时态是高考单项填空必考的语法项目。 一般现在时 一般过去时 进行时时态 完成时态 将来时态1.一般现在时 (do, does)1)1)The earth goes around the sun.The earth goes around the sun.2) His dog always barks at strangers.3) When his dog barks, he will know that a stranger may come.4) The train leaves at seven tonight.（事实、真理）（习惯性、经常性）（时间、条件状从句）（按规定、时间表）典型考题1.Could you tell me if it in winter in Beijing. A. snowed B. snows C. snow D. will snow2. I need one more stamp before my collection _.A. has completed B. completes C. has been completed D. is comple
