1.Known as Newbery Metal, the award got started back in 1921, 1 Frederic Melcher suggested the American library associationset up an annual award for the best new children's book.
2.In ancient China lived an artist 2 paintings were almost a lifelike.
3.They said some cells 3 help process light had worsened in old people。
4.The researchers analyzed blood samples from one 105 dogs and created a chart to show different rates at 4 humans and dogs age.
5.Many westerners 5 come to China cook much less than in their own countries when she realized how cheap it can be to eat out.
6.Seventy years later, men 6 had fought on D-Day gathered on both sides of English channel , 6 people were coming together for memorial ceremonies.
7.Firstly, compared with cars 7 are powered by gas bicycles can do good to saving energy and reducing the air pollution.
8.The little robot-mutt, 8 had never been held so tightly in all its existence, squeaked high and rapid squeaks--happy squeaks.
9.China first had to put a satellite in orbit above the moon in a spot 9 it could send signals to the spacecraft and to earth.
10.To honor Xishi, the people 10 lived in Suzhou made wontons the official food to celebrate the the festival.
11.Her work took her to Zaire and then to Rwanda, 11 she founded the Karisoke Research Center.
12.Apart from ammonia farming, pollution is actually decreasing globally-- except for cities, 12 it's on the rise.
13.Along both sides of the path were growing trees, 13 leaves made soft sound as the rain-drops fell.
14.Chinese researchers for years have been working to boost the population of the animals, 14 reproduce rarely in the wild and rely on a diet of bamboo in the mountains of southwestern China.
15.But feeding mice the diet only at nighttime, 15 mice are most active , extended life by 35 percent.
16.The prices range from very cheap to high end, 16 guarantees their popularity in China.
参考答案：
1.when 2.whose 3.which/that 4.which 5.who/that 6.who/that ; where 7.which 8.which 9.where 10.who 11.where 12.where 13.whose 14.which 15.when 16.which
答案解析：
1.应填when。本句的主要结构为：theaward got started back in 1921，后面为定语从句，先行词为1921，定语从句中缺少时间状语，因此应填when。
句意：该奖项被称为纽伯瑞金属奖，始于1921年，当时弗雷德里克·梅尔彻建议美国图书馆协会设立一个年度最佳儿童新书奖。
2.应填whose。本句的主句为In ancient China lived an artist，后面为定语从句，先行词为artist，定语从句中缺少paintings的定语，因此应填whose。
句意：.在中国古代有一位画家，画得几乎栩栩如生。
3.应填which/that。本句的主要结构为they said＋宾语从句，宾语从句中的主要结构为some cells had worsened，cells为定语从句先行词（为事物），从句中缺少主语，因此应填which/that。
句意：他们说，老年人体内一些帮助处理光线的细胞已经恶化。
4.应填which。本句主句为The researchers analyzed blood samples from one 105 dogs and created a chart，后面to show different rates为目的状语，rates后为介词＋关系代词的定语从句，rates为先行词（为事物），因此应填which。
句意： 研究人员分析了105只狗的血液样本，并制作了一张图表来显示人类和狗的不同衰老速度。
5.应填who/that。本句的主要结构为：Many westerners cook much less than in their own countries，其中 come to China为定语从句，先行词为many westerners，并且从句中缺少主要，因此应填who/that。
句意：当她意识到在外面吃饭是多么便宜时，许多来中国的西方人比在他们自己的国家做饭要少得多。
6.应填who/that；where。本句的主要结构为：men gathered on both sides of English channel， had fought on D-Day为定语从句，先行词为men，从句中缺少主语，因此第一个空格应填who/that。English channel之后为定语从句，先行词为both sides of English channel，从句中缺少地点状语，因此第二个空格应填where。
句意：70年后，参加诺曼底登陆的士兵们聚集在英吉利海峡两岸，在这里人们聚集在一起举行纪念仪式。
7.应填which/that。本句的主要结构为：bicycles can do good to saving energy and reducing the air pollution，前面compared with cars后为以cars为先行词的定语从句，定语从句中缺少主语，因此应填which/that。
句意：首先，与以汽油为动力的汽车相比，自行车有利于节约能源和减少空气污染。
8.应填which。本句的主要结构为：The little robot-mutt squeaked high and rapid squeaks--happy squeaks.其中 had never been held so tightly in all its existence为非限制性定语从句，先行词为The little robot-mutt，因此应填which。
句意：这只小机器狗从来没有被抱得这么紧过，它发出了又高又快的吱吱声——快乐的吱吱声。
9.应填where。本句的主要结构为：China first had to put a satellite in orbit above the moon in a spot。其后的 it could send signals to the spacecraft and to earth.为定语从句，先行词为spot，定语从句中缺少地点状语，因此应填where。
句意： 中国首先必须将一颗卫星送入月球轨道，在那里它可以向宇宙飞船和地球发送信号。
10.应填who。本句的主要结构为：the people lived in Suzhou made wontons the official food to celebrate the the festival.其中 lived in Suzhou为定语从句，先行词为the people，定语从句中缺少主语，因此应填who。
句意： 为了纪念西施，苏州的人们把馄饨作为庆祝这个节日的官方食品。
11.应填where。本句的主句为Her work took her to Zaire and then to Rwanda，其后为定语从句，先行词为Rwanda，定语从句中缺少地点状语，因此应填where。
句意：她的工作将她带到了扎伊尔，然后去了卢旺达，在那里她建立了卡里索克研究中心。
12.应填where。本句的主句为：pollution is actually decreasing globally。其后的 it's on the rise.为定语从句，先行词为cities，定语从句中缺少地点状语，因此应填where。
句意：除了氨农业，全球范围内的污染实际上正在减少——除了污染正在上升的城市。
13.应填whose。本句的主要结构为：Along both sides of the path were growing trees，其后 leaves made soft sound为定语从句，先行词为growing trees，定语从句中缺少定语，因此应填whose。
句意：小路两旁长着树，雨点落下时树叶发出轻柔的声音。
14.应填which。本句的主句为Chinese researchers for years have been working to boost the population of the animals，其后reproduce rarely in the wild and rely on a diet of bamboo in the mountains of southwestern China.为非限制性定语从句，先行词为animals，定语从句中缺少主语，因此应填which。
句意：中国研究人员多年来一直致力于增加大熊猫的数量，大熊猫很少在野外繁殖，主要以中国西南部山区的竹子为食。
15.应填when。本句主要结构为：feeding mice the diet only at nighttime extended life by 35 percent.其中 mice are most active为定语从句，先行词为nighttime，定语从句中缺少时间状语，因此应填when。
句意：但只在夜间给老鼠喂食，老鼠最活跃，寿命延长了35%。
16.应填which。本句的主要结构为：The prices range from very cheap to high end，其后为非限制性定语从句，先行词为前面整个句子，因此应填which。
句意：价格范围从非常便宜到高端，这保证了它们在中国的受欢迎程度。
