读句子，判断图片的对(√)错(×)。

( ) 1. I took pictures last holiday. 

( ) 2. He is going to climb mountains. 

( ) 3. They often play football after school. 

( ) 4. We go to Beijing by train. 

( ) 5. My mother saw bears last weekend. 

跳汰机的给煤量一定要均匀、连续、稳定。