广西来宾市2017高考英语一轮阅读理解专练（78）含答案

　　阅读下列短文, 从给的四个选项 (A、B、C和D) 中, 选出最佳选项。

　　(2017·合肥市二模，D)

　　It is a tall tale that terrifies most young children. Swallow a piece of chewing gum and it will

　　remain in your body for seven years before it is digested. An even worse tale is that swallowed

　　gum can wrap itself around your heart.

　　But what does happen if you should accidentally eat a stick of gum? Chewing gum is made

　　out of gum base, sweeteners, coloring and flavoring. The gum base is pretty indigestible—it is a

　　mixture of different ingredients (成分) that our body can't absorb.

　　Most of the time, your stomach really cannot break down the gum the way it would break

　　down other foods. However, your digestive system has another way to deal with things you

　　swallow. After all, we eat lots of things that we are unable to fully digest. They keep moving

　　along until they make it all the way through the gut (肠子) and come out at the other end one or

　　two days later.

　　The saliva (唾液) in our mouths will make an attempt at digesting chewing gum as soon as

　　we put it in our mouths. It might get through the shell but many of gum's base ingredients are

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