Wouldn’t it be great to be able to drop some weight simply by sipping at a tasty green teabased beverage (饮料)?That’s what the manufacturers (生产商) of some new diet drinks have been claiming—but are these drinks too good to be true?
“They do not promise what they deliver,”clinical nutritionist Heller said.“There are so many products on the market that make health claims.Much of the‘scientific evidence’upon which these claims are based is either nonexistent or wrongly interpreted.”
To add credibility to their claims,these companies“like to throw around terms like‘thermogenesis’,”said Heller.“Thermogenesis means your body’s metabolism (新陈代谢) acts for a while and produces heat.The process of thermogenesis takes place every time you eat.The theory is that some products will increase thermogenesis for a long period of time so you burn more calories and fat and will lose more weight.Now there is not enough scientific evidence to support these claims.”
While the drinks are probably not harmful-except to your wallet,Heller thinks that people who try them may not realize how highly caffeinated they are.
In place of the green tea drinks,Heller has suggestions of other drinks that help control a dieter’s appetite.For instance,green and black tea“contains healthy chemicals Tea also contains caffeine,just enough to give you a late afternoon energy boost with no calories.Add a small snack like a handful of nuts or a small nonfat yogurt and you’ll be good to go for the rest of the day.”
She also likes hot chocolate that’s made with soy milk but no whipped cream.
According to the passage,the new drinks are claimed to____________ .

A．provide you with energy

B．be free of caffeine

C．contain healthy chemicals

D．reduce weight easily

From what Heller said in Paragraph 2,she thinks_____________ .

A．it is not true that new beverages can help people lose weight easily

B．it is wrong for manufacturers to claim their products to be healthy

C．on beverages are healthy to people

D．the manufacturers often produce highly caffeinated drinks

What will happen in the process of thermogenesis?

A．Your body’s metabolism will slow down to burn more heat.

B．Fat will be burnt as your body’s metabolism acts.

C．You will lose more weight as you increase your calories.

D．The more you eat,the more calories will be burnt.

The underlined part in Paragraph 4 probably means that _________________.

A．there is no harm in drinking the new drinks

B．there is a possibility that the drinks are harmful

C．the drinks may cost you a lot of money

D．the drinks may make your wallet not strong enough