公开课unit1第四课时最新.pptpage1Unit 1Good morning!Section B 2a—self checkpage2page33aA: Good morning ,Alice!B: Good morning, Bob!A: How are you?B: I’m OK./ I’ m fine, thank you.A: Good afternoon ,Alice!B: Good afternoon, Bob!A: How are you?B: I’m OK./ I’ m fine, thank you.A: Good evening ,Alice!B: Good evening, Bob!A: How are you?B: I’m OK./ I’ m fine, thank you.page4 Hi, Dale!Hello, Eric!Good afternoon!Good ..