英语unit

人教版新七上英语Unit 3重点单词用法

across过；穿过，介词和副词。用法：across作为介词时，常用于表示穿过或跨越某个区域或物体。如，They swam across the river just now. across作为副词时，通常表示横穿或斜穿某个区域或物体。如，The bird f

There be句型的一般疑问句及回答：Is there a river in the forest? Yes, there is. / No, there isn't. Are there any tall buildings in the nature p