题目内容

---Did you hear that water in Tai Lake smelled terrible?
--- Yes.It ___________ because of people and factories.
A.  polluted     B. was polluted   C.has polluted              
B

试题分析: be+动词的过去分词构成被动语态,其过去时为were/was+动词的过去分词。句意:你听说太湖的水闻起来非常糟糕了吗?是的,因为水被人类和工厂污染了。问句是过去时,主语又是it,故选B。
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There are different outdoor activities for different seasons. In spring we can fly kites .In summer, we can go swimming or sailing. In autumn, It is a good idea to camp or hike. In winter, we can go to ski or skate they bring us a lot of fun .they make us strong and fit, too. So it is important for people of all ages to take part in some outdoor activities at the right time.
There are many group activities ,like football and basketball .The members work together for the same goal(目标). So group activities need team spirit(团队精神). It is very useful for a person to have team spirit. It is good for us in life and work.
Old people like walking and jogging .These outdoor activities don’t need much strength(气力). Young people like exciting activities ,like diving(潜水), skiing and horse riding. Children like fun activities like flying kites .
Some outdoor activities are dangerous, like climbing rocks. So we must be careful when we take part in them .
Title :outdoor    小题1:   
Activities in different    小题2:
Spring is a good season for   小题3:  kites .In summer ,we can sail or 小题4: .In autumn ,we can go    小题5:   or hiking .In winter,it is a good idea to go skiing or   小题6:   .
  小题7:    activities
football and basketball can help build team spirit
Activities for     小题8:    people
Old people can walk and jog. young people can dive ,ski and
  小题9:    horse .Children can fly kites . 
   小题10:     activities
Not all outdoor activities are safe .we must be careful with some outdoor activities like climbing rocks.

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