课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: There are more of these in your mouth thanpeople in the world.A: teethB: blood vessels (血管)C: bacteria (细菌)（头版Popquiz答案：C） ……

课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。 ……

趣味猜猜猜。课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: Mosquitoes (蚊子) are attracted to people who eat which fruit? A. Oranges. B. Pineapples. C. Bananas.（答案见本期8版） ……

课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: If you keep a goldfish in the dark, what happens to it?A: It goes mad.B: It turns white.C: It grows fangs (尖牙). ……

课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: What is your brain mostly made of?A. Fat (脂肪).B. Muscle (肌肉).C. Water.Key:C ……

课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: After you eat, about how long does it takefor the food to get to your stomach (胃)?A: 7 secondsB: 7 minutesC: 7 hours ……

课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: Roughly (大概) how many hairs do peoplelose from their heads each day?A: 8B: 80C: 800(答案：B) ……

课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: After you eat, about how long does it takefor the food to get to your stomach (胃)?A: 7 secondsB: 7 minutesC: 7 hours ……

课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: How big is the heart of a blue whale, the world’s largest animal?A: the size of a pea (豌豆)B: the size of a carC: the size of a footballkey:B ……

课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: Which of these body parts keeps on growing for your whole life?A: your tongueB: your eyeballsC: your ears ……

课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: How fast does a sneeze (喷嚏) travel from yourmouth into someone else’s face? (Don’t try this!)A: 16km per hourB: 160km per hourC: 1,600km per hourkey:B ……

课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: Which animal causes over 20,000 road crashes each year in Australia?A: Ostrich (鸵鸟).B: Koala bear.C: Kangaroo. ……

课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: From how far away can a hungry shark sniff (嗅到) blood?A: 0.5 kmB: 1 kmC: 100 km ……

课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: About how many people does lightning (闪电) kill each year?A. 20B. 200C. 2,000 ……

课间很无聊？不如和同学一起挑战“趣味猜猜猜”，看谁能最快猜到答案。Q: What animal’s heart valve (心瓣膜) is sometimes used as a replacement (替代品) in human hearts?A. pigB. sheepC. duck ……