高中英语人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection课堂教学课件ppt

这是一份高中英语人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection课堂教学课件ppt，共28页。PPT课件主要包含了 Lead in，Summary 等内容，欢迎下载使用。
Teaching bjectives:
By the end f this perid, yu will be able t…
1. identify and analyze the usage f direct speech and indirect speech.2. use indirect speech t express yur ideas.3. raise the awareness f envirnmental prtectin.
Q1. Can yu find ut what the fllwing sentences have in cmmn?
An expert wh has studied plar bears fr many years said that frm the psitin f its dead bdy, the bear appeared t have starved and died.Expert claimed that lw sea-ice levels caused by climate change meant the bear culd nt hunt seals as befre, s it had t travel greater distances in rder t find fd.Climate scientists have warned that if we d nt take apprpriate actins, this warming trend will prbably cntinue and there will be a higher price t pay.
_____________
__________________________
________________________________________________
Observe and analyze: find ut the differences
1. “I dn’t knw that,” he said.→He said that he didn’t knw that. 2.“I think this is yur watch,” Li Hua said.→Li Hua said that he thught that was my watch. 3.“I have lived here fr tw years,” she said.→She said that she had lived there fr tw years. 4. “I will finish the paper tday,” she said.→She said that she wuld finish tha paper that day. 5. “He will cme as sn as pssible,” she said.→She said that he wuld g as sn as teacher asked, “ Where have yu been?”→The teacher asked me where I had been.
Observe and analyze
方向性动词的变化
Difference:
Rules:Direct speech reprts the exact wrds f the speaker. Indirect speech reprts what a speaker said in ur wn wrds. If we want t change direct speech int indirect speech, we will change tenses, prnuns, and ther wrds when necessary. First, if a verb in qutatin marks is in present tense,change t crrespnding past tense; if a verb is in simple past tense, change t past perfect tense.Secnd, persn prnuns change accrding t the persn f the bject f the reprting verb. Third, adverbs that shw nearness in direct speech are usually changed int wrds that shw distance in direct speech.
直接引语和间接引语1. 基本概念（1）直接引语：直接引述别人的话，把它放在引号内，叫直接引语。（2）间接引语：用自己的话转述别人的话，叫间接引语。【点拨】直接引语变为间接引语时，从句中的人称、时态、指示代词、时间状语和地点状语等一般均要作相应的变化。
2. 人称的变化直接引语变为间接引语时，人称的变化遵循以下原则。（1）一随主：直接引语中出现的第一人称代词要按照引述动词的主语的人称变化。She said，“I wn’t be frustrated.” → She said that she wuldn’t be frustrated. 她说她不会沮丧的。（2）二随宾：直接引语中出现的第二人称代词要按照引述动词的宾语的人称变化，若引述动词后没有宾语，也可用第一人称。I tld Mary，“We will prtect yu frm infectin.” → I tld Mary we wuld prtect her frm infectin. 我告诉玛丽我们会保护她不受感染。（3）第三人称不更新：直接引语出现的第三人称代词一般不需要变化。She said t me，“They want t decrease the amunt f fat they eat.” → She tld me that they wanted t decrease the amunt f fat they ate. 她告诉我，他们想减少脂肪的摄入量。
3. 时态的变化直接引语变为间接引语时，如果主句是过去的某种时态，则间接引语的时态应相应向前推一个时态，如下所示： 一般现在时→ 一般过去时现在进行时→ 过去进行时现在完成时→ 过去完成时一般过去时→ 过去完成时过去完成时→ 过去完成时（不变） 过去进行时→ 过去进行时（不变） 一般将来时→ 过去将来时
【点拨】（1）如果直接引语中有明确的表示过去时间的状语，变为间接引语时，时态不变。My mther said t me，“The museum was cmpletely transfrmed in 2017.” → My mther tld me that the museum was cmpletely transfrmed in 2017. 我母亲告诉我，图书馆在2017 年被彻底改造了。（2）如果直接引语表述的是客观真理，变为间接引语时，时态不变。The gegraphy teacher said t us，“The earth travels arund the sun.” → The gegraphy teacher tld us that the earth travels arund the sun. 地理老师对我们说：“地球围绕太阳转。”
4. 指示代词、时间状语、地点状语和动词的变化（1）指示代词this → that 　　　these → thse He said t me，“This is the Schl Cmputer Centre.” → He tld me that was the Schl Cmputer Centre. （2）时间状语nw → then tday → that day this mrning/week → that mrning/week yesterday → the day befre yesterday mrning → the mrning befre next week → the next week/the fllwing weeklast week → the week befre tw days ag → tw days befre tmrrw → the next day/the fllwing day the day befre yesterday → tw days befre the day after tmrrw → in tw days’ time （3）地点状语here → there （4）动词cme → g 　　　bring → take
5 .句型的变化（1）直接引语是陈述句，间接引语用连接词 that 引导，that 可省略。His mther said t me，“Mr Harry in charge f the wrk. ” → His mther tld me that Mr Harry was in charge f the wrk. 他的母亲告诉我，亨利先生负责这项工作。（2）直接引语是一般疑问句，间接引语用 whether/if 引导，疑问语序变为陈述语序，谓语动词 say（said）改为 ask（asked）。Mr Tnny said t me，“Are yur injuries severe?” → Mr Tnny asked me if/whether my injuries were severe.托尼先生问我伤势是否严重。
（3）直接引语是特殊疑问句，间接引语用原来的疑问词引导，疑问语序变为陈述语序。Mary asked me，“When did the British prince becme infected with the disease?” → Mary asked me when the British prince became infected with the disease. 玛丽问我这位英国王子是什么时候染上这种病的。（4）直接引语是祈使句，间接引语变为 ask/tell/rder sb.（nt） t d sth. 句式。He said，“Dn’t subscribe t her view.” → He tld me nt t subscribe t her view. 他告诉我不要同意她的观点。【注意】祈使句中的 please 在间接引语中必须省略。“Please pass me the pump，”he said t her. → He asked her t pass him the pump. 他请她把水泵递给他。
Pratice-- activity 1 Guess wh students are talking t and then change the sentences int indrect speech.
1. Bill was driving t fast, s I tld him t slw dwn.2. Mther was answering the phne, s she_______________________.3. Sue was a little nervus abut the exam, s was carrying a large bx in her hands and wanted t g ut, s she asked___________________.5. I wanted t invite Mary ut fr dinner, s I_____________________.6. Jack just came back frm his hliday. I________________________.7. William didn’t shw up at my party, s I_______________________.8. The phtgrapher was taking pictures f an ld cuple. He____________________.9. It was quite late when her sn gt hme, s she___________________.
A ”Please slw dwn!”B “Culd yu hld the dr fr me, Henry?”C “Turn the vlume dwn, Jim”D “Dn’t wrry t much abut it”E “Did yu have a gd time?”F “Why didn’t yu cme t the party?”G “D yu like Italian fd?”H “Hw lng have yu been married?”I “Just g t bed.”
Activity 2 Ask students t read the sentences in the bx and use them t cmplete the sentences that fllw, using indirect speech as the example given.
2 C Jim t turn the vlume dwn3 D her nt t wrry t much abut it4 B if he culd hld the dr5 her if she liked Italian fd6 E them if he had had a gd time7 him why he hadn’t cme t the party8 H them hw lng they had been married9 him t just g t bed
I heard ver the radi reprter said was annunced authrities warned that...
Language use and share--Wrk in pairs. Reprt a piece f news that yu heard tday t yur partner. The fllwing expressins may help yu.I heard ver the radi that...
I heard ver the radi that we culd recycle ld clthes at the lcal schl.
The reprter said that many peple had attended the meeting abut lcal envirnmental issues.
It was annunced that a charge fr plastic bags wuld be intrduced next year.
The authrities warned that there wuld be strict fines n anyne breaking the new envirnmental laws.
The expert advised researchers estimated cmpany claimed plice cmfirmed that...
The expert advised that actin wuld be necessary in the next 12 years t stp glbal temperatures rising t much.
The researchers estimated that the glacier had decreased in size since last year.
The cmpany claimed that they had cut their factry’s emissins by ver 50%.
The plice cnfirmed that the gang had been respnsible fr the illegal waste dumping.
Activity 2 Wrk in grups. D a survey n what yur grup members are ding t help the envirnment and what else they can d. Then reprt t the class.
One pssible cnversatin
I asked my grup members what they did t limit the amunt f carbn dixide prduced in their daily lives. Jack tld me that he ften walked r rde a bike instead f taking a taxi. Je advised us t share bks with thers. Sally asked us...
Last mnth yu met yur frmer classmate Sarah, an exchange student frm Canada. Here are sme f the things she said t yu. Nw yu are telling anther friend what she said. Use indirect speech.①I’m living in Beijing nw.②I saw Helen at a party last week and she gave me her new cell phne number.③I haven’t seen paul fr a lng time.④I’m applying t becme a vlunteer at the science museum.⑤I dn’t take cking classes any mre, but I still enjy cking.⑥I’ll g t Xi’an fr the cming hliday with my parents.
Cnslidatin-- Activity 1
Fill in the blanks(turn direct speech int indirect speech)1.“I never eat meat,” he said He said that________ never ______ meat.2.“I’ve fund my wallet, "he said t me. He_______ me that he ______________wallet.3."I tk it hme with me, "she said. She said that________________ it hme with her.4. The teacher said, "The sun rises in the east and ges dwn in the west.”The teacher said that the sun_________ in the east and_________ dwn in the west.5."I met her yesterday, "he said t me.He ______me that he________ met her the day__________.
Cnslidatin--Activity 2
had fund his
she had taken
6."Yu must cme here befre five, "he saidHe said that I______ t g_______befre five.7."I bught the huse 10 years ag, "he said.He said that he ________bught the huse 10 years________.8. He said t me, "Did yu see her last week?He__________________I had seen her the week ________.9. He said, "Yu can sit here. Jim. "He ________Jim that he _______sit there.10. He asked, "Hw did yu find it, mther?"He asked his mther ___________ fund it.
asked me if/whether
11." Where have yu been these days?"he askedHe asked me ___________ been ________ days.12. He said t me, "D yu knw where she lives?"He asked_____________ knew where she_________.13."Stp making s much nise, children, "he said.He_______ the children ________ making s much nise.14."Dn' t tell him the news. "she said.She tld me ____________ him the news.15. He said t me, "Are yu interested in this?" He__________________ I was interested in__________.
where I had
me if/whether I
Cnslidatin--Activity 2
1.She said t me, "Stp writing and listen t me.”______________________________________________2.She said t me, " Which ne d yu like best? "______________________________________________3.She asked me, "Have yu watched TV last night?”_____________________________________________________4.Jim asked me, "Are yu busy tday?”______________________________________________5.The ld wrker said, "Dn’t frget the past.”___________________________________________________
Cnslidatin-- Activity 3
She tld me t stp writing and listen t her.
She asked me which ne I liked best.
She asked me if/ whether I had watched TV the night befre.
Jim asked me if/whether I was busy that day.
The ld wrker tld us nt t frget the past.
6.Pick said, "I will take Mary here next time.”______________________________________________7.Father asked me."Wh brke the windw?”______________________________________________8.He said t me, "I’ve left my bk in my rm.”______________________________________________9.She said, "He will be busy.”______________________________________________10.She said t Tm, "Can yu help me?”______________________________________________
Pick said that he wuld take Mary there the next time.
Father asked me wh had brken the windw.
He said t me that he had left his bk in his rm.
She said that he wuld be busy.
She asked Tm if/whether he culd help her.
Cnslidatin-- Activity 3