A few months ago the potato was considered an enemy in the obesity battle but a new study shows the food isn't that bad after all．
In June，researchers from Harvard University found that eating some of the potato[]every day，whether mashed（被磨碎），deep fried or baked，caused more weight gain than an extra can of drink or red or some kind of meat．The conclusion was that it happened because potatoes were always cooked﹣﹣﹣﹣﹣making it easier for the body to change the starch（淀粉） which would increase the blood sugar levels．The body then had to work extra hard to get levels down but falling blood sugar made people hungry，which led to eating more food．
But a University of Otago study showed today brought some good news for spud lovers．It found it was hard to tell the glycemic index（GI）（血糖指数） level of mixed meals for persons．"In general，different foods are tested for GI and it is less usual to test the GI for a whole meal，"one of the study's authors，Hayley Dodd，said．"However，in this study，the GIs of three meals were tested．The meals all contained chicken，peas，carrots and mutton together with a lot of food including potato，white rice or spaghetti．"
It found the GI for each meal lower than thought； researchers had expected the potato meal would have a GI of 65，but it came in at 53，which was low．"Although potato is high﹣GI food into their meals﹣﹣﹣﹣﹣our work suggests that having a small amount of potato with a meal isn't going to drive your blood sugar high．
The study involved 30healthy people aged 18﹣50．The research has been published in the October issue of the American．
8．The underlined word"spud"in the third paragraph may mean ．
A．chicken
B．pea
C．carrot
D．potato
9．The potato will make people fat easily when ．
A．it is eaten raw
B．it is cooked
C．it has blood sugar
D．it is eaten[]with drinks
10．If a person has a low blood sugar，he will ．
A．feel angry quickly
B．become hungry easily
C．get thin soon
D．eat food slowly
11．From the study of the University of Otago we can know ．
A．people will get fatter and fatter if they eat potatoes
B．potatoes won't make people fat if eaten with others
C．he glycemic index in the potatoes is very low
D．potatoes are the main enemy in the obesity battle．