一：Crocodileslaytheireggsandleavethemunderleavesorsand,andthebabycrocodilesonlylive

inhotplaces.TheyarefoundinIndia,Australia,AfricaandAmericawheretheyspendmostoftheirtimelyinginthemudortheriver.Thecrocodile'stailislongandstrong;itisusedwhentheanimalisswimming.It'salsogoodforfighting,becauseoneblowofitwillknockdownamanorevenabiganimalatonce.

Thecrocodilecanstayawayfromdangerunderitshardbonyplates(鳞片).Thesebonyplatescovermostofitsbody.Thecrocodilecanonlyseeinfrontofitself,becauseitcan'tturnitsheadfromsidetoside.

Aftereating,thecrocodilecan'tcleanitsownteethbecauseitcan'tmoveitstongueupanddown.Thecrocodilebirdwillfollowittoeatthefoodleftinthecrocodile'smouth.Thebirdhelpsthecrocodiletocleanitsteeth.

Withitshardandsharpteeththecrocodilecatchesitsfood-maybeafish,ananimalorevenanunluckyman,andthecrocodileholdshisfoodbelowthewateruntilhisfooddies.

二：MrandMrsMoorewereinvitedtoaChristmaspartyatahoteloneyear.They(41)theircaroutsideandwentin.MrMoorehadnevergotdrunk(醉)before,sohewas(42)nottodrinktoomuch,(43)hisfriendsaskedhimtodrinkmore(44).

Duringtheparty,MrsMoorefoundthatshehad(45)tobringherbag,sosheaskedherhusbandtogoouttothecarand(46)itforher.He(47)so,butonhiswaybacktothehotelgate,heheardacarhorn(喇叭)blowingnearhisowncar.Hethought(48)mightbeinneedofhelpandwentovertothecarwiththe(49).Hefoundasmallblackbearsittinginthedriving-seatandblowingthehorn.

WhenMrMoore(50)theparty,hetoldseveralpeopleaboutthebear,butofcoursetheydidnotbelievehimandthoughthewasdrunk.Whenhetookthemoutofthehotelto(51)thathisstorywas(52),hefoundthatthecarwiththe(53)inithadgone.Thereweresomany(54)aboutMrMoore’sblackbearduringthenextweekthatheatlastputanadvertisement(广告)inthenewspaper;“IfanyonesawablackbearblowingthehorninacaroutsidetheCenturyHotel(55)theeveningofChristmasDay,pleasetell…”

Towdayslater(56)MrsRichardscalledhimandsaidthatsheandherhusbandhadlefttheirpet(宠物)bearintheircaroutsidetheCenturyHotelforafewminutesthatevening,andth