Unit 3 The internet 复习课件-高中英语人教版(2019)必修第二册

2. Online communities and social networks have changed people’s lives. 3. The club has helped many people. 4. The Internet has greatly improved Jan’s life.
8. press vt. & vi. 按，压，挤 vt. 逼迫，催促，极力劝说 n. 新闻界；报刊 9. account n. 账户；描述；理由；账目
vi. & vt. 解释；说明；考虑。 accountant n. 会计 10. privacy n. 隐私；私密 p地r，iva秘te密[ˈp地raɪvət ] adj. 私有的，私人的；隐秘的privately adj. 私下
5. Has anyone made a comment about the online database? Has a / any comment been made about the online database?
Present perfect passive voice
语态用来表示主语与谓语之间的关系，它是动词的一种形式。英 语中有两种语态：主动语态和被动语态。主动语态表示主语是动 作的执行者，而被动语态表示主语是动作的承受者。 思考：什么时候用被动语态？
n主etw语or和ks.谓语是被动的关系： 3➢. M表any示p动eop作le 从hav过e b去ee一n h直elp持ed续by到th现e c在lub，. 有可能还会继续进行 4➢. Ja动n’s作lif已e h经as 完bee成n g，re强atly调im对pr现ov在ed造by成the的In影ter响net或. 结果
n. 枯枝; 棍，棒（状物) 4. keep sb company 陪伴某人 ccoommppaanniyonn.n同. 同伴伴，陪伴→ accompany v. 陪伴 5. benefit n. 益处 vt. 使受益 vi. 得益于 意为具体的好处时可数。 benefitial adj. 有益的；有帮助的；有利的；
the wonders of the World Wide Web.
2. People’s lives have been changed by online communities and social networks. 3. Many people have been helped by the club. 4. Jan’s life has been greatly improved by the Internet.
Present perfect passive voice
总结 1. 现在完成时的被动语态中been 一定不能忘记。 2. 注意break, catch, teach等动词的过去式和过去分词的 不规则变化形式。 3. 不及物动词（短语动词）没有被动语态，如：happen, take place, die, appear, break out, belong to等。
since he was famous.
现在完成时的被动语态
Present perfect passive voice 总结
➢ 一般过去时的被动语态表示一个被动的动作发生在过去； ➢ 现在完成时的被动语态表示被动的动作或状态发生在过 去，但一直持续到现在或者强调过去的动作对现在有影响。
Present perfect passive voice
Present perfect passive voice
现在完成时的被动语态的句式： The research has been done successfully.
现在完成时被动语态的肯定式：have / has been done The author’s new story has not been published.
6. inspire vt.鼓舞;激励;启发思考 Inspiration n. 灵感 inspiring adj.令人鼓舞的 inspired adj.受到鼓舞的 7. access n. 通道；（使用、查阅、接近或面见的）机会
vt. 进入；使用；获取 accessible adj. 可获得的，可取得的，可到达的
Part 2
Grammar
Present perfect passive voice
Can you find the sentences with the present perfect passive voice in the passage on P28?
1. Much has been written about the wonders of the World Wide Web. 2. People’s lives have been changed by online communities and social networks. 3. Many people have been helped by the club. 4. Jan’s life has been greatly improved by the Internet.
将来时 shall / will be done
shall / will have been done
过去将来时的被动语态：should / would be done
Present perfect passive voice
拓展与补充一 In 1908, the Olympic Games was held here for the first time.
➢ 不知道动作的执行者 ➢ 没有必要指出动作的执行者 ➢ 强调动作的承受者
Present perfect passive voice
思考：现在完成时的被动语态有什么意义？
1. Much has been written about the wonders of the World Wide Web. 2. People’s lives have been changed by online communities and social
拓展与补充二 He has been told many times, and he finally understood it.
现在完成时的被动语态
Having been told many times, he finally understood it.
现在分词完成被动式
The poor have been oppressed and exploited for so long.
Present perfect passive voice
The basic composition of passive voice
一般时
进行时
完成时
现在时 am / is / are done am / is / are being
done
has / have been done
过去时 was / were done was / were being done had been done
Present perfect passive voiceCompare a Nhomakorabead Find
Which group is better? Why?
1. Much has been written about the
1. People have written much about
wonders of the World Wide Web.
Present perfect passive voice
Change the sentences below into the present perfect passive voice.
1. I have downloaded the software to help my phone battery last longer. The software has been downloaded to help my phone battery last longer.
11. rude adj. 粗鲁的；无礼的 rudeness n.无礼；粗暴 rudely adv.粗鲁地；无礼地 12. particular /pəˈtɪkjələ(r)/ adj. 特定的;特别的;讲究的 particularly adv. 尤其是，特别是 13. embarrassing /imˈbærəsɪŋ/ adj. 让人难堪(尴尬;害羞)的 vt. & vi. 按，压，挤 embarrassed adj.感觉尴尬的 embarrass vt. 使尴尬 embarrassment n. 尴尬 14. familiar /fəˈmɪljɚ(r)/ adj. 熟悉;熟知 familiarity n.熟悉，知晓 15. define /dɪˈfaɪn/ vt. 给……下定义;界定;解释 definition n. 定义
Unit 3
The Internet
CONTENTS
单词 语法 语言点 课文
Part 1
Words
1. identity /aɪˈdentəti/n. 身份;个性 identity card 身份证 identify v. 认出，确认 identification n. 识别，鉴定，确认 2. convenient /kənˈvinɪənt/adj. 方便的;近便的 c可on数v名en词ien。ce 便利，方便，为不可数名词；便利的事物或设施，为 inconvenient adj不便利的 3. stuck adj. 卡住； 陷（入）；困（于） stick vi. 坚持 vt. 刺；伸出；粘贴 → stick – stuck - stuck
现在完成时被动语态的否定式：have / has not been done Has his washing machine been repaired?
现在完成时被动语态的一般疑问句：把have / has提到主语的前面 Who has been invited?
现在完成时被动语态的特殊疑问句：特殊疑问词 + have / has been done
现在完成时的被动语态
The poor, having been oppressed and exploited for so long,
took up their guns and knives to kill rich nobles.
一般过去时的被动语态
The Olympic Games has been held in many countries since
the 1900s.
现在完成时的被动语态
He was invited to deliver a speech last week.
一般过去时的被动语态
He has been invited to deliver a speech to many companies
2. Someone has lost an identity card. An identity card has been lost.
3. Have you confirmed the Wi-Fi password? Has the Wi-Fi password been confirmed?
4. Have you pressed the button yet to copy the file? Has the button been pressed yet to copy the file?
5. The software has been downloaded to help my phone battery last longer. 6. Has the Wi-Fi password been confirmed? 7. Has the button been pressed yet to copy the file? 8. An identity card has been lost.