Binoculars(双筒望远镜)are not only used for wildlife observation, but are essenti

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问题 Binoculars(双筒望远镜)are not only used for wildlife observation, but are essential in certain sports, particularly in hunting. A hunter can climb in a tree and observe the woods and fields from afar, while a quality set of binoculars helps to spot wildlife with ease. Since the binoculars are being used outdoors, it is sensible to【C1】______a waterproof set: hunters will often find themselves out in the snow during hunting season. While the snow makes for【C2】______tracking of wildlife, if the binoculars fall into the snow, the【C3】______to moisture can result in significant damage.
Binoculars range in cost【C4】______from $ 50 to $ 1 000 depending upon the binoculars’ features. Roof prism(屋脊棱镜)binoculars are of extreme quality and are【C5】______for hunting or other outdoor ventures. While they tend to cost more than other brands of binoculars, they provide a hunter a crystal clear viewing field. A magnification of 10 x 50 is【C6】______if the binoculars are being used for hunting, while in the case of bird watching, a lower magnification may meet the need.
Hunters will also consider the field of view offered by the binoculars they decide to buy: the field of view will【C7】______how much of the actual landscape is visible. Finally, hunters that wear eyeglasses will need to take such a fact into【C8】______when buying binoculars: the type of binoculars purchased can【C9】______how well the hunter can see objects through the viewing【C10】______.
A)affect F)exposure K)persuaded
B)appliance G)fantastic L)purchase
C)consideration H)ideal M)recommended
D)determine I)influence N)roughly
E)distinguished J)instrument O)specifically [br] 【C6】

选项

答案 M

解析动词辨析题。分析句子结构可知，空格处与is构成系表结构或被动语态，应填入形容词或过去分词。while引导句子表示意义的对比，后半句提到，如果用于观察鸟类，放大倍率稍低的即可满足需要，可推断出上半句意思为：如果双筒望远镜用于狩猎，则“推荐”使用放大倍率为10×50的。空格处意义应和meet the need相关，故recommended符合句意。

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