1. The human body is an incredibly complex and intricate system. Please finish these sentences related to the human body.
(1) The brain is much more active at night than_____.
(2) About 80% of the brain is_____.
(3) The largest internal organ is_____.
(4) The_____in your stomach is strong enough to dissolve razor blades.
(5) The surface area ofa_____is equal to a tennis court.
(6) Women’s hearts beat faster than_____.
(7)_____is the day of the week when the risk of heart attack is greatest.
(8) Over 90% of diseases are caused or complicated by_____.
(9) You could_____after removing a large part of your internal organs.
(10) The largest cell in the human body is_____and the smallest is .
2. Choose two interesting facts in Task 1. Discuss the reason(s) behind with your partner.