fore. (两个助动词:have, been )Р [疑问句] Have you been there before?Р [否定句] I have not been there before.Р [肯定句] I shall be having my supper at six tomorrow evening. (两个助动词:shall, be )Р [疑问句] Will you be having my supper at six tomorrow evening?Р [否定句] I shall not be having my supper at six tomorrow evening.Р 四. 助动词be,无词义,辅助主要动词一起在句中作谓语动词。用法如下:Р 1. be+doing:构成进行时态,有现在和过去两种进行时态。如:Р The girls is reading and copying the new words now.Р Young Tom was always asking questions and trying out new ideas.Р 2. be+going to do,表示"打算或将要做某事",be有现在和过去两种形式。如:Р We are going to plant trees in the park.Р I didnР’t know if she was going e here.Р 3. be+to do,表示"按计划安排将要做某事"。如:Р The new shop is not to be opened till next Monday. One night an angel came toР Mary and told her that she was to have this special boy.Р查看更多本站专题
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