Scientists noted that people in both the Old Stone Age and the New Stone Age enjoyed very little alcohol or tobacco, probably none.__3__However, a change in food is one of the main differences between life in ancient times and that of today.

　　Stone Age people hunted wild animals for their meat, which had much less fat than domestic ones. They ate a lot of fresh wild vegetables and fruits. They did not have milk or any other dairy products, and they made very little use of grains. __4__ We eat six times more salt than our ancestors. We eat more sugar. We eat twice as much fat but only one third as much protein and much less vitamin C.

　　__5__But scientists say that we would be much healthier if we eat much the same way the ancient people did, cutting the amount of fatty, salty and sweet food.

　　A．Stone Age people lived a simple life.

　　B．But today, we enjoy eating a lot of these.

　　C．In that case, they would live much healthier.

　　D．Ancient people also got lots of physical exercise.

　　E．These new sicknesses were not known in ancient times.

　　F．People today probably don't want to live like our ancestors.

　　G．Modern people used to suffer from “diseases of civilization”．

　　答案　1.C　2.E　3.D　4.B　5.F

　　Ⅴ.书面表达

　　假如你是李华，是育英中学的学生。四月十四日玉树地震发生后，你和你同学度过了几个不眠之夜。请写一篇100词左右的资讯报道，介绍你们那几天的主要活动及感受。要点如下：

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