《3单元语法.ppt

2). V-ing形式和不定式都要有对称性;当主语是不定式时，表语也用不定式；反之，当主语是 V-ing 形式时，表语也用 V-ing 形式。 To see is to believe. = Seeing is believing. Do you mind ___ alone at home? A. Jane leaving B. Jane having left C. Jane’s being left D. Jane to be left ______ the meeting himself gave them a great deal of encouragement. A. The president will attend B. The president to attend C. The president attended D. The president’s attending Practice 1. --- What made Bill so angry? --- ___. His girl friend promised to come at 8:30, but she hasn’t come yet. A. Having kept waiting B. Being kept waiting C. To be kept waiting D. Being kept waited 2. The building ___ in our school is for us teachers. Though there’s noise most of the day, we still feel happy about it. A. built B. having been built C. to be built D. being built 3. The squirrel was lucky that it just missed ___. A. catching B. to be caught C. being caught D. to catch 4. While shopping, people sometimes can’t help ___ into buying something they don’t really need. A. to persuaded B. persuading C. being persuaded D. be persuaded 5. ___ many times, the boy still didn’t know how to do the exercises. A. Having taught B. Having been taught C. taught D. Teaching 6. I would appreciate ____ back this afternoon. A. you to call B. you call C. your calling D. you’re calling 7. — I must apologize for ____ ahead of time. — That’ all right. A. letting you not know B. not letting you know C. letting you know not D. letting not you know C Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created