Which of the following best states the main idea of the passage?

• A、It is easier to study medicine than music.
  
  

• B、Painters and composers use totally different methods to reach the public.
  
  

• C、All musicians must know how to time their own instruments.
  
  

• D、Musicians must acquire technique and understanding to perform well.
  
  

Task 1

16. Paragraph     ①    

17. Paragraph      ②    

18. Paragraph     ③    

19. Paragraph     ④    

20. Paragraph     ⑤    

A. What does the Calorimeter Look Like Inside?

B. What Program Was Designed for the Experiment?

C. What Is a Calorimeter?

D. Try to Find out Why People Gain and Lose Weight

E. How do the Volunteers Kill the Time?

F. Why did Nicola Join in the Experiments?

Task 2

21. The machinery outside the calorimeters records everything________

22. Nicola Waiters had time for the experiments________

23. Volunteers have to get prepared for the time in the calorimeter________

24. The experiments show that high-fat diets________

25. It seems Nicola will continue________

A. the volunteers do

B. to support their further sessions of experiment

C. because the life there can be very boring

D. make people overeat

E. because she was her own boss

F. after passing a high-protein test