Question

【題目】 While you eat, you use them to help cut up food. When you smile, you show them off to look your best. Sep. 21 will be the 28th National Teeth Care Day in China. It’s the perfect time for you to learn some tips on how to protect your teeth.

First of all, we need to pick a good toothbrush. Softness is the key. Brushes with hard bristles (刷毛) can hurt your teeth and gums (牙齦). Choose one with soft bristles and rounded ends. Also, it is easy for you to reach all your teeth with a brush with a small head, since they can push into the small spaces of your mouth.

Next you need to learn the correct way to brush our teeth. Doctors around the world recommend the Bass brushing technique (貝氏刷牙法).The method advises you to brush your teeth along the gum line at a 45-degree angle (角度) with very small back-and-forth vibrating motions (顫動(dòng)). Bad things usually hang out where the gums and teeth meet. You can clean the area well and prevent tooth and gum disease with this method.

After a good brush, you need to go on to floss (用牙線清理) your teeth. Put dental floss into the space between two teeth and use a careful back-and-forth motion. It helps get food out of the spaces. But don’t move the floss too hard, or it may hurt your gums.

Tips on how to protect your teeth
Before brushing	Picking a good toothbrush with soft bristles is the most 【1】 or your teeth and gum can be hurt.
	Choosing a toothbrush with a small rounded head also matters a lot because it can easily reach all your teeth without any 【2】.
While brushing	The Bass brushing technique is highly recommended.
	This method 【3】 brushing your teeth along the gum line at a 45-degree angle with very small back-and-forth vibrating motions, which can clean the area well.
After brushing	For a 【4】 clean, you’d better to floss your teeth to get food out of the spaces between two teeth.
	Remember to move the floss gently to 【5】 hurting your gums.

Answer 1

【答案】

【1】necessary

【2】difficulty

【3】suggests

【4】further

【5】avoid

【解析】

此文介紹了三種保護(hù)牙齒的方法：選擇合適的牙刷，正確的刷牙方式，用牙線清理牙齒。

【1】推理判斷題。根據(jù)“First of all, we need to pick a good toothbrush. Softness is the key. Brushes with hard bristles (刷毛) can hurt your teeth and gums (牙齦). Choose one with soft bristles and rounded ends. 首先，我們需要挑選一把好的牙刷。柔軟是關(guān)鍵。用硬毛刷會(huì)傷害你的牙齒和牙齦。選擇一把軟毛和圓頭的牙刷�！笨赏浦�，軟毛的牙刷很有必要。necessary 有必要的，形容詞。故填necessary。

【2】細(xì)節(jié)理解題。根據(jù)“Choose one with soft bristles and rounded ends. Also, it is easy for you to reach all your teeth with a brush with a small head, since they can push into the small spaces of your mouth. 選擇一把軟毛和圓頭的牙刷。而且，用一個(gè)末端小的牙刷很容易刷到你所有的牙齒，因?yàn)樗鼈兡軘D進(jìn)你嘴巴的小空間�！笨芍�。without any difficulty 輕而易舉地，照應(yīng)原文的easy。故填difficulty。

【3】細(xì)節(jié)理解題。根據(jù)“The method advises you to brush your teeth along the gum line at a 45-degree angle (角度) with very small back-and-forth vibrating motions (顫動(dòng)). 該方法建議你以45度角沿著牙齦線刷牙，前后擺動(dòng)幅度很小�！笨芍�。suggest 建議，照應(yīng)原文的advises。故填suggests。

【4】細(xì)節(jié)理解題。根據(jù)“After a good brush, you need to go on to floss (用牙線清理) your teeth. 刷完牙后，你需要繼續(xù)用牙線清潔牙齒�！笨芍�。further 進(jìn)一步的，形容詞，作定語；further clean照應(yīng)原文的go on to floss (用牙線清理)。故填further。

【5】細(xì)節(jié)理解題。根據(jù)“But don't move the floss too hard, or it may hurt your gums. 但是不要用力移動(dòng)牙線，否則會(huì)傷到牙齦。”可知。avoid 避免，動(dòng)詞，使用動(dòng)詞原形與to構(gòu)成不定式作目的狀語。故填avoid。

同義轉(zhuǎn)換

在閱讀題中，有的內(nèi)容需要進(jìn)行同義轉(zhuǎn)換，而這種轉(zhuǎn)換通常包括同詞性的轉(zhuǎn)換或不同詞性的轉(zhuǎn)換，同義詞的轉(zhuǎn)換和反義詞的轉(zhuǎn)換。例如第2小題中，without any difficulty照應(yīng)原文的easy，這是名詞與形容詞的轉(zhuǎn)換。例如第3小題，suggests照應(yīng)原文的advises，這是同義詞的轉(zhuǎn)換。第4小題中，further clean照應(yīng)原文的go on to floss (用牙線清理)，這是名詞詞組與動(dòng)詞和動(dòng)詞詞組的轉(zhuǎn)換。