听力原文

Today' s kindergarteners are heavier than kids brought up in the 1970s and 1980s and appear to be on the road to become overweight and obese in the years to come, a new study finds.(1)____"It's not just kids are already overweight getting more and more so, there is an entire shift.(2)____ Even those who are abnormal weight are gaining weight," said lead study author Ashlesha Datar, serious economist at RAND Corp. in Santa Monica, Calif.(3)____(4)____

Researchers analyzed data on to nearly 6,000 white, black and Hispanic children who participated in the Early Childhood Longitudinal Study-a nationally representative example-and had their height and weight measure over nine years, in kindergarten, first, third, fifth and eighth grades.(5)____(6)____(7)____
The study found nearly 40 percent of kindergarteners had a body mass index (BMD in the 75th percentile or above, down from 25 percent in the 1970s and 1980s, when the growth charts are developed by the U.S. Centers for Disease Control and Prevention.(8)____(9)____ While a BMI in the 75th percentile is still in the normal range, that child may be headed for being overweight or obese, Datar said. And if they're already at the 75th percentile in kindergarten they don't have far to go before they tip the overweight or obese category, which puts them at risk of serious health problems as adults.(10)____

答案解析

文章大意
本文讨论幼儿园学生的肥胖问题。最新一项研究表明现在的学生比七八十年代的学生要肥胖一些，并且肥胖的趋势在未来几年还将有增无减。研究人员选取将近8000名不同肤色的小朋友作为样本，在9年内对他们的身高和体重进行测量，发现接近40%的幼儿园学生的BMI（体重指数）超过75%，而七八十年代的BMI指数仅为25个百分点。
答案详解
1．become→becoming语法错误。on the road to中的to是介词，后面要跟动名词形式。
2．∧are→who语法错误。此句的主谓为It's，所以are应该是从句中的成分，kids后面应该是接一个定语从句，缺引导词who。
3．abnormal→normal语篇错误。句首Even一词加重语气，由此可推断此处指“甚至那些体重正常的学生体重也在增长”，abnormal应该改成normal。
4．serious→senior词汇错误。全文主要说的是儿童的肥胖问题，此处被修饰的词economist表示身份，可推断修饰词应该表示级别，而不是要表示专家是否“严肃”，serious改成其形近词senior符合语境，表示“高级经济学家”。
5．to→to词汇错误。“关于……的数据”直接用data on...，此处的to是多余的，故删除。
6．example→sample词汇错误。example表示“例子”，而此处是指6000多个孩子作为统计“样本”，应该是sample。
7．measure→measured语法错误。本题考查的是have sth．done的结构，意为“（让别人）把某事做成”。measure应该用过去分词形式measured，表示“身高和体重被测量”。
8．down→up语篇错误。文章谈及的是幼儿园学生肥胖情况有所增加。故BMI（体重指数）应该是比以前增高而不是降低，所以down要改成up。
9．are→were语法错误。此句的语境时间指的是上文的七八十年代，所以应该用过去时态。
10．tip∧→into词汇错误。tip在这里作动词，根据下文的category（体重等级）可推断此处动词有“加入”之义，tip只有作不及物动词时才有该义，与into搭配，原义表示“把……倒入容器”，故应加into。