Nowadays the people are enjoying a more fortable life and many people are suffering from obesity(肥胖)．Thus，losing weight bees very popular．
【小题1】 ，weight reducing is a tricky(难处理的)topic．Some people lose weight quickly by crash dieting 【小题2】 other extreme measures．This won’t help them lose weight since they usually gain back all(and often more)of the pounds they lost 【小题3】 they haven’t permanently changed their habits．What’s worse，sometimes these extreme measures will affect the individual’s health．
In my view，before one decides to lose weight，he first of all should make 【小题4】 clear whether he should or not lose weight．The best way to find out if you are at a healthy weight or if you need to lose or gain weight is to talk to 【小题5】 doctor．He or she can pare your weight 【小题6】 healthy norms(标准)to help you set realistic goals．If it turns out that you would benefit 【小题7】 weight loss then you can follow a few of the simple suggestions 【小题8】 are widely accepted by weight reducing experts to get it started．However
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(答案→)However
解析：现在减肥非常受欢迎的，但是减肥也是很难的，文章介绍不正确的减肥会对健康造成的危害和正确的减肥方法。
【小题1】上文说减肥是很受欢迎的，这句话说减肥是很难的。表示转折关系：However
【小题2】一些人通过绝食或其他极端的方式减肥。Or表示“选择”
【小题3】因为他们没有永久改变习惯，所以很快就会反弹。表示原因，用because
【小题4】在减肥前，一个人要明确是否应该减肥。Make it clear that明确…，it是形式宾语
【小题5】最好的办法是和一个医生谈一谈。A doctor泛指一个医生
【小题6】他会把你deep体重和健康标准相比较，pare sth with sth把…和…相比较
【小题7】如果你能从减肥中受益。Benefit from受益于
【小题8】你可以接受减肥专家广泛接受的减肥建议。which/that引导的是定语从句，修饰suggestions