高中英语学习材料(灿若寒星*制作整理)课时精练:Unit4Usinglanguage基础练习一、用所给词的适当形式填空1.Theinventionofpaperisagreat(contribute)tohumancivilization
2.Theysellawiderangeof(electricity)appliances—washingmachines,dishwashersandsoon
Wastewaterfromthefactoryisthemaincauseofthe____(pollute).4
Therehasbeenserious(disagree)betweenthetwopoliticalpartiesoverthisquestion
5.Plant(grow)ismostnoticeableinspringandearlysummer
6.Therearemany(educate)whoareagainstthisplan
Thecompany’s(commit)toprovidingqualityatareasonablepricehasbeenvitaltoitssuccess
It’sthebestresultthatcouldbeexpectedunderthe_____(circumstance).二、完形填空Globalwarmingischangingthemigration(迁徙)patternsofmanybirds,alteringflightpathsthathaveremainedunchangedforgenerationsandthatwerefirmlyanchored(稳固;固定)intheirgenes,scientists__1__
“WarminginEuropehaschanged_2__the