Unit 4 Topic 1 Section A 课件 2

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1、Unit4AmazingScienceTopic1Whenwasitinvented?SectionA课件2Review1）Kangkang,couldyougiveussomeadviceonhow___________(learn)Englishwell?2）How__________(improve)itwasmybiggestproblem.3）MydifficultyinlearningEnglishishow______(get)thepronunciationright.4）Idon’tknowwhen___

2、_______(start)tomorrow.5）Theymayknowwhat_________(do)next.tolearntoimprovetogettostarttodoWhataretheFourGreatInventionsinancientChina?Doyouknow?ChinesefourgreatancientinventionscompassgunpowderprintingPapermakingModerninventionsTalkabouttheinventions(发明).Whichoned

3、oyouthinkisthemosthelpfulinventioninourdailylife?carTVmobilephonecameraclockWhowasteainventedby?ItwasinventedbytheChineserulercalledShenNong．ShenNongHowwasitinvented?boilingwateroveranopenfirefellinto…andremained…producedanicesmelltastedthebrownwater—teaItwasinven

4、tedbyaccident.Guessinggame!potatochips185018701853Whenwasitinvented?根据句意和所给汉语提示,完成下列单词的确拼写。1.That’sthemost_________(有用的)book.2.ItissaidthatThomasEdisonhad1,093___________(发明)duringhislifetime.3.---Whatisthiskindofmachineusedfor?---It’susedfor_________(听)to music.4

5、.Ifyou_________(加热)theice,itwillsoonbecomewater.5.Childrenalsoneedtime_________(玩耍).usefulinventionslisteningheattoplayCompletethesentenceswiththecorrectformsoftheverbsinthebox.1.Oneoftheworld’sfavoritedrinkswas________byaccident.2.Teawasfirst________byShenNong5,0

6、00yearsago.3.Anicesmellwas_________whenthetealeavesdroppedintothehotwater.4.Teawas__________toKoreaandJapanduringthe6thand7thcenturies.5.Teaisnow________betweenmanydifferentcountries.invent,drink,bring,produce,tradeinventeddrunkproducedbroughttradedGrammar一般过去时态的被

7、动语态结构:was/were+V过去分词一般过去时态的被动语态结构注意：这里be的形式决定了被动语态的时态，其后的过去分词没有变化。肯定句主语+was/were+V过去分词+(by…)否定句主语+was/were+not+V过去分词+(by…)一般疑问句Was/Were+主语+V过去分词+(by…)?特殊疑问句特殊疑问词+was/were+主语+V过去分词+(by…)?Mariaboughtthebooklastyear.(主动句)ThebookwasboughtbyMarialastyear.Whenwasthebook

8、boughtbyMaria?WhatwasboughtbyMarialastyear?被动句：让我们看一看各种句型的主动语态变为被动语态时，到底发生了什么变化？Exercises中考真题链接1.—IfeelveryhappythatI____tobethehost.—Congratulations!A.