人教版高中英语 课时精练：Unit4__Using__Language课时作业

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1、课时精练：Unit4UsingLanguage课时作业Ⅰ.单词拼写1．Mostschoolsare________(视察)atleastonceayear.2．Hisstoriesusuallyhaveahappy________(结尾)．3．Thehouseisguardedbya________(凶猛的)dog.4．Thetablewascoveredwithalayer(层)of________(灰尘)．5．________(恐龙)wereverylargeanimals，someofwhichcouldclimbtr

2、ees.6．What'sthecauseofthis________(事件)?7．Wearepaid________(根据)tohowmuchworkwedo.8．We________(感激)youreffortsforthedevelopmentofthecompany.9．Theyoungermanwill________(接替)Mr.Whiteasdirector.10．Once________(咬)byadogyoushouldgotoadoctor.Ⅱ.阅读理解AChina'sgiantpandashowsthea

3、chievementoftheinternationalefforttosaveanimalsthatarenowindanger.Intelevisionprogrammesweoftenseepandasplayingfunnygames.Childrenhavepandatoysandbeautifulcardswithpicturesoflovelypandasinthem.Theyoftenvisitthegiantpandasinthezooontheirholidayandhaveagoodtimethere.

4、However,scientistsareworriedaboutthefutureofgiantpandas.Theyknowonlyabout1，000giantpandasremainalivetoday.Theythinkthegiantpandawilldieoutin30yearsifthepresentconditionsarenotimproved.Itisreportedthatthegiantpandashaveaverylowbirthrate.About115pandasliveinzoosandre

5、searchcentresmainlyinChina,butduringthepasttenyearstheyproducedonly34youngpandasthatarestillalive.Survivalrateforgiantpandasinthewildareprobablythesameorlower.Thereareseveralreasonsforthelowbirthrate.Themainreasonisthatmalepandascanmakelovewithfemalesinaveryshortse

6、ason，onlyafewdaysayear.Whentheydohavebabies,femalesoftenproducetwopandas,butthemotherisusuallynotabletocareforbothofthem.Thenew－bornpandasweighonlyafewgramseach.Theyaretooweaktolivewithoutspecialcare.Inthezoo,scientistscanhelpthemotherscarefortheyoungpandas，butthos

7、elivinginthewilddonotgetenoughhelp.Itisverydifficultformotherpandastobringuptheiryoungpandas.Conditionsforthegiantpandashavebeenworseinrecentyears.PandasinChinacontinuetoreduceinnumber.Weknowpandasliveonbamboos.Butsometimesallthebamboosinoneareadie.Thepandasthereha

8、venothingtoeatanddieofhunger.GiantpandasnowliveinthirteenseparateprotectedareasinChina.SeveralyearsagotheChinesegovernmentandtheInternationalWild