unit9secAB复习

Unit9When was it invented 1 What is the most useful invention do you know 合二为一合二为一 2 Potato chips invent by a chef call George Crum 3 He cooked them for a long time they were crispy 4 Who tea invent 同义句 同义句 5Tea not bring to the Western world until 1610 6ShenNong discovered tea when he boil drink water on over an open fire 7 Mr Ma leave his office nine o clock last night 直到直到 才才 8Some leaf 掉进掉进 the water and remained there for Let s have dinner together next week He has been there We go to the movie A sometimes B sometime C some time D some times 9 The water produced a smell please My parents are with my study Thank you It is my 10 Later he decided to taste the hot mix 11 one of the world s favorite drinks was invented A In the way B In this way C By the way D On the way 12 by mistake by accident He took my umbrella What would you do if you cut your hands 13 Does he often clean his room Yes his room clean by him every day 14 you can finish your work on time Thank you I see A On the way B In this way C In the way D By the way 15 What will he do after leave school What will he do after he leave school 16 Do you know if when he leave Sorry I don t know I will call you up if when he leave 补全对话补全对话 A 1 B No I didn t know potato chips were invented by mistake A They were invented by a chef called George B 2 A They were invented in 1853 B 3 A One day the customer thought the potatos weren t thin enough so George cut the potatoes really thin and cooked them for a long time until they were crispy Then he spri