there后面加什么be动词
There is a ruler on the desk. 书桌上有一把尺；
There are+复数主语+地点状语 ；
There are four apples on the tree. 树上有四个苹果。
There are so many different makes to choose from.
有很多不同的型号可供选择。
There have been many changes in recent years.
近几年发生了许多变化。
One moment he wasn\'t there, the next he was.
他一分钟前还不在那里，一会儿又在了。
There is no difference between the two in quantitative terms.
两者在数量上毫无差别。
There was much discussion about the reasons for the failure.
就失败的原因进行了大量的讨论。
