Unit7Whatsthehighestmountainintheworld-SectionAGrammarFocusSectionB1a1d导学案人教版八年级英语下册

Unit7What’sthehighestmountainintheworld?SectionAGF&SectionB1a1d第三课时【学习目标】1可以准确说出并默写本课重点生词、短语。2.继续巩固形容词比较级和最高级的用法，如何对于事物的属性进行提问以及倍数的概念。3.培养通过数据的表示，对食物的特点进行比较和说明。【学习重难点】重点：巩固形容词比较级和最高级的用法，如何对于事物的属性进行提问以及倍数的概念。难点：通过听力训练，提升提取信息的能力。【学法指导】研读课本第5253页及第121页单词表对应部分，根据导学案上的要求完成【自主学习】、【整体建构】、【小试牛刀】和【我的困惑】部分。【自主学习】学习活动一：基础知识大联盟任务一：请自主预习单词及短语，并完成下列句子。Theelephant____________(重量是…)about5000kilos.An____________(成年的)pandaeatsabout10kilosoffoodaday.MymothertoldmethatIwasonly50cmlong___________________(出生)Myfatheristhree_________(倍)tallerthanmyyoungersister.__________________（太平洋）isoneofthefourbiggest____________(海洋).Adogcanlive____________(至多)10to15years.任务二：熟读P52GrammarFocus句子，并完成课本P524a练习（填写在书上）任务三：根据以上句子和练习，再次自主总结形容词比较级/最高级的用法吧。1.形容词和副词的比较级与最高级的变化规则（1）规则变化情况规则例词一般情况直接加es/esttall→___________→______________以不发音的字母e结尾的加r/stnice→___________→__________以＂辅音字母+y＂结尾的变y为i，再加er/estdry→_____________→_____________heavy→___________→______________重读闭音节先双写辅音字母，再加er/estthin→_____________→______________多音节和部分双音节单词在词前加more/mostdelicious→_____________→____________（2）不规则变化原级比较级最高级good,well____________________bad,ill____________________many,much____________________little____________________far______/___________/_____2.形容词/副词原级的用法（1）用于＂as...as...＂结构中，否定形式为notas/so...as...。Thispictureisnot_________good________thatone.这幅画不如那幅好。（2）表示＂A是B的……倍＂时，用A＋谓语动词＋倍数＋as＋原级＋asB。Ourschoolisthreetimesaslargeastheirs.我们学校是他们学校的三倍大。（3）修饰形容词原级的词：very，too，so，enough等。Thegirlissobeautiful.这个女孩是如此的漂亮。3.形容词/副词比较级的用法（1）A＋谓语动词＋比较级＋thanB...A比B……Mybikeis_______________thanhers.我的自行车比她的好看。（2）Which/Who＋谓语动词＋比较级，AorB?Whoruns_______,JimorTom?谁跑得更快，吉姆还是汤姆？（3）表示＂越来越……＂时用比较级的重叠结构，即＂比较级＋and＋比较级＂，多音节词和部分双音节词用＂moreandmore＋原级＂。It’sbeing___________and______________.天气变得越来越冷了。Theproblemisbeing_________________________________.问题变得越来越严重了。（4）表示＂越……就越……＂时用＂the＋比较级，the＋比较级＂。_________________________youare,_______________________youwillmake.你越细心，犯的错就会越少。（5）表示＂两者之间比较……的一个＂时常用＂the＋比较级＋ofthetwo＂。Heisthe________________________ofthetwo.他是两个中较瘦的那一个。（6）修饰比较级的词和短语有alittle，abit，alot，much，far，even等。Youare________________________thanJim.你比吉姆瘦点儿。4.形容词/副词最高级用法（1）三者或三者以上比较用最高级，形容词最高级前加the，副词可不加。句末常跟in/of短语表示范围。Tomis_______________________inhisclass.汤姆是他班里最聪明的。He___________________________intheclass.在这个班里他跑得最快。（2）Which/Who＋谓语动词＋the＋形容词/副词最高级，A，BorC?Whois___________________,Tom,KateorBill?谁是最高的，汤姆、凯特还是比尔？（3）表示＂最……的……之一＂时用oneof＋the＋形容词最高级＋复数名词。MissXuisoneof_____________________________________________inourschool.徐老师是我们学校最受欢迎的老师之一。（4）表示＂第几最……＂时，可在最高级前加序数词。TheYellowRiveris___________________________________________riverinChina.黄河是中国的第二长河。【注意】有些形容词，如dead，empty，round，sure，woolen等受本身含义的限制，没有比较级。5.形容词比较级和最高级之间的转换The形容词最高级=形容词比较级thananyother+名单=形容词比较级thantheother+名词复数(1)Billisthetallestinourclass.Billis_________than______________________________inourclass.Billis_________than______________________________inourclass(2)ShanghaiislargerthananyothercityinChina.Shanghaiis____________________________inChina.任务四：关于倍数的用法。在英语中，常用____________表示倍数，其中两倍为“twice”，manytimes好几倍常用结构为：A+be(实意动词)+倍数+形容词比较级+than+B练习：1）大象比熊猫重很多倍。Theelephant__________________morethanthepanda.2)这把尺子比那把长两倍。Thisruler________________________thanthatone.常用结构还有：A+be(实意动词)+倍数+as+形容词原形+as+B练习：1）这棵树是那棵树的三倍高。Thetreeis______________as_______asthattree.任务五：语中长，宽，高的表示方法：（两种）=1\*GB3①基数词+单位词+形容词（long/wide/deep/high等）=2\*GB3②基数词+单位词+in+名词（length/width/height/depth等）练习：这个坑有三米深。Theholeis__________________.=Thehole_____________________________.这建筑物有50米高。Thebuildingis________________=Thebuilding_________________________.2.insize=haveanareaof(尺寸上，大小方面)如：这个岛屿的面积大约是5平方千米。Theislandisabout5_________kilometers________________.【整体建构】恭喜你完成了自主学习！现在请整理思路，梳理本部分的知识结构。（自主整理本节课重点单词短语，句型以及语法结构；必须采用思维导图形式）【小试牛刀】一、阅读填空

OnApril8,areportcameoutonthelivesofhighschoolstudentsinChina,Japan,SouthKoreaandtheUS.Itsurveyedaround6,200students

(1)

thefourcountrieslastyear.Youwillfindtheanswerstomanyofyourquestionsinthisreport.

Whostudies

(2)

(hard)ofthem?

Chinesestudentsspendthemosttime

(3)

(study).NearlyhalfChinesestudentsspendmorethantwohoursontheirhomeworkeveryday.That'smuchmore

(4)

thestudentsoftheUS(26.4%),Japan(8.2%)andSouthKorea(5.2%).

Whosleepsmostofteninclass?

Japanesestudentsfall

(5)

(sleep)inclassmostoften.About45%ofthemsaidtheysometimessleepinclass.

InSouthKorea,it's32%;intheUS,21%;and5%inChina.

SouthKoreanstudentsdon'tliketakingnotes.About70%saidtheywritedownwhattheteachersaysinclass,much

(6)

(few)thaninJapan(93%),China(90%)andtheUS(89%).

Whoisthemostdistracted(分心的)?

Americanstudentsare

(7)

(active)inclass,butalsothemostdistracted:64.2%saidtheychatwithfriendsinclass;46.9%saidtheyeat

(8)

inclass;and38.9%saidtheydomanythings

(9)

(include)sendinge－mailsordoingsomeotherthingsinclass.

Whatdotheydoafterschool?

Intheirsparetime,mostChinesestudentsstudyorsurftheInternet.MostAmericanstudentshangoutwiththeirfriends.MostJapanesestudentsdophysicalexercise.MostKoreanstudentswatchTV.Maybeallthestudentsshouldgooutmoreandlearnmore

(10)

manandnature.

Themostimportantquestionisthatwhocanachievethemost.Canyoutellme?anotherplace.Thepeopleinthedesertare__14__toeachother.Theyarereadytohelpthepeople__15__andgivethemfoodandwater.二、完形填空Youmaythinkthereisnothingbutsandinthedesertoftheworld.It'snot__1__.Inthedesertyoucanfindsmall__2__orevenbigones.Wecanseehills,too.Thereisalittleraininthedesert,__3__itisnotenoughformostplants.Stillwecanseesomeplantsthere.Thereissome__4__insomeplacesinthedesert.We__5__theseplacesoases(绿洲).Sometimesthewater__6__underthegroundortheriversrunningthroughthedesert.Intheoases,therearevillagesandtowns.People__7__allkindsofcrops(庄稼)inthefieldsthere.Peoplealso__8__outsidetheoases,butthesepeoplearenotfarmers.They__9__camels(骆驼),sheep,andotheranimals.Theanimals__10__theplantsthereanddonotneedmuchwater.Thepeopleofthedesertdonotliveanywhereforlong.Theykeep__11__fromoneplacetoanother.Theymustalways__12__grassordesertplantsfortheiranimals.Theyusuallyliveinthetents.Whenthereisnomore__13__fortheiranimals,theytakedowntheirtentsandleaveforanotherplace.Thepeopleinthedesertare__14__toeachother.Theyarereadytohelpthepeople__15__