It was the first day of biology class. The teacher wanted to give a good 1 to his class. He wanted to 2 his students’ eyes to the world of biology. He knew that 3 young students was not easy, so he worked 4 and tried to find a good way to teach this class. 5 thinking for a long time, he made a 6 at last. He decided to show the kids something 7 and teach them a lesson at the same time. He asked his students to 8 carefully. Then he began. He put a worm(虫子) into a glass of water. The worm 9 around in the water. Then he put a second worm into a glass full of alcohol(酒精). It died at once. He asked the students if anyone knew about 10 they learned from it. A boy said, “You showed us that if we drink alcohol we won’t have worms.” 小题1: A．pay B．start C．day D．tour 小题2: A．go to B．open up C．call up D．keep out 小题3: A．sending B．fitting C．following D．teaching 小题4: A．hard B．quickly C．loudly D．alone 小题5: A．Before B．While C．After D．When 小题6: A．story B．decision C．cake D．face 小题7: A．crazy B．impossible C．strange D．interesting 小题8: A．watch B．use C．listen D．write 小题9: A．flied B．ran C．jumped D．swam 小题10: A．what B．how C．when D．why