Inmanyplacesontheearththerearefourseasons—spring,summer,autumnandwinter.Whydotheseasonschange?Theearthturnsaroundanditgoesaroundthesunatthesametime.Buttheearthisnotstraight.Ithasanangle(角)of23degrees,soonlyasmallpartoftheearthcangetalotofheatfromthesunalltheyearround.Whenthesunisneartothesouthpartoftheearth,itissummerinthesouthanditiswinterinthenorth.Whenthesunisneartothenorthpartoftheearth,itissummerinthenorthanditiswinterinthesouth.

Butnotallpartsoftheearthhavefourseasons.Someplaceshaveonlyoneortwo.Forexample,inthetropicalrainforest(热带雨林)neartheEquator(赤道),itisalwayshotandwet.Thereisonlyoneseason.TherearetwoseasonsintheArcticandAntarcticregions(北极和南极地区).Insummer,thesunneversetsandthereisnonight.Inwinterwecan'tseethesun,evenatnoon.Itisnightalmostallthetime.Inthedesert,therearetwoseasons,too—ashortrainyseasonandalongdryseason.

根据短文内容判断正(T)误(F)。

ManycountriesneartheEquatorhavethesameweatherallthetime.

A

T

B

F

IntheArcticregionitisverycoldalltheyearround,sothereisonlyoneseason—winter.

A

T

B

F

WhenitissummerinBeijing,itiswinterinAustralia.

A

T

B

F

Wehavedifferentseasonsbecausetheearthturnsaround.

A

T

B

F

Differentplacesontheearthgetdifferentheatfromthesun.

A

T

B

F