43. What is the main cause mentioned in the article why 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 is quite different between life today and life in ancient times.

42. New kinds of sicknesses have been found because ______.

A.　　 the human body has changed compared with human first appearing on 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

41. The people in industrial nations would be much healthier if they ate ______.

A.　　 more foods as humans living 10,000 years ago did

B.　　　 as humans living 10,000 years ago

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

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

39. A. happy　　　　　　　　 B. lucky　　 `　　　　　　　　 C. surprised　　　　　　　 D. angry

38. A. catch　　　　　　　　 B. take　　　　　　　　　　　　 C. share　　　　　　　　　　　 D. enjoy

37. A. graded　　　　　　　 B. surveyed　　　　　　　 C. divided　　　　　　　　　 D. separated

36. A. bottom　　　　　　　 B. top　　　　　　　　　　　　　 C. center　　　　　　　　　　 D. head

35. A. English　　　　　　　 B. physics　　　　　　　　　 C. math　　　　　　　　　　　 D. biology

34. A. silence　　　　　　　 B. private　　　　　　　　　　　　　　 C. return　　　　　　　　　　 D. trouble