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問6 次の英文を読んで,。あとの問いに答えなさい>
Today, many people are very interested in *keeping their teeth clean. Weuse many things to IE
them clean: a *toothbrush, *dental floss, and so on. Many jsinds of *electric toothbrushes are so 反
ur teeth are very important。 and so we try to keep (he
shops、 We have thought for many ye8rS that o
*government in 2016, tbe number of people who nav。
clean、 YAccording to a *report by the Japan68e
5 more than 20 teeth at the age of 80 year8 Or OVer W83 51.2% among all the people atthat age. Tn 2011.
it was 40.2%. The report shows that people are noW more interested in keeping their teeth clean and
take care ofthem very well. Now, let's think about our teeth-
Tirst。 why are our teeth important? Wecan fite meces_of food cf apdさchew-tRean because we
have teeth、 ( ① ) Our teeth have some other 1mportant jobs. You know we use them to speal
*clear Sounds. There is another interesting
Tf you donYt have your front teeth, it j8 dificult to make
at the *abihty to play sports is *related to our
thing about our teeth. Today, some scientiStS think 人
*healthy teeth. In a report, people who have ealthy teeth can do many sports better than people who
dont. Then, why is our abity better when onr teeth are bealthy? One *reason is this. The *dental
10
g to some scientists, when you do a Sport you can get
bite is important when We play Sports. Accordin,
15 more power by *clenching the *Dack teeth hard. Im another report, many SPortS players take more care
of their teeth than people who don't play sports, and manpy sports players have more good teeth than
people who don't play SportS.
*In addition to the ability to do sports, a report s
Tt jjnfluences a part of the *bram which works
ayS that memory DOWeT is related to our teeth.
After you eat food, *glucose 革ncreaSes.
remembering things. Ifyou have a bad tooth, you can
These reports about our teeth show that we should take care of them.:
Then, how can you keep your teeth healthy? We usually use a toothbrush, dental floss、 and son.
( ② ) For example, some people in Africa and Tndia chew a short *wooden stick to clean ther teeth.
The wooden stick has *medicinal ingredients which *protect our teeth. There will be more *saliva in
20 it eat much food and your brain doesnt work well.
25 your mouth when you chew a wooden stick, and cleans your teeth. People have many ways to keep
their teeth clean.
*Dentists say, "You should often clean your teeth with a
The answer is very simple.
toothbrush and dental floss.” When you have sweets and drinks, you should choose the ones which
have low *sugar. Also, our mouths have a special job, too.。 In fact, a new report shows that some
30 *bacteria. can protect our teeth. ( ⑧③ ) *However, our teeth don't aways have these good bacteria.
TNow, some scientists are rying to find a Way to grow these good bacteria in our mouths. They dd a
test on many kinds of bacteria and looked for the ones that could be useful to *fght bad teeth. The
best bacteria, called 2A12,” came from children having healthy teeth、.It is not used now, but it wi
come to uS SOon.
35 Trinally, our teeth are very important in our lives. If we have healthy teeth, we can enjoy our hves
more. So, what can you use to clean your teeth? Youcannse awooden stick hke people in Africa and
