BÀI 3.read the passage and choose the best answer to each question from the four choice (A,B,C,D) Carbohydrates , which are sugars ,are an essential part of healthy diet . They provide the main sources of energy for the body , and they also FUNCTION to flavor and sweeten foods.Carbohydrates RANGE from simple sugars like glucose to complex sugars such as amylose and amylopection .Nutritionist ESTIMATE that carbohydrates should make up about on-fourth to one-fifth of a person's diet . This translate to about 75-100 grams of carbohydrates per day A diet that is DEFICIENT in carbohydrates can have an adverse effect 10 on a person's health.When the body lacks a sufficients amount of carbohydreates it must then use its protein supplies for energy , a process called gluconeogenesis . THIS,however,results in a LACK of neccessary protein ,and further health difficulties may occur . A lack of carbohydrates can also lead to ketosis , a build up of ketones 15 in the body that causes fatigue,lethargy,and bad breath 1What is the main idea of this passage A .Carbohydrates are needed for good health B.Carbohydrates prevent a build-up of protein C.Carbohydrates can lead to ketosis D.Carbohydrates are an expendable part of a good diet 2 The word "function" as used in line 2 refers to which of the following A.Neglect B.Serve C.Dissolve D.Profess 3.The word "range" as used in line 3 is closet in meaning to which of the following A.Probe B.Proceed C.Hail D.Extend 4.In line 4 , the word "estimate" could best be replaced by A.Disblieve B.Declare C.Calculate D.Wonder 5 .According to the passage,what do the most ntritionists suggest A.Sufficient carbohydrates will prevent gluconeogenesis B.Carbohydrates are simple sugars called glucose C.Carbohydrates should make up about a quarter of a person's daily diet D.Carbohydrates should be eaten in very smalll quantities 6.Which of the following do carbohydrates not do A.prevent ketosis B.cause gluconeogenesis C. provide energy for people D.flavor and sweeten food 7.Which of the following words could best replace "deficient" as used in line 6 A.outstanding B.abundant C.insufficient D.unequal 8.what does the word "this" refer to in line 8 A.using protein supplies for energy B.converting carbohydrates to energy C.having a deficient in carbohydrates D.having an insufficient amount of protein 9.According to the passage , which of the following does not describe carbohydrates A.a protein supply B.a necessity C.a range of sugars D.an energy source 10.The word "lack" in line 8 is most similar to whih of the following A.Plethora B.shortage C.derivation D.commission