suppose用法详解.ppt

Suppose用法详解 一、关于否定转移 表示“想”、“认为”、“料想”等，后接否定的宾语从句时通常将否定转移到主句上。如： I don’t suppose he is really ill. 我看他不是真病了。 I don’t suppose that he will come in time. 我看他不会及时来的。 注意以下简略答语的使用： A：Will he win? 他会赢吗? B:I suppose so. 我想他会赢吧。 B:I don’t suppose so. [I suppose not. ] 我想他不会赢。 二、关于词序 2. 注意以下正误句型的词序: 你认为他会去了哪里呢? 正：Where do you suppose he has gone? 误：Do you suppose where he has gone? 你认为是谁偷了这钱呢? 正：Who do you suppose has stolen the money? 误：Do you suppose who has stolen the money? 三、用于be supposed to 用于 be supposed to, 意为“应该”、“理应”，其后接动词原形(有时为进行式或完成式)。如： You are supposed to be there before dark. 你应该在天黑前赶到那儿。 He’s supposed to be doing his homework at home now. 他现在应该在家里做作业。 He is supposed to have written us a letter. 他本来应该给我们写封信的。 注：用于否定句，有时表示委婉地禁止，意为“不应当”、“不可”、“不许”。如： You’re not supposed to smoke in here. 此地不准吸烟 他们本来应该在一小时以前赶到这儿的。 正：They were supposed to be here an hour ago. 正：They are supposed to have been here an hour ago. What makes you suppose him to be connected with them? 你怎么会认为他与他们有联系呢？ suppose+名词/代词+不定式，如： I supposed her to have already left for home. 　 我认为她已经动身回家了。 四、用作连词 用来表示条件(相当于连词 if)，意为“假设”，也可用 -ing的形式，若语气不肯定，有时还可用虚拟语气。试比较: 假若他不来，那我们怎么办? 正：Suppose [Supposing] he is absent, what shall we do? 正：Suppose [Supposing] he was absent, what should we do? 五、表示建议 用来表示建议，意为“……吧”、“……怎么样”，后接从句时可用现在时态或过去时态，相比之下用过去时语气更委婉。如： Suppose we have [had] a rest. 我们休息一会儿吧。 Suppose we start [started] tomorrow. 我们明天动身吧。 * *