Bad teeth can be painful - and worse. They can even be deadly. Infections of the gums and the teeth can cause bacteria to go into the blood system. Those bacteria can increase the chance of a heart at 题目和参考答案——青夏教育精英家教网—

题目内容

Experts at the National Institutes of Health say good dental care starts at birth. Breast milk, they say, is the best food for the healthy development of teeth. Breast milk can help slow the growth of bacteria and acid production in the mouth.

But dentists say a baby's gums and early teeth should be cleaned after each feeding. Use a cloth with a little warm water. Do the same if a baby is fed with a bottle. Experts say if you decide to put your baby to sleep with a bottle, only give the child water.

When baby teeth begin to appear, you can clean them with a wet toothbrush. Dentists say it is important to find soft toothbrushes made especially for babies and to use them very gently.

The use of fluoride (氟化物）to protect teeth is common in many parts of the world. For example, it is often added to drinking water supplies. The fluoride mixes with enamel (法琅质)， the hard surface on teeth, to help prevent holes from forming.

31.According to the passage, bad teeth can be ____________.

A.painful B. deadly C.preventive D.incurable

32.The writer uses the boy's death as an example to show that _______?

A. not only adults but the young may suffer from teeth problem

B. babies with bad teeth can easily die

C. the doctors should be responsible for the case

D. the boy was not fed with his breast milk

33. What's the main idea of paragraph 4 and 5?

A. How to develop babies' teeth. B. Why to protect babies' teeth

C. How to keep babies' teeth clean D. Why to keep babies' teeth clean

34. The passage tells us that _______.

A. Enamel is most widely used to protect teeth in the world

B. Bad teeth may affect the health of adults and the young

C. Breast milk can cure babies' bad teeth

D. Babies' teeth should be brushed once per day

35.Which of the following can be used as the title of the passage?

A. Concerns for Healthy Teeth of the Young B. Importance of Healthy Teeth of All

C. Causes of Teeth Problem D. Solutions to Teeth Problem

【答案】

【解析】文章谈论了牙科问题的严重性，已经引起了人们的广泛担忧。

D 细节题。根据第一段2,3行the teeth can cause bacteria (细菌）to go into the blood system. Those bacteria can increase the chance of a heart attack and worsen the effects of other diseases.可知牙科疾病会导致很多严重的疾病，甚至会导致死亡，故D正确、

A 推理题。举这个例子是为了说明不仅仅成年人会受到牙科问题的干扰而且年轻人也会受影响。故A正确。

C 段落大意题。根据这两段中提及的清洗儿童牙齿的方法可知是关于如何保持儿童牙齿清洁。故C正确。

B 主旨大意题。文章涉及的是牙科问题可能会影响人们的健康，无论的成年人还是儿童。

A 主旨大意题。文章谈论了牙科问题的严重性，已经引起了人们的广泛担忧。

练习册系列答案

赢在起跑线快乐暑假河北少年儿童出版社系列答案

创新成功学习快乐暑假云南科技出版社系列答案

相关题目

Every person needs water and a diet of __36_ foods. These foods should contain some fat, some fiber, a little salt and so on.

People need energy 37 . They eat different kinds of food which change into _38___. The energy is __39__ in calories. Even when you 40 , you are using energy – about 65 calories an hour. 41__ you are at school, or walking home, your body is burning up 100 calories an hour. When playing football or basketball, you 42 be using 400 calories an hour. On Sports Day, during the relay race, you will use most of all, 43 as much as 650 calories an hour.

The Chinese diet is considered to be the healthiest in the world. It contains a lot of fruit and green vegetables. It is 44 in fiber and low in sugar and fat. The Chinese eat less sugar than many other countries in the world. That is 45 lots of people in China have healthy white teeth.

People in the Western world do not eat 46 healthy foods. They eat 47 fat and sugar 48 don’t take enough 49 . Because of this, they 50 weight very easily. Their diet contains a lot of fat in the 51 of potato crisps, potato chips, __52_, cream and chocolate. They eat a lot of sugar which exist in cakes, soft drinks, 53 and so on. The result is that many of them become fat. 54 some have bad teeth. In some parts of Britain, one person in ten, 55 the age of thirty, has no teeth left.

36.A. healthy B. health C. cheap D. expensive

37. A. for life B. live C. to live with D. for a living

38. A. fat B. energy C. power D. strength

39. A. measuring B. taken C. measured D. measure

40. A. are asleep B. fall asleep C. go to sleep D. go to bed

41. A. While B. During C. As D. If

42. A. must B. can C. need D. might

43. A. surely B. usually C. perhaps D. hardly

44. A. rich B. poor C. good C. bad

45. A. how B. why C. what D. that

46. A. so B. such C. quite D. very

47. A. much too B. many too C. too many D. too much

48. A. and B. but C. so D. because

49. A. exercises B. food C. work D. exercise

50. A. put on B. gain on C. get on D. put up

51. A. type B. form C. kind D. sort

52. A. vegetables B. tomato C. butter D. rice

53. A. sweets B. sweet C. candy bar D. sweet thing

54. A. But B. Or C. And D. So

55. A. at B. for C. with D. by

完形填空（共15小题；每小题2分，满分30分）
阅读下面短文，掌握其大意，然后从21-35各题所给的四个选项中选出一个最佳答案。
Every person needs water and a diet of healthy foods. These foods should contain some fat, some fiber, a little salt and so on.
People need energy 21 . They eat different kinds of food which change into energy. The energy is 22 in calories(卡). Even when you 23, you are using energy – about 65 calories an hour. 24 you are at school, or walking home, your body is burning up 100 calories an hour. When playing football or basketball, you 25 be using 400 calories an hour. On Sports Day, during the relay race, you will use most of all, 26 as much as 650 calories an hour.
The Chinese diet is considered to be the healthiest in the world. It contains a lot of fruit and green vegetables. It is 27 in fiber and low in sugar and fat. The Chinese eat less sugar than many other countries in the world. That is 28 lots of people in China have healthy white teeth.
People in the Western world do not eat such healthy foods. They eat 29 fat and sugar and don’t take enough 30 . Because of this, they 31 weight very easily. Their diet contains a lot of 32 in the form of potato crisps, potato chips, butter, cream and chocolate. They eat a lot of sugar which exist in cakes, soft drinks, 33 and so on. The result is that many of them become fat. 34 some have bad teeth. In some parts of Britain, one person in ten, 35 the age of thirty, has no teeth left.
21. A. to sleep    B. to live           C. to eat           D .to walk
22. A. measuring      B. taken            C. measured   D. measure
23. A. are asleep       B. have a dream        C. have a rest      D. go to bed
24. A. While            B. During          C. As               D. If
25. A. must                   B. should         C. need                D. might
26. A. surely            B. ever                  C. perhaps     D. seldom
27. A. rich                    B. poor                  C. good               D. bad
28. A. how                   B. why                   C. what                D. that
29. A. much too            B. many too            C. too many              D. too much
30. A. activities             B. food               C. work                    D. exercise
31. A. put on         B. gain on              C. get on                   D. put up
32. A. sugar                  B.fat                      C. salt           D. fiber
33. A. sweets         B. vegetables   C. meat                D. potato
34. A. But                    B. Or                     C. And               D. As
35. A. during         B. for                     C. with                     D. by

Bad teeth can be painful — and worse. They can even be deadly. Infections (感染）of the gums (牙龈）and the teeth can cause bacteria (细菌）to go into the blood system. Those bacteria can increase the chance of a heart attack and worsen the effects of other diseases. And adults are not the only ones at risk. For example, in 2007, doctors in the Washington area said a boy died when a tooth infection spread to his brain. They said it might have been prevented had he received the dental care (牙齿保健）he needed. He was twelve years old.
Experts at the National Institutes of Health say good dental care starts at birth. Breast milk, they say, is the best food for the healthy development of teeth. Breast milk can help slow the growth of bacteria and acid production in the mouth.
But dentists say a baby's gums and early teeth should be cleaned after each feeding. Use a cloth with a little warm water. Do the same if a baby is fed with a bottle. Experts say if you decide to put your baby to sleep with a bottle, only give the child water.
When baby teeth begin to appear, you can clean them with a wet toothbrush. Dentists say it is important to find soft toothbrushes made especially for babies and to use them very gently.
The use of fluoride (氟化物）to protect teeth is common in many parts of the world. For example, it is often added to drinking water supplies. The fluoride mixes with enamel (法琅质)， the hard surface on teeth, to help prevent holes from forming.
31.According to the passage, bad teeth can be ____________.
A.painful B. deadly C.preventive D.incurable
32.The writer uses the boy's death as an example to show that   _______?
A. not only adults but the young may suffer from teeth problem
B. babies with bad teeth can easily die
C. the doctors should be responsible for the case
D. the boy was not fed with his breast milk
33. What's the main idea of paragraph 4 and 5?
A. How to develop babies' teeth.           B. Why to protect babies' teeth
C. How to keep babies' teeth clean         D. Why to keep babies' teeth clean
34. The passage tells us that _______.
A. Enamel is most widely used to protect teeth in the world
B. Bad teeth may affect the health of adults and the young
C. Breast milk can cure babies' bad teeth
D. Babies' teeth should be brushed once per day
35.Which of the following can be used as the title of the passage?
A. Concerns for Healthy Teeth of the Young B. Importance of Healthy Teeth of All
C. Causes of Teeth Problem               D. Solutions to Teeth Problem

Bad teeth can be painful -- and worse. They can even be deadly. Infections (感染) of the gums (牙龈) and the teeth can cause bacteria (细菌) to go into the blood system. Those bacteria can increase the chance of a heart attack and worsen the effects of other diseases. And adults are not the only ones at risk.
For example, in 2007, doctors in the Washington area said a boy died when a tooth infection spread to his brain. They said it might have been prevented had he received the dental care (牙齿保健) he needed. He was twelve years old.
Experts at the National Institutes of Health say good dental care starts at birth. Breast milk, they say, is the best food for the healthy development of teeth. Breast milk can help slow the growth of bacteria and acid production in the mouth.
But dentists say a baby's gums and early teeth should be cleaned after each feeding. Use a cloth with a little warm water. Do the same if a baby is fed with a bottle. Experts say if you decide to put your baby to sleep with a bottle, only give the child water.
When baby teeth begin to appear, you can clean them with a wet toothbrush. Dentists say it is important to find soft toothbrushes made especially for babies and to use them very gently.
The use of fluoride (氟化物) to protect teeth is common in many parts of the world. For example, it is often added to drinking water supplies. The fluoride mixes with enamel (珐琅质) , the hard surface on teeth, to help prevent holes from forming.
【小题1】Which of the following can be used as the title of the passage?

A．Concerns for Healthy Teeth of the Young

B．Causes of Teeth Problem

C．Importance of Healthy Teeth of All

D．Solutions to Teeth Problem

【小题2】What's the main idea of paragraph 4 and 5?

A．How to develop babies' teeth.	B．How to keep babies' teeth clean
C．Why to protect babies' teeth	D．Why to keep babies' teeth clean

【小题3】The passage indicates that ______.

A．Enamel is most widely used to protect teeth in the world

B．Breast milk can cure babies' bad teeth

C．Bad teeth may affect the health of adults and the young

D．Babies' teeth should be brushed once per day

【小题4】The writer uses the boy's death as an example to show that ______.

A．not only adults but the young may suffer from teeth problem

B．the doctors should be responsible for the case

C．babies with bad teeth can easily die

D．the boy was not fed with his breast milk

For example, in 2007, doctors in the Washington area said a boy died when a tooth infection spread to his brain. They said it might have been prevented had he received the dental care (牙齿保健) he needed. He was twelve years old.

When baby teeth begin to appear, you can clean them with a wet toothbrush. Dentists say it is important to find soft toothbrushes made especially for babies and to use them very gently.

The use of fluoride (氟化物) to protect teeth is common in many parts of the world. For example, it is often added to drinking water supplies. The fluoride mixes with enamel (珐琅质) , the hard surface on teeth, to help prevent holes from forming.

1.Which of the following can be used as the title of the passage?

A．Concerns for Healthy Teeth of the Young

B．Causes of Teeth Problem

C．Importance of Healthy Teeth of All

D．Solutions to Teeth Problem

2.What's the main idea of paragraph 4 and 5?

A．How to develop babies' teeth. B．How to keep babies' teeth clean

C．Why to protect babies' teeth D．Why to keep babies' teeth clean

3.The passage indicates that ______.