Question

Losing a baby tooth can be fun for a kid. You can put it under your pillow and look forward to finding some money there in the morning. And then you can watch your new permanent(永恒的) tooth grow in its place.

But if a permanent tooth falls out, that’s a problem. There isn’t another one under the gum(齒齦)that can replace it. Unfortunately, this happens to some older people. And if permanent teeth fall out or need to be pulled, an older person might need dentures.

Dentures, known as false teeth, are a set of replacement teeth for any teeth that are missing. There are partial dentures, which take the place of only a few teeth and prevent the others from changing position. If all the teeth are gone, the person would need complete dentures, which replace every tooth in the mouth.

Dentures can cause pains at first and take little time to get adjusted to. They also need special care. They should be brushed daily with a special denture brush and cleanser and soaked（浸泡） in denture solution when not in the mouth.

Dentures are important for the old because, without teeth, it’s hard to smile, talk, and eat properly. But it can be a little weird if you see someone take out his or her dentures. It can also be strange to see someone, like a grandparent, without dentures in because he or she won’t have any teeth. Try not to make fun of the person because this could cause hurt feelings.

People usually lose their permanent teeth due to periodontal disease（牙周炎）, or gum disease, which is caused by bacteria that attacks the gums. Diseased gums aren’t strong and healthy, so teeth can get loose and fall out. Older people often have many cavities(洞)that have been filled over the years, and these fillings can weaken over time, leading to more tooth problems.

1.If one of your baby teeth falls out, you ________.

A. should have a false tooth fixed in its place

B. have to put it under your pillow at once

C. will gain a permanent tooth in future

D. can exchange it for some money

2.A person wearing dentures ________.

A. should brush them with a special denture brush every few days

B. will take a very long time to adjust himself or herself to them

C. will experience unpleasant feelings at the beginning of fixing them

D. should use denture solution to soak them in his or her mouth

3.Which of the following is NOT true according to the passage?

A. Partial dentures can prevent the remaining teeth from changing position.

B. Old people will find it hard to smile, talk, and eat properly without teeth.

C. A person’s teeth will possibly get loose if diseases strike his gums.

D. It is hard for a person to wear dentures if all his teeth have fallen out.

4.What does the underlined word “weird” mean in the fifth paragraph?

A. inconvenient B. excited

C. uncomfortable D. impolite

Answer 1

1.C

2.C

3.D

4.C

【解析】

試題分析: 本文介紹了當(dāng)人的那永恒的牙齒松動(dòng)的話，就要考慮安假牙了，尤其對(duì)老年人來(lái)說(shuō)。其次介紹了假牙的用處，重要性等等。

1.】細(xì)節(jié)理解題。從文中第一段You can put it under your pillow and look forward to finding some money there in the morning. And then you can watch your new permanent(永恒的) tooth grow in its place.你可以把掉的牙放在枕頭下面然后盼望在早上找到一些錢。然后你就可以看到新的永恒的牙會(huì)從掉的地方長(zhǎng)出來(lái)�？芍�選C。

2. should be brushed daily with a special denture brush每日清洗，故A不正確。選項(xiàng)B，從文中第四段Dentures can cause pains at first and take little time to get adjusted to.需花費(fèi)很少的時(shí)間來(lái)適應(yīng)假牙，故B不正確。選項(xiàng)D，從中第四段soaked（浸泡） in denture solution when not in the mouth.，故D不正確。選項(xiàng)C，

從文中第四段Dentures can cause pains at first，假牙在最初使用時(shí)會(huì)產(chǎn)生一些痛苦的。故選C。

3. are partial dentures, which take the place of only a few teeth and prevent the others from changing position.可知部分假牙可以防止其他牙改變位置，故A正確。B項(xiàng)，從文中第五段Dentures are important for the old because, without teeth, it’s hard to smile, talk, and eat properly.假牙對(duì)于老人很重要，因?yàn)樗麄儧](méi)有牙齒，發(fā)現(xiàn)很難適當(dāng)?shù)匚⑿�，講話和吃飯，故B正確。C項(xiàng)，從文中第六段People usually lose their permanent teeth due to periodontal disease（牙周炎）, or gum disease, 人們通常會(huì)由于牙周炎或者齒齦病而失去永恒的牙齒，故C正確。 D項(xiàng)，If all the teeth are gone, the person would need complete dentures,從文中第三段If all the teeth are gone, the person would need complete dentures,如果所有的牙都掉完了，那么需要安全部假牙了，故D項(xiàng)表述不當(dāng)，故選A。

4.】詞匯辨析題。從文中第五段的But it can be a little weird if you see someone take out his or her dentures. It can also be strange to see someone,如果你看見有人取出她的假牙，你可能會(huì)覺得有不舒服，故選B。

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