Ques: Losing a baby tooth can be fun for a kid. You can put it under your pillow and look forward to finding some money there in the morning. And then you can watch your new permanent tooth grow in its place. But if a permanent tooth falls out, that's a problem. There isn't another one under the gum that can replace it. Unfortunately, this happens to some older people. And if permanent teeth fall out-or need to be pulled-an older person might need dentures. Dentures, known as false teeth, are a set of replacement teeth for any teeth that are missing. There are partial dentures, which take the place of only a few teeth and prevent the others from changing position. If all the teeth are gone, the person would need complete dentures, which replace every tooth in the mouth. Dentures can cause pains at first and take little time to get adjusted to. They also need special care. They should be brushed daily with a special denture brush and cleanser and soaked in denture solution when not in the mouth. Dentures are important for older folks because, without teeth, it's hard to smile, talk, and eat properly. But it can be a little _ if you see someone take out his or her dentures. It can also be strange to see someone, like a grandparent, without dentures in because he or she won't have any teeth. Try not to make fun of the person because this could cause hurt feelings. People usually lose their permanent teeth due to periodontal disease, or gum disease, which is caused by bacteria that attacks the gums. Diseased gums aren't strong and healthy, so teeth can get loose and fall out. Older people often have many cavities that have been filled over the years, and these fillings can weaken over time, leading to more tooth decay. Which of the following is NOT true according to the passage? A) Partial dentures can prevent the remaining teeth from changing position. B) Old people will find it hard to smile, talk, and eat properly without teeth. C) A person's teeth will possibly get loose if diseases strike his gums. D) It is hard for a person to wear dentures if all his teeth have fallen out.
Ans: D

Ques: The days of a pain-free visit to the dentist may not be far off. This is thanks to a little Japanese woman in a pink sweater, named Simroid. With a limited vocabulary, Simroid, the 160cm-tall robot is happy to feel your pain. Simroid is designed to be used at medical colleges. She has realistic looking skin, eyes, and a mouth fitted with replica teeth. Her chest also rises and falls as if she is breathing. Simroid releases a clear "ouch!" whenever a trainee dentist presses her teeth too hard with a tool. And she gives a reassuring "that's better" when the drill hits the right place. "We want to use the robots to train dentists to worry about whether patients are comfortable, and not just focus on medical techniques," said Naotake Shubui, a professor at Nippon Dental University inprefix = st1 /Japanwho helped develop Simroid. The robot was one of hundreds of cutting-edge devices on display at the world's biggest robot exhibition last week inJapan. As scientists improve the design of robots, they could soon be serving tea to office workers or directing shoppers. Today's robots look and act much like the humans who invented them. InJapan, robots can already be found working as home helps, office receptionists and security guards, as well as on the factory floor. There were more than 370,000 industrial robots in use inJapanin 2005, according to a report by Macquarie bank,40 percent of the world total, with 32 robots for every 1,000 workers. The economy ministry believes that the Japanese robot market will be worth more than $52 billion by 2025. Human work is being helped, and even replaced, by mechanical efficiency in almost every area, from golf-bag carriers to public toilet cleaners. But many scientists believe the age of the service robot is not far off. It will arrive once machines are capable of connecting with humans on an emotional level. Judging by theTokyoexhibition, _ has already begun. Simroid is designed to _ . A) aid dental trainees to focus on their medical techniques B) train dentists to be able to share patients' feelings C) help patients relax during dental surgery D) serve as the dentists' assistance during dental surgery
Ans: B

Ques: Harry is eighteen now. He studies in a middle school.His parents like him very much and hope he can become a famous man. So they often tell him to study hard and they do almost everything for him. They wakes him up at six in the morning, after breakfast his father takes him to school in a car and in the afternoon, as soon as the young man comes back, the supper is ready. Of course, he never washes his clothes or goes to buy anything in the shops. Once Harry's father was sent to London on business. He would stay there for half a year. Upon leaving, he told his wife to take good care of their son. The woman had to get up eatlier and did all that her husband did before. And two months later she was so tired that she was ill in bed. Now the young man got into trouble. He couldn't do any housework. He had to do as his mother told him. He didn't even know where to get on the bus! One day Harry's mother found his shoes were worn out and told him to buy a pair in the shop. But he didn't know how to choose The woman had a sigh and give him a shoe patten and told him to buy a pair of.shoes himself. With a policeman's help, Harry found a shop. The shopkeeper was friendly to him. The man brought a lot of shoes and asked him to choose. When he was trying on a pair, suddenly he remembered something and took them off. The man was surprised and asked, "What's the matter, young man?" "I'm sorry. I've left the shoe pattern at home!" Harry had to buy shoes himself because _ . A) his mother didn't know what kind he needed B) his mother was busy with the housework C) something was wrong with his mother D) his mother wanted her son to do something himself
Ans: C

Ques: Parents are not only looking for a unique name for their baby, but they also want a name that has a special meaning. American Indians usually have pretty interesting names. These names are given to them through various methods and usually by an elder. American Indians feel very strongly abouL naming their child, and it is almost treated like a ritual. In some American Indian cultures. they even hold a ceremony when they are to name a child Amcrican Indian children are usually named by an elder who could be eheir grandmother, grandfather. mother or father. The name given by the elder comes to them in many different forms such as charactcnstics of the person, dreams that the elder may have. or the name of a family member who has died It is also true that some Amerlcan Indians arc named after some sort of animal while others are named after nature Some tribes name their children after events that happen before thiir birth. Also in different tribes. two of the American Indians in the same tribe can't share the same name Once the person with the name has died. then the name may be used again. It is said that Amcrican Indians believe that they shoutd not address the baby by the name that they are given because if the name is too well-known. the child or baby may be called back to the spirit world; this is what causes many American Indians to be given nicknames . Many Amcrican Indians arc more commonly known by their nicknames instead of their names given at birth What doCS the text mainly talk about? A) Ongins of American Indians' names B) Hisrory of American Indians' names C) Importance of American Indians' names. D) Customs in American Indians' names.
Ans:
D