In terms of snacks, the Change4Life recommends that children have at most ________.

A．one snack a dayB．three snacks a day

C．100 calories a day     D．200 calories a day

解析：D　考查细节理解。根据第二段第三句“The campaign advises parents   to give their children a maximum of two snacks a day, with each   containing no more than 100 calories”可知，该活动建议父母每天给孩子最多两份零食，每份 (所含热量) 不超过100卡路里的零食；据此可知，该项运动建议孩子每天最多消耗200卡路里的零食，故D项正确。

2．What can PHE's improved app help parents do?

A．Test the calories of snacks.

B．Choose delicious snacks.

C．Know the exact content in snacks.

D．Save much money to buy snacks.

解析：C　考查细节理解。根据第三段第一句“PHE said it had also improved its app so that it could mark the content of sugar, salt and fat in food and drinks”可知，英国公共卫生部表示，他们还改进了自己的应用程序，以便能够标记食物和饮料中糖、盐和脂肪的含量；据此可知，PHE改进的应用程序能帮助父母了解零食的成分，故C项正确。