题目内容
8.People,like all living things,need food.Food gives us the nutrients our bodies need.(36)AEnergy is needed to carry out the life processes.Our bodies cannot use the nutrients or energy in food unless the food is changed.The changing of food into a form the body can use is called digestion.
What does digestion do?(37)E Digestion also changes the chemicals of food.It changes large,complex food molecules (微粒) into smaller,simpler ones.
(38)C Digestion takes place in the digestive tract.The digestive tract is a long,winding tube in your body.If stretched out,the digestive tract would be more than 9 meters (30 feet) long.
What are the parts of the digestive tract?The parts of the digestive tract are:the mouth,the foodpipe,the stomach,the small intestine(肠),and the large intestine
There are many organs along the digestive tracts,such as the liver.(39)F The digestive tract and the other digestive organs make up your digestive system.
Food enters the body through the mouth.Waste materials (undigested food) leave the body through the anus(肛门).The anus is at the end of the large intestine.
Digestion is a step-by-step process.(40)B It takes food from one to two days to pass through the entire digestive tract.
A.It also gives us energy.
B.It does not take place quickly.
C.Where does digestion take place?
D.Does the food also give us much strength?
E.Digestion breaks down large pieces of food into smaller pieces.
F.These organs are not part of the digestive tract,but they help in digestion.
G.Although they don't belong to the digestive tract,they help us fight diseases.
分析 本文属于说明文阅读,作者通过这篇文章主要向我们描述了消化这种生理过程的地点,器官,作用等.
解答 36.A.推理判断题.根据前文Food gives us the nutrients our bodies need可知食物不仅给我们营养还给我们能量;故选A.
37.E.推理判断题.根据后文It changes large,complex food molecules (微粒) into smaller,simpler ones可知消化是把大块食物分解成小块;故选E.
38.C.推理判断题.根据后文Digestion takes place in the digestive tract.The digestive tract is a long,winding tube in your body可知提出疑问消化在哪里发生?故选C.
39.F.推理判断题.根据后文The digestive tract and the other digestive organs make up your digestive system可知这些器官不是消化道的一部分,但有助消化;故选F.
40.B.推理判断题.根据前文Digestion is a step-by-step process可知消化是一个循序渐进的过程,不是迅速发生的;故选B.
点评 七选五阅读是完成性阅读,和完形填空很类似,不同的是一个选词,一个选句子.解题时,要注意上下文语境,充分考虑信息词(选项中和空格前后句子中相同或相近的词),选出最符合语境的句子.
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