新教材人教20版必修二Unit 3 Discovering Useful Structures(英语)优质课件
【要义详析】 Ⅰ. 现在完成时的被动语态的2个用法 1. 表示动作已经完成, 强调对现在造成的影响或结果, 经常与一些副词连用如already, ever, never, recently, lately, just, yet等, 通常把这些副词放在助动词have或 has的后面, 有时候也可以放在句末。
3. The shop has repaired my computer very quickly. _M_y__c_o_m__p_u_te_r__h_a_s_b_e_e_n__re_p_a_i_r_e_d_b_y__t_h_e_s_h_o_p__v_er_y_ _q_u_ic_k_l_y_. 4. An unknown virus has just attacked my computer. _M_y__c_o_m__p_u_te_r__h_a_s_j_u_s_t _b_e_e_n_a_t_t_a_ck__ed__b_y__a_n_u_n__k_n_o_w_n_ _v_ir_u_s_.
2. People’s lives have been changed by online communities and social networks. 3. Jan’s life has been greatly improved by the Internet. 结论: 观察以上句子可以得出, 这一语法是现在完成时 的被动语态, 其一般构成是_h_a_v_e_/h_a_s__b_e_en__d_o_n_e_。
5. The computer has replaced the machine. _T_h_e__m_a_c_h_i_n_e_h_a_s__b_e_e_n_r_e_p_l_a_ce_d__b_y__th_e__c_o_m_p_u_t_e_r_. _
*The house was built last year. 这个房子是去年建造的。 *The house has been built. We can move in. 这个房子已经建好了。我们可以搬进去。
Ⅲ. 几点注意事项 1. 由finish, buy, start, begin, post, return, borrow, marry, open等词构成的现在完成时的被动语态, 不能 与表示一段时间的状语如for four days, how long等连 用, 而要改换动词或者是时态。试比较:
【名师点津】 现在完成时的被动语态有两个助动词, 就是
have/has和been, 这两个都是助动词, 缺一不可。 Ⅱ. 现在完成时的被动语态与一般过去时的被动语态的 区别
一般过去时的被动语态表示的是一个被动的动作发生 在过去某个时候, 它的结果对现在没有影响; 而现在完 成时的被动语态, 动作或状态尽管发生在过去, 但强调 这个动作或状态对现在造成的影响和结果。
*How long has this book been bought? (X) *How long ago was this book bought? (√)
2. 短语动词不能分割, 而且不能省略短语动词中的介词 或副词。试比较: *The patient has been taken good care. (X) *The patient has been taken good care of. (√)
﹡Tom’s novel has not been published yet. 汤姆的小说还没有出版。
2. 表示一直持续到现在的动作或状态, 经常与for a time, since, how loas been taken care of by grandma all these years. 这些年来, 孩子一直由奶奶照看。
【即学活用】将下列句子变为被动语态
1. We have received many letters since last week. 世纪金榜导学号 _M_a_n__y_l_et_t_e_r_s _h_a_v_e_b_e_e_n__r_e_ce_i_v_e_d_s_i_n_c_e_l_a_st__w_e_e_k_. 2. My friend has bought a new personal computer. _A__n_e_w__p_e_r_so_n__a_l _co_m__p_u_t_e_r_h_a_s__b_e_e_n_b_o_u_g_h_t__b_y_m__y_ _fr_i_e_n_d_.
3. 并不是所有的动词都有被动语态。如happen, occur, take place, break out, belong to, cost, last等不及物动 词或词组, 就没有被动语态。试比较: *Some of the best conversations have ever been happened around the dinner table. (X) *Some of the best conversations have ever happened around the dinner table. (√)
【知识延伸】常见的其他被动语态 1. 一般现在时的被动语态 am/is/are + done 2. 一般过去时的被动语态 was/were + done
3. 情态动词的被动语态 can/may/must/should be done 4. 一般将来时的被动语态 will/shall/be going to be + done
Unit 3 The Internet Discovering Useful Structures
现在完成时的被动语态 【情境探究】 观察下面句子, 体会黑体部分的用法。 1. Much has been written about the wonders of the World Wide Web.
人教版必修二Unit3 The lnternet Discovering useful课件
现在完成时概念：
表示 过去 发生的或 已完成 的动作对 现在 造成的 影响或结果。
Past
present
e.g. 1. I have just opened the door.
结果是 (The door is not closed now.）
常用的时间状语有：
◆常与不确定的时间状语连用，如:
these days, up to now, by now, lately, already, never, ever, just, yet, before, recently, so far, in the past few years等,表 示“到目前为止”所发生的动作.
3. We have planted many trees on the hill in the last two years. Many trees have been planted by us on the hill in the last two years.
Go for Grammar
【注意一】主动语态变被动语态的步骤:
1、一般现在时：is / am / are + done Our classroom is cleaned every day.我们教室每天都被打扫。 2、一般过去时：was / were + done A new shop was built last year.去年修了一座新商店。 3、一般将来时的被动语态构成：will+ be done A new hospital will be built in our city.我们城市将要修建一家新医院。 4、现在进行时的被动语态构成：am / is / are + being done My bike is being repaired by Tom now.王叔叔正在修理我的自行车。 5、过去进行时的被动语态构成：was/were + being done The new road was being made.这条新路正在修筑。 6、 现在完成时的被动语态构成：has / have + been done This book has been translated into many languages.这本书被翻译成多种文字。
2020学年新课程高中英语必修第二册课件：UNIT 3 THE INTERNET Section Ⅲ Discovering Useful Structures
观点)
①The expression on her face confirmed her sadness. 她脸上的表情证明她很难过。
②The latest evidence confirmed me in his honesty. 最新的证据让我坚信他是诚实的。
③The rumours of an attack were confirmed (confirm) later. 发动攻击的谣言后来被证实。
3．用在时间或条件状语从句中，表示将来某时已完成的动 作，即用现在完成时的被动语态代替将来完成时的被动语 态。 You shouldn't leave school before your homework has been finished. 在你的作业没完成之前你不应该离开学校。
[联想发散] 常与现在完成时连用的时间状语：
[即时训练4] 将下面句子变为被动语态 He has sent me an e-mail. →_I_h_a_v_e__b_e_en__s_e_n_t_a_n__e_-m__a_il_. → An e-mail has been sent to me.
品悟—语境中的语法 Li Ming：Hi, Lin Tao. How nice to see you on the first day of the new term! Lin Tao：Yes. Nice to see you again. Li Ming：I know that your parents have been working in that city for about a year. Can you tell me something there after the earthquake? Lin Tao：Of course. Since the earthquake happened, many soldiers have been sent there, and many kinds of supplies (物 资) have been carried there from all over the country. Now, most people there live/are living a happy life again.
2020新教材人教版英语必修第二册同步培优练习：UNIT3 The internet Section Ⅲ含答案
Section ⅢDiscovering Useful Structures &Listening and Talking基础知识预习自检Ⅰ.重点词汇1．battery n. 电池→batteries n．(pl.) 电池2．confirm v t. 确认；使确信→confirmation n．证实；确认→confirmed adj. 成习惯的；根深蒂固的3．press v t. 按，压；敦促→pressure n. 压力；困扰→under_pressure 在压力下；承受压力4．the_World_Wide_Web 万维网5．in_shape 状况良好6．keep_track_of 掌握……的最新消息；了解……的动态7．get_discounts 获得折扣8．bank_account 银行账户Ⅱ.教材原句1．Much_has_been_written (已经写了很多) about the wonders of the World Wide Web.2．Have_you_pressed (你已经按下了吗) the button yet to copy the file?3．Look at the way your face has_been_washed (已经洗过了)．4．Laura needs an app that will help her get_discounts (获得折扣)．5．I believe this app could help me get_thinner (变瘦)．6．Both of Xiao Bo's apps keep_track_of (记录) the steps he takes.7．You get a message whenever there_has_been_an_update (有更新)．8．They've built a kind of new PC with_more_functions (有更多功能的)．9．I have_downloaded (已经下载了) the software to help my phone battery last longer.10．Look at the way the paths have_been_swept (被扫过)．重点知识合作探究press sb. to do sth. 敦促某人做某事press sb. into doing sth. 迫切要求/勉强某人做某事press sb. for sth.催促/逼迫某人做某事press for sth. 迫切要求……press sth. on sb. 勉强某人接受……；促某人吃(或喝)……(2)n. 报章杂志；报刊；印刷媒体the press/the Press 记者；新闻工作者；新闻界press conference 媒体记者会；记者招待会He pressed his back against the door.他后背紧紧靠在门上。
2022_2023学年新教材高中英语Unit2WildlifeProtec学生用书新人教版必修第二册
Section Ⅲ Discovering Useful Structures每/日/金/句：If a large number of wild animals die out, we will break the balance of nature.如果大量的野生动物灭绝了，我们将会破坏自然的平衡。
语言基础集释(教材P 18)It is reported that living spaces for wildlife are being reduced due to the cutting of trees.据报道，由于砍伐树木，野生动物的生存空间正在减少。
◎reduce vt .减少(1)reduce {to … 减少到降低到……by …减少了降低了…… (2)reduce sb. to (doing) sth. 使某人沦落为(3)reduction n . 减少；缩小[佳句] It was foggy ，so the driver had to reduce speed to forty kilometres an hour.有雾，所以司机不得不把速度降低到每小时四十公里。
[练通]——单句语法填空①By taking exercise every day, I have reduced my weight from 65 kilos ________ 50 kilos.②The number of deer has ________ (reduce) by 40 percent due to human's activities.③The cultural relic ________ (reduce) to ruins, which made us depressed.[写美]——应用文佳句④在日常生活中， 我努力减少在这个星球上的碳足迹。
In my everyday life, I ______________________ my carbon footprint on the planet. ◎due adj .由于；因为be due to 由于，归功于……be due to do sth. 预定/计划(做)某事[佳句] Due to great efforts of all the people, COVID-19 has been under control in China.由于所有人的巨大努力，新冠肺炎在中国已经得到控制。
【高一英语新教材必修二】Unit 3 Discovering Useful Structures P30
Unit 3 The Internet
Discovering Useful Structures P30
Discuss: What aspects of change in our life does the Internet bring to us?
Transport Reading Payment Entertainment ...
Exercise
➢s1. FFirisllt ians athPeCbalnadntkhsenwaistha ltahpetopc,oIrrect form of
_th_ha_e_v_ew_b_oe_re_d_ns_u_ins_e_td_he(usber)ainckoeffti.ces and homes
➢ Read the poem. Then think of your own situation and write a similar poem.
Look at the way your face has been washed Look at the way your teeth have been brushed Look at the way your shoes have been cleaned You'd better do them again.
the present perfect passive voice
定义：
①表示动作已经完成，强调对现在造成的影响 和结果。 常与一些副词连用，如already, ever,never, recently,lastly, just,yet等，通常把副词放在 助动词have或has的后面，有时候也可以放在 句末。
2. We have built a new library and a gymnasium
人教版高中英语必修二 UNIT 3 Section C Discovering Useful
【词汇拓展】
confirm an order confirm password confirmation n.
确认订单 确认口令 证实;确认书
Please confirm your new password. 请确认你的新密码。
Once order is received,we shall send an order confirmation by email to
on account of 因为,由于 on no account 决不 account for 解释;说明; (数量,比例上)占
Good suggestions are worth adopting on account of their benefit to us all. 好建议值得采纳,因为它们对我们有益处。 Body language accounts for 55 percent of a first impression while what you say just 7 percent. 身体语言占第一印象的55%,而你说的话只占7%。
三、短语动词的被动语态 1.短语动词是一种固定的词组,由“动词+副词”或“动词+副词+介词”构成, 其作用相当于一个动词。 (1)“及物动词+副词”“及物动词+介词”以及“及物动词+副词+介词”构成的 短语动词可用于被动结构。 At last they put out the fire.→At last the fire was put out. Have you sent for a doctor?→Has the doctor been sent for? My classmates caught up with me in this exam.→I was caught up with by my classmates in this exam.
《Unit 3 Sports and Fitness Discovering Useful Stru
《Sports and Fitness Discovering Useful Structures》学历案（第一课时）一、学习主题本课程的学习主题为“Sports and Fitness”，即“运动与健康”。
第一课时将重点学习关于运动话题的常用英语表达，包括体育活动的种类、健身的重要性、运动对身体健康的影响等。
通过本课时的学习，学生将能够掌握与运动相关的基础词汇和句型结构，为后续深入学习打下基础。
二、学习目标1. 掌握与运动相关的常用词汇和短语，如不同类型的运动、健身器材、运动的好处等。
2. 能够运用所学词汇和句型结构，进行简单的口语交流和书面表达。
3. 理解运动对身体健康的重要性，培养积极向上的运动态度和生活方式。
4. 提高学生的跨文化交际能力，了解不同国家体育文化的差异。
三、评价任务1. 词汇掌握评价：通过课堂小测验，检查学生对新学词汇的掌握情况。
2. 口语交流评价：学生分组进行角色扮演，模拟讨论运动话题，并请同学之间互评交流效果。
3. 书面表达评价：学生完成一篇关于“我喜欢的运动”的短文，教师评阅并给出反馈。
4. 态度与理解评价：通过课堂表现和课后作业，评价学生对运动重要性的认识和态度的转变。
四、学习过程1. 导入新课：教师通过图片或视频展示不同种类的运动场景，激发学生的兴趣。
2. 词汇学习：教师讲解新学词汇，学生跟读并尝试运用词汇进行造句。
3. 听力训练：播放与运动相关的英语对话或短文，学生听后回答问题。
4. 句型结构学习：教师讲解常用句型结构，学生进行模仿造句和口头练习。
5. 口语交流：学生分组进行角色扮演，模拟讨论运动话题，并请同学之间互评交流效果。
6. 书面表达：学生完成一篇关于“我喜欢的运动”的短文，教师评阅并给出反馈。
7. 总结与拓展：教师总结本课时重点内容，引导学生思考运动对身体健康的影响和意义。
拓展相关话题，如不同国家的体育文化等。
五、检测与作业1. 课堂小测验：检查学生对新学词汇的掌握情况。
人教高中英语必修2Unit 3 The Internet学案2：Discovering Useful
Unit 3The InternetDiscovering Useful Structures核心单词1.function n．功能；作用；机能vi.起作用；正常工作；运转(教材P30)They've built a kind of new PC with more functions.他们制造了一种功能更多的新电脑。
the function of a policeman 警察的职责the function of a clock 钟表的功能the function of the heart 心脏的功能perform/serve vital function 起重要作用function as 起……作用；具有……功能function as a mobile phone 具有移动电话的功能❶In your new job you will perform a variety of functions.在新的工作岗位上，你将要履行许多不同的职责。
❷The sofa also functions as a bed.这沙发还可当床用。
❸Flights in and out of Taipei are functioning normally again.进出台北的航班又恢复正常了。
联想拓展：perform/fulfill a(n)...function履行……职责，发挥……作用perform a variety of functions履行多种职责function well/normally运转良好/正常即学即练单句语法填空/完成句子①Compared to the traditional ones, they have three new unique ________ (function)．②Although the electricity was cut off, the hospital continued to ________________ (正常运转)．③To put it another way, his advice ________________ (起……作用) part of the solution.2.confirm vt.确认；使确信；证实；证明；批准confirmation n．证实；确认书；证明书(教材P30)Have you confirmed the Wi-Fi password？你确认Wi-Fi密码了吗？confirm that/wh-证实……It has been confirmed that... 已经证实……confirm sb. in sth. 使某人确信某事confirm sb. as sth. 任命某人担任某职位❶What you have said confirms my prediction.你的话证实了我的预测。
新人教高中英语必修二Unit3Discovering Useful Structures公开课学案
2019新人教高中英语必修二Unit 3 The Internet--Discovering Useful Structures公开课学案学习目标：1.Learn the structure of the Present Perfect Passive Voice and its functions.2.Learn to change the sentences with the Present Perfect Passive Voice into the sentences with the Present Perfect Passive Voice.3.Learn to write sentences with the Present Perfect Passive Voice flexibly according to the context.学习重难点：1.Learn the structure of the Present Perfect Passive Voice and its functions.2.Learn to change the sentences with the Present Perfect Passive Voice into the sentences with the Present Perfect Passive Voice.Learn to write sentences with the Present Perfect Passive Voice flexibly according to the context.学习过程：Part Ⅰ Observe and analyzeActivity 1Read the pairs of sentences.Underline and compare the different verb forms.1.Jan’s life has been greatly improved by the Internet.The Internet has greatly improved Jan’s life.2.Much has been written about the wonders of the World Wide Web.People have written much about the wonders of the World Wide Web.Activity 2How do we form the present perfect passive voice?Fill in the blank.Verb formActivity 3 The usage or functions1．表示过去发生的动作对现在产生的影响和结果，且这个动作与句子的主语有逻辑上的动宾关系。
高二英语选择性必修第二册(2020版)_Unit3_Discovering_Useful语法-精讲破
Unit3 Discovering Useful Structures and Listening and Talking 语法-精讲破过去完成时及其被动语态过去完成时表示在过去某一时间或动作之前已完成的动作（即“过去的过去”）。
过去完成时由“had+过去分词”构成，其被动形式为had been done。
常用过去完成时的几种情况：观察1By the end of last year，we had produced 20，000 cars. The train had left before we reached the station.Had the new plan been discussed before the meeting？By the time he got to the school，the first period had been finished.It was the third time that he had been out of work that year.I had finished reading the novel by nine o’clock last night.归纳1过去的时刻常用包含①等的介词短语或时间状语从句来表示，过去完成时常用于表示在此之②已完成的动作，即③，还可表示从过去某一时间开始一直延续到过去另一时间的动作或状态。
观察2We had hoped that you would come，but you didn’t.I had thought we might travel as far as Oak Valley，but we only managed the first lap of the journey.I had wished festival activities should attract her, but these didn’t work.归纳2表示④的希望、打算、意图、诺言等常用had hoped/planned/meant/intended/thought/wanted/expected等。