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1、Howmuchdoyouknowaboutthebirdworld閱讀理解答案 Howmuchdoyouknowaboutthebirdworld Birdsusethreegaits:walking,runningandhopping． Inwalking,theleftandtherightfeetmoveinturn(輪流)．Eachfootisonthegroundformorethanhalfthetime,sotherearemoretimeswhenbothfeetareontheground．
2、Inrunning,eachfootisonthegroundforlessthanhalfthetime,andtherearemoretimeswhenbothfeetareofftheground．Inhopping,thefeetmovealmostatthesametime．Thismeansthatformuchofthetimebothfeetareofftheground． Middle-sizedandlargebirdswalkatlowspeedandeitherrunorhop17教育網(wǎng)：
3、higherspeed．Smallbirds,suchassparrowsandswallows,usuallydonotwalk,becausewalkingmaybetooslowforthem．Itseemsthatthemoretimeabirdspendsintrees,themorelikelyitistohop．Perhapsthereiswidespaceinatreebetweenonethinbranch(樹枝)andthenext,sowalkingisnotagoodchoice,while
4、oneachsmallbranchthereisenoughroomtosetbothfeetdownsidebyside,sohoppingseemstomakesense． 1．Howisthebirdmovingwhenbothfeetareonthegroundformorethatime A．Byflying． B．Byrunning． C．Bywalking． D．Byhopping． 2．Whichofthefollowingshowsabirdishopping 3．Whydotheb
5、irdsintreesusuallymovebyhopping A．Spacebetweenthetwobranchesiswide． B．Thebirdsintreesaresmallinsize． C．Thereislittleroomtosetthebirds’feeton． D．Branchesarehighintheairofftheground． 4．Whichofthefollowingusuallymovesbyhopping A．Aduck． B．Achicken． C．Asnak
6、e． D．Asparrow． 5．Whatdoestheunderlinedword“gaits”mean A．Directionsofflying． B．Speedsofmoving． C．Waysofmoving． D．Timesofstayingintrees． 答案解析： 答案：1-5．CBADC
