1. This passage　is mainly concerned with＿＿＿
　　[A] people＇s growing interest in natural foods
　　[B] natural food and healthy diet
　　[C] the importance of fibre in foods
　　[D]harrnful effects of sugar
　　2. The passage tells us that＿＿＿
　　[A] sugar is bad for the health
　　[B] the use of sugar is habit forming
　　[C] people need sugar to give them energy
　　[D] sugar provides us with nothing useful
　　3. Which of the following is a reason for people's growing interest in natural foods?
　　[A] They want to return to nature.
　　[B] They want to eat all kinds of foods.
　　[C] Natural foods are very delicious.
　　[D] They are more health conscious.
　　4. Food that is rich in organic matter＿＿＿
　　[A] has been nourished by fertilizers
　　[B] contains vegetable matter that has not been consumed
　　[C] has had chemicals and fertilizer added to it
　　[D] contains large quantifies of vitamins
　　5. Which of the following is NOT mentioned in the passage?
　　[A] Chickens are fed on food which is little better than garbage.
　　[B] Chickens live in very crowded condition.
　　[C] The eggs chickens produce lack vitamins.
　　[D] Chickens are free to move about.