【題目】Teeth are important. Strong , healthy teeth help you chew(咀嚼) foods that help you grow. They help you speak clearly. And yes, they help you look best. Here are some tips for you to take care of your teeth:

1.Brush your teeth the right way.

Brush your teeth at least twice a day – after breakfast and before bedtime. If you can, brush after lunch or after sweet snacks, too. Brush all of your teeth, not just the front ones. Spend time brushing teeth along the sides and back of your mouth. Spend at least three minutes each time you brush. Play a song you like to help pass the time. Get a new toothbrush every three months. When you buy toothbrush, be sure it has soft bristles(鬃毛).

2.Learn how to floss(用牙線清潔牙齒) your teeth.

Flossing is a very important way to keep your teeth healthy. Food may hide between two teeth. Flossing can help get rid of (清除) it. You’ll need to floss your teeth at least once a day.

3.Have good eating habits.

You need to be careful about what you eat and drink. Eating sugar is a major cause of tooth decay(蛀牙).Eat lots of fruits and vegetables and drink water instead of soda(蘇打汽水).

根據(jù)短文內(nèi)容，選擇最佳答案。

【1】How many times at least should we brush our teeth a day?

A.1.B.2.C.3D.4.

【2】How often should we change our toothbrushes?

A.Never.B.Three times a month.

C.Every three months.D.Every month.

【3】The bristles of the toothbrush must be______.

A.hardB.softC.expensiveD.new

【4】What is the major cause of tooth decay?

A.Not brushing teeth.B.Not changing toothbrush.

C.Eating sugar.D.Not flossing teeth.

【5】Which is the right way to take care of teeth?

A.Only brush front teeth.

B.Don’t brush teeth before sleeping.

C.Spend at most three minutes to brush teeth each time.

D.Eat lots of fruits and vegetables and drink water instead of soda.

【答案】

【1】B

【2】C

【3】B

【4】C

【5】D

【解析】

這是一篇科普知識類閱讀，主要介紹牙齒非常重要．堅硬、健康的牙齒能幫助你咀嚼助你成長的食物．它們能讓你說話時口齒清晰．并且，它們讓你擁有很好的容貌，作者給出了幾個方法幫助我們保護牙齒．

【1】細(xì)節(jié)理解題．根據(jù)第二段第一句Brush your teeth at least twice a day-after breakfast and before bedtime每天早飯前和睡覺前至少刷牙兩次．可知，每天刷2次牙，選B．

【2】細(xì)節(jié)理解題．根據(jù)第二段第二行Get a new toothbrush every three months．每三個月買一把新牙刷．可知，每三個月?lián)Q牙刷，選C．

【3】細(xì)節(jié)理解題．根據(jù)第二段最后一句When you buy toothbrush，be sure it has soft bristles（鬃毛）．當(dāng)你買牙刷，一定有柔軟的鬃毛．可知，牙刷毛必須是軟的．選B．

【4】細(xì)節(jié)理解題．根據(jù)最后一行Eating sugar is a major cause of tooth decay（蛀牙）．吃糖是蛀牙的主要原因．可知，是吃糖．選C

【5】細(xì)節(jié)理解題．根據(jù)最后一句Eat lots of fruits and vegetables and drink water instead of soda（蘇打）．多吃水果和蔬菜，而不喝蘇打水．可知，D選項"多吃水果和蔬菜，而不喝蘇打水．"是照顧牙齒的正確方法．選D．

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