did, cutting the amount of fatty, salty and sweet food.

24. According to the passage, people in industrialized nations would be much healthier if they ate___________.

A. more food than humans living 10,000 years ago did.

B. as much food as humans living 10,000 years ago did

C. more kinds of food eaten by people living over 10,000 years ago.

D. more of the same kind of food eaten by people over 10,000 years ago.

25. New kinds of sicknesses have been found because __________.

A. the human body has changed compared with humans who first appeared on the earth.

B. the way we live has changed a little.

C. our body can't deal with the changes in life style.

D. the way we live today is proper for the human body.

26. What is the main cause that people suffer from a lot of new sicknesses?

A. Ancient people did a great deal of physical exercise.

B. People today have a lot of alcohol.

C. People today have more tobacco.

D. Food today is quite different from that of ancient times.

27. According to some scientists , Stone-age people were much healthier than people today because they ate a lot of _____________.

A. milk and other dairy products. B. wild animals, fresh wild vegetables and fruits.

C. salt and sugar D. grain foods

The New York Times--Stephen Hawking, the brightest star in the firmament(天空)of science, whose insights shaped modern cosmology(宇宙论)and inspired global audiences in the millions, has died aged 76. His family released a statement in the early hours of Wednesday morning confirming his death at his home in Cambridge. Hawking's children, Lucy, Robert and Tim said in a statement: "We are deeply saddened that our beloved father passed away today." "He was a great scientist and an extraordinary man whose work and legacy will live on for many years to come. His courage and persistence with his brilliance and humor inspired people across the world."