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共用题干 What Is Insulin-dependent Diabetes

恬恬2019-12-17  6
问题 共用题干What Is Insulin-dependent Diabetes?
When you eat,your body takes the sugar from food and turns it into fuel.______(46)Your body uses glucose for energy,so it can do everything from breathing air to playing a video game.But glucose can't be used by the body on its own-it needs a hormone called insulin to bring it into the cells of the body.
Most people get the insulin they need from the pancreas,a large organ near the stomach?The pancreas makes insulin;insulin brings glucose into the cells;and the body gets the energy it needs.When a person has insulin一dependent diabetes,it's because the pancreas is not making insulin.So someone could be eating lots of food and getting all the glucose he needs,but without insulin,there is no way for the body to use the glucose for energy.______(47)
You may have heard older people talk about having diabetes,maybe people of your grandparents'age.Usually,this is a different kind of diabetes called non一insulin一dependent diabetes.It can also be called Type 2 diabetes,or adult-onset diabetes.______(48)
When a kid is diagnosed with juvenile(insulin-dependent)diabetes,he will have that type of diabetes for his whole life.It won't ever change to non-insulin-dependent diabetes when he gets older.
Scientists now think that a person who has juvenile diabetes was born with a certain gene or genes that made the person more likely to get the illness.______(49)
Many scientists believe that along with having certain genes,something else outside the person's body, like a viral infection,is necessary to set the diabetes in motion by affecting the cells in the pancreas that make insulin.
But the person must have the gene(or genes)for diabetes to start' out with一this means you can't get diabetes just from catching a flu,virus,or cold.And this type of diabetes isn't caused by eating too many sugary foods,either.Diabetes can take a long time to develop in a person's body-sometimes months or years?Another important thing to remember is that diabetes is not contagious.______(50)
选项 ______(46)A:Genes are something that you inherit from your parents,and they are in your body even before you're born.B:This sugar-fuel is called glucose?C:It may be possible to beat insulin resistance through lifestyle changes.D:You can't catch diabetes from people who have it,no matter how close you sit to them or if you kiss them.E:The glucose can't get into the cells of the body without insulin.F:When a person has this kind of diabetes,the pancreas usually can still make insulin,but the person's body needs more than the pancreas can make?
答案B
解析文章第一句所讲的内容是当人进食时，身体会从食物中摄取糖分，并把它转化为燃料。B项是对这种燃料的解释，且空白处后的句子中又出现了B项中的名词glucose。故此处选B。 此空处之前的内容提到，如果一个人患上了胰岛素依赖型糖尿病，虽然其通过大量进食获取了所需的全部葡萄糖，但如果没有胰岛素的参与，身体就不能通过利用这些葡萄糖来获得能量。选项E的内容和此处为顺承关系，故选E。 上一段指出胰岛素依赖型糖尿病患者的胰腺无法分泌胰岛素，本段此空处之前的内容提到了非胰岛素依赖型糖尿病，并指出它不同于胰岛素依赖型糖尿病。故此空处应详细介绍此种类型的糖尿病。F项符合文意。 此空处之前的内容是患有青少年糖尿病的人带有先天性的易患此病的基因。A项介绍基因的概念，比较各个选项，可知本题选A。 此空处之前陈述的内容是糖尿病不具有传染性。D项的内容和此处是承接关系，进一步说明其不具有传染性。故本题选D。
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