Unit7选词填空专练-2024-2025学年八年级英语下册重难点提优训练（人教版）.docx

20242025学年八年级英语下册重难点提优训练（人教版）

Unit7选词填空专练

（1）

用方框中所给单词的适当形式填空，使短文完整、通顺。

it,square,think,down,run,since,long,hot,activity,of

TheAmazonrainforestisinSouthAmerica.Itcoversabout7million1kilometers.

TheAmazonRiver2throughtherainforest.It’stheworld’ssecond3river.Climatechange(气候变化)andhuman4makeit“sick”.Actually,therainforestcanfix5.Butnow,itfeelstoo“tired”togetbetter.TheAmazonisoneoftheworld’swettestplaces.But62005,threedroughts(干旱)havehittherainforest.Thetreesdon’thaveenoughwatertogrow.What’sworse,theycaneasilycatchfirewhentheybeedry.Peoplecut7rainforesttreesmostlyforwood.Theyburntheforesttomakefarmland.Alltheseactivitieshavecausedabout17percent8therainforesttodisappearalready.

TheAmazonislikethelungs(肺)ofourplanet.Therichplantstheremakemorethan20percentoftheplanet’soxygen(氧气).IftheAmazon“dies”,theearthwillbeeeven9.Researchersare10ofbetterwaysofprotectiontosavetheAmazonrainforest.Hopewecansolvetheproblemsinthenearfuture.

（2）

用方框中所给单词的适当形式填空，使短文完整、通顺。

challenge,desert,during,before,hot,how,other,second,recent,amaze

Saharansilverants(银蚁)aretheworld’sfastestants.Unlikeotherlivingthingsinthe1,Saharansilverantsdon’tjusthideincoolplaceswhenitishot2theday.Forupto10minutesaday,theyrunoutoverthehotsandandtrytofindfood.Ifyou’veeverwalkedwithoutshoesonhotsand,youwillknowhowhotitcanbe.ButtheSaharaismuch3—thetemperaturecanbeashighas60℃.Itisreallyabig4fortheants.

ScientistsfromGermany5studiedtheseamazingants.Theirresearchhelpsusbetterunderstand6theantscanmovesofast.

Thesilverantshavesixlegs.Theymoveinaspecialwaysothattheywon’tdie.Whentheymove,theantsusethefr