Childhood obesity rates are rising in many parts of the world，but in Amsterdam they are falling．The city's healthy weight programme has seen a 12 per cent drop in overweight and obese children．
"Go! "shouts the instructor．Tyrell throws himself forward to do sit-ups，then jumps up and runs to the end of the gym and back again．Though tired，the nine-year-old is smiling，working hard and having fun．He is also part of Amsterdam's efforts to improve the health of its children．At the back of the gym，Tyrell's mother，Janice，is sitting without her parents watching the fitness class． "He's really happy，because he knows
he is doing something， "she says．A year ago，Tyrell's school told Janice her son was overweight Children in Amsterdam are now regularly weighed and tested for agility（敏捷） and balance．
Kristel is Tyrell's health nurse．In a health centre in south-east Amsterdam，Kristel explains how she helps families such as Tyrell's．The most important thing is not to communicate in a standard way，because everybody already knows eating sugar and eating fast food are unhealthy，she says． "You really want to communicate the message on the level the parent and the child understand．So，when the child is overweight，it is more important for them to tell you what they think is going wrong．Janice thinks Tyrell was snacking on unhealthy food and playing computer games after school too much．
Tyrell has been taken to the supermarket to find healthier food choices and also introduced to some after-school activities．He now plays tennis，goes to gym class and is much more active．
（1）Why do the childhood obesity rates in Amsterdam fall？
B
B
A．The children want to be slim．
B．The city's healthy-weight programme helps decrease the rates．
C．Their parents ask schools to do so．
D．Childhood obesity rates are rising in many parts of the world．
（2）What does the underlined sentence "he is doing something"in paragraph 2 probably mean？
D
D
A．He is tired．
B．He does sit-ups．
C．He jumps up and runs again and again．
D．He improves his health．
（3）What is the most important thing when communicating with the children and parents on the obesity problem according to Kristel？
C
C
A．To communicate in a standard way．
B．To tell them a lot of negative instances．
C．To guide them to tell you what they think is incorrect．
D．To have a good attitude．
（4）What can we know from this passage？
B
B
A．Mother's encouragement and love are great．
B．Exercise and a healthy diet make us healthier．
C．Children hate sports because they are too boring and tiring．
D．Children have enough willpower to control their weight．
