北师大版高中英语选修六unit17laughterword导学案9内容摘要：
have been fixing the fridge all this morning. I have fixed the fridge. 2. 进行时态表示暂时的动作 ，非进行时态表示永久的动作。 We were working from two to four yesterday afternoon. We worked in that factory. 3. 进行时态表示较长时间内反复进行的动作，非进行时态表示一次性动作。 You have been saying you can succeed for several years. You said you could succeed. 4. 进行时态侧重于时间的延续，非进行时态侧重于说明事实。 It was raining cats and dogs last night. It rained cats and dogs last night. 不能用进行时的动词： know, like, understand, belong, resemble, realize等 . 【跟踪练习】 (D 级 ) 1. It heavily for two days and the ground was very wet. A. had been raining B. has been raining C. had been rained D. has rained 2. Cathy is taking notes of the grammatical rules in class at Sunshine School, where she English for a year. A. studies B. studied C. is studying D. has been studying 3. I have got a headache. No wonder. You in front of that puter。阅读剩余 0%
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