[解析]
(1)D.联系上文题.从前面的句子:but most people aren't sure how to change it.可知大多数人还不知道如何去改变它.D项:Besides,no magical diet will make you look like someone else.另外,没有神奇的饮食会让你看起来象另外一个人.选D.
(2)E.理解判断题.从后面的句子:The best way to find out if you are at a healthy weight可知找出你是否在一个健康的体重范围的最好方法是看医生.E项:Being healthy is really about being at a weight that is right for you.健康事实上是拥有一个适合你的体重.故选E.
(3)G.联系上文题.从前面的句子:if you need to lose or gain weight is to talk to a doctor.可知如果你需要减肥或者增肥,你需要看医生.G项:They will compare your weight with healthy standards and help you set goals.他们会比较你的体重与健康标准作比较并和帮助你设定目标,故选G.
(4)C.段落理解题.第四段People who lose weight quickly by crash dieting or other extreme measures usually gain back all of the pounds they lost,because they haven't permanently(永久地) changed their habits主要在讲那些用特殊方式快速减肥的人体重经常会反弹,因为他们没有改变自己的生活习惯,因此减肥应该是一个长期的过程.B句说体重控制是一个长期的结果.能概括第四段的内容.故选C.
(5)A.联系上文题.联系空白处前文是一个具体的例子:尝试着减少你吃东西的量.后面Once you have that down,start gradually introducing healthier foods and exercise into your life说一旦你减少成功,那就开始慢慢接触健康食品并去尝试吃它们.所以空白处应该是一个减少不健康食品的例子.A句谈到尝试放弃每周一瓶汽水的习惯.正是谈到放弃一个不健康的习惯.故选A