【題目】根據(jù)短文理解，選擇正確答案。
It is a tall tale（夸張的故事）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(難消化的)—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 (腸子) 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（殼） but many of gum's base ingredients are indigestible. It's then down to our stomach muscles—which contract(收縮) 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 attempt
B.the salvia
C.the shell
D.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?

【答案】
（1）A
（2）B
（3）B
（4）C
【解析】本文講述了傳言吞食的口香糖要花七年才能消化，甚至還有傳言說口香糖會(huì)在你的肚子里纏繞。然而，事實(shí)的真相是對(duì)于那些不能被消化的食物，人體的消化系統(tǒng)會(huì)將它們排除體外。

⑴A 推理判斷題。根據(jù)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?yàn)槁犃嗽S多關(guān)于口香糖的恐怖故事，所以孩子們可能會(huì)對(duì)吞食口香糖感到恐懼。故選A。

⑵B 細(xì)節(jié)題。根據(jù)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會(huì)被排除體外。故選B。

⑶B 推理題。根據(jù)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. （我們一把它放在嘴里，我們嘴里的唾液會(huì)試圖消化口香糖。）再根據(jù)It might get through the shell（殼）but many of gum's base ingredients are indigestible.（它可能通過外殼，但許多口香糖的基礎(chǔ)成分是難消化。）可知，it指The salvia。故選B。

⑷C 主旨大意題。通讀文章可知，本文主要針對(duì)吞食口香糖是否有危害這個(gè)問題進(jìn)行了解釋，澄清口香糖會(huì)在人體內(nèi)纏繞的謠言。故選C。

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