期中复习检测题（四）(含答案） 2024-2025学年外研版英语八年级下册.pdfVIP

初二英语期中复习卷（四）

一、阅读理解：

A

Thespringequinox(春分)happenseveryyearinMarch.Theequinoxisnotafullday.Itisa

specifictime.Itdependsonthepositionofthesun.Theequinoxhappenswhenthesuncrosses

theequator(赤道).Theequatorisanimaginaryline.ItisdrawnaroundthecenteroftheEarth.

ItdividesEarthintotwohalves,theNorthernandSouthernHemispheres(半球).

Thespringequinox2025happenedat5:01intheafternoon.Atthisexactmoment,the

NorthernandSouthernhemisphereswillreceiveanequal(相等的)amountofsunshine.

Equinoxeshappenonlytwiceayear.OneequinoxhappensinMarch.Theotherhappensin

September.Thisistheautumnalequinox.Itisalsoknownasthefallequinox.Itmarksthe

beginningoffallfortheNorthernHemisphere.

Onanequinox,thelengthofdayandnightareapproximately(近似)equal.Thismeansthe

equatorexperiencesabout12hoursofdaylight.Anditexperiencesabout12hoursofdarkness.

ThereasonanequinoxhappenshastodowithEarth’saxis.Theaxisisaninvisible(看不见

的)line.ItrunsfromtheNorthPoletotheSouthPole.Theplanetspins(旋转)aroundthisaxis.

Earthmakesonecompleteturnarounditeachday.ThatiswhyeverypartofEarth’ssurfacegets

bothdayandnight.

Earth’saxishasatilt(倾斜).That’swhydifferentplacesonEarthexperiencedifferent

amountsofdaylight.Butduringanequinox,thisisnotthecase.Theamountofdaylightand

darknessarenearlyequal.

1.Whichsentencecanexactlydescribetheequator?

A．Itmarksthebeginningofthespringseason.

B．Itdependsonthepositionofthesun.

C．ItdividesEarthintotwohalves,theNorthernandSouthernhemispheres.

D．Itwillhappenat11:33inthemorningEasternTime.