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新概念英语青少版StarterB Unit 13 复习祈使句的否定形式 Catch the ball ! Hide behind the bush ! Run in the field ! Drink you water ! Don’t catch the ball ! Don’t drink you water ! Don’t run in the field ! Don’t hide behind the bush ! Go to school ! Eat your cake! Have breakfast! Watch TV! Don’t go to school! Don’t watch TV! Don’t have breakfast! Don’t eat your cake! Go! Eat! Drink ! Catch ! Don’t go! Don’t catch! Don’t drink! Don’t eat! Unit 13 I can dance! draw draw a picture draw flowers dance listen read write play football tennis play tennis table tennis ping-pong play tennis play table tennis play football play + 球类 piano play the piano violin play the violin play + 球类 play + the + 乐器 the的用法 用于已经提到过的人或物 I have a car. The car is red. 用在乐器前 play the piano play the violin can 能,行 我是很有感情的 情态动词 I can …… I can play the violin. I can play the piano. can I can play the violin. I can not play the violin. I can’t play the violin. 口诀: 变否定,也不难,can的后面加not 变否定,也不难,把can转化为can’t sing swim She can sing. He can swim.