根据短文内容，从方框中选择适当的单词并用其正确形式填空，使短文内容完整。并将答案写在答题卡的相应位置上。每个词只能用一次，有两个多余词。
| as just which drink begin slow if fall cost little it time |
Do you know China’s Teeth Care Day? It 1 ． on September 20 every year. It began in 1989. Its aim is to take good care of people’s teeth.
There are thirty—eight students in Wang Bin’s class, and eleven of them have tooth problems 2 ． bring them much trouble.
Mao Kang said, “I had three bad teeth. Each tooth 3 ． me four hundred yuan, and I had to see the dentist five 4 ． .”
Liu Jian said, “Something is wrong with my front teeth, I don’t like to open my mouth. My classmates say my teeth look like an old woman’s, I’m sad to hear that. And I can’t speak clearly now.”
Do you have good teeth, my friends? 5 ． you want to take care of your teeth, please do these:
◆Brush your teeth at 6 ． once a day. If you can, brush them after every meal.
◆Brush all your teeth, do not 7 ． brush the front ones.
◆Brush your teeth 8 ． and carefully. Spend four minutes or more each time.
◆Do not use your teeth 9 ． tools to open bottles. It's very easy to hurt your teeth to do such jobs.
◆Use soft toothbrushes. Get a new toothbrush every three months.
◆Eating and drinking is also important to your teeth. Eat lots of fruits and vegetables and drink water. Try not 1 0 ． Coke and other drinks.
1 ． begins
2 ． which
3 ． cost
4 ． times
5 ． If
6 ． least
7 ． just
8 ． slowly
9 ． as
1 0 ． to drink
【分析】
本文主要讲述了中国牙齿护理日的时间，以及现在人们的牙齿问题，并讲解了一些保养牙齿的方法。
1 ．
句意：每年 9 月 20 日开始。此处应填一个动词作谓语，根据 “It began in 1989.” 和备选词汇可知，此处表达 “ 开始 ” ，根据 “every year” 可知，该句为一般现在时，主语 “It” 是第三人称单数，谓语用动词的三单， “begin” 的三单形式是 “begins” 。故填 begins 。
2 ．
句意：王斌的班上有三十八个学生，其中十一个有牙齿问题，给他们带来很多麻烦。该句为定语从句，从句中缺主语，先行词 “tooth problems” 指物，用 “which” 。故填 which 。
3 ．
句意：每颗牙齿花了我四百元，我得看五次牙医。此处应填一个动词作谓语，根据 “Each tooth … me four hundred yuan” 和备选词汇可知，空格处表达 “ 花费 ” ，用 “cost” ，根据 “I had three bad teeth.” 可知，该句为一般过去时， “cost” 的过去式是 “cost” 。故填 cost 。
4 ．
句意：句意：每颗牙齿花了我四百元，我得看五次牙医。根据 “and I had to see the dentist five …” 和备选词汇可知，此处表达 “ 五次 ” ， time 次数， “time” 的复数是 “times” 。故填 times 。
5 ．
句意：如果您想保养您的牙齿，请执行以下操作：。分析句子结构可知，该句为 if 引导的条件状语从句，遵循 “ 主情从现 ” 的原则，空格置于句首，首字母要大写。故填 If 。
6 ．
句意：每天至少刷牙一次。根据 “ If you can, brush them after every meal.” 和备选词汇可知，此处表达 “ 至少 ” ， at least 至少。故填 least 。
7 ．
句意：刷全部的牙，不要只刷前面的牙。根据 “Brush all your teeth” 和备选词汇可知，此处表达不要 “ 只 ” 刷前面的牙， just 仅仅、只。故填 just 。
8 ．
句意：慢慢地、小心地刷牙。根据 “and carefully” 和备选词汇可知，此处表达 “ 慢慢地 ” ，用副词， “slow” 的副词是 “slowly” 。故填 slowly 。
9 ．
句意：不要用牙齿作为打开瓶子的工具。根据 “to open bottles” 和备选词汇可知，此处表达 “ 作为 ” ，用 “as” 。故填 as 。
1 0 ．
句意：尽量不要喝可乐和其他饮料。根据 “Eat lots of fruits and vegetables and drink water.” 和备选词汇可知，空格处表达 “ 喝 ” 可乐， try to do sth. 尝试做某事，故空格处填 to drink 。故填 to drink 。
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