Do you have good teeth? We brush our teeth to keep them clean and healthy. In fact, having good eating habits is also helpful for the health of our teeth!
Eating too many sweets is the worst thing you can do to your teeth. When you eat candies, for example, the bacteria (细菌) in your mouth will produce some acids. These acids can damage your teeth and the tooth problems would appear. You can try eating sugar-free things instead of sugary ones. Chewing (咀嚼) xylitol gum, for example, can help reduce the bacteria in your mouth.
More or less, eating leaves food debris on your teeth. If you chew more while eating, the friction between your mouth and tongue will help you to better clear out the food debris. People often chew more when they eat high-fiber (高纤维的) foods, such as cabbage. When they eat low-fiber foods, such as white bread, they chew fewer times. Therefore, it’s a good idea to eat more high-fiber foods.
You may think it’s okay to eat ice cubes (冰块) because they’re just water. ▲ These cracks (裂缝) can then weaken (弱化) your teeth. While it may feel good to break up ice cubes with your teeth, it’s better to let them melt in your drink.
All in all, in order to have a brighter smile, you should improve your eating habits as well as brush your teeth twice a day. Also remember to floss (用牙线洁牙) and make sure to visit your dentist often!
1. It’s a good idea to eat more high-fiber foods, such as________.| A．white bread | B．beef | C．cabbage | D．cubes |
| A．保护 | B．提升 | C．破坏 | D．摧毁 |
| A．So the ice cubes can make your teeth stronger. |
| B．And drinking water is good for your teeth. |
| C．Although water will weaken your teeth because of cracks |
| D．However, chewing ice can create tiny cracks in your teeth. |
| A．Eat Well for Your Teeth | B．Do More Exercise for Teeth |
| C．Have a Lovely Smile | D．Make Sure to Brush Teeth |
相似题推荐
【推荐1】Jack is 12 years old. He is a student. He likes hamburgers and ice-cream. He doesn’t want to eat vegetables or fruit. He is fat. His mother often says to him, “Jack, you are too heavy (重的). It’s not healthy.” But Jack says, “I’m fine, Mom. I want to eat my favorite hamburgers and ice-cream every day.”
Today is Sunday. Jack gets up at seven o’clock in the morning. Then he has breakfast at home. He has a hamburger for breakfast. Jack goes to Mr. Cool’s Clothes Store with his mother at 9:00 in the morning. He wants to buy new clothes, but he is not happy in the clothes store. Why? He finds a nice T-shirt. It’s a big size (尺码) T-shirt. But it’s too small for him. It doesn’t fit him. When he gets home, Jack says to his parents, “I don’t want to be fat! And I want to be healthy.” His father asks him to do sports. His mother asks him to eat healthy food. Jack nods (点头).
根据材料内容选择最佳答案。
1. What is Jack’s favorite food?
| A．Fish. | B．Rice. | C．Bread. | D．Hamburgers. |
| A．At six. | B．At seven. | C．At half past six. | D．At a quarter past seven. |
| A．His friend. | B．His father. | C．His mother. | D．His teacher. |
| A．适合 | B．试穿 | C．买入 | D．符合 |
| A．Because the T-shirt is too big. |
| B．Because the T-shirt is too old. |
| C．Because the T-shirt is too small for him. |
| D．Because his mother doesn’t buy the T-shirt for him. |
【推荐2】
(A) More than half the young people in China are nearsighted, according to a survey, which called for great efforts to control the condition. The survey found that eight of 10 senior middle school students were nearsighted, compared with 71.6 percent in junior middle school, 36 percent in primary school and 14 percent of 6-year-olds in kindergarten. | (B) According to experts, one of the best ways to make thankfulness a part of your life is to keep a diary. For example, before you go to bed every night, write down any positive experience you have during the day, no matter how small. Your mental health will gradually improve. |
(C) “It is in giving that we receive," It turns out that this is scientifically right. Studies have shown that putting the well-being of others before our own without expecting anything in return will give us a strong sense of satisfaction. | (D) Studies show volunteering reduces stress. Even if you have little time to offer, just the act of giving has been shown to improve your health, possibly by reducing your sense of pain. A new study found that people who said they would volunteer were less sensitive(敏感的) to an electric shock than those who refused. |
(E) Researchers found a clear link between breakfast habits and heart disease risk. Those who didn't eat in the morning were up to 87 percent more likely to cause heart trouble. They did a survey on 6,550 people over 40. Most (59 percent) ate breakfast every day, but 5.1 percent never did, 10.9 percent seldom did, and 25 percent would not eat for a few days. | (F) Now many children are getting fat. Some of them spend too much time watching TV. Others have to spend a lot of time studying. So they don’t have enough time to exercise. A report says that many middle school students spend about 10 hours a day sitting down. And many students like eating sweet food. That also makes them fatter. |
1. Match passages (A)—(F) with the two topics: ①Mental health; ②Physical health. Which is right?
| A．①—(D)(E)(F); ②—(A)(B)(C) | B．①—(B)(C); ②—(A)(D)(E)(F) |
| C．①—(B)(D); ②—(A)(B)(E)(F) | D．①—(B)(C)(D); ②—(A)(E)(F) |
| A．To explain why Chinese children have poor eyesight. |
| B．To show how serious Chinese children’s eyesight problems are. |
| C．To show how important eyesight is. |
| D．To call on children to watch less TV to protect their eyes. |
| A．How often do you eat breakfast? |
| B．When do you eat breakfast? |
| C．Do you have a good breakfast every day? |
| D．What do you eat for breakfast? |
| A．The young people should pay attention to their eyes. |
| B．Offering to help in an old people's home. |
| C．Giving away your old clothes to people in need. |
| D．Writing down the good things you did for others. |
| A．Children’s fatness is mainly caused by having no time to exercise. |
| B．It's difficult for a person to give without expecting anything. |
| C．Half of the middle school students in China are nearsighted |
| D．The only way to make thankfulness a part of your life is to keep a diary. |
| A. Exercise, even just walking. You need to move. Even a walk is quite healthy if you can walk for 30 minutes a day. B. Sleep earlier. Your body has a better rest when you go to bed earlier. It helps you to work more quickly and better. A good sleeping habit will be good for your health. C. Eat more vegetables and cut down junk food. Junk food is bad for your health. It’s hard to change your eating habit but don’t forget that health is more important. D. Always have breakfast. A good life starts with a good breakfast which keeps a good eating habit. Try to eat less in the evening, then you will feel hungry in the morning. E. Don't let yourself be very hungry. If you eat something before you are very hungry, you’ll eat less. If you eat right after you find yourself hungry, you'll eat more than you. F. Think twice about joining weight loss programs. Some of such programs couldn’t work for some people. To lose weight healthily, you can visit websites such as eDiets. G. Visit your doctor twice a year. Go to a doctor for some tests even if you are well. If you have tests twice a year, you can find the problem early. |
【推荐1】The size and shape of your ears show your character more than any other part of the face. Other parts of the face change shapes as we get older, but ears do not change their shapes. They only change in size.
Reading people’s character from their ears is a very old science. In the past people thought that a person’s ears with colour was dangerous. They also thought that the shape of the ears showed if a person was musical or not. Today, too many people believe that the size and shape of the ears help you know if a person is musical.
Ears are all different, and each different thing has a meaning. Next time you look at a person, see if his or her ears are large, medium-size, or small. Look at the lobes (耳垂). Do they stick to the face? Ears that are always red mean that a person may get angry easily. Ears that are always cold and nearly white colour mean that a person has a nervous (神经质) character.
1. Reading people’s character from their ears is ________.| A．only for music | B．an old idea |
| C．very new | D．a good way to talk with others |
| A．he is a kind man | B．he is very happy |
| C．he may get angry easily | D．he drinks too much |
| A．to look at his face, ears and nose |
| B．to look at the size, colour, and shape |
| C．to look at his mouth, eyes and nose |
| D．to look at the hair, eyes and colour |
| A．Looking at a person in the right way. | B．Ears and colours. |
| C．The change of ears. | D．Ears and characters. |
【推荐2】We usually have a runny nose when catching a cold. Yet our parents tell us not to blow our nose so hard. Why is that?
When you blow your nose very hard, the air can move from your nose to your ears and cause problems. When you have a cold, the tube (管子) that connects your nose to your cars gets smaller. So the air can’t go back to the nose and stays in the ear. This can hurt the eardrum (鼓膜) and may make your ears ring or even cause hearing loss. If the things from your nose go into your ears with viruses (病毒) and bacteria (细菌), it can cause ear infections (感染).
If the air from the nose goes into the eyes, it can make the pressure in the eyes go up. This might cause different eye problems and even affect how well you can see in the long run (从长远来看). This is why, sometimes, when you blow your nose too hard, both your eyes and ears may feel uncomfortable.
To clear your nose, just close one nostril (鼻孔) at a time and softly blow. If your nose is blocked up, putting a warm towel (毛巾) on your nose and forehead (前额) can also help you feel better.
Since your nose and throat (咽喉) are connected, you can also try to get the mucus (粘液) out from your mouth. It’s a good idea to take a deep breath with the nose, then cough quickly to get out the mucus in your mouth.
1. What may happen if you blow your nose so hard?a. hurt eardrum b. make ears ring c. cause hearing loss d. cause ear infections
e. make eyes uncomfortable f. have a headache
| A．abccf | B．abcdf | C．abcde | D．acdef |
A． | B． | C． | D． |
| A．She can breathe deeply with her nose and coughs quickly. |
| B．She can have a big drink of water and coughs. |
| C．She can blow her nose and then opens her mouse. |
| D．She can use her mouth to breathe and blows her nose. |
A． | B． | C． | D． |
| A．In a sports newspaper. | B．In a weather report. |
| C．In a book review. | D．In a health magazine. |
【推荐3】Humans have many organs（器官）, but you can enjoy lots of things because of your ears. Do you know how the ears work?
The ear has three parts: the outer ear（外耳）, the middle ear and the inner ear. The outer ear is the part you can see. It collects sounds around you. The sounds then travel down to the middle ear, the inner ear and then to your brain.
Your ears never stop working, even when you are asleep! In other words, your ears continue hearing sounds, but you can’t hear the sounds just because your brain ignores them.
But ears do more than hear. They help you keep balanced（平衡的）, too. In the inner ear, there are organs that are filled with liquid（液体） and covered with small hairs. When you move your head, the liquid and hairs move, too. They send messages to your brain about the position of your head.
More surprisingly, ears even help to taste food. Of course, you don’t actually taste food with your ears. But there are nerves（神经） running through the middle ear that connects the tongue to the brain. If something happens to your ears, you might have a hard time telling different tastes.
The ears are truly important organs. We should protect our ears well.
1. How many parts does the ear have?| A．2. | B．3. | C．4. | D．5. |
| A．pays attention to | B．makes a difference to | C．looks forward to | D．takes no notice of |
| A．Help taste food and tell colors. | B．Help keep balanced and tell colors. |
| C．Help keep balanced and taste food. | D．Help keep balanced and wake people up. |
| A．The inner ears can collect sounds around you. |
| B．Your ears stop working when you are asleep. |
| C．If something happens to your ears, you might tell different tastes easily. |
| D．The organs in the inner ear are filled with liquid and covered with small hairs. |
| A．How ears work. | B．What ears can hear. |
| C．How we protect ears. | D．Where ears send messages to. |
【推荐1】Can you swim? Do you like swimming? Yes? Well, how can you learn to swim? I think the best way is to go into the water and learn. I’m afraid you’ll never learn to swim just by reading books about swimming or looking at others swimming. It’s the same with the English study. We must practice, practice and practice.
Listening and speaking are very important for beginners. The children in English-speaking countries first listen to others. Then they try to imitate and speak. We can listen to English programs on radio. You may just understand a few words. It doesn’t matter. Just be relaxed, try to catch every word.
Somebody may be a good listener. But he dares not speak. He’s afraid of making mistakes. You know we sometimes make mistakes when we speak Chinese. Don’t be afraid. We must be brave. If you really want to learn English well, you must try to speak with everyone so long as he knows English. Whether you know him or not is not important when there’s nobody to talk with, you can talk to yourself in English. It’s interesting and also a good way to practice your spoken English. Remember, the more you speak, the fewer mistakes you’ll make.
Reading and writing are more important for senior school students. First we must choose the books we’re interested in. A lot of reading will improve your language sense. This is the most important.
Keep writing English diaries. We can also write English articles. You may even post them to English magazines. Don’t be afraid of failure. Failure is the mother of success.
Easier said than done. Well, let’s do more practice from now on. I’m sure you’ll learn English well in this way.
1. You can learn to swim by ________.| A．reading books about it | B．looking at others swimming |
| C．having lessons on it | D．going into the river and learning |
| A．listening and speaking | B．reading and writing | C．A and B | D．swimming |
| A．Don’t make mistakes. | B．Study hard. |
| C．Try not to speak English. | D．Don’t be afraid. |
| A．Listening. | B．Speaking. | C．Reading and writing. | D．Learning. |
| A．by train | B．on the radio | C．every minute | D．now and then |
【推荐2】Australia’s Great Barrier Reef(礁) is the world’s largest reef system. It is over 2,600 kilometers long. The reef is home to many animals: fish, birds, turtles, sharks and even whales. Unfortunately, the reef that all these animals call home is in danger.
Climate(气候) change, overfishing and water pollution are damaging(毁坏) the reef every year. Coral(珊瑚) reef experts at Australian universities say that if we do nothing to stop it, the coral reef could be destroyed before the year 2030.
Everyday things like driving cars, using electricity and running a factory give out greenhouse gases into the air. These gases make the Earth warmer and warmer. This is a problem for the Great Barrier Reef and other reefs around the world.
Coral is very fragile, and even a 2-degree increase in water temperature is enough to kill it, according to Ove Hoegh-Guldberg, reef researcher at the University of Queensland, Australia. If the water temperature doesn’t go down, the coral will die.
But it’s not only the coral that’s in danger. One quarter of all sea life lives on coral reefs.
If air pollution is not slowed down or stopped, then the water will warm by at least 3 degrees in the next 20 years, according to reef experts in a report from University of Queensland. This would spell the end for the Great Barrier Reef and all its sea life.
1. Which of the following can damage the Great Barrier Reef？a. sea animals b. global warming c. overfishing d. water pollution
| A．abc | B．acd | C．bcd | D．abd |
| A．the coral reef will be destroyed before 2030 |
| B．greenhouse gases are the biggest problem |
| C．rising water temperatures could kill the coral |
| D．other sea animals living in coral reefs are also in danger |
| A．easily damaged | B．hard to break | C．small and soft | D．clean and tidy |
| A．coral can easily get used to changes | B．it’s time to take action to protect coral |
| C．coral in other areas is not in danger | D．all sea animals will die with the Great Barrier |
My job was to help little children get on the back of a little horse. I kept telling the children to wait their turn and holding ice cream for them while they rode about. It’s clear that I was growing older and should be more responsible.
Suddenly, a boy came to the horse. He took the little horse's reins (缰绳)! The horse stopped, and the girl on its back started to fall. I was trying to reach the girl when I saw Tiger go by my legs. It held the horse's reins and pulled the horse away from my legs. I caught the girl just before we both hit the ground. The girl sat on top of me. She was laughing at the ice cream on my face. The horse's reins were in Tiger's mouth!
Thanks to Tiger's fast action, I saved the little girl. We were both heroes. And Tiger, the fastest dog I've ever known became my new best friend.
1. Tiger is ________.
| A．a tiger | B．the boy’s name |
| C．a dog | D．the girl’s name |
| A．feed the horse | B．look after the children |
| C．ride the horse | D．take care of the horse |
| A．A boy. | B．The writer. | C．The girl. | D．Tiger. |
| A．serious and outgoing |
| B．patient and interesting |
| C．brave and responsible |
| D．careful and hardworking |
