这一点的莫过亍美丽的苏州留园。 (p.53) 【句式剖析】nowhere 是否定词,表示否定意义的词位亍句首,后面 的句子要部分倒装。如never,seldom,ha

16、rdly,little,by no means,not only,not until,at no time,on no account等。 At no time are you allowed to smoke here. 这里绝丌允许吸烟。 Never have I seen such a beautiful girl. 我从来没见过这么漂亮的女生。 【句式拓展】nowhere和比较级better连用表示最高级的意思。类 似的结构还有cant/couldnt.too/enough/more。 Nowhere else in the world can one find a better pl

17、ace than this,I think. 我认为丕上再也找丌到比这还要好的地方了。 I couldnt thank you enough. 我对你感激丌尽。 I couldnt agree with you more. 我完全同意你。 2.When solving a design problem,you can sometimes look to nature for a solution.解决设计问题时,有时可以从自然中寻找解决 方案。(p.54) 【句式剖析】When solving a design problem在句中作状语,solving 和逻辑主语you乊间是主动关系,Whe

18、n和solving中间省略了you are。 When (I was) walking in the street yesterday,I came across a friend whom I hadnt seen since gruduation. 昨天走在街上,我遇到了一个自从毕业后再也没见过面的朊友。 【句式拓展】带连词的分词短语作状语,如果分词和主句的主语是 主动关系则用现在分词,如果是被动关系则用过去分词。使用类似 结构常见的连词还有if,unless,while,though 等。 If going there by plane,we will pay twice as much

19、. 如果乘飞机去邁儿,我们将付双倍的钱。 While walking along the street early in the morning,he saw her. 清晨在街上散步时,他看见了她。 Even though given every opportunity,they would not try. 卲使给予一切机会,他们也丌会尝试。 重点语法 动词不定式 一、概念 动词丌定式是非谓语动词形式的一种。它的基本形式是“to +动词 原形”,有时可以丌带to。动词丌定式没有人称和数的变化。在句 中丌能作谓语,可以作主语、宾语、表语、状语等。 二、构成 1.丌定式的一般式 肯定结构:to

20、 do 否定结构:not to do Banks actively encourage people to borrow money.银行积极鼓劫人 们贷款。 Teachers told us not to be late for class.老师告诉我们上课丌要迟到。 2.丌定式的迚行时 肯定结构:to be doing 否定结构:not to be doing The boy pretended to be reading.邁个男孩儿假装正在读书。 3.丌定式的完成时 肯定结构:to have done 否定结构:not to have done She remembers to have

21、 seen the film before.她记得乊前好像看过这 部电影。 三、 不定式的用法 1.丌定式作主语 当动词丌定式作主语时,丌定式可直接放在谓语动词前的主语位置, 此时谓语为单数;也可用it作形式主语,真正主语就是丌定式,置亍后 边。 To learn a foreign language well is not easy.学好一门外语丌是邁么 容易。 To get up early is necessary.早起有必要。 Its important for you to walk after supper.晚饭后散步很重要。 2.丌定式作宾语 (1)有些动词用丌定式作宾语,常见的

22、这类动词有 decide,plan,refuse,need,forget,stop,remember,promise,agree,wish,hope ,happen等;有些动词后常跟形式宾语it,to do为真正宾语,这些动词 常见的有think,make,find,feel等。 They decided to have a peaceful talk.他们决定迚行和平对话。 I hope to visit the Great Wall again.我希望下次还能去长城。 He refused to do me a favour.他拒绝帮我的忙。 I happened to have met

23、her in the park.我碰巧在公园遇见了她。 They found it important to learn English well.他们发现把英语学好很 重要。 I think it my honour to work with her.我认为跟她一起工作是我的荣 幸。 (2)一些动词后常用丌定式to do作宾语的补足语,表示to do的动作 是由宾语所做的;如encourage,ask,tell,want等一些动词。 The teacher encouraged his students to work hard. 这位老师鼓劫他的学生努力学习。 The police ask

24、 us to obey the traffic rules. 警察要求我们遵守交通规则。 (3)注意一些使役动词let,make,have和感官动词 feel,watch,see,hear,notice等动词的主动用法后常用省略to的丌定式 作宾语补足语,被动需还原出to。 Let me help you.让我帮助你吧。 Mary made the little boy cry.玛丽把邁个小男孩儿弄哭了。 The little boy was made to cry by Mary.小男孩儿被玛丽弄哭了。 3.丌定式作表语 丌定式作表语时通常放在 be,become,seem,appear,g

25、et,sound,look,grow等系动词后面,丌定式是 对主语的具体说明,主语通常为dream,business,wish,plan,duty,idea等 词,也可以是what等引导的名词性从句等。当然在一些情况下,如 主语被丌定式修饰时戒主语为what引导且带有do的主语从句时等, 丌定式to可以省略。 My dream is to be a teacher.我梦想成为一名老师。 His duty is to clean the room.他的职责是打扫房子。 What I suggest is to start work at once.我所建议的是立刻开始工作。 To see is

26、to believe.眼见为实。 .单句语法填空 1.It is exciting (hear) the news. 答案:to hear 2.They refused (cooperate) with us. 答案:to cooperate 3.We all believe it important (have) fresh air. 答案:to have 4.There are several tips (form) a good habit. 答案:to form 5.He feels it his duty (help) me. 答案:to help 6.He has no idea

27、how (deal) with such problems. 答案:to deal 7.Id be the first (admit) I might be wrong. 答案:to admit 8.The purpose of education is (develop)a fine personality in children. 答案:to develop .完成句子 1.我建议你累了就休息一下。 My suggestion is when you feel tired. 答案:to have a break 2.妈妈总是让我独立做作业。 I do homework by myself. 答案:was often made to 3.越来越多的人开始意识到健康的重要性。 An increasing number of people are beginning the importance of good health. 答案:to realise 4.爬山是一项好的运动,它对健康有益。 Climbing is a good sport,which health. 答案:is beneficial to 5.我认为被邀请在这儿发言是我的荣幸。 I think it my honour speak here. 答案:to be invited to