高中英语 unit4 Astronomy Reading1教学课件2 新人教版必修3 课件VIP免费

1.What’sthemainideaofthetext?Howlifebeganontheearth.2.Howmanypartscanthetextbedividedinto?Twoparts:Part1(para1)Part2(para2.3.4)Watermadeitpossibleforlifebegintodevelop.Thedevelopmentoflivingthings.Readthepassagequicklyandfindouttheanswerstothequestionsbelow.•Readparagraph1,andanswerthefollowingquestions.•1.Howdidwatercomeintobeingontheearth?•2.Whatisthesignificanceofthepresenceofwaterontheearth?Theexplosionoftheearthproducedwatervapour,whichturnedintowaterwhentheearthcooleddown.Itallowedtheearthtodissolveharmfulgasesintooceansandseas.Reading-II----skimming(3m)Puttheorderofdevelopmentoflifeintoatimeline.A.insectsandamphibiansappearB.asolidballC.reptilesappearD.acloudofdustE.shellfishandotherfishappearF.dinosaursappearG.smallplantsgrowonthewaterH.plantsbegintogrowondrylandI.presenceofwaterJ.mammals(includinghumans)appearDBIGEHACFJ•Readthesecondandthirdparagraphsandputthedevelopmentoflifeinthechart.1___________2_________4.__________5.__________3___________6.__________7.__________8.__________9.__________smallplantsinwatershellfishandallsortsoffishgreenplantsonlandinsects(onland)amphibian(onlandandinwater)forestsmammals(onland)reptiles(onland)dinosaurs(onland)Reading-II----detailreading(3m)1.Whyisitwronginfilmsandstoriestoshowdinosaursandpeopletogether?2.Whydoyouthinkthathumansarethecleverestanimalsontheearth?Dinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth.Becausetheyhavelargerbrainsthananyothercreaturesontheearthsofar.Afterreadingthepassage,answerthefollowingquestions.1.Itexplodedloudlywithfireandrock,whichwereintimetoproducethewatervapour,….intime(forsth/todosth):intime(forsth/todosth):notlate及时；不迟Shewillbebackintimetopreparedinner.她来得及回来准备晚饭。intimeintime:soonerorlater;eventually迟早；最后I’llseehimintime.总有一天我会遇见他。Swimmingisdifficultbutyou’lllearnitintime.Doyouthinkwecangetthereintimeforthetrain?in/outoftime:in/notinthecorrecttime合/不合节拍(sth)beto(do):(something)willdefinitelyhappen,oritmusthappen不可避免要发生或必须发生。e.g.Theysaidgoodbye,littleknowingthattheywerenevertomeetagain.Sheistobehonouredforthisgreatwork.Theaudienceclappedintimetothemusic.观众合着音乐的节拍拍手。beto(do):表示按计划、安排要发生的动作Whenaretheytohandintheirplan？表命令Tellhersheisnottobebacklate!(sb/sth)bedifferentfrom:notlikesomeoneorsomethingelseinoneormoreways与……不同。2.Nobodyknewthatitwasgoingtobedifferentfromotherplanetsgoingroundthesun.Citylifeisquitedifferentformcountrylife.都市生活与乡村生活是非常不同的。goingroundthesun为现在分词短语，做定语，表示一般的动作。例如：Menbreakingthelawwillbepunished.Menwhobreakthelawwillbepunished.现在分词短语作定语,也可表示进行的动作.例如Canyouseethegirldancingwithyourboyfriend?Canyouseethegirlwhoisdancingwithherboyfriend?3.Thisencouragedthedevelopmentofearlyshellfishandallsortsoffish.这为早期贝类及其他各种鱼类的发育进一步创造了条件。名词后缀-ment加在动词之后表示：1.行为，例如：argument,betterment,development,treatment。2.结果，例如：arrangement,settlement,statement.3.工具，例如：instrument,pavement.4.Itallowedtheearthdodissolveharmfulgases,whichhadbecomepartoftheearth’satmosphere,intotheoceansandseas.allowvt.允许、许可、容许allow+n./pron./doingallowsb.todobeallowedtodoMyfatherdoesn’tallowsmokingathome.Infacthedoesn’tallowustosmokeanywhereatanytime.Areweallowedtousethecomputer?5.Thisencouragedthedevelopm...