重难点词汇declinedklann.下降; （力量、健康、品格、权力、价值等的）衰退; 下倾; （人、生命等的）衰退期; vt.& vi.辞谢，谢绝（邀请等）; solution slun n.解决; 溶解; 溶液; 答案; shelter eltrn. 居所; 避难所; （无家可归者或受虐待者的）收容所; 遮蔽; vt. 掩蔽; 庇护; 保护; vi. 躲避; 避难; department dptmnt n.部门，部; 系，学部; 知识范围; 车间; Platform pltfrm n.台; 站台; 平台; 纲领; tough tfadj.坚强的，坚韧的，不屈不挠的; 艰苦的，困难的，难办的; 牢固的，强壮的; 粗暴的; n.粗暴的人; 暴徒，恶棍; antiquentikadj.古老的，古代的; 过时的，古董的; 古时制造的; 古风的; n.古玩，古董; 古风，古希腊和古罗马艺术风格; historical hstrkl adj.历史的，历史上的; 有关历史研究的; 有根据的; 基于史实的; object bdktn.物体; 目标; 宾语; 客体，对象; v.不同意；不赞成；反对,提出作为反对的理由；抗辩说; vi.不赞成，反对; 抱反感; vt.提出作反对的理由; core krn.中心，核心，精髓; 果心，果核; 地质学地核; 计 磁心; vt.去（果）核，挖去的果心; 提取岩芯（样品）; adj.最重要的；主要的；基本的,核心（ 信念、价值、原则等）,核心成员的；骨干的; gallery lrin.画廊，走廊; （教堂，议院等的）边座; 旁听席; 大批观众; settlement setlmntn.解决; 结算; 金钱或财产的转让（契约）; 沉淀; 定居点; accuracy kjrsin.精确（性），准确（性）; entertainment entrtenmnt n.娱乐，消遣; 招待，款待; 娱乐节目; amusement mjuzmnt n.娱乐; 游戏; 文娱活动; arrange rend v.安排; 筹备; 整理; 排列; 谱写; 长难句分析1. He realized that it was because there werent enough trees to protect them from the heat.He(主语) realized（谓语） that it was because there werent enough trees to protect them from the heat（宾语）.本句主干：He realized that it was because there werent trees.2. The solution was to plant trees so the animals could seek shelter during the daytime.The solution （主语）was（谓语） to plant trees（表语） so（引导并列句） the animals （主语）could seek（谓语） shelter（宾语） during the daytime（状语）.本句主干: the solution was to plant trees.3. His efforts have resulted in 1, 360 acres of naturally-grown land that has become home to many plants and animals.His efforts（主语） have resulted in（谓语） 1, 360 acres （宾语）of naturally-grown land （后置定语）that（引导定语从句） has become（系动词） home（表语） to many plants and animals（后置定语）.本句主干: His efforts have resulted in 1, 360 acres.4. They kept their collection at home until it got too big or until they died.They（主语）kept（谓语） their collection（宾语） at home（补语） until （引导时间状语从句）it （主语）got（系动词） too big（表语） or （引导并列句）until （引导时间状语从句）they （主语）died（谓语）.本句主干: They kept their collection at home.5. As well as looking at exhibits, visitors can play with computer simulations (模拟）and imagine themselves living at a different time in history or walking through a rainforest. As well as looking at exhibits（状语）, visitors（主语）can play（谓语） with computer simulations (模拟）（状语）and imagine（谓语） themselves（宾语） living at a different time in history（补语） or（引导并列补语） walking through a rainforest（补语）. 本句主干:visitors can play and imagine themselves .