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(牙線).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!

【小題1】
A．close B．wash C．serve D．open
【小題2】
A．thoughB．because C．if D．when
【小題3】
A．tight B．whiteC．healthyD．clean
【小題4】.
A．once B．twice C．three times D．four times
【小題5】.
A．onB．in C．a(chǎn)t D．to
【小題6】
A．seconds B．minutes C．hoursD．days
【小題7】.
A．everyB．both C．either D．neither
【小題8】3
A．a(chǎn)tB．inC．on D．for
【小題9】
A．starts B．producesC．keeps D．suggests
【小題10】.
A．a(chǎn) lot B．lots of C．few D．a(chǎn) little


【小題1】D
【小題2】B
【小題3】C
【小題4】B
【小題5】A
【小題6】B
【小題7】A
【小題8】A
【小題9】C
【小題10】B

解析試題分析：
【小題1】本句的含義是當(dāng)你笑的時(shí)候，你只有張開嘴才可以露出你的牙齒，故本句中的空格應(yīng)填張開的單詞open，故本空選D。
【小題2】第一段最后一句問為什么牙齒越健康，你越感到開心？在英文中用why來提問的句子，回答語通常用because，故本句的空格處選B。
【小題3】前句提到要保護(hù)牙齒，應(yīng)該是使牙齒堅(jiān)固，健康才符合題意，healthy表示健康的意思，故本句的空格處選C。
【小題4】本句的后半句是 after getting up and before bedtime.意思為在起床后和睡覺前刷牙，所以每天刷牙兩次，twice是兩次的意思，故本句的空格處選B。
【小題5】在某物上花費(fèi)時(shí)間用spend的結(jié)構(gòu)為spend +時(shí)間+on或doing+sth，故本句的空格處選C。意思為刷牙時(shí)應(yīng)該花費(fèi)一點(diǎn)時(shí)間刷牙后跟和牙兩側(cè)。
【小題6】根據(jù)常識(shí)我們知道本句的含義是每次刷牙至少要花費(fèi)3分鐘時(shí)間，minute是分鐘的意思，與題意相符，故本句的空格處選B。
【小題7】本句的含義應(yīng)該是叫你的父母每隔三個(gè)月幫你買一把新牙刷，選項(xiàng)中只有every表示頻率，意思為每一，所以本句的空格處選A。
【小題8】本句中的at first是固定短語，意思為首先，起初，故本句中的空格處選A。
【小題9】本句的含義是刷牙會(huì)使你的牙齒健康，符合句意的為keep單詞，意思為保持，使某物保持某個(gè)狀態(tài)可用keep sth+形容詞，故本題選C。
【小題10】根據(jù)常識(shí)我們應(yīng)該知道吃許多水果和蔬菜有利于健康，本題中的水果和蔬菜為可數(shù)，故不用a little，a lot修飾動(dòng)詞或比較級(jí)，不修飾名詞，故不選，few是否定詞，意思為幾乎沒有，與句意不符，a lot of是大量的意思，可以修飾可數(shù)名詞，等同于lots of，故本句的空格處選B。
考點(diǎn)：本文是一篇介紹有關(guān)牙齒健康的說明文。
點(diǎn)評(píng)：本文主要介紹了和健康牙齒有關(guān)的內(nèi)容，健康牙齒會(huì)是你感到開心的原因，如何使自己的牙齒保持健康，如何刷牙，刷牙的部位，方式和次數(shù)等內(nèi)容。閱讀本文時(shí)，應(yīng)以健康牙齒為話題，根據(jù)上下文內(nèi)容和基本常識(shí)，反復(fù)閱讀本文，推斷出每個(gè)空格所填的單詞及含義。

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