Unit2CloningⅠ.单项填空1．—Whatarethoseonthe________？—The________thathavefallenoffthebigtrees.A．roofs；leavesB．rooves；leavesC．roofs；leafsD．rooves；leafs2．Shealwaysdiffers________me________howtospendthevacation.A．on；withB．with；onC．at；withD．from；in3．Heundertook________theworkingconditions.A．improvingB．beingimprovedC．toimproveD．tobeimproved4．Tom，JackandRosewerenamedasassistantprofessors.Believeitornot，________threeofthemwereof________age.A．/；anB．/；theC．the；anD．the；the5．Iwasabouttogiveupmyefforttoworkonthepuzzlewhenagoodidea________me.A．beatB．struckC．attackedD．caught6．—Mom，mayIplaythecomputergamesforawhile?—________！Dadisinthestudy.A．HelpyourselfB．It’suptoyouC．BehaveyourselfD．Goahead7．Ourschoolforbids________，thatistosay，wearenotallowed________atschool.A．tosmoke；tosmokeB．students’smoking；smokingC．studentstosmoke；smokingD．students’smoking；tosmoke8．Ihavesome________withJapanese，butIdon’tspeakitfluently.A．resistanceB．acknowledgementC．acquaintanceD．access9．LiMingwonthefirstprizeintheEnglishspeechcontestandI’mgladthathiseffortsatlast________.A．paidoffB．workedoutC．gotbackD．turnedout10．Shewas________byherhusband’ssuddendeathandlossofherpetdog.A．castdownB．castawayC．castoffD．castaside11．Wereally________youagreatdealforallyourhardworkthisyear.A．costB．payC．oweD．offer12．Thechildismuchtooyoung；Iobject________himaloneathome.A．toleavingB．leavingC．toleaveD．leave13．—HowIwishIhadstudiedharderwhenIwasinseniorschool!—Ifyouhad，you________auniversitystudentnow.A．areB．wouldbeC．shouldD．were14．ProfessorLi’sbookwillshowyou________canbeusedinothercontexts.A．thatyouhaveobservedB．howyouhaveobservedC．howwhatyouhaveobservedD．howwhathaveyouobserved15．Therecentinformationhasbeenputforward________morehighschoolgraduateswillbeadmittedintouniversities.A．asB．whichC．whileD．thatⅡ.阅读理解AOursonstoodupandleftus.Wewatchedashegotupfromhisseat，walkedpastusslowly，andjoinedtheotheryoungboysandgirlswalkingtowardsthechildren’sclassroom.Hisfaceshowedamixoffearandexcitement，andhestayedclosetohissisterashemoveddowntheaisle.MywifeandIsattogether，alonethereforthefirsttime.Ibegantofeelsad，alongingforsomethingIcouldn’tdescribewell.Iglancedatmywife.Atearrolleddownhercheek.Shewasfeelingthesamething.Islidover，andweheldhands.Ourlastchildwasenteringthefirstgrade，andwefeltpartofhimslippingaway.He’dbeinschoolforafulldaynow.He’dbemoreindependent，andneeduslessoften.And，he’dneveragainbethetoddlerheoncewas.Inour“staypositive”culture，manyparentsonlyseethesetimesasareasontocelebrate.Theyseeitasaninevitablechange，andpreparethemselvesforthenextchallenge.ButIcouldn’thelpfeelingthis.Ididn’twanttoburymyfeelingofsadness.Thosewhoprotectthemselvesfromthesemomentsloseagreatopportunityofgrowth.Itisthekindofgrowththatresultsfrompain，andmakesusallmoreapartofthehumanfamily.Halfanhourlater，mysonreturnedtous，hiseyestwinkling.Hewasexcitedtotellusabouthisnewexperience.Welistenedtohim，andhissmilingfacehelpedtoeasethesadness.Infact，itwasimpossiblenottofeelhappyforhim.Loving_your_kids_is_not_always_easy.Therearepainfultimeswhenweseethemmovingawayfromus.Butwemustnotavoidorrunawayfromthesefeelings，fortheygiveusthechancetoincreaseourcapacityforjoy，whileweareexperiencinggreatsadness.16．Theauthor’ssonstayedwithhissisterclose...
