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 【D1】________
in an oven or digested within the body.The cooking of meat and vegetables induce 【D2】________
chemical changes,making it more delicious;similarly the 1eavening action of 【D3】________
baking powder is a straightforward chemical change, as is the conversion of
starch into sweet sugars by digestion.
Cookery is a science requiring a knowledge of chemistry. 【D4】________
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 painstaking 【D5】________
research.
lt is therefore essential for trained cookers to understand 【D6】________
chemical science in order to appreciate the chemistry nature of foods 【D7】________
and the changes achieving on cooking.Homeworkers should also 【D8】________
know cleansing agents and textiles used in the home and how the latter 【D9】________
responds to the effects of heat,lightwater,and chemical cleansing agents. 【D10】________
【D1】
cooking 改为 cooked
主语 all foods 是 cook 的逻辑宾语， 因此应使用过去分词形式。
【D2】
induce 改为 induces
句子主语是 the cooking 而不是 meat and vegetables， 动词应使用单数。
【D3】
it 改为 them
因为其先行词为复数名词短语“the meat and vegetables”。
【D4】
√
【D5】
before 改为 after
根据文意可以推断这里要表达“之后” 的意思， 使用 before 不合逻辑。
【D6】
cookers 改为 cooks
cooker 厨房用具， cook 厨师。
【D7】
chemistry 改为 chemical
chemistry 是名词， 此处应用其形容词形式修饰名词。
【D8】
achieving 改为 achieved
此处要修饰 changes， 应使用 achieved， 因为 changes 不能主动“实现”。
【D9】
在 know 后加 about
know 认识， 知道， know about 表达“对……有所了解” 之意。
【D10】
responds 改为 respond
the latter 指代的是复数名词 textiles， 故谓语动词应使用复数。