下载后可任意编辑 《》(通用本)3① Key to ExercisesI.1.A1.2.B3.C4.D5.AII.The girl was living in the woods with her grandmother.He was a scientist who collected birds. He was looking for a heron.It was love.2.3.4.Because the girl could show the man where the heron was.She know the forest well.5.6.The bird was living happily in the forest and was as much part of nature as sheherself .They had together watched the sun rise from the top of the tree. She could not tell itssecret and give its life away.② Key to ExercisesI.1.A1.2.B3.A4.C5.AII.Because they provide the body with heat and energy.Milk and hard cheese.2.3.Proteins are necessary for life. They can build and repair body tissues. They are animportant part of muscles, organs, skin and hair.Some nutrients provide fuel for energy, some build tissues and some help controldifferent processes of the body.4.5.If a person does not have enough iron, the person will get a disease called anemia.③ Key to ExercisesI.1.D2.C3.C4.C5.CII.1.历史上周期性地出现一些大的转折化。2.现在我们正处在一个变革的边将会彻底消逝。3.事实上, 21世纪将因为它所有的进步, 成为人类历史上最伟大的开创人们将在的胜利。④ Key to ExercisesI.1.A下载后可任意编辑2.B3.A4.BII.一百年前, 一位伟大的合。这项重要法令的颁布, 对于千百万灼烤于非正义残焰中的黑奴, 犹如带来希望之大灯塔, 恰似然而, 一百年后, 黑人依旧和种族卑视的枷锁之下。一百年后, 黑人依旧生活在物质繁荣翰海的贫困孤岛上。一百年后, 黑人依旧在来到这里, 要把这骇人听闻的情下载后可任意编辑 从某种意义上说, 我们来到国家的首都所有人承诺——不论白人还——都享有不可让渡的生存权、 自由权和追——一张盖着”资 ”的印戳被退回的支票。但然而, 今日而不信任正义的银行会破产。我们因此, 我们来我们来到这块圣地还为了提醒行事或服用渐进主义镇静剂的族隔离深谷, 踏上种族平等的阳踏上忽视这一情合理哀怨的酷1963年不假如国家依旧我行我素, 那些希望黑人只需出出人得到直至但法地...
