Unit 5 Water is life 单元语篇阅读20篇-（含答案解析）-2025年七年级英语下册重点题型精准练 沪教版2025.docx

2025年

2025年

Unit5Waterislife单元语篇阅读20篇--2024-2025学年七年级英语下册重点题型精准练沪教版2024

一、阅读理解

Hi,youngscientists!Areyoureadyforsomefunwithscience?Doingscienceexperimentsissointerestingandithelpsusquestionwhatwelearn,thinkdeeply,andcreatenewideas.Hereisaneasyandfunexperimentaboutairpressure(压力)thatyoucandoathomeorschool.Let’shaveatry!

Whatdoweneed?

①aglass

②apieceofcardboard(硬纸板)

③somecleanwater

Howcanwedoit?

StepOne:Fillaglasswithwater.

StepTwo:Putapieceofcardboardovertheglass.

StepThree:Turntheglassoverasquicklyaspossible.

StepFour:Holdthecardboardforafewseconds.

StepFive:Remove(移走)yourhandfromtheunderneathoftheglass.

Whatwillhappen?

Theglassofwaterisupsidedown,butthewaterstaysintheglass.

Whydoesthishappen?

Thisisbecauseairpressurepushesthecardboardontotheglass.Thereismoreairoutsidetheglassthaninside,sothereismoreairpressureoutsidethaninside.

1．Howmanykindsofthingsdoyouneedtodothisexperiment?

A．Two. B．Three. C．Four. D．Five.

2．Whatisthesecondstepoftheexperiment?

A．Puttingapieceofcardboardovertheglass.

B．Turningtheglassoverasquicklyaspossible.

C．Holdingthecardboardforawhile.

D．Removingyourhandfromtheunderneathoftheglass.

3．Whatmakesthepieceofcardboardontotheglass?

A．Thehand. B．Airpressure. C．Clearwater. D．Theglass.

4．Whatisthepurposeofthetext?

A．Tohelpstudentsdevelopinterestinscience.

B．Toletstudentsknowmoreaboutwaterfacts.

C．Totalkabouttheimportanceofsavingwater.

D．Tocallonpeopletotakeactiontoprotectwater.

WateristhemostimportantresourceforalllivingbeingsonEarth.Itisrightlycalledthe“elixir(灵丹妙药)oflife”,asnolifecanlivewithoutit.Althoughnearly70%oftheEarth’ssurfaceiscoveredwithwater,onlyasmallpartisfreshandfitfordrinking.Thismakesitessentialtosavewateranduseitwis