八年级英语下册Unit7What’sthehighestmountainintheworldSectionB1a-2e课件新版人教新目标版.ppt

第四课时：SectionB(1a-2e),Unit7,Whatsthehighestmountainintheworld?,课文呈现,知识讲解,第四课时：SectionB(1a-2e),词汇听写,课堂导入,1a,1b,课堂小结,课后作业,课堂练习,同学们，上一课学习的单词你们都掌握了吗？现在大家来检验一下，点击下面的音频开始听写吧！,Howmuchdoyouknowaboutpanda?,Comparefactsaboutthesetwoanimals.Usethelanguageintheboxtohelpyoumakesentences.,1a,Examplesentence：Thiselephantweighsmanytimesmorethanthispanda.（200cmtallershorter，weighmuchmoreless，eatmuchmoreless，eatmanytimesmore）,Thispandais200cmshorterthanthiselephant.Itweighsmuchlessthanthiselephant,too.Thiselephanteatsmuchmorethanthispanda.Iteatsmanytimesmorethanthispanda.,Thiselephantweighsmanytimesmorethanthispanda.这只大象比这只大熊猫重很多倍。,知识点,1,考向一,weigh既可作及物动词，表“称重”，也可作连系动词，表“有重；重”。eg：Iweighedthebox.Itweighs20kg.我称了这个盒子，它重20公斤。,典例,He_（weight）only70kilosnowaftertakingabalanceddiet.,weighs,其名词形式为weight。常用短语：inweight在体重方面。eg：Theboyweighs20kg.Theboyis20kginweight.这个男孩重20公斤。,拓展,考向二,timesn.倍表示“A比B长（宽、高、大、重等）N倍”时，其结构为“Abe基数词（N1）times形容词比较级thanB”。eg：Thishallisfivetimesbiggerthanourclassroom.这个大厅比我们的教室大四倍。,“两倍”可用twice表示。,【注意】,表示“A的长度（宽度，高度，大小，重量等）是B的N倍”，可用“Abe基数词（N）timesas形容词原级asB”结构。eg：Thistreeisthreetimesastallasthatone.这棵树是那棵树的三倍高。Hisfatheristwiceasoldashe.他父亲的年纪有他两倍大。,拓展,Listenandcheck（）thenumbersyouhear.,1b,_100_16_20_50_120_0.1_0.2_150,Teacher：Doyouhaveanyquestionsaboutbabypandas?Boy1：Aretheymuchsmallerthananadultpanda?Teacher:Yes.Whentheyreborn,theyonlyweighabout0.1to0.2kilos.Boy1:Wow,thatssmall!Iknowanadultpandaweighsmanytimesmorethanababy.Teacher:Thatsright.Andtheadultpandasweighabout100kilos.Boy2:Whataboutthesizeofababypanda?Howsmallisit?,1b,Teacher:Atbirth,itsonlyaround15cmlong,butanadultpandaisaround150cmlong.Girl1：Isababypandaalsoblackandwhite?Teacher:No,youwouldneverguess!Ababypandaispinkanditcannotsee.Italsodoesnthaveanyteeth.Girl1：Howlongcanpandaslive?Teacher：Theycanliveupto20to30years.,1c,Listenagainandcompletethesentences.Atbirth，ababypandaisabout_to_kilos.2.Atbirth，ababypandaisabout_cmlong.3.Ababypandaisnotblack.Itis_andithasno_.4.Apandacanliveupto_to_years.,0.1,0.2,15,pink,teeth,20,30,Teacher：Doyouhaveanyquestionsaboutbabypandas?Boy1：Aretheymuchsmallerthananadultpanda?Teacher:Yes.Whentheyreborn,theyonlyweighabout0.1to0.2kilos.Boy1:Wow,thatssmall!Iknowanadultpandaweighsmanytimesmorethanababy.Teacher:Thatsright.Andtheadultpandasweighabout100kilos.Boy2:Whataboutthesizeofababypanda?Howsmallisit?,1c,Teacher:Atbirth,itsonlyaround15cmlong,butanadultpandaisaround150cmlong.Girl1：Isababypandaalsoblackandwhite?Teacher:No,youwouldneverguess!Ababypandaispinkanditcannotsee.Italsodoesnthaveanyteeth.Girl1：Howlongcanpandaslive?Teacher：Theycanliveupto20to30years.,atbirth出生时,知识点,2,考向一,atbirth相当于whenonewasborn。eg：Thebabyweighedthreekilosatbirth.Thebabyweighedthreekiloswhenitwasborn.这个婴儿出生时体重为三公斤。,考向二,birth作名词，意为“出生，诞生”。eg：Doyouknowhisdateofbirth？你知道他的出生日期吗？,givebirthtosb./sth.生孩子/产仔eg：ShegavebirthtoasecondchildinJanuary.一月她又生了一个孩子。,拓展,upto到达（某数量、程度等）；至多有；不多于,知识点,3,eg：Thereareupto2,000studentsinourschool.我们学校有多达两千名学生。,eg：Uptonoweverythinghasbeensuccessful.到目前为止，一切都很顺利。（2）uptosb.某人的责任；由决定eg：IthinkIwillleaveituptoyou.我想让你决定。,upto的其他含义：（1）upto直到；到为止,拓展,1d,Taketurnstellingyourclassmatesaboutpandas.,A：Ababypandacannotsee.B：Anadultpandaweighsmanytimesmorethanababypanda.,2a,Talkaboutpandasinyourclass.Usethesewordstohelpyou.,bigbamboozoopopularcuteblackandwhiteSichuanfamousendangeredbeautifulforestprotect,2b,Readthearticletofindoutwhatthesenumbersmean：10,12,300,2,000.,ScanningThismeansmovingyoureyesquicklydownthepagetofindspecificinformation.,Itis8：30a.m.attheChengduResearchBase.Pandakeepersarepreparingmilkforthebabypandasbreakfast.At9：00a.m.，theyfindthatmostof,thebabiesarealreadyawakeandhungry.Whenthebabiesseethekeepers，theyrunovertothemwithexcitementandsomeoftheyoungpandasevenwalkintotheirfriendsandfallover！,LinWei，oneofthepandakeepers，says“Theyresocuteandlovely.Itakecareofthemliketheyremyownbabies.Iwash，feedandplaywiththemeveryday.Theyreveryspecialtome.”Infact，manypeoplearoundtheworldlovetheseblackandwhiteanimals.PandashavebecomesopopularthattheyarenowasymbolofChina.,Scientistssaytherearenowfewerthan2,000pandaslivingintheforests.Another300orsoliveinzoosorresearchcentersinChinaandothercountries.Pandasdonothavemanybabies，maybeonlyoneeverytwoyears.Thebabiesoftendiefromillnessesanddonotliveverylong.Adultpandasspendmorethan12hoursadayeatingabout10kilosofbamboo.Manyyearsago，therewerealotmorebambooforestsandpandasinChina，butthenhumansstartedtocutdowntheseforests.Astheforestsgetsmallerandotherhumanactivitiescausemoreproblems，pandascannotfindenoughtoeatandtheyarehavingfewerbabies.,AneducationprograminChengduteacheschildrenaboutpandasandotherendangeredwildanimals.Theysendpeopletoschoolstotellchildrenabouttheimportanceofsavingtheseanimals.,AndtheChinesegovernmentistryinghardtohelpsavethepandas.Scientistsaredoingresearchtobetterunderstandthehabitsofpandas.Weallhopethatinthefuturetherewillbealotmorepandas.,awake/wek/adj.醒着,知识点,4,awake此处用作形容词，意为“醒着的”，它在句中常作表语。反义词是asleep。eg：Isheawakeorasleep？他是醒着还是睡着了？,拓展,wake既可用作及物动词也可用作不及物动词，意为“叫醒；醒来”。短语wakeup/wakesb.up醒来；叫醒某人。,考向,eg：Iwokeupveryearlythismorning.我今天早上醒得很早。Pleasewakemeupatsixinthemorning.请早上六点叫醒我。,典例,Afterworkingallnight，Katecouldntstay_thenextmorning.（wake）（盐城）,awake,fallover绊倒,知识点,5,【辨析】falldown，falloff和fallover,这三个短语都表示“摔倒、跌倒”的意思，但它们各自的含义不同。,考向,eg：Isawthelittlegirlfallover.我看到这个小女孩跌倒了。Theboyhitthetreesohardthathefelldown.男孩重重地撞在树上，结果自己倒下了。Thegirlisfallingoffthebike.（Thegirlisfallingdownfromthebike.）女孩正从自行车上摔下来。,Scientistssaytherearenowfewerthan2,000pandaslivingintheforests.科学家说现在有不到2000只大熊猫生活在森林里。,“Therebesb./sth.doingsth.地点”表示“某地有某人或某物正在做某事”。其中doingsth.是后置定语，与其修饰的词是逻辑上的主谓关系，表示人与动作是主动关系。,知识点,6,考向,eg：Thereisatruckcollectingtherubbishoverthere.在那边有一辆卡车正在收垃圾。Therearesomepeoplepickingapplesonthefarm.在农场上有一些人正在摘苹果。,典例,Therearesomeboys_basketballoverthere.Letsgoandjointhem.（恩施）A.areplayingB.playingC.toplay,【点拨】本题用固定句式法。句意：有一些男孩正在那边打篮球。固定句式：Thereis/aresb./sth.doingsth.有某人/某物正在做某事。,B,在therebe句型中，当主语为多个并列的名词时，be动词的形式与离它最近的名词保持一致，即遵循“就近原则”。eg：Thereisasciencelabandtwolibrariesinmyschool.Therearetwolibrariesandasciencelabinmyschool.我的学校有一个科学实验室和两个图书馆。,拓展,【难点】,orso大约,orso意为“大约”，常用在被修饰词后，而about，around表“大约”时，常用在被修饰词之前。eg：Wewillcompletetheprojectintwoweeksorso.我们大约两周后完成这个项目。,知识点,7,考向,典例,Myparentswillmovebackinayear_.A.hardlyB.oftenC.orsoD.about,C,2c,Readthearticleagainandwriteshortanswerstothequestions.,1.WhatisLinWeisjob？_,Sheisapandakeeper.,2.Whatdothebabypandashaveforbreakfast？_3.Whyarepandasendangered？_,Milk.,Becausehumansstartedtocutdownforests.Andthereislessbambooforthepandas.,4.WhatdoestheeducationprograminChengdudo？_5.Whyarescientistsdoingresearch？_,Itteacheschildrenaboutpandasandotherendangeredwildanima