Question

It is a tall tale（夸张的故事）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（吞） 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(难消化的)—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（壳） but many of gum's base ingredients are indigestible. It's then down to our stomach muscles—which contract(收缩) and relax, much like the way an earthworm moves—to slowly force the things that we swallow through our systems.

Swallowing a huge piece of gum or swallowing many small pieces of gum in a short time can cause a blockage within the digestive system, most often in children, who have a thinner digestive tube than adults—but this is extremely rare.

1.Children might feel terrified after swallowing chewing gum mainly because ________.

A．they believe the tall tales about chewing gum

B．chewing gum will stay in their body for years

C．their heart will be wrapped by chewing gum

D．chewing gum is indigestible for children

2.What happens to the food that can't be fully broken down?

A．It remains in our digestive system forever.

B．It will be eventually moved out of our body.

C．It will fight against the power of the gut.

D．It will stick to the gut for one or two days.

3.The word It (in the 4th paragraph) refers to “________”.

A．the attemptB．the salviaC．the shellD．the gum base

4.What would be the best title for text?

A．How does our digestive system work?

B．Can chewing gum be swallowed by kids?

C．Does swallowing chewing gum matter?

D．Why swallowing chewing gum frightens kids?

Answer

1.A

2.B

3.B

4.C

【解析】

试题分析：本文讲述了传言吞食的口香糖要花七年才能消化，甚至还有传言说口香糖会在你的肚子里缠绕。然而，事实的真相是对于那些不能被消化的食物，人体的消化系统会将它们排除体外。

1. 推理判断题。根据文章第一段It is a tall tale that terrifies most young children.和An even worse tale is that swallowed gum can wrap itself around your heart.可知，因为听了许多关于口香糖的恐怖故事，所以孩子们可能会对吞食口香糖感到恐惧。故选A。

2. 细节题。根据第三段They keep moving along until they make it all the way through the gut and come out at the other end one or two days later. 可知，那些不能被消化的食物最后会被排除体外。故选B。

3. 推理题。根据上文The saliva (唾液) in our mouths will make an attempt at digesting chewing gum as soon as we put it in our mouths. （我们一把它放在嘴里，我们嘴里的唾液会试图消化口香糖。）再根据It might get through the shell（壳）but many of gum's base ingredients are indigestible.（它可能通过外壳，但许多口香糖的基础成分是难消化。）可知，it指The salvia。故选B。

4. 主旨大意题。通读文章可知，本文主要针对吞食口香糖是否有危害这个问题进行了解释，澄清口香糖会在人体内缠绕的谣言。故选C。

考点：考查科普类短文阅读。

【名师点睛】

关于推理判断题

1.要求考生在阅读时，要抓住文章的主题和细节，分析文章结构，根据上下文内在联系，挖掘文章的深层含义。在进行推理时，考生一定要仔细阅读短文，千万不可脱离原文而仅凭个人的看法，主观臆断。

2.对于暗含在文章中的人物的行为动机、事件的因果关系及作者未言明的倾向、意图、态度、观点等要进行合乎逻辑的判断、推理、分析，进一步增强理解能力，抓住材料实质性的东西。45.5.A 推理判断题。根据文章第一段It is a tall tale that terrifies most young children.和An even worse tale is that swallowed gum can wrap itself around your heart.可知，因为听了许多关于口香糖的恐怖故事，所以孩子们可能会对吞食口香糖感到恐惧。故选A。

考点：考查说明文阅读