2017年必修一英语Module5单元教学案(外研版)

1、.精品文档.2017年必修一英语 Module5单元教学案（外 研版）dule 5 Teahing planPerid 1Intrdutin ≈ Vabulary and SpeakingTeahing ais:1. T intrdue se general siene .2. T learn se wrds related t the thee f this dule .3. T develp speaking ability by pratiing saying the nubers, espeially the fratins.Iprtant and diffiult pints:

2、1. Aruse the students interests and lve in siene.2. Enable the students t understand se eleents abut the heistry lab.3. ake the students knw hw t read the nubers.Teahing predures:IntrdutinAtivity 1The ai f the ativity is t ask the students t finish the quiz abut general siene t aruse their interest

3、in siene. The ativity an be dne as fllws:Firstly, ask the students t g thrugh the fllwingthe quiz and ake their hie n their wn.Quiz: Hw uh d yu knw abut general siene?1. ater exists(a) as a slid, a liquid and a gas (b) as a slid and a liquid nly2. hen yu heat a etal, it will(a) expand (b) ntrat3. St

4、eel is ixture f.(a) irn and ther substanes. (b) irn and xygen4. f the earth s surfae is water.(a) Tw-thirds (b) 50%5. The distane f the sun fr the earth is kileters.(a) 25,500 (b) 150,500,5006 .The earth is 4.6 years ld.(a) illin (b) billin7 . The earth is the n(a) twie as large as (b) frty-nine tie

5、s larger thanThen put the students in pairs t pare their answers and all bak the answers fr the lass.Finally ask the t listen t the tape abut the abvequiz and hek their answers.Answers: 1. a; 2. a; 3. a 4. a; 5. b; 6. b; 7. b.Ativities 2 ≈ 3The teaher an prepare se ards abut different things fr t

6、he lass at first. Befre shwing the students the ards, the teaher an say t the whle lass: Things an be divided int three kinds, natural, an-ade, and either natural r an-ade, nw I ll shw yu se ards in y hand, an yu tell e whih are natural, an-ade r bth?After this, the teaher an ntinue t say t the whle

7、 the lass: an yu give se exaples? Then divide the whle lass int tw big grups t pete. The teaher an ask the Ss t speak ut as any exaples as pssible and write dwn the wrds in the table n the blakbard as fllws:Natural Eg: wd,an-adeEg: glass,Either natural r an-adeEg: water,Finally, ask the Ss t pen the

8、ir bks at Page 41 and read the wrds in the bx alud. If pssible, they an lk up the wrds t knw what they ean. f urse, the abve petitin will ntinue, that is t say, at this ent, the teaher an ask the Ss t put the wrds in the bx n Page 41 in theirbks in the abve table.Vabulary and SpeakingAtivity 1The ai

9、 f the ativity is t have the students knw hw t read the lng nubers. S the ativity an be dne like this:Befre dealing with the ativity, the teaher had better build up a lng nuber byhaving the students say an inreasing sequene, eg:3three33thirty-three333 three hundred and thirty-three3,333 three thusan

10、d, three hundred andthirty-three33, 333 thirty-three thusand, three hundred and thirty-threeAt this tie, st f the Ss will knw the way f reading these lng nubers: where t say “illin ” ,“thusand” ,and “ hundred ” . S in rder t nslidate what they ust learned, the teaher an pratie saying the nubers at t

11、he tp f Page 42 with the students t ake sure the Ss have the rret intnatin.Then ask the Ss t g thrugh the rest f the nubersin Ativity 1 and find the errrs individually arding t the diretins.Finally the teaher alls bak the answers fr the lass.Answers: 1)The wrd “thusand is issing after “fur hundred a

12、nd seventy ； 2)The wrd “ne”(r “a)is issing befre a hundred illin ” .Ativity 2Firstly, the teaher pint at the fratins and say the in English. At the sae tie the teaher have the Ss repeat the after hi r her.Then the teaher and the Ss ake an analysis abut the rules f reading fratins in English tgether.

13、Finally the teaher ask the Ss t read the rest f the fratins in Ativity 2 n Page 42 in their bks in English n their wn. If neessary, the teaher an write dwn the rret answers n the blakbard t hek what they read.Answers: 1. tw-fifths; 2. five-eighths; 3. nine-tenths 4.three-eighths; 5.five-sixths.Ativi

14、ty 3The teaher shuld intrdue the nept f perentage at first, and then the teaher write dwn se perentages n the blakbard and read the ut in English.Eg: 35% - thirty-five perent (r: 35 perent); 50 perent equals a half.Then have the Ss pratie reading alud the fllwing perentages: 40%; 55%; 85%.Finally ha

15、ve the Ss wrk in pairs t desribe thefratins in Ativity 2 as perentages in English .Answers: 1. A quarter is the sae as 25%; 2.ne thirdis the sae as 33.33r%(thirty-three pint three three reurring perent); 3.Fur-fifths is the sae as 80%; 4.ne tenth is the sae as 10%; 5. Three-quarters is thesae as 75%

16、; 6. ne half is the sae as 50%; 7. Tw-thirdsis the sae as 66.66r%(sixty-six pint six six reurringperent); 8. Tw-fifths is the sae as 40%; 9. Five-eighthsis the sae as 62.5%(sixty-tw pint five perent); 10.Nine-tenths is the sae as 90%; 11. Three-eighths is the sae as 37.5%(thirty-seven pint five pere

17、nt);12.Five-sixths is the sae as 83.33r%(eighty-three pint three three reurring perent).Hewrk:1 . Preview the reading part.2 .rk in pairs t finish Ativities 4≈ 5 n Page 43 . Perids 2 ≈ 3Reading ≈ VabularyTeahing ais and deands:1. T learn abut se vabulary and knwledge related t siene and exp

18、erients2. T knw abut se etals and get t knw their ain uses in ur lives3. T ake the students knw hw t d a siple experient and write the reprt abut it in English4. T deal with all the ativities1-6 abut passageA and passage B n page 44-455. T develp students expressin ability as well as reading ability

19、 by pratiing these tw passages6. T raise students interests in siene and fr the rigrus sientifi attitude.Teahing key pints:1. T ake the students understand and grasp the vabulary and knwledge related t siene and experients2. T enable the students t knw hw t read se passages abut siple sientifi exper

20、ientsTeahing diffiulties:T ake students learn hw t write an experient reprtin EnglishTeahing ethds:1. uniative Apprah2. Task-based Apprah3. Aural-ral Apprah with the help f the ulti-edia puter and the rerderTeahing aids:ulti-edia puter; Sftware; PwerPint; RerderTeahing predures:Step 1: Lead-inAt fir

21、st shw the students the piture f a lab with the help f puterThen design the fllwing questins and ask the students t disuss the in grups:1.Are yu interested in ding sientifi experients?2.Suppse yu want t d a heial experient abut se etals, d yu think it is neessary t knw abut hw they reat with ther su

22、bstanes?3.In rder t arry ut an experient suessfully, whatshuld yu prepare fr it?This step is t war up the students and raise theirinterests t speak English in lass. Beause all thesequestins are very lse t the students daily life andstudyingStep 2 : Pre-readingTeaher: Sine yu are interested in ding s

23、ientifiexperients, nw let s get t knw se vabulary and knwledge related t siene and experients.At the sae tie I an type ut se pitures abut se etals n the sreen with the help f the puter as fllws:ptassiu（ 钾） sdiu（ 钠） aliu（ 钙） agnesiu（镁）aluiniu（ 铝）zin（锌）irn（铁）pper（铜）As I type ut eah f the abve pitures,

24、 I an ask thestudents like this: hat s this? And what an it be used fr?At this ent the students interests are prbably apprahing a liax. S I further ask the like this: D yu want t knw re abut these etals? And d yu knw hw we anuse these etals better? ell, this is what we ll studyvery sn.This step is e

25、plyed t reate a language envirnent fr students uniatin and aruse their interests in reading passage A and passage B n page 44-45Step 3: ReadingPassage AT: ell, let s read thrugh passage A with the tape f it very quikly t try t ath its ain idea. Then finish Ativity 2 n page 44 and give yur reasns.Nex

26、t, ask the Ss t read passage A very arefully t find ut the answers in Ativity 3 n page 44. Finish this ativity by ulti-edia puter. It an be designed as fllws:1 .hih f the etals in the table reats the st with xygen and water?Ptassiu, aliu and sdiu.2 .hat happens when yu heat aliu in xygen?It burns t

27、fr an xide.3 .hih etals reat with stea?agnesiu, aluiniu and zin.4 .Des irn have a slw r fast reatin with stea?It has a slw reatin.5 .Des pper reat with water?N, it desn t.Passage BT: ell, fr passage A we an see hw interesting the experient abut the reatin f etals is! But d yu knw hw we an arry ut a

28、heial experient in a lab suessfully? And what is the rret rder t desribe a sientifi experient?Ask the Ss t lk at Ativity 1 n page 44 and give the abut 2 inutes t disuss it. Then llet the answers fr the. At the sae tie type ut the rret answer n the sreen with the puter as fllws:T: Nw, let s e t see “

29、 A siple sientifi experient ” !Then play the tape f passage B fr the students and ask the t read the passage with the tape quikly and finish Ativity 4 n page 44.In rder t lead the students t read the text very arefully, the fllwing task-based questins an be signed t ask the t answer: an yu guess the

30、 eaning f the wrda apparatusthrugh the ntext? Have yu knwn all f the apparatuses f this experient? In the send part f the experient, why ust yu bil the water? And then why d yu add se il t the water?Fr Questin 1, se students aybe feel strange t se apparatuses. If s , the fllwing pitures an be typed

31、ut with the help f puter t help Ss t knw abut:Then in rder t ake the Ss nslidate what they read in passage B and hek if they have understd the experient very well, Ativity 5 n page 46 an be typed ut n the sreen with the help f puter as a task-based ativity。Step 4 : Disussin1. D yu think it is easy r

32、 diffiult fr yu t arry ut a sientifi experient well? And an yu desribe hw t d it suessfully in siple wrds?2. If yu want t learn siene subets well, what qualities d yu think yu shuld have? (Pssible answers: e shuld be areful / serius / diligent /patient /thughtful/ et.)This step is t nslidate what Ss

33、 have learnt in this lessn, in additin t penetrating the ral eduatin t lve siene and fr the rigrus sientifi attitude.Hewrk:1. rite a plete sientifi experient reprt in siple English.2. Underline the language pints yu an t understand in the text.3. G n t read the UTUL RNER reading passage f this dule

34、n Page 49.Teahing suary:1. e ve learnt abut se vabulary and knwledge related t siene and experients2. e ve finished studying passage A and passage B n page44-45.3. e ve knwn hw t arry ut a sientifi experient in a lab suessfully and write a plete sientifi experient reprt in siple EnglishPerid 4Graar

35、: Degrees f parisnTeahing betives:T ake the students grasp the usage f the degrees f parisn.Iprtant and diffiult pints:1. T have the Ss understand all kinds f frs f degree f parisn.2. T enable the students t knw hw t use the degrees f parisn rretly.Teahing predures:Step 1. Lead-inPresent the Ss the

36、fllwing sentenes n the Bb and ask the t disver what kind f degrees f parisn . ak speak English as fluently as T.(2)This shl is better than that ne.(3) This bk is re interesting than that ne.(4) This r is less beautiful than that ne.(5) The weather is getting htter and htter. The harder yu study, the

37、 re yu will ake prgress. He wrks (the) hardest in his lass.Then all the answers fr the lass.Answers: 1.原级；2、3、4、5、6、均为.比较级；7. 最高级.Step 2. Graar strutureFirstly ask the Ss t ake a suary abut the strutures f the degrees f parisn. Then hek the answers.Answers : 3 frs原级、比较级和最高级。Step 3. Detailed Ntes abu

38、t Graar Usage1 .原级的构成和用法1)构成：形容词和副词的原级形式是形容词和副词的 原形。2)用法：当表示双方在程度、性质、特征等莫方面相 等时，用“ as+原级ad./adv.+as ”的结构；当表示双方不相 等时，用“ nt as(s)+ 原级ad./adv.+as ”的结构；当表示 一方是另一方的若干倍时，用“倍数+as+原级ad./adv.+as 的结构。例如：He is as tall as ak. / I speak English as fluently as yu. yur bike is nt as(s) new as hers. This rad is thr

39、ee ties as lng as that ne.2 .比较级和最高级的构成和用法1)构成：规则变化单音节形容词以及少数以一er, -r结尾的形容词和副词加er , est ,例如：fast-faster-fastest;few-fewer-fewest;great-greater-greatest;lever-leverer-leverest nrrw-nrrwer-nrrwest.以e结尾的单音节形容词和副词后以及少数以 -ble,-ple 结尾的双音节形容词和副词后，力口 r,large-larger-largest,able-abler-ablest,siple-sipler-sip

40、lest以一个辅音结尾的单音节形容词，其前面的元音字母 发短元音时，该辅音字母要双写，然后加u er , est.例 如：ht-htter-httest以辅音加y结尾的形容词和少数不是形容词加ly构成的副词要将y改写为i ,再加er , est .例如：easy-easier-easiest, happy-happier-happiestearly-earlier-earliest一般双音节词、多音节形容词和副词在原级前re或st .例如：beautiful-re beautiful-st beautiful; arefully-rearefully-st arefully少数单音节或双音节形

41、容词也加 re和st构成比较级 和最高级。例如：tired-re tired-st tired; pleased-re pleased-s pleased;rwded-re rwded-st rwded不规则变化原级比较级最高级gd, wellbetterbestbad,川wrsewrstany, uhrestlittlelessleastldlder（ 较老、较旧），elder （较年长）ldest（ 最老、 最旧），eldest（最年长）farfarter（ 较远的），further（ 进一步地）farest （最远的）furthest （最深刻地）注意辨析 few-fewer-fewes

42、t 和 little-less-least的差别：前者是规则变化，后者是不规则变化；前者用修饰可数名词，后者用修饰不可数名词。2）用法：比较级的用法双方比较，表示一方超过另一方时，用“比较级+than ” 的结构表示。例如：This bk is better than that ne.表示一方不及另一方时，用“ less+原级ad./adv.+than ”的结构表示。例如：This r is less beautiful than that ne.表示一个方面随另一个方面的程度而变化时，用“ the+比较级（+主语+谓语），the +比较级（+主语+谓语）”的结 构。例如：The harder

43、 he wrks, the happier he feels.The harder yu study, the re knwledge yu will get.表示自身程度的改变“越越-时，用“比较级+and+比较级”结构表示。如：The weather is getting Ider and Ider.The little girl bees re and re beautiful.表示倍数的比较级有如下几种句型：a） “倍数+as+原级ad.+as+被比较对象”，例如：This river is fur ties as lng as that ne.（这条河是那条河的四倍长）b） “倍数

44、+the+size（length, width, depth, height）+f+被比较对象”，例如：This river is fur ties the length f that ne.（这条河是那条河的四倍长）“倍数+比较级ad.+than+被比较对象”，例如：This river is three ties lnger than that ne.（这条河是那条河的四倍长/这条河比那条河长三倍）注意:在比较级的前面可以加上如下一些表示程度的状语，但 要注意其含义的差别a)any加比较级，表示疑问程度，译为“-一些”，“一点”。例如：Are yu feeling any better?b

45、)n/nt(any) 加比较级，表示否定程度，译为“并不例如：Se grw n higher than yur ankles.This fil is nt re interesting than that ne.)a bit, a little, slightly加比较级，表示“稍微，一点(些)例如：ay I stay here a little lnger?This prble is a bit re diffiult than that ne.d)any, uh, a lt, greatly, (by)far, rather, a gd(great) deal 等加比较级，表示“ 得多”。

46、例如：ur shl is uh re beautiful than theirs.The peple here are a great deal riher nw than befre.附by far通常用于强调最高级。用于比较级时，一般放在比较级的后面，如在前面，应在二者中间加“the”。例如：He is taller by far than his brther./ He is by far the taller f the tw brthers.e)even, still 加比较级，表示强调，译为“甚至更 /还要 O例如：He gets even strnger.ak is tall,

47、but T is still taller.f) “数词+名词+比较级”表示确定的程度。例如：He is five years lder than I.I gt up an hur earlier than the thers.最高级的用法三者或三者以上相比，表示最高程度时，用“ the + 最高级”的结构表示。这种句式一般常有表示比较范围的介 词短语。例如：Zhang Hua is the tallest f the three.He wrks (the) hardest in his lass.The Three Grges area is ne f the st beautiful ar

48、eas f hina.最高级可被序数词以及by far, by n eans, uh,nearly, alst, nt quite, nthing like 等词语修饰。例如：The yangtze River is the wrld s third lngest river.Hw uh did the send st expensive hat st?This hat is by far / by n eans / uh / nearly / nt nearly / alst / nt quite / nthing like the biggest.注意:a)作状语的副词最高级前可以不加定冠

49、词。例如：He ae (the) earliest f all the bys.b)exellent(优秀的、极好的 )，extree(极端的)，favurate（最喜爱的）,perfet（完美的）等词本身含有最高 级的含义，所以它们没有比较级和最高级。）形容词最高级修饰作表语或介词宾语的名词、代词时，被修饰的词往往省略。He is the tallest （by） in his lass.3.使用形容词、副词的比较等级时要注意的几个问题在asas之间只能使用原级形容词（副词）。例如：误：I have as less ney as yu d.正：I have as little ney as

50、yu d.切忌采用双重比较比较级前可以用表示程度的修饰语表示强调或程度，但 不可用re加比较级形式。例如：误： His health is re wrse than befre.正： His health is wrse than befre.应避免自我比较使用比较级时，进行比较的双方必须是互相分离、互不包含的独立概念或事物，否则比较就不合逻辑。例如：误：Bab prbably has re uses than any plant in thewrld.正： Bab prbably has re uses than any ther plant in the wrld.附比较的另一方如果是不定

51、代词anyne, anything,前面不能加ther,而要在其后加else.例如：She studies harder than anyne else in her lass.但是，若比较的双方不属于同一范围，句中则不加ther。例如：She runs faster than any by in her lass.表示“两者中较 时，比较级前要加the。例如：The lder f the tw nbleen tk a light and led e int a bak r.被比较的双方必须具有可比性。例如：误：There are re students in this shl than th

52、at shl.正： There are re students in this shl than in that shl.连词than后使用代词主格和宾格有时意义不同。例 如：I knw yu better than he.我比他更了解你I knw yu better than hi.我对你的了解比对他的了解更透彻些（或：“我比他更了解你，此时与同义）。使用最高级时，主语不可被排除在最高级所指的范围 之外。例如：误： He is the tallest f all his brthers.正： He is the tallest f all the brthers.st前面加不定冠词 a/an

53、 ,或者不加冠词修饰形容词 时，它的意思等于 very。此时，st已失去最高级的意义。 试比较：a st interesting fil(一部很有趣的电影 )/ the stinteresting fil( 最有趣的电影)Step 4. PratieExerise 1: ake sentenes abut the parative sizes f the pairs. Use the wrds in the brakets.Exaple: I think the yangtze River is abut 3 ties as lng as the Snghua River.r we an sa

54、y:I think the yangtze River is abut 3 ties lnger than the Snghua River. Lily weighs: 45 kilgras T weighs: ver 90 kilgras (heavy) unt Tai: 1,521 eters unt Qulanga: 8,848 eters(high)inter in Beiing:-5 inter in Harbin:-20 (Id)y huse: 80 square eters y aunt s huse: 160 square eters (large)Exerise 2: Use

55、 the wrds belw t write sentenes as in the exaple.Exaple: teperature/ get /l The teperature gets lwer and lwer. ht etal/ get / big agnesiu/ get / ht sun/ get / strng during the rning sea/ bee / warAnswers:Exerise 1: T weighs ver twie as heavy as Lily./r: T is ver twie heavier than Lily. unt Qulanga i

56、s abut six ties higher than unt Tai./ r: unt Qulanga is abut six ties as high as unt Tai(3) inter is 4 ties lder in Harbin than in Beiing./ r: inter is 4 ties as ld in Harbin as in Beiing.y aunt s huse is twie as larger as y huse./ r: y aunt s huse is twie larger than y huse.Exerise 2:(l)The ht etal is getting bigger and bigger.(2) The agnesiu is getting htter and htter.The sun is getting strnger and strnger during the rning. The sea is being warer and warer.Hewrk:1 . Finish the exerises 2, 3 ≈ 4 n page91-92 in their wrkbk.2 .Preview the rest f this dule.Perid 5Listening and riting, Ev