I. 要点1、 一般现在时(1) 表示经常发生的动作或现在存在的状态，常与sometimes, always, often, every day等时间状语连用。如：Sometimes, we go swimming after school.(2) 表示客观真理、科学事实等。如：Th...2015-08-21
it 与there be的用法I.要点1、it的用法(1)用作人称代词，代替前文提到的无生命的事物，动植物、婴儿及指示代词this, that，如，I have a new pen. It is beautiful.The Browns have a new baby. It's cute.(2)...2015-08-21
As we have seen, the focus of medical care in our society has been shifting from curing disease to preventing disease-especially in terms of changin...2015-08-21
功能性作文Temporary Hotel ReceptionistPleasant mediate-sized hotel at the heart of Cambridge seeks a young person with pleasant personality to assist...2015-08-21
