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Chemistry is the study of the behavior and composition of matter. All foods are made up of chemical substance which undergoes
Chemistry is the study of the behavior and composition of matter. All foods are made up of chemical substance which undergoes
admin
2013-06-12
18
问题
Chemistry is the study of the behavior and
composition of matter. All foods are made up of
chemical substance which undergoes chemical
changes when cooking in an oven or digested 【1】______
within the body. The cooking of meat and
vegetables induce chemical changes, making 【2】______
it more delicious; similarly the leavening action of【3】______
baking powder is a straightforward chemical change,
as is the conversion of starch into sweet sugars
by digestion.
Cookery is a science requiring for knowledge 【4】______
of chemistry. This is evident from the variety of
cooking products and food additives available
as cooking oils, fats, colorings, sweeteners,
tenderizers, flavorings, screaming agents, preservatives,
etc. Each is carefully prepared before 【5】______
painstaking research.
It is therefore essential for trained cookers to 【6】______
understand chemical science in order to appreciate
the chemistry nature of foods and the changes 【7】______
achieving on cooking. Homeworkers should also 【8】______
know cleansing agents and textiles used in the 【9】______
home and how the latter responds to the effects 【10】______
of heat, light, water, and chemical cleansing agents.
【M8】
选项
答案
将achieving改为achieved。
解析
achieve和被修饰的名词changes是逻辑上的动宾关系,故应使用过去分词形式。例如:The only liberty I mean,is a liberty connected with order,that not only exists along with order and virtue,but which cannot exist at all without them.我说的自由只有一种,即与秩序相联系的自由。这种自由不仅同秩序和道德并存,而且没有后二者,前者就无法存在。Girls engaged write sonnets from the Portuguese-married women never.订了婚的姑娘会写优美的爱情诗,可已婚的妇女从来不。
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专业英语八级
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