形式上否定主句的谓语，实际上是否定从句的谓语当动词think, believe, suppose, imagine, expect, feel的主语是人称、谓语动词为没有任何副词修饰的一般现在时，它们的否定式实际上是对宾语从句的否定。表示说话者提出一种委婉的看法或主张。如：I think that he will help us. —I don't think that he will help us. 我认为它不会帮助我们。I believe that he is right. —I don't believe that he is right. 我认为他不对。I suppose that he likes it. —I don't suppose that he likes it. 我想他不喜欢它。
1) 经常性或习惯性的动作，常与表示频腮度的时间状语连用。时间状语： every…, sometimes, at…, on SundayI leave home for school at 7 every morning.2) 客观真理，客观存在，科学事实。The earth moves around the sun.Shanghai lies in the east of China.3) 表示格言或警句中。Pride goes before a fall. 骄者必败。注意：此用法如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。例：Columbus proved that the earth is round..4) 现在时刻的状态、能力、性格、个性。I don't want so much.Ann Wang writes good English but does not speak well.比较：Now I put the sugar in the cup.I am doing my homework now.句用一般现在时，用于操作演示或指导说明的性动作，表示言行的瞬间动作。再如：Now watch me, I switch on the current and stand back. 第二句中的now是进行时的标志，表示正在进行的动作的客观状况，所以后句用一般现在时。</p 产品：澳博培训供货总量：不限产品价格：议定包装规格：不限物流说明：货运及物流交货说明：按订单
