1．跑步比滑雪更经济和安全。
      Running is_____and_____than skiing.
2．乒乓球比体操更流行。
      Table tennis is_____ _____ than gymnastics.
3．他钢琴弹得很差。
      He plays the piano_____ _____ .
4．他们需要尽快学会并且说好英语。
      They need to_____ _____ _____ _____ and speak it_____.

1. 我不晚到，因为我不喜欢坐在其他同学后面。  
    I don't                                because I don't like sitting               the other students.
2. 她要领着他们游览北京的四合院。  
    She is going to                                               a  Beijing  si he yuan．
3. 坐在后面很难看清楚，也听不清楚。    
    It's                               see and hear at the back.

1. 它是世界上最快的火车。  
It's                                train                                               .                                    
2. 相同的路程乘汽车需要大约30分钟。  
The same journey                              30 minutes                 car.
3. 英国航空公司是最繁忙的国际航空公司之一。  
British Airways is                               the                international airlines.
4. 它从上海火车站到浦东机场用8分钟。  
    It goes from Shanghai Station to Pudong Airport                                                 .                               

1. 最受欢迎的飞机是波音747。 
                                                  plane is the Boeing 747.
2. 乘公共汽车旅行比乘飞机便宜得多。    
    It's                              to travel by bus than by plane.
3. 最流行的交通方式是渡船。  
    The most               way is                                  .
4. 从北京到天津最好的方式是乘火车。 
                                                          from Beijing to Tianjin is by train．

1. 一个小城市               
2. 事实上；实际上               
4. come/be from                
5.  in the north