牛津初中英语课件9B U1课件3.ppt

using can ,could, may and might,kitty, can i borrow your dictionary?,excuse me, sir. may i have a look at the name of your book?,mr wu, could i ask you some questions about mars?,kitty -can ? mr wu - could ? sir - may?,friend,teacher,stranger,working out the rule,informal,formal,formal and polite,very formal,used with friends,used with teachers or adults(成人),used with strangers and people you respect,very polite but rarely used（很少使用）,practice,writing sentences to ask for permission in the following situations,situation 1 you are on a bus and the person in front of you has the window open. it starts to rain and youre getting wet.,may i close the window?,practice,writing sentences to ask for permission in the following situations,situation 2 your cousin is watching a boring programme on tv. you ask her permission to change the channel.,can i change the channel?,practice,writing sentences to ask for permission in the following situations,situation 3 your uncle and aunt have invited you to join them in a walk in the park. you want to take your dog with you.,could i bring my dog?,learning for use,1 dad, _ (may, could) i take your camera? yes, you _(can, may). 2 _(may, can) i borrow this helmet, madam? no, you _(couldnt, may not). 3 _(might, can) i borrow your sport