【题目】阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。
Eggs are great for breakfast and can【1】(cook) in different ways. One topic of debate, however, is why brown chicken eggs usually cost more than white ones. According to Sharman Hickman, the director of community outreach and education for Hickman's Family Farms, it's first important to know the reason【2】chickens have various egg colors.
The chicken breed(品种) and their genetics decide whether hens possess pigment genes, the natural chemical during the egg laying process that coats the egg and results【3】a colored shell. Hens who produce colored eggshells tend to be【4】(large) and require more feed and energy【5】(create) that painted layer. Since those breeds cost more to feed, their eggs【6】(be) more expensive.
Although eggs sometimes look and are priced【7】(different) , it's important to know the color of the eggshell is related to the breed of the hen, not the egg's nutrient content, flavor profile,【8】shell thickness, according to Malina Linkas Malkani, media spokesperson for the Academy of Nutrition and Dietetics. “【9】(choose) between brown and white eggs is a matter of personal【10】(prefer) ,” she says. Whatever you prefer, don't judge an egg by its shell color.
在线课程【答案】
【1】be cooked
【2】why
【3】in
【4】larger
【5】to create
【6】are
【7】differently
【8】or
【9】Choosing
【10】preference
【解析】
这是一篇说明文。鸡蛋是很好的早餐，可以用不同的方法烹饪。然而，引起争论的一个话题是为什么棕色鸡蛋通常比白色鸡蛋更贵。文章解释了鸡为什么会有各种颜色的蛋的原因。有人指出尽管鸡蛋有时看起来和价格不同，但蛋壳的颜色与母鸡的品种有关，不管你喜欢什么，不要根据蛋壳的颜色来判断一个鸡蛋。
【1】考查动词语态。本句中主语与谓语动词构成被动关系，且can后跟动词原形。故填be cooked。
【2】考查定语从句。此处为定语从句修饰先行词reason，且先行词在从句中做原因状语，用关系副词why。故填why。
【3】考查介词。根据短语result in表示“导致”。故填in。
【4】考查比较级。句意：生产彩色蛋壳的母鸡往往体型更大，需要更多的饲料和能量来制造彩色蛋壳。结合句意可知表示“更大”应用形容词比较级形式larger。故填larger。
【5】考查非谓语动词。分析句子结构可知create在句中应用非谓语动词形式，且此处表目的应用不定式。故填to create。
【6】考查动词时态语态。句意：由于这些品种的饲料成本更高，它们的蛋也更贵。根据上文Since those breeds cost more to feed可知为一般现在时，主语为eggs，故谓语动词用复数形式。故填are。
【7】考查副词。此处修饰上文动词price“给……定价”应用副词differently，表示“不同地”。故填differently。
【8】考查连词。句意：营养与饮食学院的媒体发言人Malina Linkas Malkani表示，虽然鸡蛋的外观和价格有时会有所不同，但要知道蛋壳的颜色与母鸡的品种有关，而不是鸡蛋的营养成分、风味成分或蛋壳的厚度。结合上下文语境可知此处表示选择应用连词or，表示“或者”。故填or。
【9】考查非谓语动词。分析句子结构可知本句中缺少主语，故应用动名词短语Choosing between brown and white eggs作主语。句首字母要大写。故填Choosing。
【10】考查名词。上文personal为形容词修饰名词，故应填名词preference，表示“喜好”。故填preference。