Question

Everyone wants to have healthy teeth. When you laugh, you will   1    your mouth and show your teeth. The healthier your teeth are, the happier you feel. Why is that?

It's   2    your teeth are important in many ways. Take care of them, and they'll help to take care of you. Strong,   3    teeth help you grow. They also help you speak clearly. You can take pate of your teeth by doing like these:

Brush your teeth   4    a day, after getting up and before bedtime. And you brush all of your teeth, not just the front ones. Spend some time   5    the teeth along the sides and in the back. Take your time while brushing. Spend at least three   6     each time you brush. Be sure your toothbrush is soft. Ask your parents to help you get a new toothbrush   7    three months. Clean between your teeth with dental floss(牙线).It feels strange when you do it   8    first, but soon you'll get used to doing it. Brushing   9    your teeth healthy. You also need to care about what you eat and drink. Eat    10  fruits and vegetables and drink water instead of drinks.

Do you want to have white and healthy teeth? Please brush your teeth!

1.	A．close B．wash C．serve D．open

2.	A．though B．because C．if D．when

3.	A．tight B．white C．healthy D．clean

4..

A．once

B．twice

C．three times

D．four times

5..

A．on

B．in

C．at

D．to

6.	A．seconds B．minutes C．hours D．days

7..

A．every

B．both

C．either

D．neither

8.3

A．at

B．in

C．on

D．for

9.	A．starts B．produces C．keeps D．suggests

10..

A．a lot

B．lots of

C．few

D．a little

Answer

1.D

2.B

3.C

4.B

5.A

6.B

7.A

8.A

9.C

10.B

【解析】

试题分析：

1.本句的含义是当你笑的时候，你只有张开嘴才可以露出你的牙齿，故本句中的空格应填张开的单词open，故本空选D。

2.第一段最后一句问为什么牙齿越健康，你越感到开心？在英文中用why来提问的句子，回答语通常用because，故本句的空格处选B。

3.前句提到要保护牙齿，应该是使牙齿坚固，健康才符合题意，healthy表示健康的意思，故本句的空格处选C。

4.本句的后半句是 after getting up and before bedtime.意思为在起床后和睡觉前刷牙，所以每天刷牙两次，twice是两次的意思，故本句的空格处选B。

5.在某物上花费时间用spend的结构为spend +时间+on或doing+sth，故本句的空格处选C。意思为刷牙时应该花费一点时间刷牙后跟和牙两侧。

6.根据常识我们知道本句的含义是每次刷牙至少要花费3分钟时间，minute是分钟的意思，与题意相符，故本句的空格处选B。

7.本句的含义应该是叫你的父母每隔三个月帮你买一把新牙刷，选项中只有every表示频率，意思为每一，所以本句的空格处选A。

8.本句中的at first是固定短语，意思为首先，起初，故本句中的空格处选A。

9.本句的含义是刷牙会使你的牙齿健康，符合句意的为keep单词，意思为保持，使某物保持某个状态可用keep sth+形容词，故本题选C。

10.根据常识我们应该知道吃许多水果和蔬菜有利于健康，本题中的水果和蔬菜为可数，故不用a little，a lot修饰动词或比较级，不修饰名词，故不选，few是否定词，意思为几乎没有，与句意不符，a lot of是大量的意思，可以修饰可数名词，等同于lots of，故本句的空格处选B。

考点：本文是一篇介绍有关牙齿健康的说明文。