题目内容：

    Many scientists believe our love of sugar may actually be an addiction. When we eat or drink sugary foods, the sugar enters our blood and affects parts of our brain that make us feel good.

1.In this way, it is in fact an addictive drug, one that doctors recommend we all cut down on.

“It seems like every time I study an illness and trace a path to the first cause, I find my way back to sugar,” says scientist Richard Johnson. One-third of adults worldwide have high blood pressure, and up to 347 million have diabetes. Why? “ 2.“ says Johnson.

Our bodies are designed to survive on very little sugar. Early humans often had very little food, so our bodies learned to be very efficient in storing sugar as fat. In this way, we had energy stored for when there was no food. But today, most people have more than enough. 3.

So what is the solution? It’s obvious that we need to eat less sugar. 4.From breakfast cereals to after-dinner desserts, our foods are increasingly filled with it. Some manufacturers even use sugar to replace taste in foods that are advertised as low in fat.

But there are those who are fighting back against sugar. 5.Other schools are growing their own food in gardens, or building facilities like walking tracks so students and others in the community can exercise. The battle has not yet been lost.

A. We take in more energy and fat.

B. Then the good feeling goes away, leaving us wanting more.

C. Our ancestors were used to poor food, clothing and shelter.

D. So the very thing that once saved us, may now be killing us.

E. Sugar, we believe, is one of the reasons, if not the major one.

F. The trouble is, in today's world, it's extremely difficult to avoid.

G. Many schools are replacing sugary desserts with healthier options like fruit.