C Most people are born with two sets of teeth. They use baby teeth to eat as children. As they become adults, the baby teeth are replaced with permanent teeth. By the age of 65, 30 percent of people worldwide h
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解析 1.dentist 考查名词。句意:我想成为一名牙医,帮助有牙齿问题的人。根据句意和句子结构可知,空前为冠词a,因此空格处应该为名词,且为单数形式,再根据空后的 "help people with teeth problems" 和首字母d提示,可联想到可数名词dentist,意为,牙医。故答案为:dentist。
Kazoo has a simple structure. The flute is big at one end and small at the other. When playing, you should hold the big head in your mouth without blowing, but hum a tune with your throat. The vibration of the...
the native peoples of Siberia 西伯利亚本土民族 牛津词典 the life of the common people 普通人的生活 牛津词典 It was felt that the government was no longer in touch with the people. 人们觉得政府已脱离了民众。 牛津词典 a meeting with business people and bankers 与商界和银行界人士的会晤 牛津词典...
With all kinds of toothbrush and toothpaste ads everywhere, people have come to realize the importance of protecting teeth. "There is no decayed tooth(龋齿) for young children" has become the goal of all parents. Bad teeth may cause a lot of pain or even death. Infections of gums (牙龈)...
“He's got a lot of sisters, one of them here yesterday.” Scarlett flushed. One of those creatures Rhett consorted with, probably that Watling woman.And these Yankees thought she was another one.It was unendurable.Not even for Tara would she stay here another minute and be insulted.She...
(1)B.根据"Long ago,as people got older,there was something wrong with their teeth and it would be very painful.很久以前,随着年龄的增长,人们的牙齿出现了问题,这将是非常痛苦的",结合选项,可知很久以前,人们的牙齿出现了问题,为了避免牙痛,他们把牙齿拔掉了。故选:B。(2)F.根据"Later people learned...
解答 答案:1.A 细节理解题.根据第二段句子They are the African toothbrushes.People there are used to brushing their teeth with sticks.它们是非洲牙刷.人们刷牙用棍子.可知非洲人首先用棍子刷牙,故选A.2.D 细节理解题.根据第一、二段句子In the south of Africa,some people brush their teeth all day ...
I have a big meal at home with my parents and relatives. This isan important festival, so my mother was busy with preparing the dinner frommorning. She bought a lot of foods for the dinner. We ate the dinner at 5:30p.m.. The dinner was very delicious. I was so full. After dinner...