Unit4Astronomy：thescienceofthestarsSectionⅢ—UsingLanguage，SummingUp&LearningTip練習(xí)一、單項(xiàng)填空1．He______atoncewhenIpromisedtohelphim.A．cheeredup B．gaveupC．brokeup D．turnedup2．Itwasduringtheelectionperiodthatabigfire______.A．brokeinto B．brokedownC．brokeup D．brokeout3．______I'mwellagain，Icangoonwithmywork.A．Evenif B．AsthoughC．Evenafter D．Nowthat4．______！Thereisdangerahead.A．Watchout B．TakecareofC．Cheerup D．Notice5．Thedoctorhadalmostlosthopeatonepoint，butthepatientfinally______.A．pulledthrough B．pulledoverC．pulledin D．pulleddown二、單句改錯(cuò)1．Whatweshouldwatchoutistheterribleanimal.________________________________________________________________________2．ThefirewasbrokeoutlastSunday.________________________________________________________________________3．NowthatyouwanttolearnEnglishwell，soyoushouldworkhard.________________________________________________________________________4．Theboyknowshowtocheerhimupwhenheissad.________________________________________________________________________5．Doyouknowwhythespaceshipdoesn'tfallbacktheearth?________________________________________________________________________三、完成句子，詞數(shù)不限1．他迅速拉了一下繩子。Hegave____________ontherope.2．為了使她高興，我?guī)タ措娪?。Itookhertothecinemato____________.3．既然你已完成了工作，就應(yīng)該好好休息一下。Youshouldhaveagoodrest____________you'vefinishedthework.4．你能告訴我第一次世界大戰(zhàn)發(fā)生在什么時(shí)候嗎？CanyoutellmewhentheFirstWorldWar__________________？5．我想你應(yīng)該提防那個(gè)人。Ithinkyoushould____________thatman.四、閱讀理解Noneofourearlyancestorscoulddigestmilkasadultsbecausetheirbodiesneverhadto—milkdrinkingsimplywasn'tanoption.Aspeoplebegantoextractmilkfromanimals，though，somepeopledevelopedtheabilitytokeepdrinkingitthroughouttheirlives.Scientistsnowknowofamilkrelatedmutation(變異)inourgenes—thechemicalinstructionsforlifethatwecarryinalmosteverycellinourbodies.Peoplewhohaveamutatedformofoneparticulargenecandrinkmilkjustfine.Peoplewithoutthemutationtendtogetsickfrommilk.Tofigureoutwhere，andpossiblywhy，milkdrinkingstarted，somescientistshavebeenlookingatwhohasthemilkdigestingmutationtoday.Patternsarestriking.MostadultsinNorthernandCentralEuropeareabletodigestmilk—andtheydo.CheeseandbutterandotherdairyproductsarepopularincountriessuchasSweden，Denmark，GermanyandEngland.BecauseEuropeansettlersdominatedNorthAmerica，mostpeopleherecanhandlemilkjustfine，aswell.ThatmayexplainwhyicecreamissuchapopulardessertintheUnitedStates.InmuchofAfrica，AsiaandSouthAmerica，ontheotherhand，peopletendtoavoiddairyproductsbecausetheyleadtodiarrhea(腹瀉)andotherstomachproblems.That'swhyyouwon'ttypicallyfindcheeseonthemenuataChinese，JapaneseorEthiopianrestaurant.NativeAmericansarealsounabletodigestmilk.Becauseofthesegeneticpatterns，scientistshavelongthoughtthatmilkdrinkingstartedinNorthernEurope，wheredairyisaninstitutionandthemilkdigestingmutationiseverywhere.Arecentstudypaintedadifferentpicture.Withacomputermodel，Thomasandhiscolleagueslookedatthespreadofthemilkdrinkingmutation，farmingandotherrelatedfactors.Workingbackward，thescientistsconcludedthatthefirstmilkdrinkerslivedinCentralEuropearoundwhat'snowHungaryabout7,500yearsago.Thepracticedidn'tstartfarthernorth，asscientistshadthoughtbefore.1．Whichofthefollowingistheproperorderofeventsaccordingtothepassage?a．Theirchildrenwereabletodigestmilkasadults.b．Theygotsickfrommilk.c．Somepeoplegotamutationintheirgenes.d．Somepeopletrieddrinkingmilkfromanimals.e．Somepeoplestartedtodrinkmilkfromanimalsonaregularbasis.A．c→d→b→e→a B．d→e→b→c→aC．d→b→e→c→a D．e→d→b→c→a2．MostpeopleintheUSAcandigestmilkbecause______.A．theyhavestrongstomachsB．theirancestorswereEuropeansC．that'swheremilkdrinkingstartedD．farmersraisealotofcowsthere3．Whichofthefollowingistheauthormostlikelytoagreewith?A．MilkdrinkingfirststartedinNorthernEurope.B．MilkdrinkingfirststartedinCentralEurope.C．NorthAmericanIndianswereabletodigestmilk.D．DairyproductsareverypopularinNorthKorea.4．Themainfocusofthescientists'researchwas______.A．mutationofhumangenesB．developmentofthehumanstomachC．whymilkdrinkingstartedD．wheremilkdrinkingfirststarted五、書面表達(dá)請根據(jù)下面的表格內(nèi)容寫一篇關(guān)于中國實(shí)現(xiàn)太空夢的短文。時(shí)間進(jìn)展情況長期以來中國人夢想進(jìn)入太空1999年至2002年成功地發(fā)射了三艘無人飛船2002年12“神舟四號”發(fā)射升空，并成功地返回地面，完成了七項(xiàng)科學(xué)實(shí)驗(yàn)，為下一步載人飛船的發(fā)射作準(zhǔn)備“神舟四號”的成功發(fā)射和返回，表明中國有能力把人送入太空2003年中國第一艘載人飛船進(jìn)入太空2008年中國人實(shí)現(xiàn)了太空行走的夙愿2011年“天宮一號”(TiangongⅠ)有望發(fā)射，中國人將擁有首個(gè)太空站。注意：1.詞數(shù)：120左右2．參考詞匯：無人駕駛的unmanned；載人的manned；飛船spacecraft(單復(fù)同)；發(fā)射launch(vt./n.)________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

參考答案一、1.Acheerup“感到高興，感到振奮”；giveup“放棄”；breakup“解散，結(jié)束”；turnup“出現(xiàn)”。由whenIpromisedtohelphim可知此處用cheeredup表示“他立刻感到振奮”。2.Dbreakinto“闖入”；breakdown“分解，崩潰，失敗”；breakup“解散，結(jié)束”；breakout“(戰(zhàn)爭/火災(zāi))爆發(fā)”。句意：大火是在選舉期間發(fā)生的。3.Devenif的含義是“即使”；asthough＝asif，其含義是“好像”；evenafter的含義是“即使在……之后”；nowthat的含義是“既然”。由下文的“我能夠繼續(xù)我的工作”可知，此處應(yīng)用Nowthat來表示“既然我的身體恢復(fù)健康了”。4.Awatchout表示“當(dāng)心”；takecareof表示“關(guān)心，照料”，而takecare才是“當(dāng)心”的意思；cheerup表示“感到高興，感到振奮”；notice表示“注意到”，需接賓語。此處應(yīng)用Watchout表示“當(dāng)心！前面有危險(xiǎn)”。5.Apullthrough“渡過難關(guān)，(使)恢復(fù)健康”。二、1.在out后加for2.去掉was3.去掉so4.him→himself5.back后加to三、1.aquickpull2.cheerherup3.nowthat4.brokeout5.watchoutfor四、1.C細(xì)節(jié)理解題。由第一段最后一句可知d排第一，排除A、D兩項(xiàng)；由第二段最后兩句可判斷d、b應(yīng)該是緊挨著的，排除B項(xiàng)，再結(jié)合常識可知C項(xiàng)切題。2．B細(xì)節(jié)推理題。由第四段“MostadultsinNorthernandCentralEuropeareabletodigestmilk—andtheydo...BecauseEuropeansettlersdominatedNorthAmerica，mostpeopleherecanhandlemilkjustfine，aswell.”和最后一段中的“Workingbackward，thescientistsconcludedthatthefirstmilkdrinkerslivedinCentralEuropearoundwhat'snowHungaryabout7,500yearsago.”可推知B項(xiàng)正確。3．B細(xì)節(jié)判斷題。由最后一段中的“Workingbackward，thescientistsconcludedthatthefirstmilkdrinkerslivedinCentralEuropearoundwhat'snowHungaryabout7,500yearsago.”可知A錯(cuò)誤，B項(xiàng)正確。由“NativeAmericansarealsounabletodigestmilk.”可知C項(xiàng)錯(cuò)誤。由“InmuchofAfrica，AsiaandSouthAmerica，ontheotherhand，peopletendtoavoiddairyproductsbecausetheyleadtodiarrheaandotherstomachproblems.”可知D項(xiàng)錯(cuò)誤。4．D主旨大意題。綜觀全文可知，A項(xiàng)范圍太廣，B項(xiàng)偏題，C項(xiàng)只是文章的一個(gè)細(xì)節(jié)，故選D項(xiàng)。五、【寫作指導(dǎo)】※主題：thedreamofspace※必備詞匯：dreamof，unmannedspacecraft，success，scientific，experiments，carryout，makepreparationsfor，besentintospace※必備句型：TheChinesepeoplehavebeendreamingof...Thepurposeoftheflightisto...Itwasin2008thattheChinesedreamofwalkinginspacecametrue.參考范文：TheChinesepeoplehavebeendreamingofgoing