必修3Unit4講學(xué)稿祥解

Unit4 Astronomy:thescienceofthestars 講學(xué)稿姓名________ 學(xué)號(hào)________Ⅰ.詞組練習(xí)1.及時(shí)，終于8.既然______________________________2.下蛋9.以為起點(diǎn)_______________四面八方高興,振奮_______________冷卻______________________________11.4.產(chǎn)生，分娩______________________________12.掌握的技巧5.輪到某人/訣竅______________________________6.爆發(fā)13.在表面______________________________7.阻止14.密切注視，當(dāng)心_____________________________Ⅱ.單詞練習(xí)①寫出下列單詞的變化形式1.系統(tǒng)(n.)_____________；系統(tǒng)的(adj.)_____________2.球體，地球(n.)_____________；全球性的(adj.)_____________3.猛烈的(adj.)_____________；暴力(n.)_____________ ； 猛 烈 地(adv.)_____________生存(v.)_____________；生存(n.)_____________物理學(xué)家(n.)_____________；物理(n.)_____________；身體的(adj.)_____________6.生物學(xué)(n.)_____________；生物學(xué)家(n.)_____________7.宗教（n.）_____________；宗教的（adj.）_____________8.原子（n.）_____________；原子的（adj.）_____________②用所給單詞的適當(dāng)形式填空1.Thetreatmenttheygavehimdidhimmore___________thangood，thoughthedoctorinsisteditwas___________.(harm)2.Air_____________everywhereandits____________makesitpossibleforustoliveon.(exist)3.He is very _____________.Forexample，theliftingdevicehemadeisa_____________ofropesandpulleys.(system)4.A _______tourmeanstraveling allaroundthe________.(globe)5.Theuseof_____________againsttheattackersled to more __________clashes.(violently)6.Shewasa_____________womanwhowouldn，thurtanant.(gently)③選詞填空Multiplying

exist

prevent

Puzzled

puzzling

are blocked

crashedcheer

floated

toexhaust1._____________veryfast，rabbitssoonbecamethelargestfamilyofalltheanimalsinthiswoods.2._____________atthe_____________result，hestoodthere，notknowingwhattodo.3.There is no need _____________yourselfclearingup—we，lldoitourselves.4.Doeslife _____________on otherplanets?5.Many roads _____________aftertoday，sheavysnow，soyou，dbetternotgoout.6.It was reported that a plane_____________soonafterittookoff，causing10deaths.Ⅲ.重點(diǎn)句型1.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.(P26) 水會(huì)對于生命的發(fā)展起關(guān)鍵作用，這一點(diǎn)在當(dāng)時(shí)并不明顯。Itis/wasobviousthat...“很明顯”剖析：It is adj. that...在本句中，it是形式主語，that引導(dǎo)的從句作真正的主語。it做形式主語時(shí)，后面的真正主語可以由不定式，動(dòng)名詞或從句充當(dāng)。如：Itiseasiertobreakdownfriendshipthantobuildupfriendship.破壞友誼比建立友誼要容易。ItwasamazingthatthechildcouldspeakEnglishsowell.那個(gè)孩子的英語說得如此好真是令人驚異?！艋顚W(xué)活用 模仿造句。(1)很明顯，我們在這里是非常受歡迎的。_____________thatweareverywelcomehere.(2)你現(xiàn)在不方便見我的經(jīng)理。__________________________________________________(3)對著灑了的牛奶哭泣是沒有用的。__________________________________________________2．Thismadeitpossibleforlifetobegintodevelop.這就使得生命開始進(jìn)化成為可能。it作形式賓語的句型是：主語＋動(dòng)詞＋it＋形容詞/名詞＋不定式/從句或動(dòng)名詞。◆活學(xué)活用 模仿造句。（1）這使我難以控制自己。This made_____________tocontrolmyself.（2）他認(rèn)為去前線是他的責(zé)任。__________________________________________________（3）我們規(guī)定，課內(nèi)外都講英語。__________________________________________________Ⅳ.語言點(diǎn)1.Theymultipliedandfilledtheoceansandseaswithoxygen，whichencouragedthelaterdevelopmentofearlyshellfishandallsortsoffish.(P26)他們繁殖起來就使得早期的海洋充滿了氧氣，這為早期的貝類及其各種魚類的發(fā)育進(jìn)一步創(chuàng)造了條件?！粼~語歸納encouragesb.todosth鼓.勵(lì)某人做，慫恿某人做urgesb.todosth.鼓勵(lì)某人做，慫恿某人做urgeodoingsth鼓.勵(lì)某人做，慫恿某人做◆即學(xué)即練（1）父親總是鼓勵(lì)我學(xué)好英語。__________________________________________________（2）老師鼓勵(lì)我報(bào)名參加演講比賽。__________________________________________________2.Beforeweleft，LiYanpingexplainedtomethattheforceofgravitywouldchangethreetimesonourjourney...(P30)在啟程以前，李彥平向我解釋說，在我們的航行中會(huì)有三次引力的改變。注意下列句中force的意思。1）Weforcedthedooropenandarrestedthetwomurderers（.強(qiáng)迫,強(qiáng)行）2）Theforceofgravityisreallymysterious（.力量）（3）Whenhewasonlyseventeen，hejoinedtheforcestodefendhiscountry.(軍隊(duì))（4）Asmostmensufferedfromthisstrangedisease，themajorityofthelabourforcesinthisvillagewerewomenandchildren.(勞動(dòng)力)◆詞語歸納forceopen強(qiáng)行打開byforce依靠武力forcesb.todosth迫.使 做comeintoforce（法律）實(shí)施forceodoingsth迫.使做inforce大批的forceone，sway強(qiáng)行前進(jìn)或進(jìn)入forcesth.onsb把.強(qiáng)加于◆即學(xué)即練選用上述詞組完成下列小片段。Itwasreportedthattwopeasantworkers(1)____________(被迫)work14hoursadaybutwithlittlemoney.Oneofthemcouldn’tstanditandoneofthem(2)_____________(強(qiáng)行前進(jìn)或進(jìn)入)theboss，shouseandkilledhim.Theother(3)_____________（強(qiáng)迫）abankclerk(4)_____________（hand）inthemoney.3.Icheeredupimmediatelyandfloatedweightlesslyaroundinourspaceship.(P30)我高興起來，由于失重，我在太空船艙里飄來飄去。注意下列句中cheer的意思。（1）Thegoodnewscheeredthefamily.（使高興，歡呼,為喝彩）（2）Seeyoutomorrow，thencheers（〈.口語〉謝謝，干杯，再見）◆短語歸納cheerup高興起來，振奮起來cheersb.up使(）充滿歡喜、希望、鼓舞（1）咱們?nèi)ゲ賵鰹槲覀兊年?duì)員加油吧。__________________________________________________（2）振作起來！我們的困難很快就會(huì)過去的。__________________________________________________Ⅵ.語法填空（一）MostAmericansdon’tliketogetadvice1___________membersoftheirfamily.Theygetadvicefrom“2__________(strangers)”.Whentheyneedadvice,theydon’tusuallygotopeopletheyknow.3__Instead________manyofthemwriteletterstonewspapersandmagazines4___that/which______giveadviceonmanydifferentsubjects,5__________(including)familyproblems,theuseoflanguage,health,cooking,childcare,clothes,andevenonhow6__________(tobuy)ahouseoracar.Mostnewspapersregularlyprintlettersfrom7___________(readers)withproblems.Alongwiththeletters8___________areanswerswrittenbypeoplewhoaresupposedtoknowhowtosolvesuchproblems.Someofthesewritersaredoctors,9_____others_____arelawyersoreducators.Buttwoofthemostfamouswritersofadvicearewomenwithoutspecial10_________(training)forthiskindofwork.（二）LiuXiangwasthefirstAsian1___________(win)themen’s110mhurdlesattheOlympicsinAthens.2___After_______thathebecameanidol(偶像)totheyoungpeople.“IneverthoughtIwouldrununder13secondsandbreaktheOlympic3_____record .”saidLiu Xiangintears, “Iamveryveryexcited.Inotjustfor myselfandfor Chinese4__but_______forAsia.Myracewent5___________(wonderfully)fromstartto finish.” Liu added. “It is6____an______ amazing experiencebeingtheOlympicchampion.Iwanttothankmy