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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!

【小题1】It’s a good idea to eat more high-fiber foods, such as________.
A．white breadB．beefC．cabbageD．cubes
【小题2】The underlined word “damage” in paragraph 2 means________ in Chinese.
A．保护B．提升C．破坏D．摧毁
【小题3】Which of the following can be put in________?
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.
【小题4】Which is probably the best title of this passage?
A．Eat Well for Your TeethB．Do More Exercise for Teeth
C．Have a Lovely SmileD．Make Sure to Brush Teeth
22-23八年级下·重庆沙坪坝·开学考试
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If you want to live to 100 years old, you need healthy food and lots of exercise.

Breakfast is important. Milk and bread are good for breakfast. They give you energy. For lunch and dinner, you can have rice and vegetables. Healthy people seldom eat many snacks. Sweet snacks give you energy but they’re not healthy. You can have an orange or an apple after each meal.

You need lots of exercise, too. You can exercise for about 30 minutes every day. You will feel healthier (更健康) in a month. You can swim. You can play basketball. However, don’t play computer games or chat with friends on the Internet for many hours every day.

Get up from your chair, everyone! Change your lifestyle today! You can live to 100 years old.

You can always feel young with the right food and the right exercise.


根据语篇内容，选择最佳选项。
【小题1】If you want to live to 100 years old, what do you need?
A．You need to eat lots of food.
B．You need to play computer games.
C．You need healthy food and lots of exercise.
【小题2】Why milk and bread are good for breakfast?
A．Because they are cheap.
B．Because they have much energy.
C．Because they look good.
【小题3】How often do healthy people eat snacks?
A．Always.B．Seldom.C．Once an hour.
【小题4】How long should (应该) you exercise every day?
A．About half an hour.B．About two hours.C．About three minutes.
【小题5】What can we learn from the passage?
A．We can live to 100 if we eat many snacks.
B．Breakfast isn’t important.
C．Playing computer games for a long time isn’t good for our health.

Do you know many students aren’t healthy?

Now many students know sports are good for their health. 【小题1】 Some of them only watch them on TV. What’s more (而且), many of them only like watching TV and playing computer games. They often say, “【小题2】 Play basketball? Oh, it sounds difficult.”

【小题3】 They don’t have carrots for lunch and they don’t have tomatoes for dinner. But vegetables and fruit are healthy food. 【小题4】 But they like junk food (垃圾食品). 【小题5】

If you would like to be healthy, eat vegetables and play sports every day.

A．And many boys and girls don’t like vegetables.
B．They need to eat some of them every day.
C．But they don’t like playing sports.
D．Play soccer? Oh, it sounds boring.
E．They like eating hamburgers, French fries, ice-cream ...

HEALTHY EATING PLATE

Use healthy oils (like olive and canola oil) for cooking on salad and at the table. Limit butter. Avoid trans fat.

Drink water, tea or coffee (with little or no sugar). Limit milk/dairy (1-2servings/day) and juice (1small glass/day). Avoid sugar drinks.

The more veggies-and the greater the variety-the better.

Potatoes and French fries don’t count.


        Eat plenty of fruits of all colours.

Eat a variety of whole grains (like whole-wheat bread, whole-grain pasta, and brown rice). Limit refined grains (like white rice and white bread).

Choose fish, poultry, beans, and nuts; limit red meat and cheese; avoid bacon, cold nuts, and other processed meats.

Harvard School of Public Health The Nutrition Source www.hsph.harvard.edu/nutritionsource.Harvard Medical School Harvard Health Publications www.health.harvard.edu.
【小题1】According to the picture above what should we eat most every day?
A．Eat more healthy protein than fruits.B．Eat more whole grains than vegetables.
C．Eat less vegetables than healthy protein.D．Eat less healthy protein than whole grains.
【小题2】If you want to keep healthy, what should you do?
A．Stop eating meat.B．Use olive for cooking.
C．Drink milk tea often.D．Eat whole-wheat bread with bacon.
【小题3】Where can we find this healthy eating plate?
A．ins novel.B．In a cooking book.
C．In a dictionary.D．On a school website.

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