Question

阅读下面短文，用方框中所给单词的适当形式填空，使短文意思通顺、正确、连贯。

Everyone wants to have healthy teeth. When you laugh, you will open your mouth and __1______ your teeth. The healthier your teeth are, the happier you feel. Why is that?

It’s because your teeth are important in many ways. You can take .___2_____ of your teeth by doing like these:

Brush your teeth ______3___ a day, after getting up and before going to bed. And brush all of your teeth, not just the ____4____ ones. Spend at least three _____5____ each time you brush. Be sure your toothbrush is _______6__. You should use your toothbrush for three months and then ____7____ it.

Clean your teeth with dental floss(牙线). It feels ____8___ when you do it for the first time, but soon you’ll get used to do that. Brushing __9____ your teeth healthy. You also need to care about what you eat and drink. Eat a lot of fruits and vegetables and drink water _____10___of other drinks.

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

Answer

 show 

 care 

 twice

 front 

 minutes

 soft 

 change 

 strange 

 keeps 

 instead

【解析】

试题分析：每个人都想很健康，牙齿健康也是非常重要的。我们每天必须刷两次牙齿，早晨起床和晚上睡觉前。刷牙要至少3分钟，牙刷三个月要换一次。并且不能只刷前面的牙齿，只有这样才能让牙齿保持健康。也可用牙线刷牙，不过很多人不习惯。

 此题考查动词，张开嘴露出牙齿，故用动词show。

 此题考查动词短语take care of表示关心照顾

 此题考查固定短语twice a  day表示一天两次此句的含义是我们要一天刷两次牙。

 此题考查名词，根据语境可知此句的含义是我们应该刷所有的牙，不仅仅是前面的

 此题考查名词，根据语境可知此句的含义是我们刷牙至少要用3分钟故填minutes。

 此题考查形容词，根据语境可知此句的含义是牙刷必须是柔软的，故选soft。

 此题考查动词，牙刷每三个月要换一次，故用动词change。

 此题考查形容词，因feel是系动词其后要用形容词，根据语境可知用牙线刷牙感觉很奇怪，故选strange。

 此题考查固定短语keep sth/sb+形容词表示让某人或某物处于某种状态。因动名词做主语故用keeps.

 此题考查介词短语instead of表示代替。

考点：单词的适当形式变化