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XX英语四级考试阅读理解练习试题xx英语四级考试阅读理解练习试题 英语四级就要到来了,不知道同学们复习工作做得如何了呢,下面是网为大家的xx英语四级阅读理解练习,欢迎参考~ task1 Human beingshave usedtools fora verylong time.In someparts of the worldyou canstill findtools thatpeople usedmore thantwo millionyears ago.They madethese toolsby hittingone stoneagainst another.In thisway,they brokeoff piecesfrom one ofthestones.These chipsof stonewere usuallysharp onone side.People usedthem forcutting meatand skinfrom deadanimals,and alsofor makingother toolsout ofwood. Human beingsneeded touse toolsbecause theydid nothave sharpteeth likeother meateating animals,such aslions andtigers.Tools helpedpeople toget foodmore easily.Working withtools alsohelped todevelop humanin___igence.The humanbrain grewbigger,and humanbeings beganto inventmore andmore toolsand machines.The stonechip wasoneofthe firsttools thatpeople used,and perhapsit isthe mostimportant.Some scientistssay thatit wast...。